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Method and device for realizing differentiated service of mpls network bearing 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., to achieve the effect of flexible QoS guarantee

Active Publication Date: 2017-08-25
ZTE CORP
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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 differentiated services that have been defined for MPLS DiffServ, and cannot provide flexible QoS guarantees

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  • Method and device for realizing differentiated service of mpls network bearing vpn service
  • Method and device for realizing differentiated service of mpls network bearing vpn service
  • Method and device for realizing differentiated service of mpls network bearing vpn service

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Embodiment Construction

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

[0047] refer to figure 2 , propose an embodiment of the implementation method of the MPLS network differentiated service carrying VPN services 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 differential service 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, skip to step S1013; if not, it can be judged that the configuration is one of Pipe mode or Short Pipe mode, and execute step S1014;

[0051] Step S1013, according to the definition of the Uniform mode, obtain the priority of the message in the device, and obtain a 3-bit value for the pr...

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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 the differential service of the 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, in particular to a method and device for realizing MPLS network differential service carrying VPN services. Background technique [0002] A VPN based on MPLS (Multi-Protocol Label Switching) connects different branches of a private network through LSPs to form a unified network. On the PE (Provider Edge, edge router) node, when the VPN user enters the MPLS TE tunnel, it is necessary to press the MPLS label into the user packet, including the VPN label and the tunnel label. At this time, the label EXP field needs to be operated. An MPLS label is composed of a 20-bit label value, a 3-bit EXP field, a 1-bit stack bottom mark, and an 8-bit TTL. The 3-bit EXP is generally used to record label priority information. [0003] RFC 3270 describes three modes of MPLS network DiffServ (differentiated service) priority marking: Uniform mode, Pipe mode and Short pipe mode. Among them, the Uniform mode i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/46H04L12/851
Inventor 张舒兴
Owner ZTE CORP
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