Configuration method and system of circuit emulation service in passive optical network

Abstract

The invention discloses a configuration method of circuit emulation service (CES) in a passive optical network (PON). The method comprises the following steps: according to a CES template prestored on an optical link terminal (OLT), CES template information is configured on the OLT; pseudo-wire parameter is configured on the OLT; when an optical network unit (ONU) on the opposite terminal of the pseudo-wire is on-line, the OLT issues the CES template information and pseudo-wire parameter configured on the terminal to the ONU; the ONU performs the local configuration of the CES pseudo-wire according to the received CES template information and pseudo-wire parameter; after the configuration succeeds, a successful configuration message is reported to the OLT; after the OLT receives the successful configuration message sent by the ONU, the OLT issues a target parameter query message to the ONU; the ONU reports the target parameter stored in the local terminal to the OLT; and the OLT obtains the target parameter in the local configuration. The invention also discloses a configuration system of the CES in the PON.

Description

technical field [0001] The present invention relates to a passive optical network (PON, Passive Optical Network), in particular to a configuration method and system for a circuit emulation service (CES, Circuit Emulation Service) in the PON. Background technique [0002] At present, packet switching networks based on data packet transmission and switching are developing rapidly, but on the other hand, the existing Pseudosynchronous Digital Hierarchy (PDH) / Synchronous Digital Hierarchy (SDH) networks will exist for a long time, and a large number of Time division multiplexing (TDM) equipment will also continue to be used. Therefore, while developing the packet-switching network, it is necessary to protect the user's existing investment in TDM equipment, making it necessary to provide TDM service access and TDM data transparent transmission capabilities in the packet-switching network. In this environment, CES Technology came into being. [0003] In addition, as an important...

AI Technical Summary

Problems solved by technology

In the prior art, when CES is configured in the PON, the CES pseudowire is configured at both ends of the OLT and the ONU at the same time. Since the two ends of the pseudowire do not know whether the parameters configured at the opposite end are consistent with the local end during their respective configurations, so this The configuration method is error-prone, and this configuration method itself is relatively complicated

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