Command Line Interface
9551553-KDU 137 365 Uen D 2006-06-16
Command Usage
The robustness value is used in calculating the appropriate range for other
IGMP variables, such as
the Group Membership Interval (
ip igmp last-
memb-query-interval
, page 957)
, as well as the Other Querier Present
Interval, and the Startup Query Count (RFC 2236).
Example
7.21.17 ip igmp query-interval
This command configures the frequency at which host query messages are
sent. Use the no form to restore the default.
Syntax
ip igmp query-interval <seconds>
no ip igmp query-interval
seconds - The frequency at which the ECN330-switch sends IGMP
host-query messages. (Range: 1-255)
Default Setting
125 seconds
Command Mode
Interface Configuration (VLAN)
Command Usage
• Multicast routers send host query messages to determine the interfaces
that are connected to downstream hosts requesting a specific multicast
service. Only the designated multicast router for a subnet sends host
Console(config-if)#ip igmp robustval 3
Console(config-if)#
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