We "just" implemented WiSM2s in our Residential network this week running 7.5.102.0 with SSO HA enabled on Wednesday afternoon.
So far the only issue I have seen, and I don't have any hard evidence on it, has been Apple devices having difficulties obtain IP addresses. This issue was reported over different types of devices from MacBook Pros to iPhones and I think an iPad or two. Not certain what the issue was at the time, I modified the WLAN from providing IP address from an Interface Group consisting of two VLANs - one VLAN was a /21, the other was two /22s using Microsoft DHCP as a superscope. I changed the interface on the WLAN to the /22s (no real reason, just selected it) and I haven't heard of any other issues. In fact I saw the client count jump from 12 clients to 27 at the time and all received IPs. Prior to the modification, only 8 or 9 of the 12 clients had IPs, the remaining clients were reported as having IPs of 0.0.0.0 even after several refreshes. At this time these are totally open networks, so security should be causing this issue and our NAC appliance will be activated in the next week or two. I am obviously worried that Interface Groups are going to be a bigger issue in 7.5.x as we use them in 7.0.x on our old WiSM1 modules which will be replaced in the coming weeks. -dan Daniel Foerst The Catholic University of America From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Joe Roth Sent: Friday, August 16, 2013 3:24 PM To: [email protected] Subject: Re: [WIRELESS-LAN] WiSM2 HA issues One of our analysts is working with TAC and was told today that we may be hitting a known bug, though she hasn't provided the ID yet. She is going to review our logs and "sh tech", she said that the recommendation could be going to 7.5. On Fri, Aug 16, 2013 at 12:44 PM, Joe Rogers <[email protected]<mailto:[email protected]>> wrote: FWIW, I know you specifically mentioned 7.3 and 7.4, but we ran 7.5 for several weeks in a SSO HA configuration between a pair of WiSM2's in a 6500 with Sup720's and had no issues. It was handling ~600 AP's and a couple thousand concurrent users. Joe Rogers University of South Florida On 08/16/2013 11:13 AM, Joe Roth wrote: I was wondering if anyone was running WiSM2's that are paired with an HA SKU model doing AP-SSO. We have had issues with our WiSM2's failing over to the HA peer randomly. This has happened in both 7.3 and 7.4 versions. We have seen a couple of different error messages in prime when this happens. One was regarding the WiSM2 not being able to reach the gateway, the other said that the WiSM2 could not reach it's peer. This happens during off peak times as well. We have three different pairs, and we have seen this issue with all of them, they are all in separate 6500 chassis, so I don't think that it is a chassis specific issue, or specific to one WiSM2 in particular. Two of the WiSMs have 900+ APs, the third has about 300, so it doesn't seem to be load related. Has anyone had a similar experience and found a fix, or is anyone running this successfully without any issues? I dug up a couple of posts on the Cisco forums, but they don't outline a fix. We do have a TAC case open and we are trying to get it escalated to level 2, this hasn't turned up much yet. Thanks. -- Joe Roth Networking Group Binghamton University Ph. 607-777-7528<tel:607-777-7528> Fax 607-777-4009<tel:607-777-4009> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Joe Roth Networking Group Binghamton University Ph. 607-777-7528 Fax 607-777-4009 ********** 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/.
