Method, system and equipment for transmitting packets between supplier edge devices
A supplier and supplier backbone bridge technology, applied in the field of data transmission, can solve the problems of low forwarding efficiency and high pressure of copying and transmission, and achieve the effect of reducing the number of tunnels, reducing the pressure of copying and forwarding, and improving the low forwarding efficiency
Inactive Publication Date: 2011-05-11
HUAWEI TECH CO LTD
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Problems solved by technology
In addition, if the PE device receives the message transmitted by the CE device, if it cannot find the corresponding tunnel entry or CE device entry in the MAC table, it will broadcast and copy it to other PE devices belonging to the same service instance. Said that the pressure of copying and transmission is very high, and the forwarding efficiency is low
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0029]In the method for transmitting messages between PE devices in the embodiment of the present invention, at least one non-fully connected tunnel is configured in the PBB-TE networking, and the method includes: after receiving the message, searching for the destination MAC address and If the entrance of the tunnel corresponding to the I-TAG or the entrance of the CE device is not found, and the tunnel from which the message is transmitted does not belong to a fully-connected tunnel, or the message is transmitted from the CE device, then Sending the message through a connected tunnel, where the connected tunnel may include a fully-connected tunnel or a non-fully-connected tunnel;
[0030] If not found, and the tunnel from which the packet is tran...
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The embodiment of the invention discloses a method for transporting messages among supplier edge devices, which comprises receiving messages, searching for the entrance of a tunnel or the entrance of a client edge device, which is corresponding to purpose medium visit control address and service instance marks of the messages, if the entrance is not found, and the tunnel which is transmitted by the messages does not belong to a whole connection tunnel, or the messages are transmitted by a client edge device, then, transmitting the messages through the tunnel which is connected, if the entrance is found, and the tunnel which is transmitted by the messages belongs to a whole connection tunnel, and transmitting the messages through connected tunnels except the whole connection tunnel. The embodiment of the invention further discloses a system for transmitting messages among supplier edge devices and a supplier edge device. The proposal of the embodiment of the invention reduces the quantity of tunnels on the supplier edge devices, lightens transmitting and replication pressure of the supplier edge devices, and improves the transmitting efficiency.
Description
technical field [0001] The present invention relates to data transmission technology, in particular to a method, system and PE equipment for transmitting messages between Provider Edge (PE, Provider Edge) equipment. Background technique [0002] Referring to FIG. 1 , it is a schematic diagram of the structure of packets transmitted on different layers of networks in the existing Ethernet. Among them, (a) shows the message structure transmitted on the user layer, and the message transmitted at this time includes user data (Payload), source media access control (MAC, Media Access Conrrol) address (SA, Source Address) and destination MAC address (DA, Destination Address), the message structure on the user layer is very simple, only SA and DA are added to the user data, such a message structure is called a layer 2 message. (b) in Figure 1 shows the message structure transmitted on the access layer, the message transmitted at this time includes Payload, SA and DA, and the virtua...
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IPC IPC(8): H04L12/56H04L12/46H04L12/28
CPCH04L12/4633H04L12/462
Inventor 薛治徐剑王龑
Owner HUAWEI TECH CO LTD