Thanks for your response. It's very helpful. John
Brian J David wrote: > John, > We are an Aruba shop, > The way we have it setup here at BC is a Master (with all Vlans configured > on it) and 4 local controllers (sup2's around 600 AP70's) The master is our > failover, all 600 AP's are spread across the 4 locals and the master is our > backup (no AP's on it). I had a problem with a local 1 and when it failed > about 200 AP's failed over to the master and the users had no Idea. Now it > sounds like our topology is different than yours but as long as your master > can handle all the AP's that would fail over to it you should not have a > problem. > > Brian J David > Network Systems Engineer > Boston College > > > -----Original Message----- > From: John Rodkey [mailto:[EMAIL PROTECTED] > Sent: Tuesday, May 22, 2007 7:24 PM > To: [email protected] > Subject: [WIRELESS-LAN] 'Clustering' and 'failover' in the context of Aruba > > We are currently considering expanding our existing wireless environment > to cover additional dorms. > By doing so, we will exceed the capacity of our current controller, and > can either add an additional controller > card or for a slight incremental cost, add another controller. We > planned to add the additional controller, with > the idea that the controller would allow redundancy/failover/clustering > to happen, so that if one controller > were to go down, for instance, the other would take over. > > We were subsequently told that this was a faulty understanding of the > failover function. > So we thought we might be able to try another approach: every other WAP > would be controlled by alternating controllers. > That way, if controller A, with waps 1,3,5,7,9... on it were to go down, > the coverage in any given building would be halved, because controller > B, with waps 2,4,6,8 ... would continue to run. > Nope, that is a bad idea, says the contact: each controller will > maintain its own heat map and routing info, etc. and as a result, there > would be nowhere to look for a unified picture of the wireless network. > > So I'm confused: what is the exact nature of controller clustering or > failover under Aruba? > Given somewhere in the neighborhood of 200 APs, how should one configure > the controllers > > John > > ********** > 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/.
