Connectivity fault management in a provider backbone bridge traffic engineering (PBB-TE) domain

摘要

A system and method for providing Connectivity Fault Management, CFM, in a Provider Backbone Bridge Traffic Engineering, PBB-TE, telecommunication network utilizing Ethernet-based packet transport. PBB-TE point-to-point and point-to-multipoint services are identified, and PBB-TE maintenance points (31, 41) associated with the identified PBB-TE services are addressed. The addressed PBB-TE maintenance points are modified by adding a PBB-TE Service Demultiplexer (32, 42) to each PBB-TE maintenance point for identifying independent PBB-TE service instances. Basic CFM protocols are enhanced to duplicate the behavior of CFM protocols on virtual local area network, VLAN, based maintenance associations. The PBB-TE maintenance points may be Maintenance association End Points, MEPs, and Maintenance association Intermediate Points, MIPs.

主权项

1. A method of monitoring traffic within a network, the method comprising:
receiving, at a first node within a network, one or more loopback messages from a second node within the network, wherein each loopback message includes a target address parameter and a data portion; deciding whether to reply to a particular loopback message based, at least in part, on whether that loopback message includes either:
a target address parameter that matches an address of the first node, ora type length value (TLV) field that includes a Maintenance domain Intermediate Point (MIP) target address that matches the address of the first node; and in response to deciding to reply to a particular loopback message, generating a loopback reply based on that loopback message, wherein the generated loopback reply includes the data portion of that loopback message; wherein generating the loopback reply based on a particular loopback message comprises setting a source address parameter of the loopback reply to a Medium Access Control (MAC) source address of path that has a target address matching the source address parameter of the loopback message.