topic Re: AP Multicast Mode in Wireless

AP Multicast Mode

shawntls82 — Sun, 04 Jul 2021 08:01:36 GMT

Hi,

In an environment with two active WLC, if the AP multicast mode need to be enabled, the multicast address for both WLC need to be same address or both should use different address?

Thanks

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AP Multicast Mode

Rasika Nayanajith — Mon, 07 Oct 2013 04:08:44 GMT

You should never use the same multicast group address in two differnet controller. Always use unique group address in each controller

HTH

Rasika

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Re: AP Multicast Mode

shawntls82 — Mon, 07 Oct 2013 04:58:06 GMT

Hi Rasika,

Thanks for the info, I'll try that out

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Re: AP Multicast Mode

Sandeep Choudhary — Mon, 07 Oct 2013 13:05:03 GMT

HI Schwan,

Yes, Rasika is right

it is recommended that each controller in the network is configured with a different multicast group IP. The reason is because we want to avoid the multicast traffic on one controller flooding to all other controllers and APs in the network. The multicast group IP configured should be local only to one WLC and the APs registered to it.

Regards

Re: AP Multicast Mode

George Stefanick — Tue, 08 Oct 2013 02:56:15 GMT

Plus 5 Ras !

When you share multicast ips with controllers you increase the size of that multicast ip domain .. Not good ... Let them be different .. It's ok .. Lol

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Re: AP Multicast Mode

shawntls82 — Tue, 08 Oct 2013 07:22:10 GMT

Thanks all for the info, by the way do I need to enable multicast at switches as well?

Thanks.

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Re: AP Multicast Mode

Rasika Nayanajith — Tue, 08 Oct 2013 08:49:59 GMT

Yes, if you are using multicast mode for WLC to AP communication then you have to enable multicast in your switch network where WLC & AP connected to.

HTH

Rasika

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Re: AP Multicast Mode

Rasika Nayanajith — Tue, 08 Oct 2013 08:50:28 GMT

Thanks George...

Re: AP Multicast Mode

Abhishek Abhishek — Wed, 09 Oct 2013 22:16:55 GMT

Yes, it is right. You must use two multicast address group for 2 WLC's.