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Method, system and edge device for sending data messages

A data message and edge device technology, applied in the broadband field, can solve the problems of data message loss and non-processing protocol messages, etc.

Active Publication Date: 2011-07-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the edge device connected to the BPDU Tunnel does not process the protocol packets transmitted in the BPDU Tunnel, when the network topology changes, data packets may be lost

Method used

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  • Method, system and edge device for sending data messages
  • Method, system and edge device for sending data messages
  • Method, system and edge device for sending data messages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see image 3 , which is a flowchart of an embodiment of a method for sending a data message in the present invention, the method includes the following steps:

[0021] Step 301: When a BPDU protocol message is received, determine whether the received BPDU protocol message is a message related to a network topology change.

[0022] Wherein, the judging whether the received BPDU protocol message is a message related to a network topology change includes: judging whether each received BPDU protocol message is a message related to a network topology change; Or, it is judged whether the BPDU protocol message received within a specific time is a message related to the topology change of the network.

[0023] For example, with figure 1 Take the topology shown in as an example. Whenever the edge device S4 or S5 at the two ends of the BPDU tunnel receives a BPDU protocol packet, it judges whether the BPDU protocol packet is a topology change of the network where S1, S2, and S3...

Embodiment 2

[0040] Please combine figure 1 The topological network structure diagram shown, see Figure 4 , which is a flow chart of another embodiment of a method for sending a data message in the present invention, including the following steps:

[0041] Step 401: The edge devices S4 at both ends of the bridge protocol data unit tunnel BPDU Tunnel receive the BPDU protocol message;

[0042] Step 402: The edge device S4 judges whether the received BPDU protocol message is a TC message, a TCN message or a flush message, if yes, enter step 403, if not, enter step 405;

[0043] Among them, the edge device S4 can judge whether the BPDU protocol message is a TC message, a TCN message or a flush message every time it receives a BPDU protocol message, and can also start a timer to determine the timing of the timer Whether the received BPDU protocol packet is a TC packet, TCN packet or flush packet.

[0044] For the judgment of the TC message, specifically, it may be to analyze the STP messag...

Embodiment 3

[0056] Corresponding to the foregoing method for sending a data message, an embodiment of the present invention further provides an edge device. see Figure 5 , which is a structural diagram of an embodiment of an edge device in the present invention, and the edge device includes a judging unit 501 and a sending unit 502 . The internal structure and connection relationship of the device will be further introduced below in conjunction with the working principle of the device.

[0057] A judging unit 501, configured to, when a BPDU protocol message is received, determine whether the received BPDU protocol message is a message related to a network topology change;

[0058]The sending unit 502 is configured to, when the BPDU protocol message is a message related to a network topology change, send the received data message to the peer edge device in a broadcast manner.

[0059] The above judgment unit 501 may include: a first parsing subunit 5011 and a first reading subunit 5012,...

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PUM

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Abstract

The embodiment of the invention discloses a method, system and edge device for sending data messages. The method comprises the following steps: when protocol messages of bridge protocol data units (BPDUs) are received, judging whether the received protocol messages of the BPDUs are messages related to the change of the topological structure of a network; and if the protocol messages of the BPDUs are the messages related to the change of the topological structure of the network, sending the received data messages to the edge device at the opposite end in a broadcasting mode. According to the invention, the problem that the data messages are lost resulting from the topological change of the network can be solved when network topology is changed.

Description

technical field [0001] The present invention relates to the field of broadband technology, in particular to a data message sending method, system and edge device. Background technique [0002] BPDU Tunnel (Bridge Protocol Data Unit Tunnel, Bridge Protocol Data Unit Tunnel) is a path set in the second or third layer switching network in the form of a tunnel, so that different user networks can transparently transmit each other's protocol reports through the BPDU Tunnel. arts. For example, when the user network is divided into two parts, user network A and user network B, by configuring BPDU tunnels between the edge devices of the carrier network, when packets arrive at the ingress of the BPDU tunnel, the protocol report The format of the destination MAC address of the text is replaced with a MAC address in a special format. When the packet reaches the output end of the BPDU Tunnel, the protocol packet is restored to the format of the destination MAC address at the output end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/721
Inventor 徐亦斌谢莹
Owner HUAWEI TECH CO LTD