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Cisco Catalyst Blade Switch 3030 Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands
ip igmp snooping vlan mrouter
ip igmp snooping vlan mrouter
Use the
ip igmp snooping mrouter
global configuration command to add a multicast router port or to
configure the multicast learning method. Use the
no
form of this command to return to the default
settings.
ip igmp snooping vlan
vlan-id
mrouter
{
interface
interface-id
|
learn
{
cgmp
|
pim-dvmrp
}}
no ip igmp snooping vlan
vlan-id
mrouter
{
interface
interface-id
|
learn
{
cgmp
|
pim-dvmrp
}}
Syntax Description
Defaults
By default, there are no multicast router ports.
The default learning method is
pim-dvmrp
—to snoop IGMP queries and PIM-DVMRP packets.
Command Modes
Global configuration
Command History
Usage Guidelines
VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP
snooping.
The CGMP learn method is useful for reducing control traffic.
The configuration is saved in NVRAM.
vlan-id
Enable IGMP snooping, and add the port in the specified VLAN as the
multicast router port. The range is 1 to 1001 and 1006 to 4094.
interface
interface-id
Specify the next-hop interface to the multicast router. The keywords have
these meanings:
•
gigabitethernet
interface number
—a Gigabit Ethernet IEEE 802.3z
interface.
•
port-channel
interface number—
a channel interface. The range is 0
to 48.
learn
{
cgmp
|
pim-dvmrp
}
Specify the multicast router learning method. The keywords have these
meanings:
•
cgmp
—Set the switch to learn multicast router ports by snooping on
Cisco Group Management Protocol (CGMP) packets.
•
pim-dvmrp
—Set the switch to learn multicast router ports by snooping
on IGMP queries and Protocol-Independent Multicast-Distance Vector
Multicast Routing Protocol (PIM-DVMRP) packets.
Release
Modification
12.2(25)SEE
This command was introduced.