mld-snooping host-aging-time
Use mld-snooping host-aging-time to set the aging timer for dynamic member ports in a VLAN or VSI.
Use undo mld-snooping host-aging-time to restore the default.
Syntax
mld-snooping host-aging-time seconds
undo mld-snooping host-aging-time
Default
The aging timer for dynamic member ports is 260 seconds.
Views
VLAN view
VSI view
Predefined user roles
network-admin
Parameters
seconds: Specifies an aging timer for dynamic member ports, in the range of 1 to 8097894 seconds.
Usage guidelines
You must enable MLD snooping for a VLAN or VSI before you execute this command.
You can set the timer for a VLAN in VLAN view, for a VSI in VSI view, or globally for all VLANs and VSIs in MLD-snooping 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.
To avoid mistakenly deleting IPv6 multicast group members, set the aging timer for dynamic member ports to be greater than the value calculated by using the following formula:
[ MLD general query interval ] + [ maximum response time for MLD general queries ]
As a best practice, set the aging timer of dynamic member ports to the value calculated by using the following formula:
[ MLD general query interval ] × 2 + [ maximum response time for MLD general queries ]
Examples
# In VLAN 2, enable MLD snooping, and set the aging timer for dynamic member ports in the VLAN to 300 seconds.
<Sysname> system-view [Sysname] mld-snooping [Sysname-mld-snooping] quit [Sysname] vlan 2 [Sysname-vlan2] mld-snooping enable [Sysname-vlan2] mld-snooping host-aging-time 300
# In VSI aaa, enable MLD snooping, and set the aging timer for dynamic member ports in the VSI to 300 seconds.
<Sysname> system-view [Sysname] mld-snooping [Sysname-mld-snooping] quit [Sysname] vsi aaa [Sysname-vsi-aaa] mld-snooping enable [Sysname-vsi-aaa] mld-snooping host-aging-time 300
Related commands
enable (MLD-snooping view)
host-aging-time (MLD-snooping view)
mld-snooping enable