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Specifying the maximum number of multicast groups – ATL Telecom R1-SW Ethernet Switch User Manual

Page 243

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Configuring IGMP Snooping

11-9

Specifying the Maximum Number of Multicast Groups

By default, each port of the Corecess R1-SW24L2B can belong to up to 1024 multicast groups. To
configure the maximum number of multicast groups that a port can belong to, use the following
command in Global configuration mode:

Command

Task

ip igmp snoop

group- number-limit

port

/

y

: The number of multicast groups (1 ~ 4094)

y

: Type of the port

- fastethernet: Fast Ethernet port.
- gigabitethernet: Gigabit Ethernet port.
y

/: Slot number and port number.


The following example shows how to specify the number of multicast groups for the Fast
Ethernet port 2/1 to 2048 and verify the result:

(config)# ip igmp snoop group-number-limit 2049 port fastethernet 2/1 2048

(config)# end

# show ip igmp snoop port fastethernet 2/1

Port 2/1(2/1) BridgeIndex(65) (link down) ref(2)

fast-leave (off), access-group (none)

group(s): static/dynamic/mrouter (0/0/0) limit(2048)

host(s): 0

stats : received (report/leave/query) 0/0/0

: sent (report/leave/query) 0/0/0

#

To restore the default value, enter the no ip igmp snoop group-number-limit command
in Global configuration mode.

(config)# no ip igmp snoop group-number-limit port fastethernet 2/1

(config)#