Show Ipv6 Mld Snooping Querier - Cisco Catalyst 4500 Series Command Reference Manual

show ipv6 mld snooping querier

show ipv6 mld snooping querier
To display IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping querier-related
information most recently received by the switch or the VLAN, use the show ipv6 mld snooping
querier command.
Syntax Description vlan vlan-id
Command Modes
User EXEC mode
Command History Release
12.2(40)SG
Usage Guidelines
Use the show ipv6 mld snooping querier command to display the MLD version and IPv6 address of a
detected device that sends MLD query messages, which is also called a querier. A subnet can have
multiple multicast switches but has only one MLD querier. The querier can be a Layer 3 switch.
The show ipv6 mld snooping querier command output also shows the VLAN and 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 output of the show ipv6 mld snoop querier vlan command displays the information received in
response to a query message from an external or internal querier. It does not display user-configured
VLAN values, such as the snooping robustness variable on the particular VLAN. This querier
information is used only on the MASQ message that is sent by the switch. It does not override the
user-configured robustness variable that is used for aging out a member that does not respond to query
messages.
VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used
in MLD snooping.
Examples This is an example of output from the show ipv6 mld snooping querier command:
Switch> show ipv6 mld snooping querier
Vlan
-------------------------------------------------------------
2
This is an example of output from the show ipv6 mld snooping querier vlan command:
Switch> show ipv6 mld snooping querier vlan 2
IP address : FE80::201:C9FF:FE40:6000
MLD version : v1
Port : Gi3/0/1
Max response time : 1000s
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
2-752
show ipv6 mld snooping querier [vlan vlan-id]
(Optional) Specifiesa VLAN; the range is 1 to 1001 and 1006 to 4094.
Modification
This command was introduced on the Catalyst 4500.
IP Address
FE80::201:C9FF:FE40:6000 v1
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
MLD Version Port
Gi3/0/1
OL-25342 -01