Patent ID: 7782847
Filing Date: 2010-08-24
Classification: H04L

Abstract:
1. A method of testing connectivity of a multi-segment pseudo-wire in a packet switched network, the method comprising: sending an echo request message from a first provider edge device to a second provider edge device for a first segment of the multi-segment pseudo-wire between the first provider edge device and the second provider edge device; receiving an echo reply message from the second provider edge device in response to the echo request message, the echo reply message confirming connectivity of the first segment and having a return code of either a first value or a second value; for the return code of the first value, indicating whether there is a second segment in the multi-segment pseudo-wire between the second provider edge device and a third provider edge device; and, including pseudo-wire information pertaining to the second segment in the echo reply message, wherein the sending, receiving, and indicating steps are repeated for each subsequent segment in the multi-segment pseudo-wire until the return code of the second value is received, indicating termination of the multi-segment pseudo-wire.