US 9,313,090 B2 · Tunnel fault detection method and traffic engineering node

Abstract

The embodiments of the present invention provide a tunnel fault detection method and a traffic engineering (TE) node. The method includes: receiving, by a traffic engineering TE node, a link fault report packet; determining, by the node, a faulty link in which a fault occurs according to the link fault report packet; detecting, by the node, whether one or more tunnels which use the node as an ingress node and pass through the faulty link exist; and identifying the tunnels as faulty tunnels if the one or more tunnels which use the node as the ingress node and pass through the faulty link exist. In the embodiments of the present invention, the TE node can detect all faulty tunnels at a time, and it is not necessary to wait until the fault notification based on each tunnel is received and then the faulty tunnel is identified one by one.

Claims13

Dependent claims

A tunnel fault detection method, comprising:

receiving, by a traffic engineering (TE) node, a link fault report packet;
determining, by the TE node, a faulty link in which a fault occurs according to the link fault report packet;
detecting, by the TE node, whether one or more tunnels which use the TE node as an ingress node and pass through the faulty link exist;
and
if the one or more tunnels which use the TE node as the ingress node and pass through the faulty link exist, identifying the tunnels as faulty tunnels;
wherein the detecting, by the TE node, whether one or more tunnels which use the TE node as an ingress node and pass through the faulty link exist, comprises:
according to link information of links respectively passed through by multiple tunnels that use the TE node as the ingress node and according to link information of the faulty link, detecting, by the TE node, whether the one or more tunnels which use the TE node as the ingress node and pass through the faulty link exist.

4 more elements

A traffic engineering (TE) node, comprising:

a receiving unit, configured to receive a link fault report packet;
a determining unit, configured to determine a faulty link in which a fault occurs according to the link fault report packet received by the receiving unit;
a detecting unit, configured to detect whether one or more tunnels which use the TE node as an ingress node and pass through the faulty link exist;
and
an identifying unit, configured to identify the tunnels as faulty tunnels if it is determined that the tunnels which use the TE node as an ingress node and pass through the faulty link exist;
wherein the detecting unit comprises:
a tunnel link information obtaining subunit, configured to obtain link information of links respectively passed through by multiple tunnels that use the TE node as an ingress node;
a faulty link information obtaining subunit, configured to obtain link information on a faulty link in which a fault occurs;
and
a faulty tunnel detecting subunit, configured to:
according to the link information of links respectively passed through by multiple tunnels that use the TE node as an ingress node and according to the link information of the faulty link, detect whether the one or more tunnels which use the TE node as an ingress node and pass through the faulty link exist.

8 more elements

Dependencies are inferred from the claim text.

Tunnel fault detection method and traffic engineering node

Life of this patent

Tunnel fault detection method and traffic engineering node

Life of this patent

Abstract

Claims13