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Information transmission method, communication device and communication system

A technology of information transmission and communication devices, which is applied in the field of communication, can solve the problems of increasing the number of TELSA packets and affecting the performance of network routing, and achieve the effects of improving network routing performance, reducing a large number of occupations, and reducing the number

Active Publication Date: 2011-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the research and practice of this method, the inventors of the present invention found that the flooding mechanism of the prior art is more suitable for a single-layer network, but for a multi-layer network, if this flooding mechanism is still used, due to the TE chain The number of roads and control channels is more than that of a single-layer network, which will cause the number of TELSA packets flooded in the network to increase exponentially, seriously affecting the routing performance of the network

Method used

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  • Information transmission method, communication device and communication system
  • Information transmission method, communication device and communication system
  • Information transmission method, communication device and communication system

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Experimental program
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Embodiment 3

[0053] In the third embodiment, the layer filtering rules of each node are pre-configured, and the layer filtering rules of each node may be the same or different. The layer filtering rule includes the corresponding relationship between the layer type of the control channel and the layer type of the traffic engineering link, and the corresponding relationship includes allowing flooding data packets and prohibiting flooding data packets. The layer filtering rules may be shown in Table 1 below. Among them, the horizontal direction represents the layer type of the control channel, the vertical direction represents the layer type of the TE link, and the horizontal and vertical intersections represent the local TE link corresponding to the layer type x (x=1, 2, 3.... Whether the TE LSA packet is allowed to be flooded on the local control channel whose layer type is y (x=1, 2, 3...n), the value is allowed or prohibited.

[0054]

[0055] Table 1

[0056] When a node generates a...

Embodiment approach 1

[0096] A data packet obtaining unit 51, configured to locally obtain a data packet including attribute information of a traffic engineering link in a multi-layer network;

[0097] The channel selection unit 52 is configured to search out a control channel that allows flooding data packets from preset filtering rules according to the layer type of the traffic engineering link corresponding to the attribute information of the traffic engineering link in the data packet, so The above filter rules include the corresponding relationship between the layer type of the control channel and the layer type of the traffic engineering link;

[0098] A data packet sending unit 53, configured to send the data packet from the control channel allowing flooding of data packets to the connected neighboring communication device.

Embodiment approach 2

[0100] A data packet obtaining unit 51, configured to obtain a data packet from non-locally in a multi-layer network;

[0101] The channel selection unit 52 is configured to determine the layer type of the control channel that receives the data packet; use the control channel that is the same as the layer type of the control channel that receives the data packet as the control channel that allows flooding of the data packet;

[0102] A data packet sending unit 53, configured to send the data packet from the control channel allowing flooding of data packets to the connected neighboring communication device.

[0103] The communication device may further include: an identification unit 54 .

[0104] The identifying unit 54 is configured to identify the layer type through a layer type field alone, or identify the layer type through a combination of a coding type field and a signal type field.

[0105] Figure 6 It is a schematic structural diagram of the communication system of ...

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Abstract

The embodiment of the invention discloses an information transmission method, a communication device and a communication system. The method comprises the following steps of: acquiring a data packet which contains attribute information of a traffic engineering link from local in a multi-layer network; searching a control channel which allows the data packet to flood from a predetermined filtering rule according to a layer type of the traffic engineering link corresponding to the attribute information of the traffic engineering link in the data packet, wherein the filtering rule comprises the corresponding relationship between the layer type of a control channel and the layer type of the traffic engineering link; and transmitting the data packet to a connected neighboring node from the control channel which allows the data packet to flood. The embodiment of the invention also provides the corresponding communication device and the corresponding communication system. The technical scheme of the embodiment of the invention can improve network routing performance in an information transmission process.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an information transmission method, a communication device and a communication system. Background technique [0002] A network composed of nodes with multiple switching granularities or technologies is called a multi-layer network (Multi-layer Network), and a control plane is superimposed on the network to form a multi-layer Automatically Switched Optical Network (ASON, Automatically Switched Optical Network) / general multi-layer Protocol Label Switching (GMPLS, Generalized Multi-Protocol Label Switching) network. In the multi-layer ASON / GMPLS network, there are a variety of traffic engineering (TE, Traffic Engineering) links with different switching types and capacities, and there are also control channels, including the inherent in-band / fiber control channels and virtual TEs of the underlying links A new in-band / in-fiber control channel formed by the communicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q11/00H04L45/50
CPCH04L45/50
Inventor 孙俊
Owner HUAWEI TECH CO LTD
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