C
HAPTER
39
| Multicast Filtering Commands
IGMP (Layer 3)
– 946 –
show ip igmp
interface
This command shows multicast information for the specified interface.
SYNTAX
show ip igmp interface [interface]
interface
vlan vlan-id - VLAN ID. (Range: 1-4093)
DEFAULT SETTING
None
COMMAND MODE
Privileged Exec
EXAMPLE
The following example shows the IGMP configuration for VLAN 1, as well as
the device currently serving as the IGMP querier for active multicast
services on this interface.
Console#show ip igmp interface vlan 1
Vlan 1 : up
IGMP : Disabled
IGMP Version : 2
IGMP Proxy : Enabled
IGMP Unsolicited-report-interval : 400 sec
Robustness variable : 2
Query Interval : 125 sec
Query Max Response Time : 100 (resolution in 0.1 sec)
Last Member Query Interval : 10 (resolution in 0.1 sec)
Group mode In INCLUDE mode, reception of packets sent to the specified
multicast address is requested only from those IP source
addresses listed in the source-list parameter. In EXCLUDE mode,
reception of packets sent to the given multicast address is
requested from all IP source addresses except for those listed in
the source-list parameter, and where the source timer status has
expired. Note that EXCLUDE mode does not apply to SSM
addresses.
Last Reporter The IP address of the source of the last membership report
received for this multicast group address on this interface.
Group Source List A list of zero or more IP unicast addresses from which multicast
reception is desired or not desired, depending on the filter mode.
Source Address The address of one of the multicast servers transmitting traffic to
the specified group.
Uptime The time elapsed since this entry was created.
v3 Exp The time remaining before this entry will be aged out. The V3 label
indicates that the expire time is only provided for sources learned
through IGMP Version 3. (The default is 260 seconds.)
Fwd Indicates whether or not traffic will be forwarded from the
multicast source.
Table 122: show ip igmp groups detail - display description
Field Description
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