JP2015171032A5 - - Google Patents

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JP2015171032A5
JP2015171032A5 JP2014045421A JP2014045421A JP2015171032A5 JP 2015171032 A5 JP2015171032 A5 JP 2015171032A5 JP 2014045421 A JP2014045421 A JP 2014045421A JP 2014045421 A JP2014045421 A JP 2014045421A JP 2015171032 A5 JP2015171032 A5 JP 2015171032A5
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Prior art keywords
optical line
line unit
standby
side device
subscriber side
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JP2014045421A
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JP2015171032A (en
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Priority to JP2014045421A priority Critical patent/JP2015171032A/en
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Description

上記課題を解決するために、本発明のある態様のPONシステムは、冗長に設けられた運用系光回線ユニットと予備系光回線ユニットを備える局側装置と、局側装置と通信を行う加入者側装置と、を備えるPONシステムであって、運用系光回線ユニットから予備系光回線ユニットへの冗長切替処理が行われる前に、予備系光回線ユニットと加入者側装置との間の接続の正常性が確立され、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確認される。 In order to solve the above-described problems, a PON system according to an aspect of the present invention includes a station-side device including redundant operation-system optical line units and standby-system optical line units, and a subscriber communicating with the station-side apparatus. A PON system including a side device, and before the redundant switching process from the active optical line unit to the standby optical line unit is performed, the connection between the standby optical line unit and the subscriber side device is performed. Normality is established, and the standby optical line unit and the subscriber side apparatus are exchanged between the standby optical line unit and the subscriber side apparatus in a pseudo manner by exchanging GATE frames and REPORT frames. normality of the connection between the Ru is confirmed.

本発明の別の態様は、局側装置である。この装置は、冗長に設けられた運用系光回線ユニットと予備系光回線ユニットを備え、加入者側装置と通信可能に構成された局側装置であって、運用系光回線ユニットから予備系光回線ユニットへの冗長切替処理が行われる前に、予備系光回線ユニットと加入者側装置との間の接続の正常性が確立され、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確認される。 Another aspect of the present invention is a station-side device. This apparatus is a station-side apparatus that includes a redundant operation system optical line unit and a standby system optical line unit, and is configured to be able to communicate with a subscriber side apparatus. before the redundancy switching process to the line units is carried out, the normality is establishing the connection between the protection optical line unit and the subscriber unit, between the subscriber units and the protection optical line unit in by performing the pseudo exchange of GATE frame and REPORT frame, the normality of the connection between the protection optical line unit and the subscriber unit Ru is confirmed.

本発明のさらに別の態様は、冗長切替方法である。この方法は、加入者側装置と通信可能に構成された局側装置における運用系光回線ユニットから予備系光回線ユニットへの冗長切替方法であって、運用系光回線ユニットから予備系光回線ユニットへの冗長切替処理が行われる前に、予備系光回線ユニットと加入者側装置との間の接続の正常性を確立し、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性を確認する。
Yet another aspect of the present invention is a redundancy switching method. This method is a redundant switching method from an active optical line unit to a standby optical line unit in a station side apparatus configured to be able to communicate with a subscriber side apparatus, and the active optical line unit to the standby optical line unit. Before the redundancy switching process is performed, the normality of the connection between the standby optical line unit and the subscriber side apparatus is established, and the standby optical line unit and the subscriber side apparatus are simulated. The normality of the connection between the backup optical line unit and the subscriber side device is confirmed by exchanging the GATE frame and the REPORT frame .

Claims (5)

冗長に設けられた運用系光回線ユニットと予備系光回線ユニットを備える局側装置と、
前記局側装置と通信を行う加入者側装置と、
を備えるPONシステムであって、
前記運用系光回線ユニットから前記予備系光回線ユニットへの冗長切替処理が行われる前に、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確立され、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確認されることを特徴とするPONシステム。
A station-side apparatus comprising redundant operation system optical line units and standby system optical line units;
A subscriber side device communicating with the station side device;
A PON system comprising:
Before the redundancy switching process from the active optical line unit to the standby optical line unit is performed, normality of connection between the standby optical line unit and the subscriber side device is established, and the standby By artificially exchanging a GATE frame and a REPORT frame between the system optical line unit and the subscriber side device, the normality of the connection between the backup system optical line unit and the subscriber side device is improved. PON system according to claim Rukoto been confirmed.
前記運用系光回線ユニットから前記予備系光回線ユニットに冗長切替処理が行われる前に、前記運用系光回線ユニットのPONクロックと同期するよう前記予備系光回線ユニットのPONクロックが補正されることを特徴とする請求項1に記載のPONシステム。   Before the redundant switching process is performed from the active optical line unit to the standby optical line unit, the PON clock of the standby optical line unit is corrected so as to be synchronized with the PON clock of the active optical line unit. The PON system according to claim 1. 前記予備系光回線ユニットのPONクロックの補正は、前記加入者側装置から受信したMPCP REPORTフレームに含まれるタイムスタンプと、前記運用系光回線ユニットから取得したRTTに基づいてなされることを特徴とする請求項2に記載のPONシステム。 The correction of the PON clock of the standby optical line unit is performed based on the time stamp included in the MPCP REPORT frame received from the subscriber side apparatus and the RTT acquired from the operational optical line unit. PON system according to claim 2. 冗長に設けられた運用系光回線ユニットと予備系光回線ユニットを備え、加入者側装置と通信可能に構成された局側装置であって、
前記運用系光回線ユニットから前記予備系光回線ユニットへの冗長切替処理が行われる前に、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確立され、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性が確認されることを特徴とする局側装置。
A station side device comprising a redundant operating system optical line unit and a standby system optical line unit, configured to be able to communicate with a subscriber side device,
Before the redundancy switching process from the active optical line unit to the standby optical line unit is performed, normality of connection between the standby optical line unit and the subscriber side device is established, and the standby By artificially exchanging a GATE frame and a REPORT frame between the system optical line unit and the subscriber side device, the normality of the connection between the backup system optical line unit and the subscriber side device is improved. confirmed station apparatus according to claim Rukoto.
加入者側装置と通信可能に構成された局側装置における運用系光回線ユニットから予備系光回線ユニットへの冗長切替方法であって、
前記運用系光回線ユニットから前記予備系光回線ユニットへの冗長切替処理が行われる前に、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性を確立し、前記予備系光回線ユニットと前記加入者側装置との間で擬似的にGATEフレームとREPORTフレームのやりとりを行うことで、前記予備系光回線ユニットと前記加入者側装置との間の接続の正常性を確認することを特徴とする冗長切替方法。
A redundancy switching method from a working optical line unit to a standby optical line unit in a station side apparatus configured to be communicable with a subscriber side apparatus,
Before the redundancy switching process from the active optical line unit to the standby optical line unit is performed, normality of connection between the standby optical line unit and the subscriber side device is established , By artificially exchanging a GATE frame and a REPORT frame between the system optical line unit and the subscriber side device, the normality of the connection between the backup system optical line unit and the subscriber side device is improved. A redundancy switching method characterized by checking .
JP2014045421A 2014-03-07 2014-03-07 Pon system, optical line terminal, and redundancy switching method Withdrawn JP2015171032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014045421A JP2015171032A (en) 2014-03-07 2014-03-07 Pon system, optical line terminal, and redundancy switching method

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Application Number Priority Date Filing Date Title
JP2014045421A JP2015171032A (en) 2014-03-07 2014-03-07 Pon system, optical line terminal, and redundancy switching method

Publications (2)

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JP2015171032A JP2015171032A (en) 2015-09-28
JP2015171032A5 true JP2015171032A5 (en) 2016-12-28

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JP7380434B2 (en) 2020-06-10 2023-11-15 住友電気工業株式会社 Communication system, station equipment and communication method

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