Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-04 Thread Jeremy Gibbs
Extreme Networks recommends we use a setting of 2 for the DTIM value. *--Jeremy L. Gibbs* Sr. Network Engineer Utica College IITS T: (315) 223-2383 F: (315) 792-3814 E: jlgi...@utica.edu http://www.utica.edu On Thu, Aug 4, 2016 at 9:34 AM, Jake Snyder wrote: > In 60

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-04 Thread Jake Snyder
In 60 seconds I was just over 100 (107) arp requests. This is a test network. I can definitely ramp that up to do more testing. Thanks Jake Snyder Sent from my iPhone > On Aug 4, 2016, at 1:45 AM, James Andrewartha > wrote: > > Hi Jake, > >> On 04/08/16

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-04 Thread Chuck Anderson
One thing you might want to consider is sending the DHCP options to tell clients to not broadcast NetBIOS packets: https://support.microsoft.com/en-us/kb/121005 We've been using the following options for years without problems: option netbios-node-type 2; option netbios-name-servers 0.0.0.0;

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-04 Thread James Andrewartha
Hi Jake, On 04/08/16 14:19, Jake Snyder wrote: > Slightly different test, Meraki SSID, with a MBA13 running 10.10.5. Thanks for giving it a test. > I did a packet capture on the AP filtered for arp and used wireshark on the > Mac with the same capture filter. I'm only tracking arp requests,

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-04 Thread Jake Snyder
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv > <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Jake Snyder > <jsnyde...@gmail.com> > Sent: Wednesday, 3 August 2016 8:56 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] How b

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-03 Thread James Andrewartha
uent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Jake Snyder <jsnyde...@gmail.com> Sent: Wednesday, 3 August 2016 8:56 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] How big are your wireless segments? There was some talk about this with

RE: [WIRELESS-LAN] How big are your wireless segments?

2016-08-03 Thread Chuck Enfield
.EDU] On Behalf Of Lee H Badman Sent: Wednesday, August 03, 2016 10:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] How big are your wireless segments? But what's the penalty on non-Apple devices? -Original Message- From: The EDUCAUSE Wireless Issues Constituent G

RE: [WIRELESS-LAN] How big are your wireless segments?

2016-08-03 Thread Lee H Badman
: [WIRELESS-LAN] How big are your wireless segments? There was some talk about this with IOS a while back. Something about Apple wanting a longer dtim value (3 seems to be working for a lot of folks). Dtim of 1 seemed to give some grief. http://www.sniffwifi.com/2016/05/go-to-sleep-go-to-sleep

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-03 Thread Jake Snyder
There was some talk about this with IOS a while back. Something about Apple wanting a longer dtim value (3 seems to be working for a lot of folks). Dtim of 1 seemed to give some grief. http://www.sniffwifi.com/2016/05/go-to-sleep-go-to-sleep-go-to-sleep.html?m=1 Thanks Jake Snyder Sent

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-08-02 Thread James Andrewartha
On 02/08/16 04:19, Peter P Morrissey wrote: > Given my understanding of the way arp works, not sure I understand how > it is possible for a large subnet to cause a client arp table to become > exhausted unless that client for some reason is directly communicating > with all of the other endpoints

RE: [WIRELESS-LAN] How big are your wireless segments?

2016-07-27 Thread Tim Tyler
] *On Behalf Of *Jake Snyder *Sent:* Tuesday, July 26, 2016 11:25 AM *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU *Subject:* Re: [WIRELESS-LAN] How big are your wireless segments? Actually, they don't have to "respond." They have to process the incoming frame. If they aren't listening for

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-07-26 Thread Jake Snyder
ne /16 vlan does seem enticing and perhaps unnecessary for bridging > protocols. However, I am curious about other overhead efficiency issues. > Tim > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf O

RE: [WIRELESS-LAN] How big are your wireless segments?

2016-07-25 Thread Tim Tyler
[mailto: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Brian Helman *Sent:* Monday, July 25, 2016 10:22 AM *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU *Subject:* [WIRELESS-LAN] How big are your wireless segments? We are in the process of moving from a controllerless vendor to Aruba. Our current

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-07-25 Thread Oliver Elliott
The only real reason to segment these networks is to prevent broadcast storms, and the wireless controllers tend to have built in broadcast suppression rendering this harmless. I changed our main SSID from several /22s to a single /16 a while ago to negate the need to keep adding more subnets as

Re: [WIRELESS-LAN] How big are your wireless segments?

2016-07-25 Thread Tony Skalski
We have about 50 /24s. The Aruba controllers hash the MAC address and drop users into one of the /24s. We are at about 5,000 daily users. We have broadcasts and multicasts turned off for these wireless nets. We don't use VLAN pools. ajs On Mon, Jul 25, 2016 at 10:21 AM, Brian Helman