Re: [WIRELESS-LAN] Ekahau Licensing & Alternatives

[James Helzerman]

Hi, how did they know it was a generic account?  Are they sending back
information about the device it's on and mapping the login?  Or they just
using some heuristic that looks to see if it may be a generic account such
as sending emails to thT user account and getting no response.

Jimmy

On Sun, Jul 18, 2021, 10:56 PM Jason Cook 
wrote:

> This frustrated us a bit too. Their licensing seems to be aimed primarily
> at Wifi professionals who use this all the time/profit from it as part of
> their business. Doesn’t really fit our environments at all.
>
>
>
> Over the course of a year lets say at best we’d use this at .5 of an FTE
> (I’m probably overstating that, would prefer to use it more but we just
> don’t have time)
>
> There’s 5 people in our team. We aren’t going to pay for 5 licenses for
> something that is use so little… not at the license cost they have anyway.
>
>
>
> Oh well.. what’s the difference in a generic email versus personal email
> for them anyway..
>
>
>
> --
>
> Jason Cook
>
> Information Technology and Digital Services
>
> The University of Adelaide, AUSTRALIA 5005
>
> ---
>
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>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Dan Lauing
> *Sent:* Monday, 19 July 2021 11:39 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Ekahau Licensing & Alternatives
>
>
>
> I don't blame them for not wanting multiple users on a single license.
>
>
>
> However, I do blame them for not warning us that we were apparently
> breaking the ToS and decided to kill our license without notice. This left
> me, on a weekend and in a pinch, unable to even open my surveys.
>
>
>
> How were we breaking their ToS? Well, even though I was the only one that
> ever used the product, we licensed it under a "generic" account and not my
> personal one. We do this all the time in the case that someone leaves and
> we don't know which account is tied to what. In my case, the license was
> tied to the generic account before being given to me so I couldn't have
> known I was breaching anything. The only way to solve this is calling them
> directly.
>
>
>
> All this coming from an Ekahau fanboy. In my opinion, obviously, this is
> not how you generate goodwill with your clients.
>
>
>
> On Sun, Jul 18, 2021 at 6:13 PM Rick Brown  wrote:
>
> We’re surveying and designing for the Aruba VHD parameters in all of our
> campus buildings with academic ones taking precedence.  We have 4 engineers
> with each a license and Sidekick.   This is obviously a multi year project.
>   We have been asking for a read only version so that our NOC can view the
> design files.  Our hope is that they’ll keep the ability to look at
> coverage areas on a per AP basis.
>
>
>
> You can’t really blame Ekahau not wanting multiple users using a single
> license.   It was frustrating for us since one engineer only designs part
> time, but it’s the cost of doing business.
>
>
>
> Just my $0.02 worth.
>
>
>
> Rick
>
>
>
> On Jul 18, 2021, at 6:52 PM, Phill Solomon <
> 0150915d379b-dmarc-requ...@listserv.educause.edu> wrote:
>
> 
>
> Hi TJ,
>
>
>
> I am glad this not just us – we don’t use the software / sidekick often
> and usually outsource new surveys. We are being asked to purchase / renew
> with Connect – I can see why we would need it if we only do rare survey.
> I would however like the ability to read the survey files that we get
> commissioned  - I hear that there is soon to be a ‘read only version’ cany
> anyone confirm this?
>
>
>
> Any alternate products?
>
>
>
> Thanks..
>
>
>
>
>
> *Phill Solomon*
>
> Senior Technical Lead (Network Engineering)
>
> Deakin University, IS - AV & Networks,  ICT Infrastructure Services,
> eSolutions
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *McClintic, Thomas
> *Sent:* Friday, 16 July 2021 12:45 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] Ekahau Licensing & Alternatives
>
>
>
> We have 2 Ekahau licenses tied to Sidekicks. We use a team cloud account
> for uploading projects, with the understanding that using the software
> requires the Sidekick to be attached to the machine.
>
>
>
> Ekahau has notified us that this is not compliant with their licensing
> terms and 

Re: [WIRELESS-LAN] ISE Dynamic VLAN redirect with single eduroam WLAN

[James Helzerman]

ription information can be found at
> https://www.educause.edu/community
>
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> --
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> The materials in this message are private and may contain Protected
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-- 
James Helzerman
Lead Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Cisco Catalyst 9800-CL

[James Helzerman]

Hi.  Do you currently have wifi or any stats from the past (during normal
times) to see what your use was before?  Without knowing your use trends
it's hard to say.  Looking at my campus usage and taking a 400 AP
subsection I would be hardpress to go over 2Gbps. YMMV

-Jimmy

On Fri, Mar 5, 2021 at 9:31 PM Christina Klam  wrote:

> *  Private cloud
> *  Central for now but SD-Fabric (as soon as I have time to work on it)
>
> Thanks,
>
> Christina Klam
> Network Engineer
> Institute for Advanced Study
> 1 Einstein Dr
> Princeton, NJ 08540
> (m) +1 609-751-7899
> (o) +1 609-734-8154
> ck...@ias.edu
>
>
> --
> *From: *"James Helzerman" 
> *To: *"The EDUCAUSE Wireless Issues Community Group Listserv" <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> *Sent: *Friday, March 5, 2021 10:51:34 AM
> *Subject: *Re: [WIRELESS-LAN] Cisco Catalyst 9800-CL
>
> Hi, we do not have these but in a cursory look led me to some questions
> that would be very deterministic if you should be concerned.
>
>- Will you be using a public or private cloud solution?
>- Will you be using Flex-connect, SD-Fabric or central for the data
>traffic?
>
> -Jimmy
>
> On Thu, Mar 4, 2021 at 10:22 AM Christina Klam  wrote:
>
>> Good Morning,
>>
>> Is anyone running Cisco Catalyst 9800-CL?  I am concerned about the
>> 2.1/5Gbps limitations but do not know if I should be as we have less than
>> 400 APs -- 95% of which are in non-conference/classrooms.
>>
>> Thank you,
>>
>> Christina Klam
>> Network Engineer
>> Institute for Advanced Study
>> 1 Einstein Dr
>> Princeton, NJ 08540
>> (m) +1 609-751-7899
>> (o) +1 609-734-8154
>> ck...@ias.edu
>>
>> **
>> Replies to EDUCAUSE Community Group emails are sent to the entire
>> community list. If you want to reply only to the person who sent the
>> message, copy and paste their email address and forward the email reply.
>> Additional participation and subscription information can be found at
>> https://www.educause.edu/community
>>
>
>
> --
> James Helzerman
> Wireless Network Engineer
> University of Michigan - ITS
> Phone: 734-615-9541
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
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-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Cisco Catalyst 9800-CL

[James Helzerman]

Hi, we do not have these but in a cursory look led me to some questions
that would be very deterministic if you should be concerned.

   - Will you be using a public or private cloud solution?
   - Will you be using Flex-connect, SD-Fabric or central for the data
   traffic?

-Jimmy

On Thu, Mar 4, 2021 at 10:22 AM Christina Klam  wrote:

> Good Morning,
>
> Is anyone running Cisco Catalyst 9800-CL?  I am concerned about the
> 2.1/5Gbps limitations but do not know if I should be as we have less than
> 400 APs -- 95% of which are in non-conference/classrooms.
>
> Thank you,
>
> Christina Klam
> Network Engineer
> Institute for Advanced Study
> 1 Einstein Dr
> Princeton, NJ 08540
> (m) +1 609-751-7899
> (o) +1 609-734-8154
> ck...@ias.edu
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues

[James Helzerman]

t.hurt%40LOUISVILLE.EDU%7Cadb69f2efe2d4909aca308d8d1c34776%7Cdd246e4a54344e158ae391ad9797b209%7C0%7C0%7C637489983972831721%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=Ixwj%2FCPXJmJzIKFJklsTZiKydrB1X4Psm3linB6hLDs%3D=0>
>
> **
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-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Issues with Zoom in Res Halls

[James Helzerman]

Do you know the bug id by chance for the issues with 8.5 code you mention?

Thanks

-Jimmy

On Tue, Jan 26, 2021 at 1:30 AM Jeffrey D. Sessler 
wrote:

> There was mention of a bug in one of the code bases (maybe 8.5) that could
> cause this, but there was updated code for it.
>
> Also, go have a look at the events for the AP's in question.  We had a few
> reports of call pauses/lags, and with the Zoom diagnostic data from the
> meeting details in-hand, we correlated it to the client's connected AP
> switching channels because of RRM/Interference.
>
> If you're not familiar with the Zoom client/meeting data, ask your Zoom
> admin to give you access to the dashboard. For live and past meetings you
> can see a wealth of information on what the client is up to and how it is
> performing.
>
> Jeff
>
> -Original Message-
> From: The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> On Behalf Of Charles Rumford
> Sent: Friday, January 22, 2021 7:22 PM
> To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: [WIRELESS-LAN] Issues with Zoom in Res Halls
>
> Hey -
>
> We have started getting reports of issues with Zoom calls in our Res
> Halls. Most of the complaints have been around multiple drops during calls
> or lagging calls.
> Our res halls are currently only at 40-50% capacity if that.
>
> I was curious if anyone else has been seeing any issues with an increase
> of Zoom calls from on campus students.
>
>
> --
> Charles Rumford (he/his/him)
> IT Architect
> ISC Tech Services
> University of Pennsylvania
> OpenPGP Key ID: 0xF3D8215A
>
> **
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>
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-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Weak Security

[James Helzerman]

Hi.  Our first roll out for 802.1x used WPA2 AES and we have had zero
issues.  All clients these days (and for many years) support it.

-Jimmy

--
James Helzerman
Wireless Network Engineer
University of Michigan - ITS

On Tue, Dec 1, 2020 at 9:56 PM Entwistle, Bruce <
0139f1156e70-dmarc-requ...@listserv.educause.edu> wrote:

> Apple devices that are updating to IOS 14 are now reporting that wireless
> security is weak.   We are currently using a combination of WPA/TKIP and
> WPA2/AES for security, but are considering the move to WPA2/AES only.  I
> was looking to see what others have done and what challenges you faced in
> making these changes.
>
>
>
> https://discussions.apple.com/thread/251805737
>
>
>
> Thank you
>
> Bruce Entwistle
>
> Network Manager
>
> University of Redlands
>
>
>
> **
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> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
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>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Client roaming

[James Helzerman]

Best thing you can do for clients is have a 5GHz only SSID.  We moved over
the summer to this with our main 802.1x network and it has fixed a ton of
these roaming issues and complaints of performance.  Basically take the
decision making out of the hands of the client, give them only one band to
choose from.  Band Select / steering may work but can lead to a lot of
users issues as roaming can break if the client doesnt take the hint to use
5GHz.  Transitions with real time applications like voice can be negatively
affected.

For those on our campus that have 2.4GHz only devices, we offer eduroam in
both bands and have them use that then use AAA override to place them in
the same network as our branded ssid giving them all the same access to
resources.  Our branded 802.1x, MWireless, has 95% of our user devices.

-Jimmy


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS

On Fri, Oct 9, 2020 at 12:03 PM Enfield, Chuck  wrote:

> FWIW, I’ve been reluctant to assume this is a new problem.  Usage patterns
> have changed in the dorms and people are spending much more time using
> real-time protocols than ever before.  Those protocols make brief
> connectivity issues very noticeable.  It’s quite possible we’ve always had
> these problems, but they rarely bothered users enough to make them open
> trouble tickets.
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Michael Davis
> *Sent:* Friday, October 09, 2020 10:49 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Client roaming
>
>
>
> We're an Aruba shop and only seeing it on iOS and MacOS devices.
>
> On 10/9/20 10:44 AM, Mallon, Jason wrote:
>
> I have not been able to pinpoint a device type as of yet.  It seems to be
> happening across all platforms including game systems.
>
>
>
> Thanks,
>
> *Jason Mallon* | Network Engineer III
>
> [image:
> /var/folders/h2/r448cc4j4_v70yns10brx6r0gq/T/com.microsoft.Outlook/Content.MSO/90F25235.tmp]
>
>
> OIT
> The University of Alabama
>
> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ua.edu%2F=02%7C01%7Ccae104%40PSU.EDU%7Ca452461aa5bd4ea216b308d86c6273f7%7C7cf48d453ddb4389a9c1c115526eb52e%7C0%7C0%7C637378517417360427=z5uzFQPutPTbYvC5X6nJYiyQOoXQzgIQYWUkjd53p70%3D=0>
> jemal...@ua.edu
>
> [image:
> /var/folders/h2/r448cc4j4_v70yns10brx6r0gq/T/com.microsoft.Outlook/Content.MSO/8434B70B.tmp]
>
>
>
>
> *From: *The EDUCAUSE Wireless Issues Community Group Listserv
>  
> *Date: *Friday, October 9, 2020 at 9:40 AM
> *To: *WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
>  
> *Subject: *[EXTERNAL] Re: [WIRELESS-LAN] Client roaming
>
> We’re an Aruba shop and have noticed similar behavior.  We’re having more
> incidents of intermittent connectivity issues this year than in previous
> years, and most of those clients are making questionable roaming
> decisions.  It’s been really prevalent with iOS and MacOS.  Much less on
> Windows and Android.  There’s always been problems with picking a good
> radio when those devices first connect, but, historically, once they were
> steered to a good 5GHz radio they stayed there.  They’re not staying there
> this year.  We haven’t figured out why.
>
>
>
> Chuck Enfield
>
> Manager, Wireless and Cellular
>
> Penn State IT
>
> 814.863.8715
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv
>   *On
> Behalf Of *Mallon, Jason
> *Sent:* Friday, October 09, 2020 10:30 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] Client roaming
>
>
>
> Wondering if anybody else is seeing this.  We currently have devices doing
> a lot of roaming between 5 and 2.4 radios, especially in the dorms.  I
> would not think anything of it normally, but they are moving from a -52 to
> -58 on the 5 radio to a -75 or worse on the 2.4 radio.  This doesn’t seem
> to matter what SSID they are connected to.  Band select is enabled on all
> SSIDs.  We are running Cisco 8540 WLCs on 8.10.130.  Most of the complaints
> are coming from the dorms, so I am not sure if it is happening on our other
> controllers with an older code level.
>
>
>
> Thanks,
>
> *Jason Mallon* | Network Engineer III
>
> [image:
> /var/folders/h2/r448cc4j4_v70yns10brx6r0gq/T/com.microsoft.Outlook/Content.MSO/90F25235.tmp]
>
>
> OIT
> The University of Alabama
>
> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ua.edu%2F=02%7C01%7Ccae104%40PSU.EDU%7Ca452461aa5bd4ea216b308d86c6273f7%7C7cf48d453ddb4389a9c1c115526eb52e%7C0%7C0%7C637378517417360427=z5uzFQPutPTbYvC5X6nJYiyQOoXQzgIQYWUkjd53p70%3D=0>
> jemal...@ua

Re: [WIRELESS-LAN] AP Management Network Size

[James Helzerman]

Hi.  We create a private network per building (and route that at each
building).  The subnet sizes range from /28 to /23 depending on how many
access points in each building.

-Jimmy

On Wed, Jun 17, 2020 at 11:32 PM Jesse Thomas  wrote:

> Hi Everyone,
>
> We are preparing to replace our existing Cisco WiSM2 controllers with
> 9800s. Part of this upgrade will include redesigning our AP management
> network(s)—currently, we have about 500 APs spread across 3 different
> /24's.
>
> As we move towards an in-room design in our residence halls and provide
> denser 5GHz coverage throughout campus in the coming years, we expect the
> number of APs to grow by quite a bit.
>
> I am interested in how others have sized your AP management networks? I
> have not found any concrete guidance from Cisco and various recommendations
> elsewhere range from /25 to /21. Larger ranges would of course be easier to
> manage, but at the same time we don't want to introduce issues related to
> broadcast traffic.
>
> Thanks for any input that you can provide.
>
> Regards,
>
>
> --
> Jesse Thomas
> Network & Systems Administrator
> Hamilton College
> 315-859-4211
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Meraki at large universities

[James Helzerman]

Thanks for the information.

How do you feel about the architecture change?  From my understanding from
the past, you have to trunk vlans to every AP.  There is no longer a
central connection point for better IP space management, which makes sense
if they are a cloud managed product.  Do you see this a problem or
benefit?  How do you work out your subnets per building?  Do you trunk user
vlans across the core and or data center?

Do APs continue to operate if they lose connection to the cloud?  Do you
have access to your specific cloud instance to make sure resources are
acceptable?

Thanks again for any additional information you can provide.

-Jimmy


On Mon, May 11, 2020 at 12:24 PM Kyle Ragan  wrote:

> We are currently a Cisco Catalyst shop with over 5,000 AP’s in use, plus a
> couple buildings with Aruba, but have decided that all future deployments
> will be Meraki.  Our first project is going to be with ~480 Meraki AP’s
> (mixed internal & external antennae and some hospitality APs) in our main
> library.
>
>
>
> I can’t answer many of your questions with regards to experience because
> we are not there, yet.  However, Meraki did provide us with contacts at
> some of their largest customers and we were able to speak with them.  The
> customers were candid about some issues early on (pre-Cisco), but said
> since the acquisition things have been very stable.  Also, many of the
> issues described were with regards to the Meraki switch and security
> appliances.  Very little to do with the APs themselves.
>
>
>
> We decided to go with Meraki due to the value proposition of everything
> that is included in the single AP license.  To license a similar catalyst
> AP the costs were outrageous, plus all the associated appliances required
> to make use of those metrics.  Another big factor was the commitment from
> Meraki to always support their APs regardless of age and never be “forced”
> into upgrading due to EOL/EOS.  We are currently dealing with that on
> campus with both APs and controllers.  We really wanted to get out of that
> game.
>
>
>
> Other than Cisco catalyst we also considered Mist.  What concerned us with
> Mist was the lack of experience with large deployment and high density
> environments.  Also, at the time they did not have a hospitality AP which
> we use in dorms, offices, and some other creative areas.  We would have
> pretty quickly become their largest customer and that’s not something that
> I was willing to do.
>
>
>
> Hope this helps at least somewhat.
>
>
>
>
>
> *Kyle Ragan*
> Associate Director, Network Engineering and Operations
>
> kyle.ra...@colorado.edu
>
> 303.735.4008
>
>
>
> Office of Information Technology
>
> University of Colorado Boulder
> 3645 Marine Street, Rm 212H
> Boulder, CO 80309
>
>
>
> [image: cid:image001.png@01CBCC3D.675B9E40]
>
>
>
>
>
>
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *James Helzerman
> *Sent:* Monday, May 11, 2020 7:58 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] Meraki at large universities
>
>
>
> Hi.  Is anyone looking at or currently using Meraki in a large
> university?  I am curious as to how far their product has come after a few
> years from the Cisco purchase.  For sizing purposes I am looking at
> deployments of 500 or more Meraki APs with 8+ APs in high density
> auditoriums and/or seat 400-600 students.   In particular I am looking for
> information on:
>
>- How many APs total do you have on your campus?
>- What is the peak number of concurrent connections you have seen on
>the system?
>- What is the largest high density area you have covered?  How many
>APs, special settings, models of AP, etc.
>- What made you choose Meraki over different vendors?
>- Do you have multiple vendors on your campus?  If so which ones?
>- If you had a controller based infrastructure before, what changes
>did you have to make to your architecture?  How much time did it take to do
>this, what issues did you run into?
>- What success stories can you share?
>- What issues do you see or have had with the product?
>- How customizable are the settings compared to Cisco or Aruba?
>- What do you like or dont like about the products and/or architecture?
>
> Answers dont need to be long or in depth, I am just gauging adoption at
> larger universities.  If you prefer, feel free to direct message me.
>
>
>
> Thanks for any input you can provide!
>
>
>
> -Jimmy
>
>
>
> --
>
> James Helzerman
> Wireless Network Engineer
> University of

Meraki at large universities

[James Helzerman]

Hi.  Is anyone looking at or currently using Meraki in a large university?
I am curious as to how far their product has come after a few years from
the Cisco purchase.  For sizing purposes I am looking at deployments of 500
or more Meraki APs with 8+ APs in high density auditoriums and/or seat
400-600 students.   In particular I am looking for information on:

   - How many APs total do you have on your campus?
   - What is the peak number of concurrent connections you have seen on the
   system?
   - What is the largest high density area you have covered?  How many APs,
   special settings, models of AP, etc.
   - What made you choose Meraki over different vendors?
   - Do you have multiple vendors on your campus?  If so which ones?
   - If you had a controller based infrastructure before, what changes did
   you have to make to your architecture?  How much time did it take to do
   this, what issues did you run into?
   - What success stories can you share?
   - What issues do you see or have had with the product?
   - How customizable are the settings compared to Cisco or Aruba?
   - What do you like or dont like about the products and/or architecture?

Answers dont need to be long or in depth, I am just gauging adoption at
larger universities.  If you prefer, feel free to direct message me.

Thanks for any input you can provide!

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] Are You Ready for WiFi6E

[James Helzerman]

I like the idea of a 6ghz radio and all that sweet sweet frequency it opens
up but I'm torn between that and seeing a cbrs radio in the next generation
of access point (in the next year).  I can make what I have work right now
but the DAS cellular world with a vendor neutral system plus the potential
for our own e-sim lte is something we have been longing for.  Of course
that has many hurdles as well..

Jimmy

On Sat, Apr 25, 2020, 12:55 AM Rios, Hector J 
wrote:

> Now that the FCC has approved the 6GHz band, I wonder what others are
> doing in terms of planning. There is a lot to think about and unlike prior
> announcements, this one really is a game changer. Here are some thoughts:
>
>
>
> *Vendors should be rushing to make APs and make them available possibly
> this year.
>
> *The assumption is that the new radios will be tri radios. I’m sure
> vendors will get creative.
>
> *More radios chains and more features (BLE, USB, Zigbee) mean more power
> needs.
>
> *Faster more efficient technology means faster speeds required: 2.5G/5G.
>
> *Will your existing infrastructure be capable to handle the new
> technology? Today, most likely not.
>
> *If in the middle of a lifecycle, do you continue or do you wait?
>
>
>
> For those that are super excited, here are some last things to think
> about:
>
>
>
> Higher modulations require higher levels of SNR. Higher frequencies have
> shorter wavelengths and more trouble getting through objects. Bonding
> channels raises your noise floor and also requires higher receiver
> sensitivity. There are a ton of other things to consider. What say you?
>
>
>
> Regards,
>
>
>
> Hector Rios
>
> The University of Texas at Austin
>
>
>
>
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>

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Re: [WIRELESS-LAN] Deploying Cisco 9120's with existing APs

[James Helzerman]

What code / controllers will you be using?  We looked at this as an option
but with the 8540 and 8.9? code we found that most of the 802.11ax
functions wont work.  If you are considering this you may want to reach out
to your SE for specifics of what works and what doesnt.

I've never liked the idea of mixing models of aps in areas but have lucked
out and not had to do it so not sure of all the cons.  One thing I would be
aware of is devices that hold on to newer protocol versus better
signal/performance.

Jimmy

On Thu, Dec 12, 2019, 8:16 AM Becker, Jason  wrote:

> Looking to deploy some of the new 9120’s and was wondering if anyone has
> deployed these with existing access points(3702’s, 3802’s, and 1815W’s)?
> My biggest concern is having to move to new code, but I know we all need to
> upgrade at some point.  Any experience good or bad is appreciated.
>
>
>
>
>
> --
>
> Thanks,
>
> *Jason Becker*
>
> *Network Engineer 3*
>
> 4480 Clayton Ave, St. Louis, MO 63110
>
> Mail stop 8218-45-1200
>
> (: 314.935.5006 | Ë: 618.363.2900 |  *:*jbec...@wustl.edu
> *
>
>
>
>
> --
>
> The materials in this message are private and may contain Protected
> Healthcare Information or other information of a sensitive nature. If you
> are not the intended recipient, be advised that any unauthorized use,
> disclosure, copying or the taking of any action in reliance on the contents
> of this information is strictly prohibited. If you have received this email
> in error, please immediately notify the sender via telephone or return mail.
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>

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Re: [WIRELESS-LAN] WLC interface groups?

[James Helzerman]

Hi.  On our main SSID we use Interface Groups so we can return a interface
variable back via RADIUS that can be the same in each of our data nodes
that has controllers.  This way VLAN numbers dont need to be same and in
the case you mentioned if we ever need to add IP space for a quick short
term its easy to add to the group.  We rely on the WLC to control the
broadcasts and dont see any issues from it.  We dont do DHCP proxy on the
controllers.  For our main SSID we currently have two /18 running at each
of our three data nodes (different routers).  The biggest thing we have had
to watch out and plan for was the routers resources in terms of ARP cache
and timeout values.

We use Interface Groups on almost all our SSIDs by design.

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541


On Wed, Aug 28, 2019 at 3:56 PM Glinsky, Eric  wrote:

> This question is for large universities with WLCs that tunnel traffic
> through a controller. Do you use a single interface (VLAN) for, say, 30k
> clients, or do you use two or more interfaces in an interface group, and
> why? Do you use DHCP proxy? Is there any documentation or
> generally-accepted rules of thumb on this?
>
>
>
> Historically, on all three Cisco 8540 pairs, we had a core interface and
> an interface for res halls, and depending on the AP’s location (6k APs) our
> branded SSID would map clients to one interface or the other.
>
>
>
> All our wireless clients have public IPs, and we’ve faced issues running
> out. Throughout the day, we’d see the majority of clients move from the res
> hall network to the core network, and vice versa at night. At one point, we
> merged both the interfaces in an interface group to utilize all IPs at all
> times. However, the way it’s currently set up, there are more IPs available
> in the core interface than in the res hall interface.
>
>
>
> We are considering these options on how to move forward with or without
> the interface group:
>
>
>
> 1.  Consolidating down to one interface. More efficient use of IP
> space, clients wouldn’t change IPs as often. Could probably increase lease
> time to 1 hour, but what about broadcast and ARP traffic for all 30k
> addresses in the VLAN at the router - understanding that client device
> broadcast traffic doesn’t leave the controller except DHCP (we do not use
> DHCP proxy in the controllers).
>
> 2.  Staying with the group of two interfaces and balancing the IP
> space between them. Avoids wasted IPs, depending how intelligent the 8540s
> are at distributing clients between all interfaces in the group.
>
> 3.  Splitting out to more interfaces. We’d cut down on broadcast
> traffic but we’d be liable to have one client taking up three or more
> addresses between all the interfaces for up to the 30-minute lease time we
> have, and a client would change IPs more throughout the day as it
> re-associates and gets put in a different interface.
>
>
>
> Interestingly, a consultant we’re working with hasn’t seen a single
> customer besides us use interface groups.
>
>
>
> Eric Glinsky
> Network Technician
>
> University of Connecticut
> ITS – Network Operations
>
> Temporary Administration Building
> 25 Gampel Service Drive | Storrs, CT 06269-1138
> (860) 486-9199
>
> e...@uconn.edu
>
>
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
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Re: [WIRELESS-LAN] eduroam ssid on RTS

[James Helzerman]

We have been using a Cisco 829 with the PoE module and a Cisco 2702i on one
of our campus buses with good success for a 4 months now.  There is not a
huge bandwidth usage as most people seem to be on the bus less than 5
minutes but its there if they want to use it.  We disabled the 829 AP
because it doesnt have all the abilities a 2700 has such as 802.11ac.  In
addition we are doing some research based on the data collected from our
controllers and it needs to be a regular AP for it to work with what we
have built so far.

We have the Cisco 829 create a vpn tunnel to our vpn appliance.  The CAPWAP
request from the AP is what signals the tunnel to be created otherwise the
829 wont create the tunnel.  Basically it needs traffic to originate on the
router to some place outside for it to setup the tunnel.  Once up its good
to go.  Our buses are completely powered down each night.

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541


On Thu, Aug 16, 2018 at 10:08 AM, Watson,Nancy A  wrote:

> We have eduroam on our Cisco Campus Controllers working well.  I need to
> transition from campus to a bus and have that be a good experience over
> 4G.  I am looking for someone that has done eduroam on buses and how they
> approached that.
>
>
> I am testing mobile routers on the bus, included in the test are pepwave,
> cradlepoint and cisco 829.  I am using a Cisco AP with the non-Cisco vendor
> to build a capwap tunnel back to campus over 4G.  On the Cisco 829 I am
> using an embedded ap with capwap tunnel.  I also have a dmvpn 829 setup
> with embedded ap.
>
>
> There may be another solution that I am missing.
>
>
> Thank you for your response.
>
> Nancy
>
>
>
> --
>  Nancy Watson
>  Engineer, Network Services - UFIT
>
>  nwat...@ufl.edu, (352) 273-1057
> --
> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Yahya M. Jaber <
> yahya.ja...@kaust.edu.sa>
> *Sent:* Thursday, August 16, 2018 9:24 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] eduroam ssid on RTS
>
>
> Hi Nancy,
>
>
>
> To be exact, what kind of info do you want? How to setup eduroam? How to
> setup wifi on buses?
>
>
>
> *Yahya Jaber*.
>
> Sr. Wireless Engineer
>
> IT Network & Communications – Engineering
>
> Building 14, Level 3, Rm 308-WS07
>
> KAUST 23955-6900 Thuwal, KSA
>
>
>
> Email yahya.ja...@kaust.edu.sa
>
> Office +966 (0) 12 8081237
>
> Mobile +966 (0) 558697555
>
> On Call Rotation Mobile: +966 54 470 1177
>
>
>
> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Watson,Nancy A
> *Sent:* Thursday, August 16, 2018 15:10
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] eduroam ssid on RTS
>
>
>
> ​I am involved in a joint project with RTS to run eduroam on  the city
> buses that pass through our campus to service the students.  We are
> currently a Cisco Shop and I was curious if anyone has done anything like
> this with Cisco or any other vendor.
>
>
>
> Thanks,
>
> Nancy
> --
>
>  Nancy Watson
>  Engineer, Network Services - UFIT
>
>  nwat...@ufl.edu, (352) 273-1057
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.educause.edu_discuss=DwMGaQ=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM=5m0TS3W2T7dsnU68pTm1ng=jsIXHZAqT07OKlwVNfRME3JAZL60kxHGnBrA-JfBRZI=HrUfDZoKjOR6f7-khpUcWvNO0RdvCNpZJd0PQfp_sbE=>.
>
>
> --
> This message and its contents including attachments are intended solely
> for the original recipient. If you are not the intended recipient or have
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> ** Participation and subscription information for this EDUCAUSE
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> discuss
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.educause.edu_discuss=DwMGaQ=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM=5m0TS3W2T7dsnU68pTm1ng=jsIXHZAqT07OKlwVNfRME3JAZL60kxHGnBrA-JfBRZI=HrUfDZoKjOR6f7-khpUcWvNO0RdvCNpZJd0PQfp_sbE=>.
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> ** Participation and subscription information for this EDUCAUSE
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>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

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Re: [WIRELESS-LAN] wireless bridge for eduroam?

[James Helzerman]

+1 for silex

James Helzerman
University of Michigan



On Fri, Jun 29, 2018, 3:34 PM Joseph Bernard  wrote:

> I actually have 2 of those sitting around from an old project.  I didn’t
> even think about trying them.  Thanks!
>
> ~Joseph B.
>
>
> On 6/29/18, 10:18 AM, "The EDUCAUSE Wireless Issues Constituent Group
> Listserv on behalf of Cole, Kade"  behalf of kc...@siue.edu> wrote:
>
> We have had success with the Ubiquiti NanoStation loco M5 connecting
> to eduroam. Make sure to use the latest firmware.
>
> Kade P. Cole - kc...@siue.edu - (618) 650-3377
> Southern Illinois University Edwardsville - ITS
> Network and Infrastructure - Network Engineer IV
>
> > On Jun 29, 2018, at 9:12 AM, Joseph Bernard  wrote:
> >
> > I haven’t looked in a few years, but is there a wireless ethernet
> bridge that support 802.1x/PEAP for something like eduroam?  There are
> times where we really don’t want people using wireless but installing cable
> takes time, so a temporary option would be nice.  This would NOT be a
> temporary become permanent thing, so it can be as ugly as possible.
> >
> > Thanks,
> > Joseph Bernard
> >
>
>
>
> **
> Participation and subscription information for this EDUCAUSE Constituent
> Group discussion list can be found at http://www.educause.edu/discuss.
>
>

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Re: [WIRELESS-LAN] Cisco WLC / Home router

[James Helzerman]

Have you looked at the oeap1810w or 1815?  I have used the oeap1810 and can
place one ethernet port into a remote lan that is tunneled back the
controller.  You can also allow up to 4 controller ssids on the device.  In
addition to this the home user can have a seperate ssid combined with he
remaining ethernet ports in the local NAT of the router.  This allows
multicast for games etc to work without needing MDNS or multicast on the
controller side.  The down side is it works for only one AP and all
multicast stuff needs to be on the user network.

We use this method in the classroom to isolate multicast for apple TV _
bonjour and use channel 165 only so we dont compete with the main
wireless.  Professors connect to the room ssid via PSK and they get access
to apple TV for mirroring.  The scaling of this is not great but we dont
have more than 20 of these so far and for us it's better than managing the
mdns or turning on multicast.

I've used the oeap1810w at home as well with a VOIP phone. I used the
ethernet port to tunnel back to the campus controller.

Hope this helps,

Jimmy
University of Michigan


On Fri, May 4, 2018, 10:26 AM Chris Toth  wrote:

> We have a cisco 2504 WLC with 8.2.161 code (can change) going into a
> special situation were need to provide several SSIDs with one SSID that
> acts and operates just like a home router. I am trying to find information
> on settings to change and profiles to create to recreate the feel of a home
> router.  My two areas of concern are mDNS and gaming.
>
>
>
> For mDNS we currently have to define individual services to permit.  This
> SSID has to be open to any device / service that they want to connect:
> Apple product, Chromecast, speakers, cyborg guinea pigs, whatever… and I’m
> not sure how to provide that.  As for gaming I know devices like the
> Nintendo Switch use PtP hosting mechanisms to establish some multiplayer
> games.  We opted to dedicate 1-1 public IPs to resolve those issues on
> campus.  At this location there will only be one IP to PAT, but I will
> still need to ensure devices like the Switch still work.
>
>
>
> I would appreciate any information or documentation that anyone can
> provide to point me towards this goal.
>
>
>
> Thank you,
>
>
>
> Chris Toth
>
> Senior Network Technician
>
> Bowling Green State University
>
> (419) 372-8462
>
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/discuss.
>
>

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Portable Power for Mesh APs

[James Helzerman]

Around 6 hours.

-Jimmy

On Sun, Oct 8, 2017 at 12:52 PM, Chris Adams (IT) <chris.ad...@ung.edu>
wrote:

> It looks like this is for temporary use, but what kind of runtimes are you
> getting from this unit with a WAP attached?
>
>
>
>
>
> Thanks,
>
>
>
> Chris Adams
>
>
>
> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *James Helzerman
> *Sent:* Saturday, October 7, 2017 10:28 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Portable Power for Mesh APs
>
>
>
> Either or.  Looking to see if anyone else has done this type of thing.  I
> was trying to find alternatives that are either cheaper or have a
> multi-purpose ability so its not a one time use.
>
>
>
> We use this for site surveys but is about $250 each and is only useful for
> PoE.  It works very well and is nice to have the ethernet port pass
> through, unfortunately surveys or temp installations are its only useful
> purpose for me.  For the temp event I would need 10-15 units.
>
>
>
> https://www.bhphotovideo.com/c/product/1220949-REG/
> veracity_vad_psp_pointsource_plus_battery_powered.html
>
>
>
> -Jimmy
>
>
>
> On Sat, Oct 7, 2017 at 9:59 PM, GT Hill <g...@gthill.com> wrote:
>
> Are you looking for a complete solution or a less expensive DIY?
>
>
>
> GT
>
>
>
> *From: *The EDUCAUSE Wireless Issues Constituent Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of James Helzerman <
> jarh...@umich.edu>
> *Reply-To: *The EDUCAUSE Wireless Issues Constituent Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> *Date: *Saturday, October 7, 2017 at 8:20 PM
> *To: *<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> *Subject: *[WIRELESS-LAN] Portable Power for Mesh APs
>
>
>
> Hi.  Is anyone using portable power for temporary Mesh APs?  If so what
> model device are you using?  Ie portable jump starter with AC outlets,
> portable battery pack with 802.3at power, etc.
>
>
>
> We have an event coming up and are looking at different ways to provide
> power to access points for 6 hours that will connect via Mesh.  Some
> locations will have multiple access points so a single power source that
> has multiple outlets / connections would be ideal.
>
>
>
> Thanks,
>
>
>
> -Jimmy
>
>
>
> --
>
> James Helzerman
> Wireless Network Engineer
> University of Michigan - ITS
>
> Phone: 734-615-9541
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>
>
>
>
> --
>
> James Helzerman
> Wireless Network Engineer
> University of Michigan - ITS
>
> Phone: 734-615-9541
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Portable Power for Mesh APs

[James Helzerman]

Either or.  Looking to see if anyone else has done this type of thing.  I
was trying to find alternatives that are either cheaper or have a
multi-purpose ability so its not a one time use.

We use this for site surveys but is about $250 each and is only useful for
PoE.  It works very well and is nice to have the ethernet port pass
through, unfortunately surveys or temp installations are its only useful
purpose for me.  For the temp event I would need 10-15 units.

https://www.bhphotovideo.com/c/product/1220949-REG/veracity_vad_psp_pointsource_plus_battery_powered.html

-Jimmy

On Sat, Oct 7, 2017 at 9:59 PM, GT Hill <g...@gthill.com> wrote:

> Are you looking for a complete solution or a less expensive DIY?
>
> GT
>
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of James Helzerman <
> jarh...@umich.edu>
> Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> Date: Saturday, October 7, 2017 at 8:20 PM
> To: <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> Subject: [WIRELESS-LAN] Portable Power for Mesh APs
>
> Hi.  Is anyone using portable power for temporary Mesh APs?  If so what
> model device are you using?  Ie portable jump starter with AC outlets,
> portable battery pack with 802.3at power, etc.
>
> We have an event coming up and are looking at different ways to provide
> power to access points for 6 hours that will connect via Mesh.  Some
> locations will have multiple access points so a single power source that
> has multiple outlets / connections would be ideal.
>
> Thanks,
>
> -Jimmy
>
> --
> James Helzerman
> Wireless Network Engineer
> University of Michigan - ITS
> Phone: 734-615-9541
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Portable Power for Mesh APs

[James Helzerman]

Hi.  Is anyone using portable power for temporary Mesh APs?  If so what
model device are you using?  Ie portable jump starter with AC outlets,
portable battery pack with 802.3at power, etc.

We have an event coming up and are looking at different ways to provide
power to access points for 6 hours that will connect via Mesh.  Some
locations will have multiple access points so a single power source that
has multiple outlets / connections would be ideal.

Thanks,

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] 8540 Controller load related issue?

[James Helzerman]

Hi.  Did you have out of band access to the controller via the service port
or a terminal server?  Curious if it was networking related or if the
controller got confused.

We run 8 pairs of 8540 controllers running 8.2.160 and a few 8.2.150 that
are in the progress of being upgraded.  Out heaviest loaded controller is
about 3000 to 3500 2702 APs and maybe a few 1810w.  The client load has
been up around 10k - 13k peak with 90% being 802.1x.  so far we have not
seen this issue but have had two controller crashes with crash logs.  In
both cases HA worked as expected with little to no impact to the users.

Jimmy
University of Michigan




On Sep 22, 2017 11:32 PM, "Dennis Xu"  wrote:

Thank you Jess for your information, but not quite the same as our
situation. In our case, not just the APs are disassociated, the controller
can't be pinged from anywhere, nor the controller can ping it's default
gateway. The controller was totally lost from the network. Its uplink port
channel stayed up. After reboot, it regained network connectivity.

Dennis

Sent from Samsung Mobile


 Original message 
From: Jess Walczak
Date:09-22-2017 9:22 PM (GMT-05:00)
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] 8540 Controller load related issue?

Dennis,

We are running an HA pair of 8510's with 8.0, so not quite the same, but
this week we had the same thing you described happen, where more than half
the APs suddenly disassociated but then came right back up (after a little
back and forth since they found an older controller running newer code on
an ordinally lower IP).  We traced the event to an influx of traffic from
China to whatever devices happen to be on our gaming vlan (which is several
hundred), which we setup such that unlike all other wireless on the
campuses, it shares an IP space with a wired vlan, and those IPs are some
of our publicly addressable class B, so that their games won't squawk about
being NAT'd.

We are looking into the firewall logs to make sure there isn't something
that we might need to be blocking in the future, but my working theory is
the sudden massive wave of retransmits caused the APs to disassociate and
reset.

Thanks!--JW

Jess Walczak
Senior Network Analyst
Information Technology Services
jwwalc...@stthomas.edu
University of St. Thomas | stthomas.edu



On Sep 22, 2017 3:17 PM, "Dennis Xu"  wrote:

> This summer we added more APs to 8540 controller. Now our 8540 controller
> has 2350 APs(mainly 1810W and 2802 APs) and 13K (increased from 6k in
> March/April) concurrent 802.1X users at peak. We also upgraded the
> controllers from 8.2.150.0 to 8.2.160.0 during summer. Now the controller
> has run into an issue twice that it suddenly lost all communications from
> the network. It cannot be connected from anywhere but it did not crash(was
> up and running). All APs disassociated from it and re-associated to the
> secondary 8540. I suspect this issue is somehow load related although
> Cisco's advertised support is 64k clients. We would like to know if anyone
> else has more concurrent 802.1X users than us on 8540 and do not have this
> issue? And what code do you use?
>
>
> Thanks.
>
>
> *Dennis Xu* | Analyst III, Network Infrastructure
> Computing and Communications Services (CCS) | University of Guelph
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/discuss.
>
> ** Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at http://www.educause.edu/
discuss.

** Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at http://www.educause.edu/
discuss.

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Cisco Code Version

[James Helzerman]

With your beta controller how many access points and concurrent device
connections are you able to test?

We are setting up a similar scenario, not so much for beta testing as for a
stepping stone to upgrades of our campus controllers.  The controller pair
are 8540s and should have 250-300 APs with around 1000+ devices.  The user
base is our IT folks in 3 locations so we hope to get good feedback.

I agree that edu is a unique beast for wi-fi but in the end it's seems some
core functions are what is failing us such as code upgrades and APs stuck
in CAPWAP flapping state that require the switch ports to be bounced.

Jimmy

On Aug 2, 2017 3:00 AM, "Jeffrey D. Sessler" <j...@scrippscollege.edu>
wrote:

> I participate in the betas and even run a beta controller in production.
> This is complex stuff, and especially in EDU, we see things that no
> enterprise customer will even encounter – or test bed can simulate. For the
> most part, I’ve had no show-stopper issues going back to the post 5.2 days.
> That said, I keep a very open and direct dialog with the BU, and with
> something like the x800 series WAPs, my team did a lot of testing of the
> product to help get all the little bugs worked out.
>
>
>
> Jeff
>
>
>
> *From: *"wireless-lan@listserv.educause.edu" <WIRELESS-LAN@LISTSERV.
> EDUCAUSE.EDU> on behalf of James Helzerman <jarh...@umich.edu>
> *Reply-To: *"wireless-lan@listserv.educause.edu" <WIRELESS-LAN@LISTSERV.
> EDUCAUSE.EDU>
> *Date: *Tuesday, August 1, 2017 at 3:39 PM
> *To: *"wireless-lan@listserv.educause.edu" <WIRELESS-LAN@LISTSERV.
> EDUCAUSE.EDU>
> *Subject: *Re: [WIRELESS-LAN] Cisco Code Version
>
>
>
> I feel like we might be used as QA..anyone else?
>
>
>
> On Aug 1, 2017 6:32 PM, "Mccormick, Kevin" <ke-mccorm...@wiu.edu> wrote:
>
> They just released 8.2.160.0. They have not vetted the release as being
> stable. They will recommend after enough downloads and not a lot of bug
> issues.
>
>
> Kevin McCormick
> <https://www.youracclaim.com/badges/3aa51624-4156-498d-bf6f-4a61790d54cf/public_url>
>
> Network Administrator
>
> University Technology - Western Illinois University
>
> ke-mccorm...@wiu.edu | (309) 298-1335 <3092981335> | Morgan Hall 106b
>
> Connect with uTech: Website <http://www.wiu.edu/utech> | Facebook
> <https://www.facebook.com/uTechWIU> | Twitter
> <https://twitter.com/WIU_uTech>
>
>
>
> On Tue, Aug 1, 2017 at 4:00 PM, Marcelo Maraboli <marcelo.marab...@uc.cl>
> wrote:
>
> Hello all
>
> I wonder why CISCO keeps 8.2.151 as "suggested" and not 8.2.160 ??
>
> just a precaution ?
>
> My Cisco partner is telling me to stay in 8.2.151 even if there is 8.5.x
> code our there.
>
>
> what's your opinion ?
>
>
> regards,
>
> On 7/31/17 4:11 PM, Paul Thompson wrote:
>
>
> .160 fixes some real world SIP and 802.11r Fast Transition bugs, if you're
> using either of those features.  I was told by a coworker that the
> engineering prereleases of it had helped with some real life Apple
> connectivity tics, but have less detail on specifics of that.
>
> On Mon, 31 Jul 2017, Lee H Badman wrote:
>
>
>
> 151 here as well- is a bit frustrating that 160 just came out as we’re in
> our “freeze” period now for making changes, pre-semester. Other than the
> typical laundry list of cryptic bugs corrected, does anyone know if 160
> addresses any real-world, commonly impactful 3800-related bugs?
>
>
>
> Lee Badman | Network Architect
>
> Certified Wireless Network Expert (#200) Information Technology Services
> 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244
>
> t 315.443.3003 <(315)%20443-3003> f 315.443.4325 <(315)%20443-4325> e
> lhbad...@syr.edu w its.syr.edu
>
> SYRACUSE UNIVERSITY syr.edu
>
>
>
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [
> mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] On Behalf Of James Helzerman Sent:
> Monday, July 31, 2017 1:57 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: [WIRELESS-LAN] Cisco Code Version
>
>
>
> Hi.  For those with Cisco access points what code version are planning on
> running for start of fall semester?
>
>
>
> At this point we looking at 8.2.151 possibly 8.2.160 but havent tested
> yet.
>
>
>
> Thanks
>
>
>
> -Jimmy
>
>
>
> --
>
> James Helzerman Wireless Network Engineer University of Michigan - ITS
>
> Phone: 734-615-9541 <(734)%20615-9541>
>
> ** Participation and subscription information for this EDUCAUSE
> Constit

Re: [WIRELESS-LAN] Cisco Code Version

[James Helzerman]

I feel like we might be used as QA..anyone else?

On Aug 1, 2017 6:32 PM, "Mccormick, Kevin" <ke-mccorm...@wiu.edu> wrote:

They just released 8.2.160.0. They have not vetted the release as being
stable. They will recommend after enough downloads and not a lot of bug
issues.

Kevin McCormick
<https://www.youracclaim.com/badges/3aa51624-4156-498d-bf6f-4a61790d54cf/public_url>
Network Administrator
University Technology - Western Illinois University
ke-mccorm...@wiu.edu | (309) 298-1335 <3092981335> | Morgan Hall 106b
Connect with uTech: Website <http://www.wiu.edu/utech> | Facebook
<https://www.facebook.com/uTechWIU> | Twitter
<https://twitter.com/WIU_uTech>


On Tue, Aug 1, 2017 at 4:00 PM, Marcelo Maraboli <marcelo.marab...@uc.cl>
wrote:

> Hello all
>
> I wonder why CISCO keeps 8.2.151 as "suggested" and not 8.2.160 ??
>
> just a precaution ?
>
> My Cisco partner is telling me to stay in 8.2.151 even if there is 8.5.x
> code our there.
>
>
> what's your opinion ?
>
>
> regards,
>
>
> On 7/31/17 4:11 PM, Paul Thompson wrote:
>
>
> .160 fixes some real world SIP and 802.11r Fast Transition bugs, if you're
> using either of those features.  I was told by a coworker that the
> engineering prereleases of it had helped with some real life Apple
> connectivity tics, but have less detail on specifics of that.
>
> On Mon, 31 Jul 2017, Lee H Badman wrote:
>
>
> 151 here as well- is a bit frustrating that 160 just came out as we’re in
> our “freeze” period now for making changes, pre-semester. Other than the
> typical laundry list of cryptic bugs corrected, does anyone know if 160
> addresses any real-world, commonly impactful 3800-related bugs?
>
>
>
> Lee Badman | Network Architect
>
> Certified Wireless Network Expert (#200) Information Technology Services
> 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244
>
> t 315.443.3003 <(315)%20443-3003> f 315.443.4325 <(315)%20443-4325> e
> lhbad...@syr.edu w its.syr.edu
>
> SYRACUSE UNIVERSITY syr.edu
>
>
>
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [
> mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] On Behalf Of James Helzerman Sent:
> Monday, July 31, 2017 1:57 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: [WIRELESS-LAN] Cisco Code Version
>
>
>
> Hi.  For those with Cisco access points what code version are planning on
> running for start of fall semester?
>
>
>
> At this point we looking at 8.2.151 possibly 8.2.160 but havent tested
> yet.
>
>
>
> Thanks
>
>
>
> -Jimmy
>
>
>
> --
>
> James Helzerman Wireless Network Engineer University of Michigan - ITS
>
> Phone: 734-615-9541 <(734)%20615-9541>
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/discuss.
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/discuss.
>
>
>
>
>
> **
> Participation and subscription information for this EDUCAUSE Constituent
> Group discussion list can be found at http://www.educause.edu/discuss.
>
>
> --
> *Marcelo Maraboli Rosselott*
> Subdirector de Redes y Seguridad
> Dirección de Informática
> Pontificia Universidad Católica de Chile
> http://informatica.uc.cl/
> --
> Campus San Joaquín, Av. Vicuña Mackenna 4860, Macul
> Santiago, Chile
> Teléfono: (56) 22354 1341
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/discuss.
>
>
** Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at http://www.educause.edu/
discuss.

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Cisco Code Version

[James Helzerman]

Hi.  For those with Cisco access points what code version are planning on
running for start of fall semester?

At this point we looking at 8.2.151 possibly 8.2.160 but havent tested yet.

Thanks

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Solar Power AP Setup

[James Helzerman]

Hi.  Thanks unfortunately this is a solar research project and solar is a
required component.  Additionally the UM owned lighting has a single photo
sensor on a nearby building that provides power to the lights.  Even with
intermittent power charging the batteries at night will work, the concept
we are looking at is solar based.  Call it being green :)

-Jimmy

On Wed, Jul 26, 2017 at 11:02 AM, Mike King <m...@mpking.com> wrote:

> Just another comment that solar might not be the best application.
> I see in the archives you run Cisco.
>
> Cisco has a whole line of outdoor Mesh AP's, that mount on streetlgihts,
> and tap the power from the streetlight.  You unscrew the solar eye (the
> thing that turns the light off during the day) plug in the streetlight tap,
> and then plug the solar eye back into the tap.
> Picture:
> http://www.cisco.com/c/dam/en/us/td/i/21-30/280001-
> 29/281001-282000/281939.eps/_jcr_content/renditions/281939.jpg
> Taken from page:
> http://www.cisco.com/c/en/us/td/docs/wireless/access_point/
> 1550/installation/guide/1550hig/1550_ch2.html#36695
>
> There are a few that have been up for almost 10 years now around my place.
> Google street view:
> https://www.google.com/maps/@41.989591,-70.9755743,3a,75y,
> 19.01h,99.29t/data=!3m6!1e1!3m4!1sB2yFva3dugadtFxyzEkoRg!
> 2e0!7i13312!8i6656
>
> We pay a rental fee to the power company to "rent" they're street lamp,
> and it includes power.
>
>
>
> On Wed, Jul 26, 2017 at 7:24 AM, Osborne, Bruce W (Network Operations) <
> bosbo...@liberty.edu> wrote:
>
>> We have not done bus stops but we have a couple of battery powered mobile
>> packs using Aruba RAP-155 with cellular backhaul. We aimed for 10 hour
>> battery life. In reality, the laptops people were using ran out of battery
>> before the mobile pack. These were originally designed with Aruba RAP-5WN
>> on 2.4 GHz. This is a 12 volt system
>>
>>
>>
>> We also have several highway coach buses using Aruba RAP-3 connected to
>> the router & cellular backhaul in the bus. Our main caution is to be sure
>> to pick an appropriate data plan. A bus full of athletes can burn through a
>> lot of data! This uses an inverter in the bus but I believe the RAP-3s we
>> are using are 48 volt.
>>
>>
>>
>> Both systems set up an  IPsec Tunnel across the Internet to our wireless
>> controller.
>>
>>
>>
>> *Bruce Osborne*
>>
>> *Senior Network Engineer*
>>
>> *Network Operations - Wireless*
>>
>>  *(434) 592-4229 <(434)%20592-4229>*
>>
>> *LIBERTY UNIVERSITY*
>>
>> *Training Champions for Christ since 1971*
>>
>>
>>
>> *From:* James Helzerman [mailto:jarh...@umich.edu]
>> *Sent:* Tuesday, July 25, 2017 3:33 PM
>> *Subject:* Solar Power AP Setup
>>
>>
>>
>> Has anyone used or currently have any access points powered by solar
>> panels?  I am looking at doing a few proof of concepts at some bus stops to
>> try and provide connectivity for those waiting for the bus.  I am
>> interested with the following particular questions but please add any
>> comments or suggestions you may have.
>>
>>
>>
>> Questions:
>>
>>
>>
>> What make/model solar system do you have?
>>
>>
>>
>> What APs and antennas are you using?
>>
>>
>>
>> What are the power ratings of the solar system (12v, 48v, 120v, wattage,
>> etc.)?
>>
>>
>>
>> How does the AP connect to the power such as a power injector running
>> 120v, direct connect via DC, DC-to-DC converter, etc?
>>
>>
>>
>> What is your targeted uptime?  Ie how long should the battery last in the
>> event of bad weather.
>>
>>
>>
>> Any other comments or stories to share would be most helpful.
>>
>>
>>
>>
>>
>>
>>
>> Thanks,
>>
>>
>>
>> -Jimmy
>>
>>
>>
>>
>> --
>>
>> James Helzerman
>> Wireless Network Engineer
>> University of Michigan - ITS
>>
>> Phone: 734-615-9541 <(734)%20615-9541>
>>
>> ** Participation and subscription information for this EDUCAUSE
>> Constituent Group discussion list can be found at
>> http://www.educause.edu/discuss.
>> ** Participation and subscription information for this EDUCAUSE
>> Constituent Group discussion list can be found at
>> http://www.educause.edu/discuss.
>>
>>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Solar Power AP Setup

[James Helzerman]

The backhaul would be 5Ghz Mesh with 1 Hop to the root AP.  For this proof
of concept 2.4Ghz is good for users but I would be looking to us 5GHz for
both in the future with a Cisco AP that do FRA.

-Jimmy

On Tue, Jul 25, 2017 at 3:58 PM, Paul Reimer <prei...@fsu.edu> wrote:

> We aren’t running anything on solar.
>
>
>
> I have a question though. What’s your backhaul? Are you thinking of
> bridging to the bus stops?
>
>
>
> -Paul
>
>
>
> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *James Helzerman
> *Sent:* Tuesday, July 25, 2017 3:33 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] Solar Power AP Setup
>
>
>
> Has anyone used or currently have any access points powered by solar
> panels?  I am looking at doing a few proof of concepts at some bus stops to
> try and provide connectivity for those waiting for the bus.  I am
> interested with the following particular questions but please add any
> comments or suggestions you may have.
>
>
>
> Questions:
>
>
>
> What make/model solar system do you have?
>
>
>
> What APs and antennas are you using?
>
>
>
> What are the power ratings of the solar system (12v, 48v, 120v, wattage,
> etc.)?
>
>
>
> How does the AP connect to the power such as a power injector running
> 120v, direct connect via DC, DC-to-DC converter, etc?
>
>
>
> What is your targeted uptime?  Ie how long should the battery last in the
> event of bad weather.
>
>
>
> Any other comments or stories to share would be most helpful.
>
>
>
>
>
>
>
> Thanks,
>
>
>
> -Jimmy
>
>
>
>
> --
>
> James Helzerman
> Wireless Network Engineer
> University of Michigan - ITS
>
> Phone: 734-615-9541
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Solar Power AP Setup

[James Helzerman]

Has anyone used or currently have any access points powered by solar
panels?  I am looking at doing a few proof of concepts at some bus stops to
try and provide connectivity for those waiting for the bus.  I am
interested with the following particular questions but please add any
comments or suggestions you may have.

Questions:

What make/model solar system do you have?

What APs and antennas are you using?

What are the power ratings of the solar system (12v, 48v, 120v, wattage,
etc.)?

How does the AP connect to the power such as a power injector running 120v,
direct connect via DC, DC-to-DC converter, etc?

What is your targeted uptime?  Ie how long should the battery last in the
event of bad weather.

Any other comments or stories to share would be most helpful.



Thanks,

-Jimmy


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] New buildings on campus

[James Helzerman]

We always get AutoCAD from the architects or from our construction project
managers.  The only time we have difficulty getting AutoCad drawings is
when we deal with leased spaces and the landlord may or may not have them.

-Jimmy
University of Michigan

On Fri, May 5, 2017 at 9:50 AM, Jeffrey D. Sessler <j...@scrippscollege.edu>
wrote:

> We typically get autocad files, but occasionally PDF too. If the PDF files
> were output from autocad, then in my experience, the scaling is always
> maintained and it’s trivial to get the critical dimensions back out of it
> using Acrobat Pro’s ruler tool (set to the proper scale).
>
> Jeff
>
> On 5/4/17, 6:34 PM, "The EDUCAUSE Wireless Issues Constituent Group
> Listserv on behalf of Todd Hall" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU on
> behalf of t...@msstate.edu> wrote:
>
> When we have new buildings being constructed I am provided plans in
> pdf format.  I'm told that the Architect/builders won't share the Autocad
> files.  Are any of you able to get Autocad files?  If so, who provides
> them?  Do you have to justify what they are for?  It would be a huge time
> saver for designing the wireless networks in ESS.
>
> One more thing.  I'd like to thank everybody for participating in this
> list.  It has been a fantastic resource over the years.
>
> --
> Todd Hall
> Sr. Network Analyst
> Information Technology Services
> Mississippi State University
> **
> Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> discuss.
>
>
>
> **
> Participation and subscription information for this EDUCAUSE Constituent
> Group discussion list can be found at http://www.educause.edu/discuss.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.

Re: [WIRELESS-LAN] Wireless to Wired Bridge

[James Helzerman]

Hi.  We have used this:

http://www.silexamerica.com/products/connectivity-solutions/wireless-infrastructure/ethernet-to-wi-fi-bridges/sx-br-4600wan2/

We only had it in use for a few days with an ip camera but it seemed to
work.  I was able to get out on 802.1x network and it supported 5ghz.

Jimmy

On Sep 15, 2016 10:46 AM, "Patterson, Chad"  wrote:

> We’ve been experimenting with the ubiquiti  picostation m2, but so far
> with no success. The issue we are having is with radius certificates, but
> depending on the auth method you are using it might be a viable option for
> your residence halls.
>
>
>
> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Adam Forsyth
> *Sent:* Thursday, September 15, 2016 8:49 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* [WIRELESS-LAN] Wireless to Wired Bridge
>
>
>
> Does anyone have a good wireless to wired bridge that they recommend to
> students to purchase when they have a wired only device that they wish they
> could connect in a wireless only residence hall?
>
>
>
> --
>
> *Adam Forsyth*
>
> Director of Network and Systems
>
> Luther College Information Technology Services
>
> 700 College Drive
>
> Decorah, IA 52101
>
> 563-387-1402
>
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> groups/.
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at http://www.educause.edu/
> groups/.
>
>

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] Disabling LEDs on APs

[James Helzerman]

We disable all the LEDs in residence halls on our Cisco APs.  It hasnet
caused us much of a problem troubleshooting, you have the ability flash or
turn on individual lights if needed in case you have to identify an AP.

-Jimmy
University of Michigan

On Tue, Sep 6, 2016 at 10:03 AM, Julian Y Koh <kohs...@northwestern.edu>
wrote:

> On Tue Sep 06 2016 08:57:08 CDT, Lee H Badman <lhbad...@syr.edu> wrote:
> >
> > First-world problems… Curious if others have gone down this road in
> Residence Halls. We’re not really being asked to, but are considering
> wholesale disabling LEDs on our Cisco APs in the dorms as a quality of life
> step. Has this caused anyone any pain when it comes to not being able to
> see the colors on the AP as status indication? Have you actually had
> requests to disable the LEDs? Overall experience with accommodating or
> denying the request?
> >
>
> I can't remember the exact sequence of how all the conversations went, but
> when we did a redesign to start moving the APs into the residence hall
> rooms, we turned off the lights on those units.  I think we got a couple of
> reports where residents were wondering if the APs were working, but overall
> not a big deal.
>
>
> --
> Julian Y. Koh
> Associate Director, Telecommunications and Network Services
> Northwestern Information Technology
>
> 2001 Sheridan Road #G-166
> Evanston, IL 60208
> +1-847-467-5780
> Northwestern IT Web Site: <http://www.it.northwestern.edu/>
> PGP Public Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html>
>
>
>
>
>
>
>
>
> **
> Participation and subscription information for this EDUCAUSE Constituent
> Group discussion list can be found at http://www.educause.edu/groups/.
>
>


-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Cisco interface groups

[James Helzerman]

Hi.  For those using interface groups on Cisco WLC, could you share any
experiences good or bad that you have had?  We are exploring the use of aaa
override and return the interface group name rather than vlan.

Thanks

Jimmy

James Helzerman
Wireless Network Engineer
University of Michigan

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] windows client intermittent drops of connection wlc 7.6

[James Helzerman]

 in on their wifi
 connection in the taskbar and lose connectivity. Sometimes they can get
 back on, sometimes they have to reboot. We have tried updating drivers and
 that has not fixed the problem, although in one case we forced the client
 to 2.4ghz range thru settings in the adapter and that seemed to fix the
 probem in some cases.

 The issue is very odd. It appears almost to be location or AP specific
 although reports are hard to nail down. Anecdotal reports suggest more
 difficulty with non-3702i APs (we have some 3500's and 3600's APs as well)
 The network is an EAP-TLS network with client side certs.

 As with most student wifi issues, it’s nearly impossible to get real
 debugging results, but one thing we have noticed is when the student is
 having issues, we’ve seen where the controller is showing them as
 associated and authenticated, but the client machine seems to show that it
 has an IP gateway and mask but for some reason there’s no gateway entry in
 the ARP table of the client. Release/Renew does nothing. Ping from the
 gateway does nothing. Very odd issue. DHCP is provisioned by a central
 Microsoft DHCP server (ie, not the cisco device) and we’re using 1 hour
 lease times. Some students we've seen it happen to are a result of their
 laptop going asleep.

 I personally tend to lean towards this being a client driver issue.
 Problem is, it's nearly impossible to have every student with up to date
 drivers in this BYOD type world we operate in. At the end of the day, we
 have students who need wifi access and cannot get on and blaming IT. This
 is a small subset of users, but an issue nonetheless.

 I have heard rumblings of various wlc  options/settings that may be
 causing issues and we do have the following list below. Turning one off at
 a time is an option I suppose, but hoping that someone may have some better
 recommendations here.
 - Client Band Select enabled
 - Client Load Balancing enabled
 - User Idle Timeout set to 5400 Seconds (this is under Controller/General)
 - CCKM enabled
 - Session Timeout 36000 (this is under WLAN/Advanced)
 - DHCP Address Assignment Required is checked

 Any advice/info is appreciated.

 Thanks

 Matt

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 ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
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-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
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discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] How many drops 802.11ac phase 2

[James Helzerman]

Specifically speaking about WiFi locations, we have been running two CAT5e
since 2004.  The reasoning then was the second cable to attach to the
console port in case of an autonomous AP losing its config.  Today we are
still running two CAT5e since the cost of pulling a second wire is very
minimal compared to labor to go back later.  The intent now is for future
proofing not just for WiFi but for other devices such as cameras that may
be placed nearby.  In the future we may not need dual uplinks, but an
additional access point nearby.  How many classrooms and auditoriums have
had WiFi in the past but now need additional access points for density?

There are currently manufactures that do have dual uplinks.  Aruba is one
of them with their new 802.11ac wave one AP.  In my opinion, I see vendors
going both way, dual uplinks and 10Gbps at some point.  I believe vendors
will try to find ways to differentiate themselves from the others.  One way
to do this is to offer compatibility with existing wiring or a migration
path such as dual links with one or both 10Gb capable.  Not every location
will need 10Gb either and as others have mentioned at this point we are
bottleneck engineering.  We are starting to look at CAT6a to see if it is
time to switch but for now we are still pulling CAT5e even in new
construction.

-Jimmy

-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers


On Fri, Feb 7, 2014 at 11:01 AM, Scott Allen sc...@georgetown.edu wrote:

 We may also see some other frequencies come into play in the next few
 years that could impact AP location and density.
 -Scott



 On Fri, Feb 7, 2014 at 10:21 AM, Julian Y Koh kohs...@northwestern.edu
 wrote:
  On Feb 7, 2014, at 09:13 , Jerry Bucklaew j...@buffalo.edu wrote:
 
   Well I guess we are the odd man out.  We are pulling one cat6a and
 will continue to so.
 
  Same here.  Sorry you don't get to be odd man out.  :)
 
  I just do not see the point in pulling two. First off the wired
 bandwidth is never the issue on the AP, I would bet most of my ap's run at
 100meg, gig will be fine for a very long time.
 
  That is our bet.
 
  Second, I just do not see the AP vendors going to two ports with some
 type of bonding.
 
  Well some vendors at least do support multiple wired ports already.  How
 they divide up traffic between those ports varies.
 
 
 
 
 
  --
  Julian Y. Koh
  Acting Associate Director, Telecommunications and Network Services
  Northwestern University Information Technology (NUIT)
 
  2001 Sheridan Road #G-166
  Evanston, IL 60208
  847-467-5780
  NUIT Web Site: http://www.it.northwestern.edu/
  PGP Public Key:http://bt.ittns.northwestern.edu/julian/pgppubkey.html
 
  **
  Participation and subscription information for this EDUCAUSE Constituent
 Group discussion list can be found at http://www.educause.edu/groups/.



 --

 Scott Allen
 Director, Network Services
 Georgetown University
 sc...@georgetown.edu
 mobile - 202-309-5739

 **
 Participation and subscription information for this EDUCAUSE Constituent
 Group discussion list can be found at http://www.educause.edu/groups/.




-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] What Cisco WLAN controller code are you running?

[James Helzerman]

 Group discussion list can be found at
 http://www.educause.edu/groups/.


 --


 “This message may contain confidential and/or proprietary information and
 is intended for the person/entity to whom it was originally addressed. Any
 use by others is strictly prohibited.”

 ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.

 ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.
  ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.




 --
 Alan Nord, CCNA
 Infrastructure Manager
 Information Technology Services
 Macalester College
 1600 Grand Avenue
 St. Paul, MN 55105
  ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.




-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] External Antenna Choices - Omni vs Patch

[James Helzerman]

Hi.  We use external antennas for unique deployments on campus.  We try to
stick with the integrated antennas as much as possible to save cost but we
know that this setup is not for all situations.  With the Cisco 3600 series
AP, we have deployed them using the Cisco 180 patch which is similar to the
Terrawave.  Primarily these have been used in our sport venues to cover
entrance gates for ticket scanners.  The one thing I would look out for is
how far you intend to have the directional antenna reach.  If the clients
are using low-powered omni antennas they might not be able to transmit as
far as the directional antenna and higher power that you are using on the
AP.  If you are talking about using the directional antennas for a
Point-to-Point link then this is not a problem.  Our goal with external
antennas is similar to yours, we want to keep the outside signal for
outside devices and the inside signal for inside devices.  In the ticket
gate scenario that we use directional antennas at, we have to utilize
802.11b rates to get the distance / performance from the end devices
needed.  Our mounting assets for access points are not close enough to the
gates and the end devices dont have a high power setting to enable 802.11g
or 802.11a.

-Jimmy

-- 
James Helzerman
University of Michigan


On Tue, Jul 23, 2013 at 8:05 PM, Jason Cook jason.c...@adelaide.edu.auwrote:

 Hi All,

 ** **

 Just wondering what people have done with external antenna’s?

 ** **

 The question I have is primarily around whether or not to use 360 degree
 Omni or 180 degree patch antenna’s on the outside of a building. We have
 been recommended to use 360’s in most cases, even though these put coverage
 back into building where we deploy internal coverage. It seems to me that
 this could cause issues with RF interference, and end up with turning the
 power down on external antenna potentially reducing coverage quality
 outside.  While a 180 will  direct the coverage where intended, leaving
 internals to do their intended job and externals to do theirs. 

 ** **

 We are using Cisco 3602e’s with TerraWave. 

 ** **

 Regards


 Jason

 ** **

 --

 Jason Cook

 Technology Services

 The University of Adelaide, AUSTRALIA 5005

 Ph: +61 8 8313 4800

 e-mail: jason.c...@adelaide.edu.au

 ** **

 CRICOS Provider Number 00123M

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 ** **
 ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.




-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] External Antenna Choices - Omni vs Patch

[James Helzerman]

Currently our longest distance is about 240 feet.  In the past we have had
one that was about 280 feet.  Our current ticket scanners are from
Paciolanand the new
Janams have 30mW radios.  The older scanners we had were Symbol and they
had a 50mW or 100mW radio.  The Symbols definitely got more range.  For the
specific application that we use I have also locked the data rates down to
1Mbps  2Mbps only.  I was seeing a lot of data-rate shifting when all the
802.11b rates where available and the crowds would move around the ticket
takers.  The ticketing application would start to buffer the scanned
tickets instead of sending them to the server for validation.  This is not
ideal for everyday usage but this was an application and device specific
deployment.

-Jimmy


On Wed, Jul 24, 2013 at 11:12 PM, Jason Cook jason.c...@adelaide.edu.auwrote:

  Hi Jimmy,

 ** **

 Thanks for the information, certainly quite helpful. 

 ** **

 The majority of our area’s are 40-100m(distance in directions not space)
 of outdoor lawn space(square, rectangle, circle triangle other), it’s been
 omni for external mounts and patch for heritage buildings with internal
 mounts. But we are more and more thinking patch for all unless omni has an
 advantage rather than the other way around. We have some other cases coming
 up like Orchid’s, shearing sheds and farmland but so far nothing planned
 for more than 180m. It’s all for general use and teaching. 

 ** **

 Might start looking at the Cisco patch, they didn’t exist when we first
 looked into it but that was a while ago now. 

 ** **

 Out of interest what distance are you get with the 802.11b installs? 

 ** **

 Regards


 Jason

 ** **

 --

 Jason Cook

 Technology Services

 The University of Adelaide, AUSTRALIA 5005

 Ph: +61 8 8313 4800

 ** **

 *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
 WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *James Helzerman
 *Sent:* Wednesday, 24 July 2013 11:29 PM
 *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
 *Subject:* Re: [WIRELESS-LAN] External Antenna Choices - Omni vs Patch

 ** **

 Hi.  We use external antennas for unique deployments on campus.  We try to
 stick with the integrated antennas as much as possible to save cost but we
 know that this setup is not for all situations.  With the Cisco 3600 series
 AP, we have deployed them using the Cisco 180 patch which is similar to the
 Terrawave.  Primarily these have been used in our sport venues to cover
 entrance gates for ticket scanners.  The one thing I would look out for is
 how far you intend to have the directional antenna reach.  If the clients
 are using low-powered omni antennas they might not be able to transmit as
 far as the directional antenna and higher power that you are using on the
 AP.  If you are talking about using the directional antennas for a
 Point-to-Point link then this is not a problem.  Our goal with external
 antennas is similar to yours, we want to keep the outside signal for
 outside devices and the inside signal for inside devices.  In the ticket
 gate scenario that we use directional antennas at, we have to utilize
 802.11b rates to get the distance / performance from the end devices
 needed.  Our mounting assets for access points are not close enough to the
 gates and the end devices dont have a high power setting to enable 802.11g
 or 802.11a.

 ** **

 -Jimmy

 ** **

 -- 

 James Helzerman
 University of Michigan

 ** **

 On Tue, Jul 23, 2013 at 8:05 PM, Jason Cook jason.c...@adelaide.edu.au
 wrote:

 Hi All,

  

 Just wondering what people have done with external antenna’s?

  

 The question I have is primarily around whether or not to use 360 degree
 Omni or 180 degree patch antenna’s on the outside of a building. We have
 been recommended to use 360’s in most cases, even though these put coverage
 back into building where we deploy internal coverage. It seems to me that
 this could cause issues with RF interference, and end up with turning the
 power down on external antenna potentially reducing coverage quality
 outside.  While a 180 will  direct the coverage where intended, leaving
 internals to do their intended job and externals to do theirs. 

  

 We are using Cisco 3602e’s with TerraWave. 

  

 Regards


 Jason

  

 --

 Jason Cook

 Technology Services

 The University of Adelaide, AUSTRALIA 5005

 Ph: +61 8 8313 4800

 e-mail: jason.c...@adelaide.edu.au

  

 CRICOS Provider Number 00123M

 ---

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Re: [WIRELESS-LAN] Question about the signal strength of cisco Aironet 3602E on 5GHz

[James Helzerman]

Hi.  Are you using RRM to manage the radios?  If so what is the reported
power output RRM is setting?  If you manually set power to max do you get a
performance increase?  We have both 3602i and 3602e series with dipoles you
mention with no issues.  We are running 7.2 code currently but plan to
goto7.5 later this summer.

-Jimmy

University of Michigan


On Tue, Apr 30, 2013 at 11:36 AM, Linchuan Yang
linchuan.y...@concordia.cawrote:

  Dear All

 ** **

 We found that the signal strength of cisco Aironet 3602E (with omni
 directional antenna AIR-ANT2524DW-R)  on 5GHz is quite unstable (2.4GHz is
 good). I am using a HP win7 laptop, and sitting 5 meters away from the AP.
 Usually the signal strength on the laptop is only one or two bars (out of
 5). However, I use some third party application (e.g. Xirrus, Ekahau), the
 signal strength is -47 (almost same value as shown on the controller). Do
 you have the similar problem? Is it a bug of Win7 or Cisco WLC (We are
 using version 7.2.111.3)?

 ** **

 Have a nice day.

 ** **

 Yours,

 Linchuan Yang (Antony)

 Wireless Networking Analyst
 Network Assessment and Integration,
 IITS-Concordia University
 Tel: (514)848-2424 ext. 7664

 ** **

 ** **
  ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.




-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] RF blankets for Ipad carts

[James Helzerman]

Hi.  Would there be a benefit to having an AP located in the storage areas?
 Ideally the devices would roam to that AP and stay connected.  Of course
this assumes the device will roam, you have available channels, and other
things but this is just a thought.  One benefit could be if updates needed
to be done it could utilize the AP in the storage area.

Other than that my manager did show me a post about wallpaper that will
block RF signal.

http://whatsnext.blogs.cnn.com/2012/07/18/signal-blocking-wallpaper-stops-wi-fi-stealing-and-comes-in-a-snowflake-pattern/comment-page-1/


-Jimmy

On Fri, Dec 14, 2012 at 10:15 AM, Phillips, James jphill...@pima.eduwrote:

 ** **

 We have several Ipad carts stored in one location.  The departments in
 charge of these do not want to touch each Ipad to turn it off or to turn
 off the WiFi.

 Is there an RF blankets or some kind of RF shielding for the carts so that
 all the Ipad when not is use will not associate with the closest AP?

 ** **

 ** **

 Jim Phillips

 Principal Analyst - IT Network Service

 _

 Pima Community College

 4905A East Broadway Blvd.

 Tucson, Az 85709-1282

 jphill...@pima.edu

 ** **
 ** Participation and subscription information for this EDUCAUSE
 Constituent Group discussion list can be found at
 http://www.educause.edu/groups/.




-- 
James Helzerman
Wireless Network Engineer
University of Michigan - ITS Communications Systems and Data Centers
Phone: 734-615-9541

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.