Alcatel-Lucent 6850-48 ネットワークガイド
Modifying IPMS Parameters
Configuring IP Multicast Switching
page 42-18
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
Enabling and Disabling IGMP Querying
By default, IGMP querying is disabled.The following subsections describe how to enable and disable
IGMP querying by using the
IGMP querying by using the
command.
Enabling the IGMP Querying
For example, to enable the IGMP querying on the system if no VLAN is specified, you would enter:
-> ip multicast querying enable
You can also enable the IGMP querying on the specified VLAN by entering:
-> ip multicast vlan 2 querying enable
Disabling the IGMP Querying
followed by the disable keyword.
For example, to disable the IGMP querying on the system if no VLAN is specified, you would enter:
-> ip multicast querying
disable
Or, as an alternative, enter:
-> ip multicast querying
To restore the IGMP querying to its default setting (i.e., disabled).
You can also disable the IGMP querying on the specified VLAN by entering:
-> ip multicast vlan 2 querying
disable
Or, as an alternative, enter:
-> ip multicast vlan 2 querying
To restore the IGMP querying to its default setting (i.e., disabled).
You can remove an IGMP querying entry on the specified VLAN and return to its default behavior by
entering:
entering:
-> no ip multicast vlan 2 querying
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
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
command.
Configuring the IGMP Robustness variable
You can modify the IGMP robustness variable from 1 to 7 on the system if no VLAN is specified, by
entering
entering
robustness to 3 you would enter:
-> ip multicast robustness 3