Patent ID: 9647878
Date: 2017-05-09
CPC Classifications: H04L

Claim:
1. An announcement method, comprising: an announcement node configuring sending ports of the announcement node in a first network region and a second network region, wherein, different network protection switching technologies applied in the first network region and in the second network region; the announcement node acquiring a protection switching request sent from the first network region; and the announcement node sending the protection switching request to the second network region through a sending port corresponding to the second network region, wherein, a post-switching link state of the first network region is contained in the protection switching request, and under a situation that a source node of the first network region in the post-switching link state is inconsistent with a destination node of the second network region in a current link state, the second network region needs to perform protection switching; and under a situation that the source node of the first network region in the post-switching link state is consistent with the destination node of the second network region in the current link state, the second network region does not need to perform the protection switching.