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Message transmission method, nodes and path management servers

A packet transmission and transmission path technology, applied in the field of data transmission, can solve the problems of packet loss, unreasonable use of network bandwidth, inability to carry all segmentlist information, etc., and achieve the effect of fast switching

Inactive Publication Date: 2016-01-27
ZTE CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

During the message transmission process, if the transmission link fails and the message is lost, because the message does not contain the source node address information and segment ID sequence information of the message, the faulty node cannot inform its upstream node to send the message. path switching
[0005] In the process of message transmission, when the transmission link fails, because the intermediate forwarding nodes of the message transmission network cannot carry all the segmentlist information, the source node and upstream node of the message cannot be determined, and only rely on the global label forwarding mode, which is very dangerous. A loop of message transmission may be formed, resulting in unreasonable utilization of network bandwidth

Method used

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  • Message transmission method, nodes and path management servers
  • Message transmission method, nodes and path management servers
  • Message transmission method, nodes and path management servers

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Embodiment Construction

[0078] In the embodiment of the present invention, the routing label and the segment list information are carried in the message, and are transmitted with the message during the message transmission process; the routing label is used to indicate that the message carries the segment list information; the segment list information It is used to indicate the transmission path of the message; wherein, the segment list information includes a segment list or LISTID.

[0079] Further, during message transmission, when a link failure occurs between the first node and the second node, the first node obtains the upstream node of the first node according to the segment list information, and sends a notification to the upstream node;

[0080] Or, according to the section list information, pre-configure or calculate the backup path for message transmission in each node. During the message transmission process, when the link between the first node and the second node fails, the first node sen...

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Abstract

The invention discloses a message transmission method. A routing tag and segment list information are carried in a message to be transmitted along with the message in the message transmission process; the routing tag is used for indicating the segment list information carried in the message; and the segment list information is used for expressing the transmission path of the message. The invention also discloses four types of nodes and two types of path management servers simultaneously.

Description

technical field [0001] The invention relates to the data transmission technology of the communication system, in particular to a message transmission method, a node and a path management server. Background technique [0002] Segment Routing (SR) technology based on source address routing superimposes a layer of node information that affects the existing message transmission path outside the data message, and uses the shortest path to transmit the message according to the node information carried in the data message. When the message containing the segment routing message header is transmitted in the SR domain, the network device performs corresponding operations according to the segment operation instruction in the segment routing message header. Through the specified path forwarding function of SR, complex network functions such as network load balancing and fast rerouting can be realized conveniently. When segment operation instructions are extended to service or topology...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L12/703H04L45/50H04L45/28
CPCH04L45/50H04L45/28H04L45/34H04L45/507
Inventor 廖婷胡方伟吴波范亮
Owner ZTE CORP
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