Pseudo-wire labeling method for MPLS (Multiple Protocol Label Switching) network virtual exchange embodiment
A technology of virtual switching instance and network virtualization, applied in the field of chip processing, it can solve the problems of occupying the register memory of chips and devices, complex configuration levels, and different input pseudo-wires, etc., to reduce delay and jitter, and to reduce packet processing flow The effect of less and saving hardware resources
Active Publication Date: 2014-07-30
杭州依赛通信有限公司
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Problems solved by technology
[0018] 1. There are many objects, resulting in complex configuration levels;
[0019] 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;
[0020] 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
Method used
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Embodiment Construction
[0056] Embodiments of the present invention are described in further detail below in conjunction with accompanying drawings:
[0057] A kind of pseudo wire label method used for MPLS network virtual switching instance, the configuration process in the two-layer virtual private network is as follows:
[0058] (1) Create a virtual switch instance and specify the pseudowire label;
[0059] (2) Add network-side logical ports to the virtual switching instance, specify outgoing pseudowire labels, outgoing tunnel labels, and incoming tunnel labels, and configure the attributes of the network-side logical ports;
[0060] (3) Add user-side logical ports to the virtual switching instance, the user-side logical ports include physical ports and virtual local area network identifiers, and configure attributes of the user-side logical ports.
[0061] A logical port entry and exit table is defined, and the entry and exit table is generated through direct configuration of the control plane, ...
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The invention relates to a pseudowire label method used for an MPLS network virtual exchange instance, and a chip processing method for the pseudowire label method used for an MPLS network virtual exchange instance. The configuration process in the Layer 2 virtual private network is as follows: (1) Create a virtual switching instance and specify the incoming pseudowire label; (2) Add a network-side logical port to the virtual switching instance and specify the outgoing pseudowire label, outgoing tunnel label, Ingress tunnel label, configure the network side logical port attribute; (3) add the user side logical port in the virtual switching instance, the user side logical port includes the physical port and virtual local area network identification, configure the user side logic port Port properties. Chip processing method, after receiving the MPLS message, the chip maintains the layer 2 address table of the virtual switching instance of the layer 2 virtual private network according to the message, and then performs service forwarding according to the destination logical port obtained from the layer 2 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: [0003] 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 definition of the traditional Layer 2 switch, the standard also defines the objects used in the control plane and data plane relat...
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IPC IPC(8): H04L12/723H04L45/50
Inventor 付俊叶钧王时刚金恩江
Owner 杭州依赛通信有限公司