BigIron RX Series Configuration Guide 593
53-1002253-01
IGMP v3
23
Displaying the IGMP status of an interface
You can display the status of a multicast enabled port by entering a command such as the
following:
Syntax: show ip igmp interface [ve | ethernet <number> <group-address>]
Enter ve and its <number> or ethernet and its <number> to display information for a specific
virtual routing interface or ethernet interface.
Static A “yes” entry in this column indicates that the multicast group was configured
as a static group; “No” means it was not. Static multicast groups can be
configured in IGMP V2 using the ip igmp static command. In IGMP V3, static
sources cannot be configured in static groups.
Querier “Yes” means that the port is a querier port; “No” means it is not. A port
becomes a non-querier port when it receives a query from a source with a
lower source IP address than the port.
Life Shows the number of seconds the interface can remain in exclude mode. An
exclude mode changes to include mode if it does not receive an "IS_EX" or
"TO_EX" message during a certain period of time. The default is 140 seconds.
There is no “life” displayed in include mode.
Mode Indicates current mode of the interface: Include or Exclude. If the interface is
in Include mode, it admits traffic only from the source list. If an interface is in
Exclude mode, it denies traffic from the source list and accepts the rest.
#_src Identifies the source list that will be included or excluded on the interface.
If IGMP V2 group is in Exclude mode with a #_src of 0, the group excludes
traffic from 0 (zero) source list, which means that all traffic sources are
included.
Group If you requested a detailed report, the following information is displayed:
• The multicast group address
• The mode of the group
• A list of sources from which traffic will be admitted (include) or denied
(exclude) on the interface is listed.
• The life of each source list.
If you requested a tracking report, the clients from which reports were
received are identified.
This field Displays
BigIron RX# show ip igmp interface
query interval = 60, max response time= 3, group membership time=140
v5: default V2, PIM dense, addr=1.1.1.2
e4/12 has 0 groups, non-Querier (age=40), default V2
v18: default V2, DVMRP, addr=2.2.2.1
e4/20 has 0 groups, Querier, default V2
v20: configured V3, PIM dense (port down), addr=1.1.20.1
v110: configured V3, PIM dense, addr=110.110.110.1
e4/6 has 2 groups, Querier, default V3
group: 239.0.0.1, exclude, life=100, deny 13
group: 224.1.10.1, include, permit 2
e4/5 has 3 groups, Querier, default V3
group: 224.2.2.2, include, permit 100
group: 239.0.0.1, include, permit 10
group: 224.1.10.1, include, permit 1
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