We’re looking at using the 1,000 AP licenses when we upgrade, but doing N:N redundancy. With that it should balance out to around 500/WiSM2 during normal operation with the ability to go up to 1,000 during failures/upgrades.
Now if only Cisco would offer cheaper licensing for redundant WiSMs…
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Danny Eaton
Sent: Thursday, February 02, 2012 4:10 PM
To: [email protected]
Subject: Re: [WIRELESS-LAN] End of Sale/End of Life Announcement on WiSMs
Does anyone else have heartburn about putting 500 (or in the future 1,000) APs on a single controller? With our deployment, 150 per controller is roughly 2-3 of our bigger buildings, and several of the smaller – but not necessarily geographically together. We can minimize an outage by putting different neighboring buildings on different WiSM blades. With 500 APs on a single controller (or 1,000 in the future), a WiSM outage could take down half the campus – or the whole campus in many cases. Seeing as our students (and faculty, frankly) see wireless as a desired connectivity method, that prospect is scary, to me.
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Robertson, Joshua A.
Sent: Thursday, 02 February, 2012 13:12
To: [email protected]
Subject: Re: [WIRELESS-LAN] End of Sale/End of Life Announcement on WiSMs
We hit the same issue here, we have 7 WiSM 1s and 3 WiSM 2s. I had just finally gotten away from a mixed code environment this past summer after putting the last 1010s out to pasture and now there’s this.
On our end we’re working to fund replacing the WiSM 1s with WiSM 2s this summer, fingers crossed that will work out. I am very disappointed that Cisco would kill upgrades to the WiSM 1 code so shortly after introducing the WiSM 2.
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Lee H Badman
Sent: Thursday, February 02, 2012 1:32 PM
To: [email protected]
Subject: [WIRELESS-LAN] End of Sale/End of Life Announcement on WiSMs
http://www.cisco.com/en/US/prod/collateral/modules/ps2706/ps6526/end_of_life_notice_c51-691055.html
Somehow this escaped me, and now I’m dealing with not getting wind of it earlier.
It’s no surprise that WiSMs are getting long in the tooth, but the part of the announcement that (I think) sucks is that we have a quantity of 3600 APs ready to get installed. These APs need 7.1 Code. WiSMs will not run 7.1 code.
We have (6) 5508s, and 24 controllers on 12 WiSMs. So we have the unfortunate choices of either running a mixed code environment (yeah, that sounds fun) where 3600s may hit controllers that can’t let them associate, shelving our 3600s until we get our 5508s in place and WiSMs retired at the pace we had planned on, or quickly rushing to get rid the WiSMs so we’re not faced with either of the first two situations.
Sharing in case anyone else can benefit…
Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Adjunct Instructor, iSchool
Syracuse University
315 443-3003
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********** 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/.
