Patent ID: 9419860
Filing Date: 2016-08-16
CPC Classification: H04L

Claim Text:
1. A method for managing a logical topology change in a physical network, said network comprising a plurality of nodes having one or more interfaces associated with the logical topology and a Layer 2 Ethernet bridge forwarding database, said method comprising: transmitting a frame from a client interface of a source node to a client interface of a destination node; maintaining a logical topology number (LTN) in every node of the logical topology; identifying a change in the logical topology in response to the step of transmitting; generating a topology change message to notify the plurality of nodes in the logical topology about the changes in the logical topology; changing the LTN associated with the logical topology of each interface of the logical topology affected by the change upon receipt of the topology change message; comparing the LTN associated with the logical topology with the LTN associated with the destination address in forwarding database of the node; invalidating all the entries relating to the destination node from the forwarding database, if there is a mismatch in the comparison; and performing one of: for managing the logical topology change in the physical network.