Alcatel-Lucent 6850-48 参考指南

IP Multicast Switching Commands

OmniSwitch CLI Reference Guide

page 55-37

Sets the IGMP robustness variable on the specified VLAN or on the system if no VLAN is specified.

ip multicast [vlan vid] robustness [robustness]

VLAN on which to apply the configuration.

IGMP robustness variable. Valid range is 1 to 7.

OmniSwitch 6400, 6850, 6855, 9000, 9000E

• IP Multicast Switching and Routing must be enabled to set the IGMP robustness variable on the system 

and/or the specified VLANs.

• If the IGMP robustness variable is already configured on the system, then the VLAN configuration will 

override the system's configuration.

• Robustness variable allows fine-tuning on the network, where the expected packet loss would be 

greater.

• To restore the IGMP robustness variable to its default (i.e., 2) value on the system if no VLAN is spec-

ified, use ip multicast robustness followed by the value 0 (e.g., ip multicast robustness 0) or use only
ip multicast robustness (e.g., ip multicast robustness).

• To restore the IGMP robustness variable to its default (i.e., 2) value on the specified VLAN, use

ip multicast vlan vid robustness followed by the value 0 (e.g., ip multicast vlan 2 robustness 0) or use 
only ip multicast vlan vid robustness (e.g., ip multicast vlan 2 robustness).

-> ip multicast robustness 3

-> ip multicast robustness 0

-> ip multicast robustness

-> ip multicast vlan 2 robustness 3

-> ip multicast vlan 2 robustness 0

-> ip multicast vlan 2 robustness

Release 6.1.1; command was introduced.

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