Transport Software Defined Networking (SDN) - Zero Configuration Adjacency via Packet Snooping

摘要

A transport software defined networking (SDN) controller comprising a receiver and a processor coupled to the receiver. The processor is configured to cause the transport SDN controller to determine a physical topology based on physical layer adjacency discovery messages received from physical layer network elements (NEs), receive advertisement messages from the physical layer NEs, each advertisement message comprising a mapping between an adjacent network layer NE and a port of the associated physical layer NE, extract a network layer adjacency request from some of the advertisement messages indicating a first network layer NE is requesting a network layer connection with a second network layer NE, and setup a physical layer connection between the first network layer NE and the second network layer NE based on the network layer adjacency request, the advertisement messages, and the physical topology.

主权项

1. A transport software defined networking (SDN) controller, comprising:
a receiver; a transmitter; and a processor coupled to the receiver and transmitter, the processor configured to
determine a physical topology based on physical layer adjacency discovery messages received from physical layer network elements (NEs),receive advertisement messages from the physical layer NEs via the receiver, wherein each advertisement message comprises a mapping between an adjacent network layer NE and a port of the associated physical layer NE, and wherein at least one of the advertisement messages comprises a network layer adjacency request indicating a first network layer NE is requesting a network layer connection with a second network layer NE; and
transmit control messages to the physical layer NEs via the transmitter, wherein the control message indicates a physical layer connection setup between the first network layer NE and the second network layer NE via the physical layer NEs based on the network layer adjacency request, the advertisement messages, and the physical topology.