Patent ID: 9059791
Filing Date: 2015-06-16
Classification: H04B,H04L

Abstract:
1. A method for protecting a tunnel, comprising: setting a second protection group on two intermediate nodes of a first protection group; and when a segment between the two intermediate nodes fails, adopting the second protection group to protect the tunnel, wherein the step of adopting the second protection group to protect the tunnel comprises: adding, to a protected member of the second protection group, a 2-tuple in a 3-tuple of an Ethernet Switch Path (ESP) corresponding to a Connectivity Check Message (CCM) through which a member segment of the first protection group performs a failure detection, wherein the 3-tuple of the ESP is <ESP-DA, ESP-SA, ESP-VID> and the 2-tuple is <ESP-DA, ESP-VID>; the ESP-DA is a destination Media Access Control (MAC) address of the ESP configured for forwarding a CCM, which is dedicated to an inter-segment failure diagnosis, on a working segment or a protection segment; the ESP-SA is a source MAC address of the ESP configured for forwarding the CCM, which is dedicated to the inter-segment failure diagnosis, on the working segment or the protection segment; and the ESP-VID is a Virtual Local Area Network Identification (VLAN ID) to which a member segment, in which the second protection group is located, of the first protection group belongs.