Hi all, I am trying to find out how "IGMP snooping does not constrain Layer 2 multicasts generated by routing protocols."
What is the mechanism by which switches are able to say "yes, you are routing traffic - IGMP snooping rules don't apply" given that they are limited to reading L2 headers? I understand the multicast IP to MAC translation but the last 23 bits of an IP address does not cover the critical first octet (224), hence, in my eyes the switch still has no way of knowing whether the packet is a routing protocol or not? Thanks for your help, Andres _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
