Method and system for establishing tunnels

摘要

A method for establishing tunnels includes establishing a first unidirectional tunnel from a first node to a second node, and sending a first instruction for establishing a reverse tunnel of the first tunnel, when sending the first instruction to the second node, triggering the establishment of a second unidirectional tunnel from the second node to the first node, and binding the second tunnel to the first tunnel as the reverse tunnel of the first tunnel. A system for establishing tunnels is also provided. The establishment of a reverse tunnel may be automatically triggered after a forward tunnel is established, and a bidirectional tunnel is established.

主权项

1. A method for establishing traffic engineering (TE) tunnels, the method comprising:
sending, by a first node, a first Path message for establishing a first unidirectional TE tunnel from the first node to a second node, wherein the first Path message comprises: (1) triggering information configured to trigger the second node to send a second Path message for establishing a second unidirectional TE tunnel from the second node to the first node and (2) bandwidth information that specifies a bandwidth for the second unidirectional TE tunnel, wherein the bandwidth for the second unidirectional TE tunnel is different from a bandwidth of the first unidirectional TE tunnel; receiving, by the first node, the second Path message and a first Resv message responsive to the first Path message; and sending, by the first node, a second Resv message responsive to the second Path message.