I am trying to get some clarification on how Multicasting works on the same segment. We have a 3620 router with IGMP Version 1, CGMP, and PIM enabled. The switches are 3548 and 3524's with CGMP enabled. The servers and hosts are all on the same segment.
When we run an Multicast application 'ImageCast'disk cloning software, the traffic is going to the switched ports that have joined the Multicast group as well as the router ethernet port. Which is in turn saturating the router.
My question would be, is this normal behavior for Multicasting or do we have a configuration issue.
First of all, in LAN enviroment you dont need use PIM. PIM is a protocol nessesary when you are distribuing Multicast traffic across many subnet. Second, the problem with router that is receiving multicast traffic, you can avoid enabling "IGMP snooping" in your switches, in this way the switch "snoop" who is requesting the stream and save this information in its CAM table, and then send it, to the only the port that make the request(not all ports, including the router port), in this case will be very weird that the router request the stream, unless you have a link in the router that have conected other clients or subnets on the other side of the link.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
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