RE: A quick roundup of clients per standard in universities

[Glinsky, Eric]

Hi Manon,

I wanted to point out that the numbers I provide don't reflect on client 
capability, just what protocol they actually connect with. For example, 
inevitably we have some AX-capable clients on campus, but we don't have any AX 
APs deployed, so I had to put in 0 for AX clients. We do still have areas with 
N-only APs deployed. There could be areas with coverage issues where an 
AC-capable client might be reduced to N on 2.4 GHz. So our client balance is 
overwhelmingly N, even though I'm sure we'd see many more AC and AX clients if 
we had the infrastructure and coverage for it everywhere.

It'll be interesting to see how our balance compares to the resulting data from 
the survey.

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Manon Lessard
Sent: Monday, March 8, 2021 9:59 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] A quick roundup of clients per standard in universities

*Message sent from a system outside of UConn.*

Good morning everyone

I am working on a paper for a uni class I am currently taking, and I am 
wondering about the client mix in other universities.
Of course, some of us have few students on campus because of Covid, but 
nevertheless I would appreciate your input as to what the client mix looks like 
in your institution. If you do not mind helping me gathering data, please fill 
my little survey 
here

Thank you for your time and contribution!

Manon Lessard
Chargée de programmation et d'analyse
CCNP, CWNE #275
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality



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Re: [WIRELESS-LAN] A quick roundup of clients per standard in universities

[Manon Lessard]

I will be happy to share the results of the survey.
It will not be a super scientific analysis, but I think it’ll be interesting to 
know.
Thank you

Manon Lessard
Chargée de programmation et d’analyse
CCNP, CWNE #275, AWA 10, ESCE Design
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality


From: The EDUCAUSE Wireless Issues Community Group Listserv 
 on behalf of "Hales, David" 

Reply-To: The EDUCAUSE Wireless Issues Community Group Listserv 

Date: Monday, March 8, 2021 at 10:25 AM
To: "WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU" 
Subject: Re: [WIRELESS-LAN] A quick roundup of clients per standard in 
universities

[Externe UL*]
I filled out the survey and was hoping that you would share the results here 
once it is complete.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Manon Lessard
Sent: Monday, March 8, 2021 8:59 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] A quick roundup of clients per standard in universities


External Email Warning

This email originated from outside the university. Please use caution when 
opening attachments, clicking links, or responding to requests.


Good morning everyone

I am working on a paper for a uni class I am currently taking, and I am 
wondering about the client mix in other universities.
Of course, some of us have few students on campus because of Covid, but 
nevertheless I would appreciate your input as to what the client mix looks like 
in your institution. If you do not mind helping me gathering data, please fill 
my little survey 
here

Thank you for your time and contribution!

Manon Lessard
Chargée de programmation et d’analyse
CCNP, CWNE #275
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality



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

[Christina Klam]

Jimmy, 
You are right. The wifi stats for all of the SSIDs together are less than 
500Mbps. So, 2Gbps will suit us fine. And the interface uplinks to the WLC have 
not hit 1Gbps in the last year. 

Thanks for the that direction. 

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" 
 
Sent: Monday, March 8, 2021 9:34:08 AM 
Subject: Re: [WIRELESS-LAN] Cisco Catalyst 9800-CL 

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 < [ mailto:ck...@ias.edu | 
ck...@ias.edu ] > 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 
[ mailto:ck...@ias.edu | ck...@ias.edu ] 



From: "James Helzerman" < [ mailto:jarh...@umich.edu | jarh...@umich.edu ] > 
To: "The EDUCAUSE Wireless Issues Community Group Listserv" < [ 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU | 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 < [ mailto:ck...@ias.edu | 
ck...@ias.edu ] > wrote: 

BQ_BEGIN

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 
[ mailto:ck...@ias.edu | ck...@ias.edu ] 



** 
Replies to EDUCAUSE Community Group emails are sent to the entire community 
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paste their email address and forward the email reply. Additional participation 
and subscription information can be found at [ 
https://www.educause.edu/community | https://www.educause.edu/community ] 




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


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paste their email address and forward the email reply. Additional participation 
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BQ_END



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


** 
Replies to EDUCAUSE Community Group emails are sent to the entire community 
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RE: A quick roundup of clients per standard in universities

[Hales, David]

I filled out the survey and was hoping that you would share the results here 
once it is complete.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Manon Lessard
Sent: Monday, March 8, 2021 8:59 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] A quick roundup of clients per standard in universities


External Email Warning

This email originated from outside the university. Please use caution when 
opening attachments, clicking links, or responding to requests.


Good morning everyone

I am working on a paper for a uni class I am currently taking, and I am 
wondering about the client mix in other universities.
Of course, some of us have few students on campus because of Covid, but 
nevertheless I would appreciate your input as to what the client mix looks like 
in your institution. If you do not mind helping me gathering data, please fill 
my little survey 
here

Thank you for your time and contribution!

Manon Lessard
Chargée de programmation et d'analyse
CCNP, CWNE #275
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality



**
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

**
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

A quick roundup of clients per standard in universities

[Manon Lessard]

Good morning everyone

I am working on a paper for a uni class I am currently taking, and I am 
wondering about the client mix in other universities.
Of course, some of us have few students on campus because of Covid, but 
nevertheless I would appreciate your input as to what the client mix looks like 
in your institution. If you do not mind helping me gathering data, please fill 
my little survey here

Thank you for your time and contribution!

Manon Lessard
Chargée de programmation et d’analyse
CCNP, CWNE #275
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality



**
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

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

[Sidharth Nandury]

For anyone who is still dealing with Zoom issues on Mac computers
primarily, here are our findings (still troubleshooting the resolution):

We saw packets from wireless clients primarily being dropped every couple
of minutes, leading to a frozen screen/ delayed audio experience for users.
We confirmed dropped packets by using PingPlotter on the end client while
they were experiencing the issue and running a packet capture at the same
time on the end-client machine. What we found was ARP responses from the
client to search for the gateway were being delayed. The client sends out
an ARP request to find the gateway IP and the response is taking over 2-3
seconds leading to the packet being dropped. We can correlate the times of
the dropped packets to the ARP requests.

We have cases opened with our vendors to troubleshoot further. My question
to the wise people here is if anyone has seen this happen or gone further
than we have to resolve this issue?

Thank you.

Sid

On Tue, Feb 16, 2021 at 10:18 AM Hales, David  wrote:

> Checking your session logs after a Zoom call would probably help quite a
> bit.  See if your sessions are staying UDP or if they’re switching to TLS.
> If most of them are staying UDP then you’ve probably got your rules set up
> right.
>
>
>
> *David M. Hales | *
> *Network Systems Administrator, Information Technology Services *
> *Tennessee Tech University *Clement Hall 117
> Cookeville, TN 38505-0001
> ph: 931-372-3983 | fax: 931-372-6130
> http://www.tntech.edu/its
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Sidharth Nandury
> *Sent:* Monday, February 15, 2021 3:09 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues
>
>
>
> *External Email Warning*
>
> *This email originated from outside the university. Please use caution
> when opening attachments, clicking links, or responding to requests.*
> --
>
> We did recently introduce NAT to our wireless subnets this semester and
> are trying to figure out whether the NAT and larger subnets are causing
> issues.
>
>
>
> Sid
>
>
>
> On Mon, Feb 15, 2021 at 3:38 PM James Helzerman  wrote:
>
> Someone mentioned NAT here and got me thinking if this affects NAT vs
> public address more than the other?
>
>
>
> For those having issues, are you NAT'ing on campus?  I dont recall seeing
> or hearing of many issues with Apple and zoom on our campus.  Of course it
> could be that they are not reported either so take my previous statement
> with a grain of salt.  We use public addresses.
>
>
>
> -Jimmy
>
>
>
> On Mon, Feb 15, 2021 at 1:39 PM Tim Tyler  wrote:
>
> Yes, they say both directions, but when I read the “source” column, I
> don’t see anything but zoom client in that column.  That implies to me 100%
> outbound for initiated sessions.
>
> I am concerned about the Mac issue having been brought up here
> though.
>
> Tim
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Hurt,Trenton W.
> *Sent:* Monday, February 15, 2021 9:32 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues
>
>
>
> It says it right above the table listing all the ports and addresses
>
>
>
>
> Zoom firewall rules
>
> To configure your network firewall, please see the following table. All
> rules should be applied both inbound and outbound.
>
>
>
> Sent from my mobile device.
>
>
>
> Trent Hurt
>
>
>
> 5028521513
>
>
>
> University of Louisville
>
>
>
>
>
>
>
>
>
>
>
>
> --
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Tim Tyler <
> ty...@beloit.edu>
> *Sent:* Monday, February 15, 2021 10:06 AM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues
>
>
>
> *CAUTION:* This email originated from outside of our organization. Do not
> click links, open attachments, or respond unless you recognize the sender's
> email address and know the contents are safe.
>
> So I looked at that url mentioned in this dialogue and I didn’t see any
> requirements for inbound.  All sources from what I observed were rules for
> Zoom clients which from a firewall stand point would be outgoing.  I didn’t
> see any initiated sessions incoming requirements.
>
>I am curious.  Is anyone else interpreting this differently?
>
>
>
> I should note that I never set any incoming rules last semester and had
> minimal complaints on zoom which would seem to affirm that one doesn’t need
> an incoming rule.  Am I missing something here?
>
> Tim
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Hales, David
> *Sent:* Friday, February 12, 2021 4:25 PM
> *To:* 

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
> 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
>
> **
> 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 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