Management Guide
CLI
TigerAccess™ EE
SMC7824M/VSW
365
Multicast Router Port Learning
Multicast router ports are added to the forwarding table for every Layer 2 multicast entry.
The switch dynamically learns those ports through snooping on PIM hello packets.
To enable the switch to learn multicast router ports through PIM hello packets, use the fol-
lowing command.
Command Mode
Description
ip igmp snooping mrouter learn
pim
Enables to learn multicast router ports through PIM
hello packets globally.
ip igmp snooping vlan
VLANS
mrouter learn pim
Global
Enables to learn multicast router ports through PIM
hello packets on a VLAN.
VLANS: VLAN ID (1-4094)
Multicast Router Port Forwarding
The multicast traffic should be forwarded to IGMP snooping membership ports and multi-
cast router ports because the multicast router needs to receive muticast source informa-
tion. To enable the switch to forward the traffic to multicast router ports, use the following
command.
Command Mode
Description
ip multicast mrouter-pass-
through
Enables to forward multicast traffic to the multicast
router ports.
no ip multicast mrouter-pass-
through
Global
Disables to forward multicast traffic to the multicast
router ports.
To disable the switch to learn multicast router ports through PIM hello packets, use the
following command.
Command Mode
Description
no ip igmp snooping mrouter
learn pim
no ip igmp snooping vlan
VLANS
mrouter learn pim
Global
Disables to learn multicast router ports through PIM
hello packets.
Displaying Multicast Router Port
To display a current multicast router port for IGMP snooping, use the following command.
Command Mode
Description
show ip igmp snooping mrouter
Shows a current multicast router port for IGMP snoop-
ing globally.
show ip igmp snooping vlan
VLANS
mrouter
Enable
Global
Bridge
Shows a current multicast router port for IGMP snoop-
ing on a specified VLAN.
VLANS: VLAN ID (1-4094)
Summary of Contents for 7724M/VSW - annexe 1
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