Abstract:

RRPP can prevent broadcast storms caused by data loops. When the main link between the edge node and the assistant edge node failed, the assistant edge node will block the edge port after the edge node received Major-Fault packet. The edge node at this time just like an “island.” In this paper, all the subrings in the ring ware stored in a custom linked list from small to large according to the above problem. When the edge node received Major-Fault packet, the edge port of the smallest sub-ring in the ring network was selected, and the state of the edge port was changed from blocking to releasing. It solved the problem of traffic interruption at the edge port when the primary ring link fails.At this point, the edge node removes the blockage and is no longer an “island” of traffic failure.

Key words: rapid ring protection protocol, edge node, assistant edge node, subring, main ring, isolated island