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Fast Recovery and Privacy Preservation against Global Eavesdropper in Ethernet Network

J. Hemalatha, Mr. Dhamothiran


Fast recovery from link failures is a well-studied topic in IP networks. Employing fast recovery in Ethernet networks is complicated as the forwarding is based on destination MAC addresses, which do not have the hierarchical nature similar to those exhibited in Layer 3 in the form of IP-prefixes. Moreover, switches employ backward learning to populate the
forwarding table entries. Thus, any fast recovery mechanism in Ethernet networks must be based on undirected spanning trees. Develop an elegant technique to compute the protection graphs at a node such that each link connected to the node is removed in at least one of the
protection graphs, and every protection graph is two-edge connected. The highlight of our approach is that prove that every node requires at most three protection graphs, hence three protection addresses. When a tunneled packet encounters multiple link failures connected to the same next-hop node. Conclude that the next-hop node has failed. The packet is then forwarded to the original destination from the last good node in the protection graph along a path, which does not contain the failed node.


Protocol (IP) layer, VLAN, ESCAP, Quality-of-Service (QoS)

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