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VSI-specific configuration takes priority over the global configuration. For a VLAN, the
VLAN-specific configuration takes priority over the global configuration.
Setting the IGMP last member query interval globally
Step
1.
Enter system view.
2.
Enter IGMP-snooping view.
3.
Set the IGMP last member
query interval globally.
Setting the IGMP last member query interval in a VLAN or VSI
Step
1.
Enter system view.
2.
Enter VLAN view or VSI view.
3.
Set the IGMP last member
query interval for the VLAN or
VSI.
Configuring IGMP snooping port features
Before you configure IGMP snooping port features, complete the following tasks:
•
Enable IGMP snooping for the VLAN or VSI.
•
Determine the aging timer for dynamic router ports.
•
Determine the aging timer for dynamic member ports.
•
Determine the addresses of the multicast group and multicast source.
Setting aging timers for dynamic ports
When you set aging timers for dynamic ports, follow these restrictions and guidelines:
•
If the memberships of multicast groups frequently change, you can set a relatively small value
for the aging timer of the dynamic member ports. If the memberships of multicast groups rarely
change, you can set a relatively large value.
•
If a dynamic router port receives a PIMv2 hello message, the aging timer for the port is specified
by the hello message. In this case, the router-aging-time or igmp-snooping
router-aging-time command does not take effect on the port.
•
IGMP group-specific queries originated by the Layer 2 device trigger the adjustment of aging
timers for dynamic member ports. If a dynamic member port receives such a query, its aging
timer is set to twice the IGMP last member query interval. For more information about setting
the IGMP last member query interval on the Layer 2 device, see "Setting the IGMP last member
query interval."
•
You can set the timers globally for all VLANs and VSIs in IGMP-snooping view, for a VSI in VSI
view, or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority
over the global configuration. For a VSI, the VSI-specific configuration takes priority over the
global configuration.
Command
system-view
igmp-snooping
last-member-query-interval interva
l
Command
system-view
•
Enter VLAN view:
vlan vlan-id
•
Enter VSI view:
vsi vsi-name
igmp-snooping
last-member-query-interval interva
l
22
Remarks
N/A
N/A
The default setting is 1
second.
Remarks
N/A
N/A
The default setting is 1
second.
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Table of Contents
Troubleshooting
