Patent ID: 11924094
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A virtual circuit-based forwarding table entry construction method, which is applied to a Provider Edge (PE) node and comprises:
determining, according to a first VPN route received, a context virtual circuit corresponding to a first Virtual Private Network (VPN) label of the first VPN route, wherein nodes at both ends of the context virtual circuit are respectively a current PE node and an Original PE (OPE) node generating the VPN route, and the first VPN route is a VPN route corresponding to a VPN service instance;
determining a virtual circuit label of the context virtual circuit;
binding a label space to the virtual circuit label so that the context virtual circuit identifies a context label space to which the first VPN label belongs;
determining a value of the first VPN label for the first VPN route in the label space;
constructing a context label forwarding table entry for the first VPN label, wherein the context label forwarding table entry is a label forwarding table entry in the context label space.