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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

Active Publication Date: 2011-12-21
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0010] It can be seen from the above steps that the existing standard does not clearly distinguish the priority of the VPN service label and the priority of the tunnel label for the VPN service carried on the MPLS TE network, but simply inherits the priority of the VPN service label into the priority of the tunnel label Go, and abandon the three modes of differential services defined for MPLS DiffServ, which cannot provide flexible QoS guarantees

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

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Embodiment Construction

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0047] refer to figure 2 , proposes an embodiment of the implementation method of the MPLS network differential service carrying the VPN service of the present invention, including:

[0048] Step S101: Obtain the label priority of the VPN service carried by the current tunnel. For specific steps, refer to image 3 ,include:

[0049] Step S1011, check the MPLS DiffServ mode configured under the VPN instance to which the received message belongs;

[0050] Step S1012, if the uniform mode is configured under the VPN instance, then jump to step S1013, if it is not the uniform mode, it can be judged that the configuration is one of the Pipe mode or the Short Pipe mode, and step S1014 is performed;

[0051] Step S1013 , according to the definition of the Uniform mode, obtain the priority of the packet inside the de...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/851
Inventor 张舒兴
Owner ZTE CORP
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