Hector, Are the port-channels split between the two physical 6500s or is one controller connected to one switch and the other controller on the second? When you are having the issue, have you looked at the traffic across the VSS or compared what is coming into the 6500s vs what is leaving it? In other words, have you been able to isolate the issue as being on the controllers and not the VSS?
--Christina Christina Klam Network Engineer Institute for Advanced Study 1 Einstein Dr Princeton, NJ 08540 +1 609-734-8154 ck...@ias.edu From: "Hector J Rios" <hr...@lsu.edu> To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Monday, April 23, 2018 11:54:42 AM Subject: Re: [WIRELESS-LAN] Need help Our controllers connect to a pair of 6500s (SUP2Ts) in VSS mode. Each controller pair has two 10G interfaces in a port-channel. -H From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Lee H Badman Sent: Monday, April 23, 2018 9:44 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Need help Hector- do the controllers connect to Nexus boxes, and with what kind of cable? Lee Badman | Network Architect | CWNE #200 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 <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> on behalf of Hector J Rios <hr...@lsu.edu<mailto:hr...@lsu.edu>> Sent: Monday, April 23, 2018 10:09:59 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] Need help All, Last fall we all shared our experiences with the beginning of the semester. Ours was not great, and what we thought had been resolved, came back to bite us, again. If you want more info, search for subject "Re: [WIRELESS-LAN] Move In/Opening Week- Any Problems?" My question to all of you is the following: If you have Cisco 8540s and over 3000 APs, have you ever moved APs from one controller to another with no issues? i.e. You move 3000 APs from one controller to another at once. Please respond and let me know your basic setup. Here is our problem. Last year we moved all of our APs to an HA pair of 8540. We experienced no issues until the beginning of the fall, when all students came back. Last week, we moved all the APs from one HA pair to another, and right away we started experiencing issues. What is the issue? When the issue starts happening, it appears that a good portion of our APs cannot associate to our controllers. It seems like the controllers run out of resources to be able to establish CAPWAP tunnels (memory leak?). Our configuration: Two HA pairs of 8540s, AP/Client SSO AVC turned on, only on eduroam IPv4/IPv6 dual stack support Our oldest AP model is 1140 Software 8.2.161 (yes, we know it is deferred) 3900 APs ********** 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.
