topic Re: Mobility Groups between WLCs across the WAN in Wireless

Mobility Groups between WLCs across the WAN

sivai2tech — Sun, 04 Jul 2021 06:17:45 GMT

Experts,

I have 2 sites(A&B), which are connected via a WAN connection. I have 2 WLCs at the site A(main) and have 2 WLCs at site B(branch).

Can I make the mobility groups work across the WAN for site B(in case both the WLCs go down)?

EoIP tunnel, is possible?

Thank You,

Re: Mobility Groups between WLCs across the WAN

George Stefanick — Fri, 04 Jan 2013 06:58:29 GMT

As long as you have ip connectivity you can create mobility groups across controllers. I don't know that I would do that. Keep in mind mobility messages will be shared across this link ..

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Re: Mobility Groups between WLCs across the WAN

Scott Fella — Fri, 04 Jan 2013 13:05:49 GMT

I agree with George. You only need to have mobility between the two buildings if you have roaming between the two buildings. If the buildings are far apart, then there is no need for a mobility group to be the same.

You already have two WLC's at each site, so you already have redundancy.

If you had a campy environment and the buildings are in the same campus the I might have all the WLC's in the same mobility group, but that's as long as I know that I want seamless roaming and have coverage to roam from one building to the next.

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Re: Mobility Groups between WLCs across the WAN

sivai2tech — Fri, 04 Jan 2013 13:28:06 GMT

Thanks George & Scott for your reply.

Yes, It makes sense that create seperate mobility groups for each site as each site has 2 WLC.

Thanks,

Mobility Groups between WLCs across the WAN

Saravanan Lakshmanan — Sun, 06 Jan 2013 19:18:30 GMT

my2c.

Mobility messages shared across wan link unencrypted.

wan bandwidth consumed for all mobility exchanges.

if fallback required, Add the remote WLCs on option 43/dns. on one local wlc failure if the other wlc doesn't have the enough capacity then the remaining APs go join the wlc across wan, seamless roaming doesn't happen when clients move between the APs joined on local and remote wlcs until that local wlc come backup.