Thanks, Brandon. For us, when we got around 14K clients with AVC enabled, 
latency on all WLANs shot up to several hundreds of ms. Is still an open TAC 
case, easily reproducible, but it did take a certain number of clients before 
the effect manifested. Very good to hear the rest of your success.

-Lee

Lee Badman | Network Architect
Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003   f 315.443.4325   e lhbad...@syr.edu<mailto: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] On Behalf Of Case, Brandon J
Sent: Monday, October 12, 2015 1:40 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Cisco WLC w/ ISE and/or Clearpass for Large-Scale 
Guest Access, MAC exceptions- problems?

Hi Lee,

Here are Purdue we've got a fleet of WLCs, mostly WiSM2s from which we're 
migrating to 8510s. We have one 8510 dedicated to wireless service in our 
residence halls. It has around 2400 APs joined to it and I've personally seen 
the concurrent user count reach over 11k during peak hours. It provides 4 SSIDs 
(not great but could be worse): our main 1x network that we provide everywhere 
else on campus, one for gaming/media/non-1x devices, eduroam and attwifi. The 
gaming/media SSID is open with MAC auth and has the most complex setup of all 
of those.

We use ISE to have the students register their various devices through a portal 
which then adds it to an identity group that's used in authorization policy. To 
prevent students from connecting their laptop/phone/tablet/whatever to the 
gaming/media network we're using a logical profile in ISE. If they do happen to 
connect something to the gaming/media network that could connect to the 1x 
network we drop them at a page that instructs them to connect the device to the 
main 1x network. It works well enough but the biggest headache we've had with 
it is XBox Ones. Since they profile in ISE as Windows 8 machines most of the 
time, we've had to manually assign some of them to the XBox One profile we 
created. Of course that means a request comes through a trouble ticket via our 
helpdesk or the ever-popular back channels that seem to keep working. Either 
way, a less than satisfactory user experience. However, by and large the system 
works well and has seen increased usage as time has gone on (this is the second 
semester it has been live).

We do have AVC enabled on the 1x network but so far /knockonwood we haven't had 
any problems as a result of that. To answer your original questions though: we 
haven't had any major issues or disappointments related to the controller.

Thanks,
--
Brandon Case
Senior Network Engineer
IT Infrastructure Services
Purdue University
ca...@purdue.edu<mailto:ca...@purdue.edu>
Office: (765) 49-67096
Mobile: (765) 421-6259
Fax:    (765) 49-46620

PGP Fingerprint:
99CB 02D6 983C 1E2A 015F  205C C7AA E985 A11A 1251



From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Lee H Badman
Sent: Monday, October 12, 2015 12:11 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: [WIRELESS-LAN] Cisco WLC w/ ISE and/or Clearpass for Large-Scale Guest 
Access, MAC exceptions- problems?

Hello to the excellent group.

I'm dealing with a catastrophic code issue with AVC right now on our 8510s that 
has me nervous about another feature we plan on using- the tight integration 
between our WLCs and either ISE, Clearpass, or SafeConnect SE. We currently do 
all wireless guest access through a 3rd party box that is growing long in the 
tooth.

For those on high-capacity 85xx controllers and using the likes of web 
redirect/policies on the WLC for guest operations and MAC exceptions, have you 
run into any WLC code issues that have crippled the service or resulted in 
organization embarrassment? Any gotchas or disappointments?


Thanks-

Lee

Lee Badman | Network Architect
Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003   f 315.443.4325   e lhbad...@syr.edu<mailto:lhbad...@syr.edu> w 
its.syr.edu
SYRACUSE UNIVERSITY
syr.edu



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