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Load sharing method and apparatus or fast rerouting method and apparatus

A load sharing and routing technology, applied in the field of communication, can solve the problems of data message loss and insufficient switching speed, and achieve the effect of reducing message loss and improving network transmission efficiency

Inactive Publication Date: 2008-12-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing fast rerouting technology uses hello messages for failure detection. When the link is congested, it can switch data to the backup link for transmission within milliseconds, but the switching speed is still not fast enough. Will cause more data packets to be lost

Method used

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  • Load sharing method and apparatus or fast rerouting method and apparatus
  • Load sharing method and apparatus or fast rerouting method and apparatus
  • Load sharing method and apparatus or fast rerouting method and apparatus

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Embodiment Construction

[0030] The load sharing method and device provided by the embodiments of the present invention can perform load sharing based on back pressure signals, reduce the probability of message discarding, make load sharing more balanced, and improve network transmission efficiency.

[0031] 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.

[0032] figure 2 It is a flow chart of an embodiment of the load sharing method provided by the present invention. The method includes:

[0033] 201: When the packet is forwarded to the current load sharing path, judge whether the backpressure signal of the current path is true. If the judgment result is yes, that is, the backpressure signal is true, indicating that the current packet forwarding path is congested, then execute 203; if the judgment result is no, that is, the...

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Abstract

The invention provides a method and a device for load sharing or for fast rerouting. The load sharing method provided by the invention comprises the steps that: when a packet is forwarded to a first current path, the judgment that whether the backpressure signal of the first path is true is carried out, if so, the packet is forwarded on the first path or if not, marking the first path as unavailable and switching to a second path under the same route for forwarding the packet are carried out. The fast routing method provided by the invention comprises the steps that: when a packet is forwarded to a fist link, the judgment that whether the backpressure signal of the first link is true is carried out, if not, the packet is forwarded on the first link or if so, the switching to a second link for forwarding the packet is carried out. The invention can lead the load sharing more balanced, improve the network transmission efficiency and more quickly switch to pre-configured fast rerouting in case of link congestion.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for load sharing or a method and device for fast rerouting. Background technique [0002] In network construction, in order to improve the reliability of data transmission and realize the shared transmission of data traffic, load sharing technology appears. Load sharing is a technology that allows the use of multiple paths to a given destination address. These paths may come from static routing or dynamic routing protocols, such as RIP (Routing Information Protocol, Routing Information Protocol), EIGRP (Enhance Interior Gateway Routing Protocol, Enhanced Interior Gateway Routing Protocol), OSPF (Open Shortest Path First, Open Shortest Path Protocol). Routing is the act of passing information from a source across a network to a destination, encountering at least one intermediate node along the way. Using load sharing technology, multiple equal-cost paths can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/701H04L12/803
Inventor 韩冰
Owner HUAWEI TECH CO LTD
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