Pseudo-wire labeling method for MPLS (Multiple Protocol Label Switching) network virtual exchange embodiment

Abstract

The invention relates to a pseudo-wire labeling method for an MPLS (Multiple Protocol Label Switching) network virtual exchange embodiment and a chip processing method for the pseudo-wire labeling method for the MPLS network virtual exchange embodiment. A configuration process in a double-layer virtual private network comprises the following steps: (1) establishing a virtual exchange embodiment and appointing an entry pseudo-wire label; (2) adding a network-side logic port in the virtual exchange embodiment, appointing an exit pseudo-wire label and an exit tunnel label as well as an entry tunnel label, and configuring attributions of the network-side logic port; and (3) adding a user-side logic port in the virtual exchange embodiment and configuring attributions of the user-side logic port, wherein the user-side logic port comprises a physical port and a virtual local area network identification. The chip processing method comprises the following steps: maintaining a double-layer address table of the virtual exchange embodiment of the double-layer virtual private network according to the message, and then performing service forwarding according to a target logic port acquired from the double-layer address table.

Description

technical field [0001] The present invention relates to a method for realizing a virtual switching instance of an MPLS communication device, and a method for realizing the same in a chip, more specifically, to a method for a pseudowire label used for a virtual switching instance of an MPLS network, and a method for using a virtual switching instance of an MPLS network A chip processing method based on the pseudowire label method of the MPLS network virtual switching instance. Background technique [0002] Layer 2 virtual switching instance follows RFC4761 (source: http: / / tools.ietf.org / html / rfc4761: Virtual Private LAN Service (VPLS) Using BGP for Auto-Discovery and Signaling) and RFC4762 (source: http: / / tools.ietf.org / html / rfc4762: Virtual Private LAN Service (VPLS) Using Label Distribution Protocol (LDP) Signaling), in addition to the traditional Layer 2 switch definition, it also defines some multi-protocol label switching in the standard Objects used on the control pla...

AI Technical Summary

Problems solved by technology

[0017] 1. There are many objects, resulting in complex configuration levels;

[0018] 2. Software and chips need to deal with the mapping relationship among MAC address, inbound tunnel label, outbound tunnel label, inbound pseudowire label, outbound pseudowire label, pseudowire ID, virtual switching instance ID, etc. There are many internal tables, and the processing procedures are many and complicated;

[0019] 3. The input pseudowires must be different, resulting in a large number of pseudowire tables, occupying resources such as registers and memory of chips and devices

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