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Event processing method and equipment based on PSC (Protection State Coordination) message

A technology of event processing and message, applied in the field of communication, can solve problems such as inability to switch traffic paths, inconsistent status of protection group devices, etc., and achieve the effect of consistent status

Active Publication Date: 2015-07-22
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the PSC protocol, the devices in the protection group only receive and process PSC packets, and process them according to the PSC packets. When the PSC protocol is not configured on the peer device or is canceled after the PSC protocol is configured, the local device still waits for the peer device. message, without state transition, resulting in inconsistent device states at both ends of the protection group, and the traffic path cannot be switched

Method used

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  • Event processing method and equipment based on PSC (Protection State Coordination) message
  • Event processing method and equipment based on PSC (Protection State Coordination) message
  • Event processing method and equipment based on PSC (Protection State Coordination) message

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Embodiment Construction

[0041] Such as figure 2 As shown, it is a schematic diagram of the format of the PSC message. On the basis of the existing message type, a message type is added in the present invention. This message type is used to indicate whether the device enables the PSC protocol. If the device enables the PSC protocol, the device will start bidirectional switching, and send a PSC message carrying the information to start bidirectional switching to the peer device; if the device enables the PSC protocol and then disables the PSC protocol, the device will stop bidirectional switching, and Before disabling the PSC protocol, send a PSC message carrying information to stop bidirectional handover to the peer device.

[0042] exist figure 2 , the message type is Start / Stop bidirectional switching (start / stop bidirectional switching). In practical applications, the Request field of the PSC message can be set to a specified type identifier (such as 0001) to indicate that the message type is St...

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Abstract

The invention discloses an event processing method and equipment based on a PSC (Protection State Coordination) message. The method comprises the following steps that local terminal equipment receives a first PSC message from opposite terminal equipment; if the first PSC message carries information that the opposite terminal equipment starts bidirectional switching, the local terminal equipment processes local terminal events and opposite terminal events; and if the first PSC message carries information that the opposite terminal equipment stops bidirectional switching, the local terminal equipment processes the local terminal events. In the invention, a protection group can be protected to carry out switching normally.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a PSC message-based event processing method and equipment. Background technique [0002] MPLS (Multi-Protocol Label Switching, multi-protocol label switching) TE (Traffic Engineering, traffic engineering) is a technology that combines traffic engineering technology with MPLS. Through MPLS TE, the path through which traffic flows can be accurately controlled, thereby avoiding congested nodes, solving the problem that some paths are overloaded and other paths are idle, and making full use of existing bandwidth resources; and MPLS TE is establishing LSP (Label Switching Path, Label Switching Path) During the process of the tunnel, resources can be reserved to ensure the quality of service. [0003] Such as figure 1 As shown, it is a schematic diagram of the network model of MPLS TE tunnel carrying service traffic. A TE tunnel is established in the MPLS network, and the serv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L29/06H04L45/28
Inventor 刘绍洋郜忠华
Owner XINHUASAN INFORMATION TECH CO LTD
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