
IGMP Snooping Commands
339
Default Configuration
IGMP snooping is disabled on VLAN interfaces by default.
Command Mode
VLAN Configuration mode
User Guidelines
This command has no user guidelines.
Example
The following example enables IGMP snooping on VLAN 2.
console(config-vlan)#ip igmp snooping 2
ip igmp snooping fast-leave
This command enables or disables IGMP Snooping fast-leave mode on a
selected VLAN. Enabling fast-leave allows the switch to immediately remove
the layer 2 LAN interface from its forwarding table entry upon receiving an
IGMP leave message for that multicast group without first sending out MAC-
based general queries to the interface. The
no
form of this command disables
IGMP Snooping fast-leave mode on a VLAN.
You should enable fast-leave admin mode only on VLANs where only one host
is connected to each layer 2 LAN port. This setting prevents the inadvertent
dropping of the other hosts that were connected to the same layer 2 LAN port
but were still interested in receiving multicast traffic directed to that group.
Also, fast-leave processing is supported only with IGMP version 2 hosts.
Syntax
ip igmp snooping fast-leave
vlan-id
no ip igmp snooping fast-leave
•
vlan id
— Number assigned to the VLAN.
Default Configuration
IGMP snooping fast-leave mode is disabled on VLANs by default.
Содержание PowerConnect 6224
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Страница 256: ...256 DHCP Layer 2 Relay Commands Example console config dhcp l2relay vlan 10 340 345 ...
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Страница 386: ...386 IPv6 MLD Snooping Querier Commands MLD Version Indicates the version of MLD ...
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Страница 1036: ...1036 Tunnel Interface Commands console config interface tunnel 1 console config if tunnel1 tunnel source vlan 11 ...
Страница 1037: ...Virtual LAN Routing Commands 1037 50 Virtual LAN Routing Commands This chapter explains the following command show ip vlan ...
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