To rapidly restore the Layer 2 multicast services on a PW when the PW goes Down and then Up, delay or disable the deletion of the Layer 2 multicast forwarding entries when the PW goes Down.
All Layer 2 multicast forwarding entries of a PW outbound interface are deleted after the PW goes Down. The services can be restored only after the PW goes Up and the entries are re-created. To ensure that Layer 2 multicast services are not interrupted or are interrupted for less than 50 ms during PW re-establishment, configure fast restoration for services on PWs by delaying or disabling the deletion of Layer 2 multicast forwarding entries of PW outbound interfaces when PWs go Down.
The system view is displayed.
The VSI view is displayed.
Fast restoration is configured for Layer 2 multicast services on PWs.
The configuration is committed.
Run the display current-configuration | include l2-multicast pw-fast-control command to check whether fast restoration is configured for Layer 2 multicast services on PWs.
<HUAWEI> display current-configuration | include l2-multicast pw-fast-control
l2-multicast pw-fast-control holdtime 20