Method and device for allocating transport-multiprotocol label switching and ring network protecting maintenance entity groups

Abstract

The invention provides a method for allocating transport-multiprotocol label switching and ring network protecting maintenance entity groups, which comprises the following steps: establishing a tunnel protecting group, and determining a working tunnel and a protecting tunnel of the tunnel protecting group, and an address of a next hop of the tunnel protecting group; and selecting a multiplex section protecting group to which the tunnel protecting group belongs, obtaining addresses of a next hop of a multiplex section of the multiplex section protecting group in two directions, comparing the addresses of the next hop of the multiplex section in the two directions and the address of the next hop of the tunnel protecting group, and if the address of the next hop of the multiplex section in one direction is the same as the address of the next hop of the tunnel protecting group, allocating maintenance entity groups corresponding to the multiplex section in the direction as working maintenance entity groups, and maintenance entity groups corresponding to the multiplex section in the other direction as protecting maintenance entity groups. The invention also provides a device for allocating transport-multiprotocol label switching and ring network protecting maintenance entity groups. When allocating the tunnel protecting group, the method and the device have simple input data and high allocation accuracy.

Description

technical field [0001] The present invention relates to the field of packet transmission network, in particular to a T-MPLS (Transport-MultiProtocol Label Switching, transport multi-protocol label switching) ring network protection MEG (Maintenance Entity Group, maintenance entity group) configuration method and device. Background technique [0002] The transmission network in the metropolitan area network mainly adopts the ring network architecture, and the Ethernet technology must meet the carrier-grade requirements, and high reliability is the first problem that needs to be solved. Carrier-grade Ethernet utilizes the ring network topology. When a network device or link fails, it can quickly and effectively switch to the backup link, and ensure that existing services are not affected, meeting the requirement of 50ms protection switching. T-MPLS is a packet transmission technology recommended by ITU-T (International Telecommunication Union Telecommunication Standardization ...

AI Technical Summary

Problems solved by technology

In ring network protection, there are the following methods for configuring the working MEG and protection MEG of the TMS layer of the tunnel protection group: directly manually specify the working MEG and protection MEG of the tunnel protection group, and specify the ring network protection group. It is possible that the protected tunnel is not located on the multiplex section where the selected MEG is located, resulting in an error in the configuration of the tunnel protection group, that is, the existing implementation requires too strict input data, which may cause configuration exceptions

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