Method and system for service protection in multiple layers of networks
A multi-layer network and service protection technology, applied in the field of communications, can solve the problem of inability to coordinate protection of multi-layer networks, and achieve the effect of improving performance
Active Publication Date: 2010-01-06
HUAWEI TECH CO LTD
View PDF0 Cites 26 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] In view of this, the embodiments of the present invention provide a method and device for service protection in a multi-layer network, which solves the problem that the existing multi-layer network protection technology cannot coordinate protection among multi-layer networks, and improves the reliability of the transmission system. sex
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0031] Each layer of the multi-layer telecommunication network may adopt different equipment networking, and each layer of the network may have an independent protection method. Usually we refer to the upper layer network as the client layer network, and the lower layer network of the upper layer network as the service layer network, that is, each lower layer network relative to the upper layer network can be called the service layer network of the upper layer network. In the following, SDH (Synchronous Digital Hierarchy, Synchronous Digital System) / ASON network is used as the service layer network to carry the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention relates to the field of communication transmission and particularly discloses a method and a device for service protection in multiple layers of networks. The method comprises the following steps that: a client layer network starts the traffic engineering rerouting protection of a service influenced by a fault and switches the service influenced by the fault from a work path of the client layer to a protection path of the client layer; and a service layer network starts a rerouting restoration protection at a preset delay time. The device comprises a second fault detection unit used for detecting whether a link of the multiple layers of networks has a fault, a timer, a rerouting restoration unit used for starting rerouting and establishing a restoration path at a time set by the timer, and a second switching unit used for switching the service influenced by the fault to the restoration path of the service layer from a work path of the service layer. The method solves the problem that protection technology of multiple layers of networks in the prior art cannot realize the coordinative protection among the multiple layers of networks and improves the reliability of a transmission system.
Description
technical field [0001] The invention relates to the communication field, in particular to a method and system for service protection in a multi-layer network. Background technique [0002] At present, the design of telecommunication network basically adopts the classic layered structure, and different equipment may be used in each layer of network, and each layer of network has an independent protection mode. The carrier-class network has high reliability, and it is required to restore the service within a carrier-class recovery time of 50ms after a service failure occurs. [0003] A typical layered network networking form is that a transport layer network bears an IP (IP, Internet Protocol) layer network, and the transport layer network provides a transmission circuit for the IP layer network. Among them, the main protection mechanisms provided by the IP layer network are IGP (Interior Gateway Protocol, Interior Gateway Protocol) fast convergence and TE FRR (Traffic Engine...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56
Inventor 吴治平秦涛
Owner HUAWEI TECH CO LTD