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need info on igmp snooping

hi..... actually.....how do catalyst switches distinguish igmp control trafiic from multicast data traffic? plaese explain.... thanks in advance ! !

Reply to
cheeku
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IGMP is IP protocol 2. Multicast data is often carried in UDP (IP protocol 17).

See rfc 1700 (which is obsolete but for sure 2 and

17 have not been re-assigned) section "Assigned Internet Protocol Numbers".

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The current official numbers are here:-
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Reply to
Bod43

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