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Cisco Catalyst Blade Switch 3030 Command Reference
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Chapter 2 Cisco
Catalyst
Blade Switch 3030 Cisco IOS Commands
show ip igmp snooping querier
show ip igmp snooping querier
Use the
show ip igmp snooping
querier detail
user EXEC
command to display the configuration and
operation information for the IGMP querier configured on a switch.
show ip igmp snooping querier
[
detail
|
vlan
vlan-id
[
detail
]] [ | {
begin
|
exclude
|
include
}
expression
]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
Use the
show ip igmp snooping querier
command to display the IGMP version and the IP address of a
detected device, also called a
querier
, that sends IGMP query messages. A subnet can have multiple
multicast routers but has only one IGMP querier. In a subnet running IGMPv2, one of the multicast
routers is elected as the querier. The querier can be a Layer 3 switch.
The
show ip igmp snooping querier
command output also shows the VLAN and the interface on which
the querier was detected. If the querier is the switch, the output shows the
Port
field as
Router.
If the
querier is a router, the output shows the port number on which the querier is learned in the
Port
field.
The
show ip igmp snooping querier detail
user EXEC command is similar to the
show ip igmp
snooping querier
command. However, the
show ip igmp snooping querier
command displays only the
device IP address most recently detected by the switch querier.
The
show ip igmp snooping querier detail
command displays the device IP address most recently
detected by the switch querier and this additional information:
•
The elected IGMP querier in the VLAN
•
The configuration and operational information pertaining to the switch querier (if any) that is
configured in the VLAN
Expressions are case sensitive. For example, if you enter
| exclude output
, the lines that contain
output
do not appear, but the lines that contain
Output
appear.
detail
Optional) Display detailed IGMP querier information.
vlan
vlan-id
[
detail
]
Optional) Display IGMP querier information for the specified VLAN. The
range is 1 to 1001 and 1006 to 4094. Use the
detail
keyword to display
detailed information.
| begin
(Optional) Display begins with the line that matches the
expression
.
| exclude
(Optional) Display excludes lines that match the
expression
.
| include
(Optional) Display includes lines that match the specified
expression
.
expression
Expression in the output to use as a reference point.
Release
Modification
12.2(25)SEE
This command was introduced.