Ip Igmp Limit - Allied Telesis AT-IX5-28GPX Manual

IGMP IGMP S C
AND NOOPING OMMANDS

IP IGMP LIMIT

ip igmp limit
Overview Use this command to configure the limit on the maximum number of group
membership entries for the device as a whole or for the specified interface (if in
interface mode). Once the specified number of group memberships is reached, all
further membership reports will be ignored. Optionally, you can configure an
access-list to stop certain addresses from being subject to the limit.
The limit is dependent on the MTU (Maximum Transmission Unit) of the interface,
which is the size in bytes of the largest packet that a network protocol can transmit.
Typically for an Ethernet channel with an MTU of 1500 the igmp group
membership limit will be 183 groups, because each igmp group membership is 8
bytes.
Use the no variant of this command to unset the limit and any specified exception
access-list.
Syntax
ip igmp limit <limitvalue> [except
{<access-list-number>|<access-list-number-expanded>|<access-li
st-name>}]
no ip igmp limit
Default The default limit, which is reset by the no variant of this command, is the same as
maximum number of group membership entries that can be learned with the ip
igmp limit command.
The default limit of group membership entries that can be learned is 512 entries.
Mode Global Configuration and Interface Configuration for a VLAN interface.
Usage This command applies to interfaces configured for IGMP, IGMP Snooping, or IGMP
Proxy.
Examples The following example configures an IGMP limit of 100 group membership entries
across all interfaces on which IGMP is enabled, and excludes group 224.1.1.1
from this limitation:
awplus#
awplus(config)#
awplus(config)#
744 Command Reference for AT-IX5-28GPX High Availability, High Power Video Surveillance PoE Switch
Parameter
<limitvalue>
<access-list-number>
<access-list-number-expanded> Access-list number (expanded range), in
<access-list-name>
configure terminal
access-list 1 permit 224.1.1.1 0.0.0.0
ip igmp limit 100 except 1
AlliedWare Plus™ Operating System - Version 5.4.5-0.x
Description
<2-512> Maximum number of group
membership entries.
Access-list number, in the range <1-99>.
the range <1300-1999>.
Standard IP access-list name.
C613-50057-01 REV A