mld fast-leave
Use mld fast-leave to enable fast-leave processing on an interface.
Use undo mld fast-leave to disable fast-leave processing on an interface.
Syntax
mld fast-leave [ group-policy ipv6-acl-number ]
undo mld fast-leave
Default
Fast-leave processing is disabled. The MLD querier sends MLD multicast-address-specific or multicast-address-and-source-specific queries after receiving a done message.
Views
Interface view
Predefined user roles
network-admin
mdc-admin
Parameters
ipv6-acl-number: Specifies an IPv6 basic ACL by its number in the range of 2000 to 2999. If you specify an ACL, the fast-leave processing feature takes effect only on the IPv6 multicast groups that the ACL permits. The feature takes effect on all IPv6 multicast groups when one of the following conditions exists:
You do not specify an ACL.
The specified ACL does not exist.
The specified ACL does not have valid rules.
Usage guidelines
The fast-leave processing feature enables an MLD querier to suppress MLD multicast-address-specific or multicast-address-and-source-specific queries upon receiving MLD done messages permitted by the ACL.
When you configure a rule in the IPv6 basic ACL, follow these restrictions and guidelines:
For the rule to take effect, do not specify the vpn-instance vpn-instance option.
The source source-address source-prefix option specifies an IPv6 multicast group address.
Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.
Examples
# Enable fast-leave processing on VLAN-interface 100.
<Sysname> system-view [Sysname] interface vlan-interface 100 [Sysname-Vlan-interface100] mld fast-leave