Method and device for processing location information of fault point

A method for sending location information of a fault point, comprising:

• obtaining, by a transit node on a Label Distribution Protocol (LDP) Label Switch Path (LSP), first location information of a fault point on a link traversed by the LDP LSP, wherein the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• sending, by the transit node, the first location information of the fault point to an ingress node of the LDP LSP according to a local label forwarding entry corresponding to the LDP LSP and according to source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that the ingress node provides a user with the first location information of the fault point corresponding to an LDP LSP fault using a network management device so that the user can determine a location of the fault point corresponding to an LDP LSP fault using the network management device, wherein the transit node stores the local label forwarding entry corresponding to the LDP LSP and stores the source and destination information of the label corresponding to the local label forwarding entry corresponding to the LDP LSP before the transit node obtains the first location information of the fault point.

A method for processing fault alarm information, comprising:

• receiving, by a network management device, Label Distribution Protocol (LDP) Label Switch Path (LSP) fault alarm information sent by an ingress node of a LDP LSP, wherein the LDP LSP fault alarm information comprises first location information of a fault point on a link traversed by the LDP LSP, and the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• determining, by the network management device, a location of the fault point corresponding to an LDP LSP fault according to the first location information of the fault point;
• wherein the first location information of the fault point is received by the ingress node and sent by the upstream node of the fault point using at least one node wherein the at least one node is connected between the ingress node and the upstream node of the fault point;
• wherein before receiving the first location information of the fault point sent by a downstream node of each of the at least one node, the each of the at least one node stores a local label forwarding entry corresponding to the LDP LSP, and stores source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that each of the at least one node sends the first location information of the fault point to an upstream node of the each of the at least one node according to the stored label forwarding entry corresponding to the LDP LSP and the stored source and destination information of the label corresponding to the label forwarding entry corresponding to the LDP LSP.

An ingress node device for obtaining location information of a fault point and providing the location information to a user, comprising:

• a processor, and
• a memory storing executable instructions when executed by the processor cause the ingress node device to perform the following steps:
• receive first location information of the fault point on a link traversed by a Label Distribution Protocol (LDP) Label Switch Path (LSP) sent by an upstream node of the fault point using at least one node, wherein the at least one node is connected between the ingress node device and the upstream node of the fault point and the first location information of the fault point comprises an identifier of the upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point, and wherein before receiving the first location information of the fault point sent by a downstream node of each of the at least one node, each of the at least one node stores a local label forwarding entry corresponding to the LDP LSP, and stores source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that each of the at least one node sends the first location information of the fault point to an upstream node of the each of the at least one node according to the stored label forwarding entry corresponding to the LDP LSP and the stored source and destination information of the label corresponding to the label forwarding entry corresponding to the LDP LSP;
• and
• provide, by the ingress node, the first location information of the fault point to a network management device so that the user determines the location of the fault point corresponding to the LDP LSP fault using the network management device.

A transit node device for sending location information of a fault point, comprising:

• a processor, and
• a memory storing executable instructions when executed by the processor cause the transit node device to perform the following steps:
• obtain first location information of a fault point on a link traversed by a Label Distribution Protocol (LDP) Label Switch Path (LSP), wherein the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• send the first location information of the fault point to an ingress node of the LDP LSP according to a local label forwarding entry corresponding to the LDP LSP and according to source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that the ingress node provides a user with the first location information of the fault point corresponding to an LDP LSP fault using a network management device so that the user can determine a location of the fault point corresponding to an LDP LSP fault using the network management device, wherein the transit node stores the local label forwarding entry corresponding to the LDP LSP and stores the source and destination information of the label corresponding to the local label forwarding entry corresponding to the LDP LSP before the transit node obtains the first location information of the fault point.

A network management device for processing fault alarm information, comprising:

• a processor, and
• a memory storing executable instructions when executed by the processor cause the network management device to perform the following steps:
• receive Label Distribution Protocol (LDP) Label Switch Path (LSP) fault alarm information sent by an ingress node of a LDP LSP, wherein the LDP LSP fault alarm information comprises first location information of a fault point on a link traversed by the LDP LSP, and the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• determine a location of the fault point corresponding to an LDP LSP fault according to the first location information of the fault point,
• wherein the first location information of the fault point is received by the ingress node and sent by the upstream node of the fault point using at least one node wherein the at least one node is connected between the ingress node and the upstream node of the fault point, and
• wherein before receiving the first location information of the fault point sent by a downstream node of each of the at least one node, the each of the at least one node stores a local label forwarding entry corresponding to the LDP LSP, and stores source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that each of the at least one node sends the first location information of the fault point to an upstream node of the each of the at least one node according to the stored label forwarding entry corresponding to the LDP LSP and the stored source and destination information of the label corresponding to the label forwarding entry corresponding to the LDP LSP.

A non-transitory computer readable medium storing codes when executed by a processor of a computer system cause the computer system to perform steps of:

• receive first location information of a fault point on a link traversed by a Label Distribution Protocol (LDP) Label Switch Path (LSP) sent by an upstream node of the fault point using at least one node, wherein the at least one node is connected between the ingress node and the upstream node of the fault point and the first location information of the fault point comprises an identifier of the upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point, and wherein before receiving the first location information of the fault point sent by a downstream node of each of the at least one node, the each of the at least one node stores a local label forwarding entry corresponding to the LDP LSP, and stores source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that each of the at least one node sends the first location information of the fault point to an upstream node of the each of the at least one node according to the stored label forwarding entry corresponding to the LDP LSP and the stored source and destination information of the label corresponding to the label forwarding entry corresponding to the LDP LSP;
• and
• provide, by the ingress node, the first location information of the fault point to a network management device so that the user determines the location of the fault point corresponding to the LDP LSP fault using the network management device.

A non-transitory computer readable medium storing codes when executed by a processor of a computer system cause the computer system to perform steps of:

• obtain first location information of a fault point on a link traversed by a Label Distribution Protocol (LDP) Label Switch Path (LSP), wherein the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• send the first location information of the fault point to an ingress node of the LDP LSP according to a local label forwarding entry corresponding to the LDP LSP and according to source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that the ingress node provides a user with the first location information of the fault point corresponding to an LDP LSP fault using a network management device so that the user can determine a location of the fault point corresponding to an LDP LSP fault using the network management device, wherein the transit node stores the local label forwarding entry corresponding to the LDP LSP and stores the source and destination information of the label corresponding to the local label forwarding entry corresponding to the LDP LSP before the transit node obtains the first location information of the fault point.

A non-transitory computer readable medium storing codes when executed by a processor of a computer system cause the computer system to perform steps of:

• receive Label Distribution Protocol (LDP) Label Switch Path (LSP) fault alarm information sent by an ingress node of a LDP LSP, wherein the LDP LSP fault alarm information comprises first location information of a fault point on a link traversed by the LDP LSP, and the first location information of the fault point comprises an identifier of an upstream node of the fault point and an identifier of an interface that is connected to the fault point and located on the upstream node of the fault point, wherein the upstream node of the fault point connects to the fault point directly and locates in an upstream direction of the fault point;
• and
• determine a location of the fault point corresponding to an LDP LSP fault according to the first location information of the fault point,
• wherein the first location information of the fault point is received by the ingress node and sent by the upstream node of the fault point using at least one node wherein the at least one node is connected between the ingress node and the upstream node of the fault point, and
• wherein before receiving the first location information of the fault point sent by a downstream node of each of the at least one node, the each of the at least one node stores a local label forwarding entry corresponding to the LDP LSP, and stores source and destination information of a label corresponding to the local label forwarding entry corresponding to the LDP LSP so that each of the at least one node sends the first location information of the fault point to an upstream node of the each of the at least one node according to the stored label forwarding entry corresponding to the LDP LSP and the stored source and destination information of the label corresponding to the label forwarding entry corresponding to the LDP LSP.