US 2010/0251037 A1 · Method and apparatus for failure notification

Abstract

A method and an apparatus for failure notification are provided. The method includes: sending, when it is detected that a failure occurs in a multicast label switch path, failure information to a downstream node of a multicast tree where a failed point locates, where the multicast label switch path is established based on a multicast label distribution protocol; and forwarding the failure information through the downstream node, where the failure information arrives at a leaf node of the multicast tree where the failed point locates. According to the method and the apparatus for failure notification of the present invention, finally, the failure information is transmitted to a leaf node. After the failure information is obtained, the leaf node may take appropriate measure to ensure the normal service and improve the reliability of the network.

Claims16

Dependent claims

A method for failure notification, comprising:

detecting that a failure occurs in a multicast label switch path;
sending, in response to the detected failure, failure information to a downstream node of a multicast tree where a failed point locates, wherein the multicast label switch path is established based on a multicast label distribution protocol;
and
forwarding the failure information through the downstream node, wherein the failure information arrives at a leaf node of the multicast tree where the failed point locates.

1 more element

A switch apparatus, comprising:

a detection unit, configured to detect whether a failure occurs in a multicast Label Switch Path, where the multicast label switch path is established based on a multicast label distribution protocol;
and
an information unit, configured to send failure information to a downstream node of a multicast tree where a failed point locates when the detection unit detects the failure, where the failure information is forwarded through one or more downstream nodes and arrives at a leaf node of the multicast tree where the failed point locates.

Dependencies are inferred from the claim text.

Facts

Application

12/790,603Filed 28 May 2010

Priority

CN 200710195499.630 Nov 2007

Published

30 Sep 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04L 41/06
Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks: management of faults,…
H04L 45/16
Routing or path finding of packets in data switching networks: multipoint routing
H04L 45/28
Routing or path finding of packets in data switching networks: using route fault recovery
H04L 45/50
Routing or path finding of packets in data switching networks: using label swapping, e.g. multi-protocol label switch [MPLS]

Method and apparatus for failure notification

Life of this patent

Method and apparatus for failure notification

Life of this patent

Abstract

Claims16