TECHNIQUES TO RESTORE MULTICAST DATA PLANE FROM PERSISTENT STORAGE

摘要

One embodiment of the present invention provides a switch. The switch includes a multicast management module, a storage module, and a recovery module. During operation, the multicast management module represents multicast information from one or more entries of a multicast data structure in a way that the switch can derive its multicast states from the multicast information. The storage module stores the multicast information in a recovery file in a local persistent storage device. If the switch reboots, the recovery module restores the multicast states of the switch from the multicast information in the recovery file.

主权项

1. A switch, comprising:
a multicast management module configured to represent multicast information from one or more entries of a multicast data structure in a way that multicast states of the switch are derivable from the multicast information; a storage module configured to store the multicast information in a recovery file in a local persistent storage device; and a recovery module configured to, in response to detecting the switch rebooting, restore the multicast states of the switch from the multicast information in the recovery file.