We really like the 702s. I wish they would have been an option a few years ago when we were adding full RF and density coverage in the dorms. They would have saved a lot of time and money and kept us out of the hallway deployment models in the bomb shelter construction dorms:) On campus they are a great solution for those overlooked corner offices stuck behind an elevator shaft and such.
On Thu, Feb 19, 2015 at 1:45 PM, Williams, Matthew <mwill...@kent.edu> wrote: > Matt, > > Thanks for the info. How are the 702s working out? We’re looking into > them as well. > > > > Respectfully, > > > > Matthew Williams > > IT Manager, Wireless > > Kent State University > > Office: (330) 672-7246 > > Mobile: (330) 469-0445 > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Matt O'Brien > *Sent:* Thursday, February 19, 2015 3:42 PM > > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] Looking for testimonials- 8510 vs 5508 WLC > reliability > > > > Matt, > > We never saw watchdog errors on 8.0. We moved to MR1 to take advantage of > the trunk option on the 702w's. We held up on adding 702w's until we could > assign different VLAN's to the switchports and keep the Users VLAN the > same. It also came out at a convenient time, a couple weeks before the > spring semester so we had time to look at it and move back to 8.0 if > necessary. > > > > On Thu, Feb 19, 2015 at 1:22 PM, Williams, Matthew <mwill...@kent.edu> > wrote: > > Lee, any time. > > > > Kitri, the 10 minute time for a failure event to be triggered, the HA to > become the primary, and the “failed” controller to come back up to a full > Hot Standby has been consistent. We’ve seen that the secondary controller > has to reboot between two and three times before we have full SSO > redundancy again. > > > > Matt, did you see any watchdog errors in 8.0? What caused you to go with > 8.1? Thanks. > > > > Respectfully, > > > > Matthew Williams > > IT Manager, Wireless > > Kent State University > > Office: (330) 672-7246 > > Mobile: (330) 469-0445 > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Kitri Waterman > *Sent:* Thursday, February 19, 2015 3:16 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > > *Subject:* Re: [WIRELESS-LAN] Looking for testimonials- 8510 vs 5508 WLC > reliability > > > > Matt, > > You mentioned "10 min for full HA convergence" which seems long. But then > again, we've also seen a consistent issue where during an HA event the > configs are reported as "out of sync" and the secondary controller has to > reboot, sometimes more than once to re-sync. > > My current theory is that very dynamic parts of the configs like rogue > adhoc alerts should be left out of the controller XML sync check and this > would enable faster HA pairing. > > > Kitri Waterman > -- > Network Engineer (Wireless) > University of Oregon > > > On 2/19/15 11:58 AM, Williams, Matthew wrote: > > So far for us, I the benefits outweigh the risks. In our case, when we > failed one route engine the 8510s simply failed over to the HA box and > there was no perceivable degradation in the user experience. Our issues > with using Layer-2 for the HA only occurred if BOTH of our upstream > switches had a routing engine failure within the 10 minutes it takes for > the full HA convergence time. The odds of that happening at the same time > are extremely remote and would most likely indicate a much larger > networking issue that would trump a wireless outage. > > > > We chose to do the direct connection just to be extra safe. In fact, the > only reason we even found out about the routing engine issue was because we > replaced routing engines in each of our upstream switches at roughly the > same time. > > > > I don’t know how much testing you have done with the 8510s but we’ve run > them through some pretty good paces. > > > > Respectfully, > > > > Matthew Williams > > IT Manager, Wireless > > Kent State University > > Office: (330) 672-7246 > > Mobile: (330) 469-0445 > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] *On Behalf Of *Lee H Badman > *Sent:* Thursday, February 19, 2015 2:49 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] Looking for testimonials- 8510 vs 5508 WLC > reliability > > > > I saw the bowing thing- that’s insane. It makes me curious about the racks > they are mounted in. > > > > To date, do you see the advantages of the 8510 as outweighing the concerns? > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] *On Behalf Of *Williams, Matthew > *Sent:* Thursday, February 19, 2015 2:46 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] Looking for testimonials- 8510 vs 5508 WLC > reliability > > > > Lee, > > We’re going through this as we speak. We’ve seen some issues with the > controllers physically bowing. We’ve also had issues with running HA via > Layer-2 when upstream routing engines/supervisor cards fail. Part of the > issue is that there is very limited keep alive timer control in our version > of code and the thresholds aren’t high enough to mitigate the route engines > switching over. Cisco recommends direct connecting them, so we’ve resorted > to using switches as media converters for the direct connection. > > > > The good news is that 8.0.100 reintroduced timer controls that did > mitigate the failures when using Layer2 for the HA. The bad news is that > 8.0.100 caused watchdog failures in the 8510s. > > > > Respectfully, > > > > Matthew Williams > > IT Manager, Wireless > > Kent State University > > Office: (330) 672-7246 > > Mobile: (330) 469-0445 > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] *On Behalf Of *Lee H Badman > *Sent:* Thursday, February 19, 2015 2:35 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* [WIRELESS-LAN] Looking for testimonials- 8510 vs 5508 WLC > reliability > > > > One more for the group: Having a large number of 5508s, I have an interest > in greatly simplifying the environment by moving to higher capacity 8510s > (zero interest in 5760s). > > > > I’m hoping to hear from those that have taken the 8510 plunge. For us, > outside of code issues, the 5508s have been solid hardware for us. Would > like to know whether current 8510 users find them to be reliable as > hardware, and whether the HA promises live up to the glossy. > > > > Thanks- > > > > Lee B. > > > > Lee Badman > > Wireless/Network Architect > > ITS, Syracuse University > > 315.443.3003 > > (Blog: http://wirednot.wordpress.com) > > > > > > > > ********** 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/. > > > > ********** 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/. > > > > > > -- > > Matt O'Brien > Manager/Communications Engineer > Boise State University > > 1910 University Drive, Boise, ID, 83725-1249 > Phone: (208) 426 4068 > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > -- Matt O'Brien Manager/Communications Engineer Boise State University 1910 University Drive, Boise, ID, 83725-1249 Phone: (208) 426 4068 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
