Install guide
IP Multicasting show ip igmp 91
show ip igmp
Syntax SHow IP IGMP [INTerface=interface] [DEStination=ipadd]
where:
■ interface is an interface name formed by concatenating a Layer 2 interface
type, an interface instance, and optionally a hyphen followed by a logical
interface number from 0 to 15. If a logical interface is not specified, 0 is
assumed.
■ ipadd is an IGMP multicast group address in dotted decimal notation.
Description This command displays general information about IGMP and the IGMP
configuration on each IP interface (Figure 8 on page 91, Table 5 on page 92).
If an interface is specified, information is displayed only for that interface.
Valid interfaces are:
■ VLAN (such as vlan1, vlan1-1)
If a destination address is specified, information is displayed only for
interfaces that have a multicast group membership matching the destination
address. Any of the four octets of the IP address may be replaced by an asterix
(*) to enable wildcard matches, for example 224.*.*.*.
Figure 8: Example output from the show ip igmp command
IGMP Protocol
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Status ........................... Enabled
Default Query Interval ........... 125 secs
Default Timeout Interval ......... 260 secs
Last Member Query Interval ....... 10 (1/10secs)
Last Member Query Count .......... 2
Robustness Variable .............. 2
Query Response Interval .......... 100 (1/10secs)
Disabled All-groups ports ........ 1,5,7
Interface Name ..................... vlan1 (DR)
Status ............................. Enabled
Other Querier timeout .............. 164 secs
IGMP Proxy ......................... Upstream
General Query Reception Timeout .... None
Group List .........................
Group. 224.0.1.22 Last Adv. 10.194.254.254 Refresh time 184 secs
Ports 24
Group. 224.0.1.22 Static association Refresh time Infinity
Ports 11-14,17,19
Static Ports 17,19
All Groups Last Adv. 10.116.2.1 Refresh time 254 secs
Ports 24
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