Danny, Thanks for this. I've been trying to track down what appears to be this exact issue.
We just downgraded back to 7.4.110 (from 7.5.102). The two bugs we were hitting/possibly hitting per TAC: CSCuh54532 7.5.1.75: 5500 HA active crashes due to memory corruption CSCub95009 Pmalloc memory corruption seen on the Active HA WLC - resolved in latest 7.4. The second one appears to not be resolved or was reintroduced in 7.5.102 from what I can gather. Kitri On 10/19/13 2:26 PM, Danny Eaton wrote: > > After going about it again, I've got HA working in the lab. Of > course, I have found two bugs, one described below (one below > regarding the HA timers) and a new one, just found last week. > Suggestion from Cisco is "config redundancy timer peer-search-timer > 180". The second is this one. > > > > CSCuj83637 WLC HA: service port with DHCP address loses > connectivity after failover > > > > > > > > > > > > *From:*The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Frank Bulk > *Sent:* Saturday, October 19, 2013 4:46 AM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] WiSM-2 in HA configuration on 7.5.102.0 > code... > > > > This reminds me of the WISM demo that Cisco performed for Network > Computing at SU's CENT labs many years ago. They had three great > techs there, but even though it was scheduled demo (that I assumed > they had pre-staged), it still didn't go smoothly. HA is hard to do > well, and I'd be holding back the last 10% of the bill if > functionality like that was specified in the negotiations but not > working. > > > > Frank > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Kitri Waterman > *Sent:* Thursday, October 10, 2013 3:35 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> > *Subject:* Re: [WIRELESS-LAN] WiSM-2 in HA configuration on 7.5.102.0 > code... > > > > We have HA (AP and Client SSO) for separate WISM2's deployed in > separate chassis without VSS (one of the big promises of 7.5...), so I > might be able to provide some help. > > > > HA in action is amazing: thousands of our clients and APs failing over > seamlessly (no re-associations, barely even a ping drop). > > > > That said, we've run into multiple major bugs both with HA and with > 7.5, so I wouldn't recommend moving until 7.6 or at least a bug fix > for 7.5. I've heard off hand from Cisco that 7.6 is slated for before > December. After working with TAC and tweaking our redundancy timers, > we finally have HA when running the "redundancy force switchover" cmd. > But we still aren't seeing full HA when an entire chassis reboots -- > so not truly HA -- and Cisco has that filed as a known bug. > > > > > > Kitri Waterman > > - > > Network Engineer > > Information Services > > University of Oregon > > > > > > > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Danny Eaton > *Sent:* Thursday, October 10, 2013 12:46 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> > *Subject:* [WIRELESS-LAN] WiSM-2 in HA configuration on 7.5.102.0 code... > > > > Is anyone using WiSM-2 in HA configuration? I'm trying to test it in > my lab, and the first pass (following the document here > http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080bd3504.shtml#guiconfig) > was unsuccessful. I'd like to get some perspective from someone who > has made it work successfully. Are you using the HA in a single > chassis, or VSS? Email me off list, if you can shed some light... > > > > Respectfully, > > > > Danny Eaton > > > > Snr. Network Architect > > Networking, Telecommunications, & Operations > > Rice University, IT > > Mudd Bldg, RM #205 > > Jones College Associate > > Office - 713-348-5233 > > Cellular - 832-247-7496 > > dannyea...@rice.edu <mailto:dannyea...@rice.edu> > > > > Soli Deo Gloria > > Matt 18:4-6 > > > > G.K. Chesterton, "Christianity has not been tried and found wanting. > It's been found hard and left untried." > > > > > > > > > > ********** 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/. > > !DSPAM:911,5262550b277484031772114! > > ********** 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/.
