US 11,924,094 B2 · Virtual circuit-based data packet processing method and forwarding table entry construction method

Abstract

Provided is a virtual circuit-based data packet processing method, which includes that: identification information of a next-hop Provider Edge (PE) node of a routing packet and identification information of an Original PE (OPE) node of the routing packet are determined according to the routing packet corresponding to a Virtual Private Network (VPN) service instance; a context virtual circuit is determined, wherein nodes at both ends of the context virtual circuit are respectively the current PE node and the OPE node; a virtual circuit label of the context virtual circuit is determined; a final data packet to be forwarded is obtained by carrying a VPN label of the routing packet and the virtual circuit label with an initial data packet of the VPN service instance; and the final data packet to be forwarded is forwarded to the next-hop PE node.

Claims20

Dependent claims

A virtual circuit-based data packet processing method, which is applied to a Provider Edge (PE) node and comprises:

determining, according to a routing packet corresponding to a Virtual Private Network (VPN) service instance, identification information of a next-hop PE node of the routing packet and identification information of an Original PE (OPE) node of the routing packet, wherein the VPN service instance is deployed on a current PE node and the OPE node;
determining a context virtual circuit, wherein nodes at both ends of the context virtual circuit are respectively the current PE node and the OPE node;
determining a virtual circuit label of the context virtual circuit;
obtaining a first final data packet to be forwarded by carrying a VPN label of the routing packet and the virtual circuit label with an initial data packet of the VPN service instance;
and
forwarding the first final data packet to be forwarded to the next-hop PE node.

3 more elements

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.

2 more elements

Dependencies are inferred from the claim text.

Virtual circuit-based data packet processing method and forwarding table entry construction method

Life of this patent

Virtual circuit-based data packet processing method and forwarding table entry construction method

Life of this patent

Abstract

Claims20