Connectivity Guide

show ipv6 mld snooping mrouter
Displays the details of multicast router ports.
Syntax
show ipv6 mld snooping mrouter [vlan vlan-id]
Parameters vlan-id—(Optional) Enter the VLAN ID, ranging from 1 to 4093.
Default Not congured
Command Mode EXEC
Usage Information None
Example
OS10# show ipv6 mld snooping mrouter vlan 11
Interface Router Ports
Vlan 11 ethernet 1/1/32
Supported Releases 10.4.1.0 or later
Protocol Independent Multicast
Protocol independent multicast (PIM) is a group of multicast routing protocols that provides one-to-many and many-to-many transmission
of information. PIM uses routing information from other routing protocols and does not depend on any specic unicast routing protocol.
PIM uses any unicast routing protocol that is deployed in the network. OS10 supports the following PIM modes:
PIM sparse mode (PIM-SM)
PIM source specic multicast (PIM-SSM)
PIM terminology
Table 19. PIM terminology
Terminology Denition
Rendezvous point (RP) The RP is a single root node that the shared tree uses, called the rendezvous point.
(*, G)
(*, G) refers to an entry in the PIM table for a group.
(S, G)
(S, G) refers to an entry in the PIM table for a source and group on the RP tree (RPT).
(S, G, RPT)
(S, G, RPT) refers to an entry in the RP tree.
First hop router (FHR) The FHR is the router that is directly connected to the multicast source.
Last hop router (LHR) The LHR is the last router in the multicast path and is directly connected to the multicast
receiver.
Intermediate router A PIM router that is not an FHR, RP, or LHR.
Shared tree (RPT) The RPT is an unidirectional multicast tree whose root node is the RP.
Shortest path tree (SPT) The root node of the SPT is the multicast source. The multicast trac routes to the receiver
on the shortest path. This setup reduces network latency and trac congestion at the RP.
644 Multicast