Chapter 21 IGMP and Multicasting Commands
Ethernet Switch CLI Reference Guide
90
21.3 Command Examples
This example configures IGMP on the Switch with the following settings:
• Sets the Switch to flood unknown multicast frames.
• Sets the Switch to non-querier mode.
• Configures the IP interface 172.16.1.1 with subnet mask 255.255.255.0 to route IGMP
version 3 packets.
ip igmp <v1|v2|v3> Enables IGMP in this routing domain and
specifies the version of the IGMP packets
that the Switch should use.
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ip igmp robustness-variable <2-255> Sets the IGMP robustness variable on the
Switch. This variable specifies how
susceptible the subnet is to lost packets.
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ip igmp query-interval Sets the igmp query interval on the Switch.
This variable specifies the amount of time
in seconds between general query
messages sent by the router.
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ip igmp query-max-response-time <1-25> Sets the maximum time that the router
waits for a response to a general query
message.
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ip igmp last-member-query-interval <1-25> Sets the amount of time in seconds that the
router waits for a response to a group
specific query message.
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no ip igmp Disables IP IGMP in this routing domain. C 13
Table 56 IPMC Command Summary
COMMAND DESCRIPTION M P
interface port-channel <port-list> Enters config-interface mode for the
specified port(s).
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ipmc egress-untag-vlan <vlan-id> Sets the Switch to remove the VLAN tag
from IP multicast packets belonging to the
specified VLAN before transmission on this
port.
Enter a VLAN group ID in this field. Enter 0
to set the Switch not to remove any VLAN
tags from the packets.
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no ipmc egress-untag-vlan Disables the ports from removing the VLAN
tags from outgoing IP multicast packets.
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Table 55 IGMP Command Summary (continued)
COMMAND DESCRIPTION M P
sysname(config)# router igmp
sysname(config-igmp)# non-querier
sysname(config-igmp)# unknown-multicast-frame flooding
sysname(config-igmp)# exit
sysname(config)# interface route-domain 172.16.1.1/24
sysname(config-if)# ip igmp v3
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