24-Port Layer 3 Switch Management Guide

M ULTICAST R OUTING C OMMANDS
4-285
Multicast Routing Commands
This router uses IGMP snooping and query to determine the ports
connected to downstream multicast hosts, and to propagate this
information back up through the multicast tree to ensure that requested
services are forwarded through each intermediate node between the
multicast server and its hosts, and also to filter traffic from all of the other
interfaces that do not require these services.
Multicast routers use snooping and query messages, along with a multicast
routing protocol to deliver IP multicast packets across different
subnetworks. This router supports both the Distance-Vector Multicast
Routing Protocol (DVMRP) and Protocol Independent Multicasting
(PIM). (Note that you should enable IGMP for any interface that is using
multicast routing.)
Static Multicast Routing Commands
Command Groups Function Page
Static Multicast
Routing
Configures static multicast router ports 4-285
General Multicast
Routing
Enables IP multicast routing globally; also
displays the IP multicast routing table created
from static and dynamic routing information
4-287
DVMRP Multicast
Routing
Configures global and interface settings for
DVMRP
4-290
PIM-DM Multicast
Routing
Configures global and interface settings for
PIM-DM
4-301
Command Function Mode Page
ip igmp snooping
vlan mrouter
Adds a multicast router port GC 4-286
show ip igmp
snooping mrouter
Shows multicast router ports PE 4-287