PROTECTION SWITCHING OVER A VIRTUAL LINK AGGREGATION

摘要

One embodiment of the present invention provides a switch. The switch comprises one or more ports and a link management module. The link management module operates a first aggregate link group as an active aggregate link group of a protected virtual link aggregation. This protected virtual link aggregation operates as a single logical channel. An aggregate link group comprises a plurality of logically aggregated links. The first aggregate link group, which represents the logical channel, comprises at least a first port of the one or more ports of the switch. The link management module also operates a second aggregate link group of the protected virtual link aggregation as a standby for the first aggregate link group. The second aggregate link group comprises at least a second port of the one or more ports of the switch. Forwarding is enabled via the first port and disabled via the second port.

主权项

1. A switch, comprising:
a link management module configured to:
operate a protected virtual link aggregation group comprising a first and a second aggregate link groups as a protected logical channel, and wherein an aggregate link group comprises a plurality of aggregated links operating as a logical channel;operate the first aggregate link group as an active logical channel representing the protected logical channel; andoperate the second aggregate link group as a standby logical channel in the protected virtual link aggregation group; and a forwarding module configured to:
encapsulate a packet received via the protected virtual link aggregation with an encapsulation header; andassign a virtual switch identifier as an ingress identifier of the encapsulation header, wherein the virtual switch identifier is associated with the first and the second aggregate link groups.