I completely agree with your comments about the limitations. We also have special-purpose WLANs. As Phil mentions, the WLAN override design is seriously flawed. We approached Cisco last year about this issue and we requested that it be redesigned. But I don't see it changing any time soon.
I know this has been mentioned before, but I encourage everybody to contact your Cisco rep and "nag" (sorry, I don't have a better word) them about this and all the other problems that we encounter with their product. That's the only way we can put pressure on them to make the necessary changes we need in a timely fashion. With every revision that comes out, there seems to be more open caveats than there are resolved. I can tell you that my rep has nightmares about me. I send him an email about once a month. Thanks, Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 08, 2008 7:26 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] <SPAM> RE: [WIRELESS-LAN] WLAN Override- Again a WiSM question Hi Hector, "One way to get around this is to define all your SSIDs in all of your controllers so that the APs never lose their configs. " The implication here is that now the SYSTEM only supports 16 SSIDs, not each AP- huge limitation. We have primary and secondary controllers for each AP defined, and manage what goes where. We have small groups of APs (like 2, or 16 depending on the application) that have special-purpose use and unique IDs. Then all other APs get our "common use SSIDs". But to apply the special use SSIDs only to the few APs that need them they have to be pushed to all APs, then deselected on the ones that shouldn't have these SSIDs with WLAN override. (and rebooted). When we loose SSIDs, it's never the special-purpose ones- it's the general use SSIDs that do have interfaces and like profiles on all controllers. -Lee Badman ________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Hector J Rios Sent: Wednesday, May 07, 2008 7:52 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] WLAN Override- Again a WiSM question I found out a couple of things. First, there seems to be a bug that causes this problem if the WLAN profile name and the WLAN SSID name are not the same. So just make sure those names are exactly the same. Second, and most exiting, APs download configuration from controllers they join. If you have an AP on controller X with SSIDs A and B and WLAN override on and the AP joins another controller with different SSIDs, the AP will lose its configuration. So when the AP goes back to controller X, your WLAN override settings are lost. Pretty fancy. One way to get around this is to define all your SSIDs in all of your controllers so that the APs never lose their configs. But we all know how practical that is. Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 01, 2008 11:18 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] WLAN Override- Again a WiSM question One more question on WiSMs, to check my own sanity. I'm starting to see what appears to be a trend. Where I have WLAN override selected and applied and in use for a while with no issues, it seems that randomly SSIDs are either dropping from the list of selected SSIDs and need to be reapplied, or are in the list and selected, but not actually being transmitted and require a reboot to get them to behave again. Is like config is partially lost. I have seen this around a dozen times over the last several months, not tied to any specific controller or WLAN, just feels a bit indiscriminate. Anyone else getting this condition? Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ********** 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/. ********** 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/.
