Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
ip igmp snooping vlan mrouter
ip igmp snooping vlan mrouter
Use the ip igmp snooping mrouter global configuration command on the switch stack or on a
standalone switch 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.
• tengigabitethernet interface number—a 10-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(53)SE2 This command was introduced.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing