Method for controlling access and forwarding in virtual special LAN service network
A technology of virtual private and service network, applied in the field of data communication, which can solve the problems of inflexible implementation of CE equipment isolation requirements, ineffective control of CE equipment access mode, incapability of hubPW flooding and forwarding, etc.
Active Publication Date: 2008-12-03
ZTE CORP
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Problems solved by technology
[0016] 2. The PE device receives data packets from the hub PW, and can flood and forward them to all AC interfaces and spoke PWs of the PE device, but cannot flood and forward them to other hub PWs;
[0021] 1. It is impossible for CE not to receive the message forwarded by PE;
[0022] 2. The requirement for mutual isolation of CE devices cannot be flexibly realized;
[0023] 3. It is impossible to effectively control the access mode of CE equipment to form branches and headquarters;
Method used
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[0044] At first, key measure and working principle of the present invention are described:
[0045] Based on the original VPLS related standards and schemes, the present invention divides the AC attributes of the PE equipment into two types, the server attribute AC and the client attribute AC, and after adding two AC attributes, the four working situations of the PE equipment for data packet flooding Expressed as follows, such as image 3 shown, including:
[0046] 310) If the PE device receives the data packet from the server AC, it floods and forwards all other serverAC interfaces, client AC interfaces, hub PWs and spoke PWs of the PE device;
[0047] 320) If the PE device receives the data packet from the client AC, it will flood and forward all server AC interfaces and spoke PWs of the PE device, and cannot flood and forward to other client ACs and hub PWs;
[0048] 330) If the PE device receives the data packet from the hub PW, it will flood and forward all server AC in...
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The invention relates to a method for controlling access and transmission in a virtual private LAN service network, which includes the following steps: the property of the server connected to the access circuit of the operator edge equipment and the property of the client are defined and divided; different treatments to the access circuit connection of the server property and the client property are carried out when flooding and transmission are carried out to the other specific connection of the equipment according to the specific connection sources of the receiving data package of the operator edge equipment; the specific connection includes access circuit connection and spurious line connection. Compared with the prior art, the method can meet more service application and user demand, and the method inherits the existing VPLS technical standard without adding a new signaling and protocol, and carries out the arrangement of new service more flexibly and no modification is carried out basically to the existing network structure.
Description
technical field [0001] The invention relates to data communication, in particular to a method for controlling access and forwarding in a virtual private local area network (VPLS-Virtual Private LAN Service). Background technique [0002] The MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) technology has become one of the mainstream technologies of the IP (Internet Protocol, Internet Protocol) bearer network. The IP bearer network realizes the isolation of multiple services and users of the IP bearer network by using MPLS-related technologies, such as MPLS virtual private network (MPLS VPN) technology. MPLS VPN involves three-layer virtual private network (MPLS L3VPN) and two-layer virtual private network network (MPLS L2VPN), etc. [0003] Ethernet technology develops rapidly and is widely used in enterprise networks. In carrier networks, due to the high bandwidth and low cost of Ethernet, the number of Metropolitan Area Networks (MANs) is increasing, ...
Claims
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IPC IPC(8): H04L12/56H04L12/46H04L12/70
Inventor 朱超国
Owner ZTE CORP