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Community Member

IGMP snooping for QinQ

Most Cisco documentation suggests disabling IGMP snooping for

QinQ. However I have seen mention of a feature on the 7600 for

"IGMP snooping for QinQ ". Does anyone have any technical details on this feature or a link on where I can read more about how it works. I am particularly interested in router ports.

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4 REPLIES
Hall of Fame Super Silver

Re: IGMP snooping for QinQ

Hello Steve,

cisco feature navigator has no entry for this "IGMP snooping QinQ" I agree it could be interesting

and I cannot find it in release notes for 12.2(33)SRE

http://www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRrn.html

have you got a link mentioning it?

Hope to help

Giuseppe

Community Member

Re: IGMP snooping for QinQ

Hall of Fame Super Silver

Re: IGMP snooping for QinQ

Hello Steve,

ES 20 and other linecards are specialized linecards for metro ethernet I would say  that in this case IGMP snooping over QinQ is supported in HW by these linecards

to use them you need SUP720 3B or better

Hope to help

Giuseppe

Community Member

Re: IGMP snooping for QinQ

Giuslar,

Sorry for the delay and many thanks for your help. Unfortunately I was looking for details on how it would work technically.

Best regards

Steve

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