A method and device for realizing isomerous VPLS network by using policy route
A routing and policy technology, applied in the direction of network interconnection, data exchange network, data exchange through path configuration, etc., can solve the problem that the Layer 2 protocol network cannot access the VPLS network, etc., and achieve the effect of improving the networking capability.
Inactive Publication Date: 2010-06-09
ZTE CORP
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[0004] The technical problem to be solved by the present invention is to provide a method and device for realizing VPLS network heterogeneity by using policy routing, which is used to solve the problem that different Layer 2 protocol networks cannot access the VPLS network
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[0027] The technical solutions of the present invention will be further described in more detail in conjunction with the accompanying drawings and specific embodiments.
[0028] Such as figure 2 Shown is the VPLS heterogeneous network model of the present invention, image 3 It is the networking diagram of the VPLS heterogeneous realization of the present invention.
[0029] exist figure 2 , a simple VPLS model is described. In this model, the type of Layer 2 protocol connected to PE1 and PE3 is Ethernet, and the type of Layer 2 protocol connected to PE2 is PPP. It can also be FR, ATM, Ethernet and other Layer 2 protocol types. Among them, PE (Provider Edge Device) is a provider edge device.
[0030] The existing VPLS technology cannot allow CE1, CE2, and CE3 to achieve mutual access. In order to solve this limitation of VPLS and realize intercommunication between CE1, CE2 and CE3, some changes can be made to the network. The network diagram after the changes is as foll...
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The invention discloses a method and a device for realizing a heterogeneous VPLS network by using a policy-based routing, wherein, the method includes the steps that: step one, two layers protocols which are positioned at an edge device at the customer end and is different from ethernet type protocol are stopped before being connected into a switch-in port of the edge device of a provider throughthe additional arrangement of a first ethernet interface and a second ethernet interface on the edge device of the provider; step two, the data message of the two layers protocols is output from the first ethernet interface through an application policy-based routing, and the data output from the first ethernet interface is returned to the edge device of the provider through the second ethernet interface, then the second ethernet interface is added into VFI instances created by a VPLS network. The invention resolves the limit that the type of the two layers protocols connected from the edge device CE at the customer end must be same through expanding the VPLS network by taking fully the prior routing technology, thus a communication between multi types of protocols is realized, and the networking capability of VPLS in practice is enhanced.
Description
technical field [0001] The invention relates to network equipment supporting VPLS (Virtual Private LAN Service, virtual private local area network service), in particular to a method and device for realizing VPLS network heterogeneity by using policy routing. Background technique [0002] Traditional Pseudo Wire (Pseudo Wire, PW)-based Layer 2 Virtual Private Network (Virtual Private Network, VPN), including VPLS network, requires that the type of Layer 2 protocol accessed by Customer Edge Device (CE) must be Ethernet type, such as figure 1 As shown, the scope of use of VPLS is limited. However, multiple Layer 2 protocols such as PPP, FR, ATM, and Ethernet coexist in the existing data network, and the traditional VPLS network makes it impossible for networks of different Layer 2 protocol types to communicate with each other. Among them, PPP (Point-to-Point Protocol) is a point-to-point protocol, FR (Frame Relay) is frame relay, and ATM (Asynchronous Transfer Mode) is an as...
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IPC IPC(8): H04L12/56H04L12/46H04L29/06H04L45/741
Inventor 郑其杉卢中军于洪涛
Owner ZTE CORP