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DCS-3950 series Ethernet switch manual
Command mode: Global Mode
Default: IGMP Snooping is disabled by default.
Usage Guide: When number of joined group reaches the limit, new group requesting for
joining in will be rejected for preventing hostile attacks. To use this command, IGMP
snooping must be enabled on vlan. The ‘no’ form of this command restores the default
other than set to ‘no limit’. For the safety considerations, this command will not be
configured to ‘no limit’. It is recommended to use default value and if layer 3 IGMP is in
operation, please make this configuration in accordance with the IGMP configuration as
possible.
Example:
Switch(config)#ip igmp snooping vlan 2 limit group 300
11.2.2.6 ip igmp snooping vlan mrouter-port interface
Command: ip igmp snooping vlan <vlan-id> mrouter-port interface
(<ehternet>|<ifname>|<port-channel>)
no ip igmp snooping vlan <vlan-id> mrouter-port interface
(<ehternet>|<ifname>|<port-channel>)
Function: Configure static mrouter port of vlan. The ‘no ip igmp snooping vlan
<vlan-id> mrouter-port interface (<ehternet>|<ifname>|<port-channel>)’ command
cancels this configuration
Parameters: vlan-id: ranging between <1-4094>
ehternet: Name of Ethernet port
ifname: Name of interface
port-channel: Port aggregation
Command mode: Global Mode
Default: No static mrouter port on vlan by default.
Usage Guide: When a port is a static mrouter port while also a dynamic mrouter port, it
should be taken as a static mrouter port. Deleting static mrouter port can only be realized
by the ‘no ip igmp snooping vlan <vlan-id> mrouter-port interface
[<ehternet>|<port-channel>]<ifname>‘ command.
Example:
Switch(config)#ip igmp snooping vlan 2 mrouter-port interface ethernet0/0/13
11.2.2.7 ip igmp snooping vlan mrpt
Command: ip igmp snooping vlan <vlan-id> mrpt <value>
no ip igmp snooping vlan <vlan-id> mrpt
Function: Configure this survive time of mrouter port
Parameters: vlan-id: vlan id , ranging between <1-4094>
value: mrouter port survive period, ranging between <1-65535>seconds
Command mode: Global Mode
Default: 255s
Usage Guide: This command validates on dynamic mrouter ports but not on mrouter port.
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