Resource state monitoring method, device and communication network

A node in a communication network that comprises a plurality of nodes, comprising:

• a processor and a memory unit storing instructions for execution by the processor,
• wherein the instructions, when executed by the processor, cause the node to perform the following tasks:
• determining whether a label switching path connection, which connects the node with an adjacent node, is established successfully;
• based on a determination that the label switching path connection is not established successfully, determining whether a data plane resource state of the node and a control plane resource state of the node are consistent;
• and
• based on a determination that the data plane resource state of the node and the control plane resource state of the node are inconsistent, reporting the inconsistency to a management plane of the node.

A communication network, comprising a plurality of network nodes, each network node being configured to communicate with one or more other network nodes in the communication network;

• wherein at least one of the plurality of network nodes is configured to:
• determine whether a label switching path connection, which connects the network node with an adjacent network node, is established successfully;
• based on a determination that the label switching path connection is not established successfully, determine whether a data plane resource state of the network node and a control plane resource state of the network node are consistent;
• and
• based on a determination that the data plane resource state of the network node and the control plane resource state of the network node are inconsistent, report the inconsistency to a management plane of the network node.