Modifying The Igmp Robustness Variable - Alcatel-Lucent OmniSwitch 9900 Series Network Configuration Manual

Configuring IP Multicast Switching

Modifying the IGMP Robustness Variable

The default value of the IGMP robustness variable (i.e., the variable that allows fine-tuning on a network,
where the expected packet loss is higher) is 2. The following subsections describe how to set the value of
the robustness variable and restore it with the
Configuring the IGMP Robustness variable
You can modify the IGMP robustness variable from 1 to 7 on the system if no VLAN or SPB service is
specified, by entering
IGMP robustness to 3 you would enter:
-> ip multicast robustness 3
Note. If the links are known to be lossy, then the robustness variable can be set to a higher value (7).
You can also modify the IGMP robustness variable from 1 to 7 on the specified VLAN or SPB service by
entering:
-> ip multicast vlan 2 robustness 3
-> ip multicast service 10 robustness 3
Restoring the IGMP Robustness Variable
You can restore the IGMP robustness variable to its default value on the system if no VLAN or SPB
service is specified, by entering
-> ip multicast robustness 0
Or, as an alternative, enter the following command to restore the IGMP robustness to its default value:
-> no ip multicast robustness
You can also restore the IGMP robustness variable to its default value on the specified VLAN or SPB
service by entering ip multicast robustness followed by the value 0 as shown below:
-> ip multicast vlan 2 robustness 0
-> ip multicast service 10 robustness 0
Or, as an alternative, enter the following commands To restore the IGMP robustness to its default value:
-> no ip multicast vlan 2 robustness
-> no ip multicast service 10 robustness
OmniSwitch AOS Release 8 Network Configuration Guide
ip multicast robustness
ip multicast robustness
ip multicast robustness
command.
followed by the new value. For example, to set the value of
followed by the value 0 as shown below:
December 2017
Modifying IPMS Parameters
page 25-21