XG700 User's Guide
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All Rights Reserved, Copyright (C) PFU LIMITED 2005-2006
5.14.4 ip snooping vlan max-group
Function
Defines the number of multicast groups which can be registered for IGMP snooping of each VLAN.
Use the no form to return to the default setup.
Prompt
xg(config)#
Command syntax
ip snooping vlan <1-4094> max-group <10-128>
no ip snooping vlan <1-4094> max-group
Parameter
vlan <1-4094>
Changes the IGMP snooping setup of the specified VLAN.
max-group <10-128>
Sets the maximum number of multicast groups which can be registered. It can be an integer of 10 to 128.
Command type
Configuration command
Default
32
Message
% Global IGMP snooping is not enabled.
Explanation
The global IGMP snooping of the XG700 is disabled.
Solution
Enable the global IGMP snooping using the “ip snooping protocol” command first, then reissue the “ip snooping
vlan” command.
% Vlan id is not found. vid=%1$
Explanation
The specified VLAN has not been created.
[[Inserted string]]%1$: VID of the specified VLAN
Solution
Create a VLAN using the “vlan” command first, then reissue the “ip snooping vlan” command.
% IGMP snooping vlan-%1$ is not enabled.
Explanation
IGMP snooping of the specified VLAN is disabled.
[[Inserted string]]%1$: VID of the specified VID
Solution
Enable the IGMP snooping of the VLAN using the “ip snooping vlan” command first, then reissue the “ip snooping
vlan max-group” command.
% More than 128 total max-group per system.
Explanation
The registration number of multicast addresses allowed on the entire system has exceeded the limit (128
addresses).
Solution
Reduce the maximum number of other VLANs using the “ip snooping vlan max-group” command, or disable the
IGMP snooping function of other VLANs.
Note
Up to 128 multicast MAC addresses can be registered on the entire system.
Therefore, if IGMP snooping is used by multiple VLANs, cares must be taken not to exceed the limit number of
multicast MAC addresses.
Example
Set the number of groups which can be registered for IGMP snooping of VLAN 2 to 50.
xg(config)# ip snooping vlan 2 max-group 50