US 2003/0112748 A1 · System and method for detecting failures and re-routing connections in a communication network

Abstract

A method of re-establishing a connection for a communication link is provided. The link has first and second portions, having the first portion in a first communication network, the second in a second communication network and an interface connecting first portion to the portion. The first communication network has a first communication protocol and a first OAM protocol to monitor integrity of the first portion. Similarly, the second communication network has a second communication protocol and a second OAM protocol. The method utilizes the second OAM protocol to detect a failure in the second portion. Upon detection of the failure, an alternate route for the second portion in the second communication network is identified, where the alternate route is able to complete the second portion of the communication link from the interface. For the communication link, at the interface the second portion is replaced with the alternate route.

Claims12

Dependent claims

A method of re-establishing a connection for a communication link, said communication link having a first portion in a first communication network, a second portion in a second communication network and an interface connecting said first portion to said portion, said first communication network having a first communication protocol and a first OAM protocol adapted to monitor integrity of said first portion, said second communication network having a second communication protocol and a second OAM protocol adapted to monitor integrity of said second portion, said method comprising:

utilizing said second OAM protocol to detect a failure in said second portion;
upon detection of said failure, identifying an alternate route for said second portion in said second communication network, said alternate route being able to complete said second portion of said communication link from said interface;
and
for said communication link, at said interface replacing said second portion with said alternate route.

1 more element

A network node associated with a first communication network and a second communication network, said network node processing communications for a communication link having a first portion in said first communication network, a second portion in said second communication network and an interface between said first portion and said second portion at said network node, said first communication network having a first communication protocol and a first OAM protocol adapted to monitor integrity of said first portion, said second communication network having a second communication protocol and a second OAM protocol adapted to monitor integrity of said second portion, said network node comprising:

a first module adapted to detect a failure in said second portion utilizing said second OAM protocol;
a second module adapted to receive an indication of said failure and upon receipt of said indication, to identify an alternate route for said second portion in said second communication network, said alternate route being able to complete said second portion of said communication link from said interface;
and
a third module adapted to receive an indication of said alternate route and to replace said second portion with said alternate route for said communication link.

1 more element

Dependencies are inferred from the claim text.

System and method for detecting failures and re-routing connections in a communication network

Life of this patent

System and method for detecting failures and re-routing connections in a communication network

Life of this patent

Abstract

Claims12