I know what they are for individually, but I was wondering why IGMP is automatically enabled when PIM is enabled. My thought was that there was no need for it on router-to-router links. I believe someone on another forum gave the correct answer. Without IGMP, mtrace and mstat would not work since those tools use IGMP packets.
On Mon, Feb 28, 2011 at 4:24 AM, Manu Chao <[email protected]> wrote: > PIM is used in your Edge and Core network while IGMP is required at the Edge > and Access > > On Wed, Feb 23, 2011 at 10:24 PM, John Neiberger <[email protected]> > wrote: >> >> IGMP is enabled automatically when you enable PIM on an interface and >> I can't figure out why. I've talked to a few other engineers and no >> one can thing of why IGMP would need to be enabled on a >> router-to-router connection running PIM. My only thought was that it >> was a leftover from PIMv1, which used IGMP type 14 packets, but that's >> a total guess. >> >> Do any of you happen to know the answer to this piece of trivia? >> >> Thanks! >> John >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
