20.
IGMP Snooping
MN700004 Rev 01
250
Command Syntax
device-name
(config)#
ip igmp snooping send-query vlan
<
vlan-id
>
interface
PORT-LIST
[
group
A.B.C.D
] [
query-interval
<
query-interval-value
>]
[
response-time
<
response-time-value
>]
device-name
(config)#
no ip igmp snooping send-query vlan
<
vlan-id
>
interface
PORT-LIST
Argument Description
vlan <vlan-id>
Query VLAN tag number in range <1-4094>.
interface PORT-LIST
Query port list distribution.
group A.B.C.D
(Optional) Specifies the group IP (in format A.B.C.D) to which to generate
query. The query may be specific or general. By default, all Router Query
(224.0.0.1)
query-interval <query-
interval-value>
(Optional) Specifies the interval between queries in seconds, in the range
<1-300>. By default the value is 120 seconds.
response-time
<response-time-value>
(Optional) Specifies the host response timeout, in seconds, to set the
query frame, in the range <1-25>. By default the value is 10 seconds.
NOTE
The configured response timeout value is specified in seconds, but the value inserted in the
packet is in 1/10 second units.
Example
The following example shows how to set the general query packet every 5 seconds in VLAN
5 interface 1/1/1 with response timeout of 15 seconds:
device-name
(config)#
ip igmp snooping send-query vlan 5 interface 1/1/1
query-interval 5 response-time 15
Commands to Display IGMP Snooping Information
You can display IGMP snooping information for dynamically learned and statically
configured router ports and VLAN interfaces. You can also display MAC address multicast
entries for a VLAN configured for IGMP snooping.
show ip igmp snooping
The s
how ip igmp snooping
command, in Privileged (Enable) mode, displays snooping
configuration information for the switch or for a specified VLAN.
Command Syntax
device-name
#
show ip igmp snooping [vlan
vlan-id
]