Configuration Guide User guide

1510 FastIron Configuration Guide
53-1002494-02
Displaying IGMP snooping information
Displaying IGMP snooping information by VLAN
You can display IGMP snooping information for all VLANs or for a specific VLAN. For example, to
display IGMP snooping information for VLAN 70, enter the show ip multicast vlan number
command.
Syntax: show ip multicast vlan [<vlan-id>]
If you do not specify a <vlan-id>, information for all VLANs is displayed.
The following table describes the information displayed by the show ip multicast vlan command.
Displaying querier information
You can use the show ip multicast vlan command to display the querier information for a VLAN. This
command displays the VLAN interface status and if there is any other querier present with the
lowest IP address. The following list provides the combinations of querier possibilities:
• Active interface with no other querier present
• Passive interface with no other querier present
• Active interface with other querier present
• Passive interface with other querier present
Field Description
version The IGMP version number
query-t How often a querier sends a general query on the interface.
group-aging-t The number of seconds membership groups can be members of this group before aging out.
rtr-port The router ports which are the ports receiving queries. The display router ports:
0/1/13(140) 1.1.70.3 means port 0/1/13 has a querier with 1.1.70.3 address, and a
remaining life of 140 seconds.
max-resp-t The maximum number of seconds a client waits before it replies to the query.
non-QR Indicates that the port is a non-querier.
QR Indicates that the port is a querier.
dft
The IGMP version for the specified VLAN. In this example, VL70: dft V2 indicates that the
default IGMP version V2 is set for VLAN 70.
Brocade# show ip multicast vlan 70
version=2, query-t=30, group-aging-t=140, max-resp-t=3, other-qr-present-t=63
VL70: dft V2, vlan cfg passive, , pimsm (vlan cfg), track, 0 grp, 1 (*G) cache,
rtr ports,
router ports: 0/1/13(140) 1.1.70.3, 0/1/20(180) 1.1.70.2, 0/1/14(180)
0/1/13 has 0 groups, non-QR (passive), default V2
0/1/14 has 0 groups, non-QR (passive), default V2
0/1/20 has 0 groups, non-QR (passive), default V2