Determining method and device for flow forwarding path and communication system

A technology of path determination and traffic forwarding, applied in the field of communication, which can solve problems such as poor network adaptability

Inactive Publication Date: 2014-07-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor network adaptability in the prior art, an embodiment...

Method used

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  • Determining method and device for flow forwarding path and communication system
  • Determining method and device for flow forwarding path and communication system
  • Determining method and device for flow forwarding path and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] An embodiment of the present invention provides a method for determining a traffic forwarding path. The execution body of the method may be a first network node, and the first network node is a network node in the first AS. See figure 2 , the method includes:

[0176] Step 101: Acquire link quality information of each link in the first AS.

[0177] In this embodiment, the link quality information of each link includes the respective link quality indicators of each link (see Embodiment 2), or the link quality information of each link includes The index reference value for the calculation of the respective link quality index (see Embodiment 3). The link quality indicators include one or more dynamic link quality indicators.

[0178] Optionally, the link quality information may further include one or more static link quality indicators.

[0179] It should be noted that the dynamic link quality index is a link quality index that changes in real time according to the lin...

Embodiment 2

[0185] This embodiment will take a network node in the same AS as an example to describe the method for determining a traffic forwarding path of the present invention. An embodiment of the present invention provides a method for determining a traffic forwarding path. The execution body of the method may be a first network node. In this embodiment, the first network node is any network node in the first AS, and the first network node is The dynamic routing protocol adopted by the network nodes in the AS can be the OSPF protocol or the ISIS protocol. The link quality information of each link includes the respective link quality indicators of each link, and the link quality indicators include one or more dynamic routing protocols. Link quality indicator. see image 3 , the method includes:

[0186] Step 201: Acquire link quality information of each link in the first AS, the link quality information of each link includes respective link quality indicators of each link, and the l...

Embodiment 3

[0272] This embodiment of the present invention provides a method for determining a traffic forwarding path. The difference between this embodiment and Embodiment 2 is that, in this embodiment, the link quality information of each link includes The index reference value for link quality index calculation. The link quality index includes one or more dynamic link quality indexes. see Figure 4 , the method includes:

[0273] Step 301: Acquire link quality information of each link in the first AS, the link quality information of each link includes an index reference value calculated according to the respective link quality index of each link, and the link quality index includes One or more dynamic link quality metrics.

[0274] It can be understood that, compared with Embodiment 2, the link quality information of each link in this embodiment includes an index reference value calculated according to the link quality index of each link, and the link quality information The volum...

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Abstract

The invention discloses a determining method and device for a flow forwarding path and a communication system, and belongs to the technical field of communication, The method comprises the steps that a first network node obtains link quality information of each link in a first autonomous system and is a network node in the first autonomous system, and the link quality information of each link comprises a respective link quality index of each link or comprises an index reference value calculated according to the respective link quality index of each link; each link quality index comprises one or more dynamic link quality indexes; according to the current obtained link quality information of each link in the first autonomous system, the path, used for forwarding flow to all second network nodes, of the first network node is determined, and the second network nodes are network nodes in the first autonomous system except the first network node. According to the method and the device, network adaptation capacity is high.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method, device and communication system for determining a traffic forwarding path. Background technique [0002] With the rapid development of IP (Internet Protocol, Internet Protocol) network, IP network occupies an increasingly important position in telecommunication network, and is widely used in softswitch network bearer, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) network bearer , VIP customer service bearer, wireless backhaul bearer, etc. IP networks usually determine traffic forwarding paths through dynamic routing protocols, such as OSPF (Open Shortest Path First) protocol, ISIS (Intermediate System to Intermediate System, intermediate system to intermediate system routing) protocol, CSPF (Constrained) Shortest Path First, constrained shortest path first) protocol, BGP (Border Gateway Protocol, border gateway protocol). [0003] Taking...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/703H04L45/24H04L45/28H04L45/50
CPCH04L45/22H04L45/302H04L45/50H04L45/123H04L43/0882H04L43/0829H04L43/087
Inventor 孙昌盛袁玉林刘小刚
Owner HUAWEI TECH CO LTD
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