Implementation method and device of mpls network differential service carrying vpn service

A technology of differentiated services and implementation methods, applied in the field of communication, can solve the problems of not being able to provide QoS guarantees, and not clearly distinguishing between the priority of VPN service labels and the priority of tunnel labels, etc., and achieve the effect of flexible QoS guarantee
CN102291297AActive Publication Date: 2011-12-21ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2011-12-21

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Abstract

The invention discloses a method for realizing differential service of an MPLS network carrying VPN services, comprising: judging the differential service mode of the current tunnel; and obtaining the label priority of the current tunnel according to the differential service mode. The invention also provides a corresponding device. The invention provides a method and device for realizing differential service of an MPLS network carrying VPN services, so that the priority of the tunnel label can selectively define the service level of the current layer.
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Description

technical field

[0001] The present invention relates to the field of communications, and in particular, to a method and device for realizing differential services of an MPLS network carrying VPN services. Background technique

[0002] The VPN based on MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) connects different branches of the private network through LSP to form a unified network. On the PE (Provider Edge, edge router) node, when VPN users enter the MPLS TE tunnel, MPLS labels, including VPN labels and tunnel labels, need to be pressed into user packets. In this case, the label EXP field needs to be manipulated. The MPLS label is composed of a 20-bit label value, a 3-bit EXP field, a 1-bit stack bottom label, and an 8-bit TTL. The 3-bit EXP is generally used to record label priority information.

[0003] RFC 3270 describes three modes of DiffServ (differentiated services) priority marking in MPLS networks: Uniform mode, Pipe mode and Short pipe m...

Claims

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