Did you verify the name of the controller is perfect? Sent from my iPhone
> On Mar 23, 2014, at 6:19 PM, "[email protected]" > <[email protected]> wrote: > > Send CCIE_Wireless mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/cgi-bin/mailman/listinfo/ccie_wireless > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_Wireless digest..." > > > Today's Topics: > > 1. Re: AP fallback (Jason Boyers) > 2. Re: AP fallback (Jeff Rensink) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 23 Mar 2014 20:10:08 -0400 > From: Jason Boyers <[email protected]> > To: Xristos Stefaneskou <[email protected]> > Cc: "[email protected]" > <[email protected]> > Subject: Re: [OSL | CCIE_Wireless] AP fallback > Message-ID: > <calo5k2s2rg6ft-+vpoxpmq5ycv0ogugd9rb8wzohp9-ixfg...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-7" > > Is "AP Fallback" enabled under the Controller->General section? If not, > that's required in order for an AP to fallback to a primary WLC from a > secondary (or tertiary). > > Jason Boyers, CCIE #26024 (Wireless) > Blog: netboyers.wordpress.com > > > On Sun, Mar 23, 2014 at 8:05 PM, Xristos Stefaneskou <[email protected] >> wrote: > >> Hi team, >> >> >> >> I'm doing a review on different failover scenarios and I'm stuck into a >> strange problem. >> >> LAP1 is joined on WLC2 - LAP2 on WLC4. >> >> WLC2 is primary backup for WLC4 and vice versa. >> >> AP fallback and Global AP failover priority are enabled on both >> controllers. >> >> Shutting down the WLC2 failover works and LAP1 joins WLC4 but never joins >> back (fallback) when re-enable WLC2. >> >> I've done this many times without problems but now just doesn't wants to >> work. >> >> >> >> Any idea? >> >> >> >> Best Regards, >> >> *Christos Stefaneskou* >> >> Network Engineer >> >> >> >> [image: Description: Description: Description: Description: Description: >> Description: Description: cid:[email protected]] >> >> *[email protected] <[email protected]>* >> >> *TAC:* (+30) 2109548200 >> >> *Fax:* (+30) 2109548288 >> >> 206, Syggrou Avenue >> >> 17672 - ?allithea - Greece >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: >> >> iPexpert on YouTube: www.youtube.com/ipexpertinc > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > </archives/ccie_wireless/attachments/20140323/af9276f0/attachment-0001.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: image001.jpg > Type: image/jpeg > Size: 2466 bytes > Desc: not available > URL: > </archives/ccie_wireless/attachments/20140323/af9276f0/attachment-0001.jpg> > > ------------------------------ > > Message: 2 > Date: Sun, 23 Mar 2014 19:18:43 -0500 > From: Jeff Rensink <[email protected]> > To: Xristos Stefaneskou <[email protected]> > Cc: "[email protected]" > <[email protected]> > Subject: Re: [OSL | CCIE_Wireless] AP fallback > Message-ID: > <caluhjv2eqxm0afntw3aihsqapqe4jfxkjmzwbs1jwav+nru...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-7" > > So just to clarify the configuration... > > LAP1 does not have a static primary/secondary/tertiary controller > configured. > On WLC2, you have configured WLC4 as a global backup primary controller for > all associated APs. > On WLC4, you have configured WLC2 as a global backup primary controller for > all associated APs. > > If that is the configuration, then LAP1 will definitely not fail back to > WLC2 when it comes back up. The only time an AP is going to preemptively > leave the WLC that they are joined to and move to a different one is if > that other WLC is configured as a higher priority static > primary/secondary/tertiary on the AP itself and the AP fallback feature is > enabled on the WLC that the AP is currently associated to. > > Barring that scenario, it's only going to move to another WLC if it loses > connection to its current WLC or if the WLC kicks it off. > > If I was wrong about the configuration, please clarify what is configured > for the following settings. > > > - The primary/secondary/tertiary WLCs configured on LAP1 itself > - The AP fallback setting on both WLC2 and WLC4 > - the backup primary/secondary global settings for WLC2 and WLC4 > - The fast heartbeat timer settings on WLC2 and WLC4 > > > > > Regards, > > > > Jeff Rensink : Sr Instructor : iPexpert <http://www.ipexpert.com/> > > CCIE # 24834 :: Wireless / R&S > > :: World-Class Cisco Certification Training > > Direct: +1.810.326.1444 > > :: Free Videos <http://www.youtube.com/ipexpertinc> > > :: Free Training / Product Offerings <http://www.facebook.com/ipexpert> > > :: CCIE Blog <http://blog.ipexpert.com/> > :: Twitter <http://www.twitter.com/ipexpert> > > > On Sun, Mar 23, 2014 at 7:05 PM, Xristos Stefaneskou <[email protected] >> wrote: > >> Hi team, >> >> >> >> I'm doing a review on different failover scenarios and I'm stuck into a >> strange problem. >> >> LAP1 is joined on WLC2 - LAP2 on WLC4. >> >> WLC2 is primary backup for WLC4 and vice versa. >> >> AP fallback and Global AP failover priority are enabled on both >> controllers. >> >> Shutting down the WLC2 failover works and LAP1 joins WLC4 but never joins >> back (fallback) when re-enable WLC2. >> >> I've done this many times without problems but now just doesn't wants to >> work. >> >> >> >> Any idea? >> >> >> >> Best Regards, >> >> *Christos Stefaneskou* >> >> Network Engineer >> >> >> >> [image: Description: Description: Description: Description: Description: >> Description: Description: cid:[email protected]] >> >> *[email protected] <[email protected]>* >> >> *TAC:* (+30) 2109548200 >> >> *Fax:* (+30) 2109548288 >> >> 206, Syggrou Avenue >> >> 17672 - ?allithea - Greece >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: >> >> iPexpert on YouTube: www.youtube.com/ipexpertinc > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: </archives/ccie_wireless/attachments/20140323/9d94ba3f/attachment.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: image001.jpg > Type: image/jpeg > Size: 2466 bytes > Desc: not available > URL: </archives/ccie_wireless/attachments/20140323/9d94ba3f/attachment.jpg> > > ------------------------------ > > _______________________________________________ > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > iPexpert on YouTube: www.youtube.com/ipexpertinc > > End of CCIE_Wireless Digest, Vol 59, Issue 22 > ********************************************* _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
