Application of ERPS protocol in MPLS network

Abstract

The invention discloses an application of an ERPS protocol in an MPLS network, and relates to the technical field of Ethernet communication. According to the application of the ERPS protocol in the MPLS network, an AC main interface is added to an ERPS main ring, meanwhile, a VLAN of a sub-interface of the AC main interface serves as a protocol message channel to control an ERPS state machine, andwhether the AC sub-interface in the ERPS ring is blocked or unblocked is calculated through the ERPS ring protocol state machine. Problems of excessive number of the ERPS rings and system resource waste caused by distributing the VLAN with blocked data streams to different sub-interfaces in the ERPS ring with one sub-interface added in at each time are overcome, application of the ERPS protocol in the MPLS network is realized, and higher data transmission stability is achieved.

Description

technical field [0001] The invention relates to the technical field of Ethernet communication, in particular to an application of the ERPS protocol on the MPLS network. Background technique [0002] ERPS is a link layer protocol specially applied to the Ethernet ring. It can prevent the broadcast storm caused by the data loop in the Ethernet ring; when a link on the Ethernet ring is disconnected, it can quickly activate the backup link to Restore communication between the nodes on the ring network. The ERPS protocol has the characteristics of fast topology convergence (less than 50ms) and the convergence time has nothing to do with the number of nodes on the ring network. However, the protocol model defined by the standard protocol can be well adapted to use in a pure layer 2 switched network, but not particularly adaptable to an MPLS network, especially an access link (AttAChment Circuit, AC for short). Only sub-interfaces of the AC interface have corresponding VLANs, and...

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Problems solved by technology

However, the protocol model defined by the standard protocol can be well adapted to use in a pure layer 2 switching network, but in an MPLS network, especially on an access link (AttAChment Circuit, AC for short), the adaptability is not particularly good

Only sub-interfaces of the AC interface have corresponding VLANs, and there are multiple sub-interfaces under a main interface. If a sub-interface is added to the ERPS ring each time, the VLANs of the data flow to be blocked are distributed on different sub-interfaces. It will lead to a large number of rings, a serious waste of system resources

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