Mark, yes it's not public but access is free after registration. Just register at www.ciscolive365.com<http://www.ciscolive365.com> to access all presentation material for free which I strongly recommend if you're using Cisco equipment. Another forum if you not prefer our "expertise" is Cisco forum at https://supportforums.cisco.com/index.jspa where the story is the same (free access but register if you wish to do you a entry of your own). I would prefer the answers from support forum rather than the TAC especially if you encounters their infamous 3rd line support which is populated by low cost non Cisco personnel. Trust me I've been there. ;) In order to get a proper answer from the TAC you need to make sure that your TAC case has been escalated to the real Cisco TAC people. There are some very good people there but you won't reach them right away.
Cheers Anders Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Mark Duling Skickat: den 1 augusti 2012 01:01 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Ämne: Re: [WIRELESS-LAN] Wireless Client Subnet sizing Luke, it looks like that presentation isn't public. Can you say more about Cisco's recommendations on that? Or are they simply saying /21 is the maximum recommended size? I'd also be interested in anything they said about mcast as it relates to size. I've setup vlan select on a test WLAN with the intent of breaking up my /21 into smaller pieces for the fall, but I've had no problems with it (though mcast is off). But I thought I would use smaller subnets since our wireless use has gone up quite a bit in recent years and doing it is so simple to do now. I've heard conflicting info, and to my surprise one time a TAC engineer suggested they should be no larger than /24, which I think is erroneous. Mark On Tue, Jul 31, 2012 at 2:43 PM, Luke Jenkins <ljenk...@weber.edu<mailto:ljenk...@weber.edu>> wrote: What type of gear are you using? Cisco is now recommending using /21s for their unified wireless gear (Sujit Ghosh, Cisco Live US 2012 BRKEWN-2010, Slide 75). -Luke =-=-=-=-=-=-=-=-=-=-=-= Luke Jenkins Network Engineer Weber State University On Jul 31, 2012, at 11:59 AM, Craig Simons <craigsim...@sfu.ca<mailto:craigsim...@sfu.ca>> wrote: > All, > > We are looking at re-engineering our wireless networking IP space and I'm > wondering what type of boundaries other have pushed their networks to. We are > currently using /22 networks (14 of them) most of which during a busy period > of the day will run around 75-80% utilization (at least as far as DHCP > assignments go). When I look at most APs during the day, I see that most APs > have users belonging to several networks (roaming), and as we have multicast > disabled, it would seem that the advantages of segregating wireless networks > on the basis of limiting broadcast domain are moot. Is anyone running /21 > networks or larger? > > We've investigated NAT, but accurately logging internal-external IP address > assignments for our users has proven difficult. Our vendor also doesn't > currently support any type of "VLAN pooling" feature. > > Interested in your opinions, > Craig > > > > -------------------------------------- > Craig Simons > Network Operations > Simon Fraser University > Burnaby BC, Canada > em. craigsim...@sfu.ca<mailto:craigsim...@sfu.ca> > ph. 778-782-8036<tel:778-782-8036> > ce. 604-649-7977<tel:604-649-7977> > tw. twitter.com/simonscraig<http://twitter.com/simonscraig> > -------------------------------------- > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found > athttp://www.educause.edu/groups/<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/.
