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Tunnel restraint information sending, receiving method and device

A technology for constraining information and sending methods, applied in the field of data network communication, and can solve problems such as inability to implement tunnel deployment

Inactive Publication Date: 2016-06-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method and device for sending and receiving tunnel constraint information, so as to solve the problem that the deployment of all tunnel paths cannot be realized in the prior art

Method used

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  • Tunnel restraint information sending, receiving method and device
  • Tunnel restraint information sending, receiving method and device
  • Tunnel restraint information sending, receiving method and device

Examples

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Embodiment 1

[0036] The inventor of the present application proposes that the existing object ERO (ExlucdeRouteObject) in RSVP-TE can be used to constrain the route calculation. In this way, the corresponding constraint information can be carried when the loose nodes perform path calculation.

[0037] Based on the above ideas, this embodiment provides a method for sending RSVP-TE tunnel restriction information, which mainly includes the following operations:

[0038] When there are loose points in the establishment of a tunnel, the head node sets the constraints between every two loose points in the tunnel, calculates the path between the head node and the first loose point, and passes the protocol message The calculated path information between the head node and the first loose point and the constraints between every two loose points are transmitted to the subsequent nodes, wherein the constraints between every two loose points are used Path exclusion based on loose node path computation...

Embodiment 2

[0161] This embodiment provides a device for sending RSVP-TE tunnel restriction information, which can be placed in a head node, and which at least includes the following units.

[0162] The path processing unit, when there are loose points in the establishment of a tunnel, sets the constraint conditions between every two loose points in the tunnel, and calculates the path between this node and the first loose point;

[0163] The transmission unit transmits the calculated path information from the current node to the first loose point and the constraints between every two loose points to subsequent nodes through protocol messages, wherein every two loose points Constraints between points are used for path exclusion in loose node path computation.

[0164] The above-mentioned transmission unit may carry the constraint condition between every two loose points through the object ERO of the protocol message. Preferably, the path information between every two loose points is carri...

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PUM

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Abstract

The invention discloses a tunnel restraint information sending, receiving method and device and relates to the field of data network communication. The tunnel restraint information sending method disclosed by the invention comprises following steps of when there are loose points in building a tunnel, setting the restraint condition between every two loose points in the tunnel by a head node; calculating a route from the head node to a first loose point; transmitting the calculated route information from the head node to the first loose point and the restraint condition between every two loose points to each follow-up node through protocol messages, wherein the restraint condition between every two loose points is used for route exclusion in calculating the loose point route. The invention also discloses a tunnel restraint information receiving method and tunnel restraint information sending and receiving device. According to the technical solution provided by the invention, the restraint of each segment of route can be deployed through extending a new sub-object; and the calculated tunnel route conforms to the deployment demand better.

Description

technical field [0001] The invention relates to the field of data network communication, specifically, a scheme for transmitting tunnel restriction information of an RSVP-TE tunnel during tunnel establishment. Background technique [0002] RSVP-TE (ResourceReservationProtocol-TrafficEngineer, resource reservation protocol based on traffic engineering) is a traffic engineering technology based on MPLS. The forwarding of service traffic in the TE tunnel is realized through the four components of information release, path calculation, signaling interaction (RSVP-TE), and traffic forwarding. [0003] The current network, especially the transmission of financial data, has strict requirements on the selection of paths, such as the cost, delay, and jitter of transmission links. Therefore, when the tunnel is established, these constraint conditions need to be submitted to the CSPF calculation unit for constraint calculation. These constraints need to be passed to downstream nodes ...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/913H04L47/724
CPCH04L12/46
Inventor 付志涛
Owner ZTE CORP
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