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Data transmission method and device

A data transmission method and table loading technology, which is applied in the communication field, can solve problems such as heavy maintenance workload, waste of table item resources and network processor instruction resources, and achieve the effect of saving instruction resources and reducing maintenance workload

Active Publication Date: 2019-01-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a data transmission method and device to at least solve the problem of large waste of table item resources and network processor instruction resources and heavy maintenance workload in the prior art

Method used

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  • Data transmission method and device
  • Data transmission method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0039] In this embodiment, a data transmission method is provided, figure 2 is a flow chart of data transmission according to an embodiment of the present invention, such as figure 2 As shown, the process includes the following steps:

[0040] Step S202, obtaining the base address of the policy table for the load sharing service and the fast rerouting service according to the pre-acquired service table;

[0041] Specifically, the data transmission method provided by the embodiment of the present invention can be applied to routing devices, and can be applied to cells covered by 2G networks, 3G networks or 4G networks. Routing devices provide load sharing services and fast rerouting services according to the service table. Unified policy table base address.

[0042] Step S204, obtain the first code corresponding to the load sharing service, read the policy table according to the first code and the base address of the policy table, and obtain the offset of the first multipat...

Embodiment 2

[0080] In this embodiment, a data transmission device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has already been described will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0081] image 3 is a structural block diagram of a data transmission device according to an embodiment of the present invention, such as image 3 As shown, the data transmission device includes: an acquisition module 31, a first code acquisition module 32, a first reading module 33, a second code acquisition module 34, a second reading module 35, a first information reading module 36 and a first information reading module 36. Two informati...

specific Embodiment

[0114] 1201. For a weighted load sharing path, take the least common divisor of the weight;

[0115] 1202. Decompose the non-minimum weight paths into M minimum weight paths;

[0116] 1203 , after performing the decomposition in 1202 , the weighted load sharing paths are virtualized into equal-cost load-sharing paths, which are uniformly processed as equal-cost load-bearing paths.

[0117] For example: an ECMP group contains two sharing links, one is a 1G bandwidth link (hereinafter referred to as 1G), and the other is a 10G bandwidth link (hereinafter referred to as 10G), if the size of the sharing table is defined as 32:

[0118] In the prior art, it is necessary to arrange 1G and 10G into 32 sharing strategy table entries, and the number of times of arrangement of 1G is: 32*1G / (1G+10G)=2 (rounded), and the number of times of arrangement of 10G It is: 32*10G / (1G+10G)=29 (rounded), if the remaining 1 item is arranged for 1G, it will cause the 1G sharing accuracy to exceed the ...

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Abstract

The invention discloses a data transmission method and device. The method includes: obtaining the base address of the policy table for the load sharing service and the fast rerouting service according to the service table obtained in advance; obtaining the first code corresponding to the load sharing service and reading the policy table according to the first code and the base address of the policy table to obtain the corresponding load The offset of the first multi-path egress encapsulation table of the sharing service; obtain the second code corresponding to the fast rerouting service and read the policy table according to the second code and the base address of the policy table to obtain the second multi-path egress encapsulation corresponding to the fast rerouting service The offset of the table; read the corresponding first multipath egress encapsulation table according to the offset of the first multipath egress encapsulation table to obtain the corresponding first egress encapsulation information; read the corresponding information according to the offset of the second multipath egress encapsulation table The corresponding second egress encapsulation information is obtained from the second multipath egress encapsulation table. The invention solves the problems of large waste of table entry resources and network processor instruction resources and heavy maintenance workload.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data transmission method and device. Background technique [0002] Equal Cost Multi-Path (ECMP for short) is a technique to improve the shortest path-based interior gateway routing protocol in IP networks. In the traditional shortest path algorithm, if two or more shortest paths exist at the same time, the algorithm will choose the optimal one. However, ECMP has been improved, and traffic is distributed among multiple equal-cost paths. [0003] Fast Re-Route (Fast Re-Route) is to ensure network reliability, establish a local backup path in advance, and when a link or node fails, quickly switch the service from the failed path to the backup path before the route converges. [0004] Example of load sharing scenario: 1000 routes, each route is learned from 8 sharing links, this route forms load sharing, there are 8 egresses, each egress corresponds to an outbound MPLS label (e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/721
CPCH04L41/00
Inventor 谢密张启申孟庆明
Owner ZTE CORP
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