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Vlan Mode
7.20.2 set igmp fast-leave
This command enables or disables IGMP Snooping fast-leave admin mode on a selected interface or 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.
Fast-leave admin mode should be enabled only on VLANs where only one host is connected to each layer 2
LAN port, to prevent the inadverdent 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.
Default
disable
Format
set igmp fast-leave<vlanId>
Modes
Interface Config
Vlan Mode
7.20.2.1 no set igmp fast-leave
This command disables IGMP Snooping fast-leave admin mode on a selected interface.
Format
no set igmp fast-leave<vlanId>
Modes
Interface ConfigVlan Mode
7.20.3 show igmpsnooping
This command displays IGMP Snooping information. Configured information is displayed whether or not IGMP
Snooping is enabled.
Format
show igmpsnooping[<
unit/slot/port
> |
<
vlanId>
]
Mode
Privileged EXEC
This display parameters when the optional arguments ‘<unit/slot/port
>
‘ or ‘<vlanId>’ are not used are as
follows:
Admin Mode
This indicates whether or not IGMP Snooping is active on the switch.
Interfaces Enabled for IGMP Snooping
This is the list of interfaces on which IGMP Snooping
is enabled.
Multicast Control Frame Count
This displays the number of multicast control frames that are
processed by the CPU.
Data Frames Forwarded by the CPU
This displays the number of data frames that are forwarded
by the CPU.
VLANS Enabled for IGMP Snooping
This is the list of VLANS on which IGMP Snooping
is enabled.
Additional display parameters when the argument is ‘unit/slot/port’ are as follows:
Summary of Contents for DN-80233
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Page 149: ...148 Default 0 Format vlan priority priority Mode Interface Config ...
Page 224: ...223 Mode Class Map Config ...