Command Reference Guide

564 | Internet Group Management Protocol (IGMP)
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C-Series and S-Series, unregistered multicast data traffic is dropped when flooding is
disabled; they do not forward the packets to multicast router ports. On the C-Series and
S-Series, Layer 3 multicast must be disabled (
no ip multicast-routing) in order to disable Layer 2
multicast flooding.
Syntax
ip igmp snooping flood
Defaults
Enabled
Command Modes
CONFIGURATION
Command
History
ip igmp snooping last-member-query-interval
c e s
The last member query interval is the “maximum response time” inserted into Group-Specific
queries sent in response to Group-Leave messages. This interval is also the interval between
successive Group-Specific Query messages. Use this command to change the last member
query interval.
Syntax
ip igmp snooping last-member-query-interval milliseconds
To return to the default value, enter
no ip igmp snooping last-member-query-interval.
Parameters
Defaults
1000 milliseconds
Command Modes
INTERFACE VLAN
Command
History
ip igmp snooping mrouter
c e s
Statically configure a VLAN member port as a multicast router interface.
Syntax
ip igmp snooping mrouter interface interface
Version 8.3.7.0 Introduced on S4810
Version 8.2.1.0 Introduced on the C-Series and S-Series.
Version 7.7.1.1 Introduced on E-Series.
milliseconds Enter the interval in milliseconds.
Default: 1000 milliseconds
Range: 100 to 65535
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
E-Series legacy command