CN101150372B - Online reduction method without service interruption for optical transmission multiplexing protection loop network - Google Patents

Online reduction method without service interruption for optical transmission multiplexing protection loop network Download PDF

Info

Publication number
CN101150372B
CN101150372B CN2007101636442A CN200710163644A CN101150372B CN 101150372 B CN101150372 B CN 101150372B CN 2007101636442 A CN2007101636442 A CN 2007101636442A CN 200710163644 A CN200710163644 A CN 200710163644A CN 101150372 B CN101150372 B CN 101150372B
Authority
CN
China
Prior art keywords
capacity
capacity reducing
optical fiber
webmaster
configuration information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2007101636442A
Other languages
Chinese (zh)
Other versions
CN101150372A (en
Inventor
汪学蓉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN2007101636442A priority Critical patent/CN101150372B/en
Priority to PCT/CN2007/003982 priority patent/WO2009049458A1/en
Publication of CN101150372A publication Critical patent/CN101150372A/en
Application granted granted Critical
Publication of CN101150372B publication Critical patent/CN101150372B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

This invention discloses a method for non-interrupted on-line capacity-reduction for services of protecting ring networks of light transmitted multiplex segments including the following steps: determining a capacity-reduction section with the capacity to be reduced from a network management layer, and sending down configuration information associated with the capacity-reduced optical fiber connection and configuration information associated with ring protection relation after the capacity-reduction to a synchronous digital system device through the network management; sending down a network management rearrangement instruction at an east and west section of a capacity-reduction net element through the network management; after the synchronous digital system device receives the network management rearrangement instruction, rearranging all the service passing the capacity-reduction section to a protection channel according to the configuration information associated with the capacity-reduced optical fiber connection and the configuration information associated with ring protection relation after the capacity-reduction; judging whether all the service passing the capacity-reduction section is rearranged to the protection channel, judging whether the configuration information associated with the capacity-reduced optical fiber connection and the configuration information associated with ring protection relation after the capacity-reduction are right, if so for both, changing actual optical fiber connection into the optical fiber connection after the capacity-reduction.

Description

The business of optical transmission multiplexing protection looped network does not have the online capacity reduction method of interruption
Technical field
The present invention relates to the communications field, the business that relates more specifically to a kind of optical transmission multiplexing protection looped network does not have the online capacity reduction method of interruption.
Background technology
Self-healing ability is an important feature of optical transport network; the ITU-TG.841 of International Telecommunication Association suggestion " classification and the characteristic of SDH network protection structure " is to SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy; be called for short SDH)/the optical transfer network self-healing function of synchronous optical network (Synchronous Optical NETwork is called for short SONET) is described in detail.Wherein, modal have two a fibres or four-fiber bidirectional multiplex section annular share protect.
The MSP-ring technology has obtained using widely already.Along with the expansion of operation scale, many operators have proposed dilatation or capacity reducing, upgrading or the demand of planning again to multiplex section protective ring.Because such demand is based on the network that has put into effect, therefore must non-interrupting service when planning looped network again.
The relevant patent that much relates to the network capacity extension or upgrading is arranged, but Shang Weijian there is the relevant patent that relates to optical-fiber network capacity reducing aspect both at home and abroad.
Several pieces of relevant patents that relate to the optical-fiber network dilatation have: the patent of CN03127250 number " method of protection subnet dilatation in the optical-fiber network " by name provides a kind of dilatation guide at various protection subnets (comprising ring protection, chain protection etc.) from the webmaster aspect; reduce operate miss and the inconsistent problem that causes of data; propose the part manual operations is carried out by webmaster guide; thereby shorten the time of whole dilation process; reduce time of service interruption, but in the operating time, still have service disconnection.The dilatation that the patent of CN200410004982 number " a kind of expansion method of wavelength division multiplexed optical network and equipment in the capacity expansion " by name mainly solves multiplexing intersection equipment, the especially processing of different vendor's butt joint.The patent of CN02134320 number " a kind of optical fiber ring network system and OADM module and upgrade expanding method thereof " by name mainly solves how to carry out the professional problem of interrupting dilatation of not having in WDM, this method mainly utilizes the mouth of the glistening light of waves up and down of wave-division device as the dilatation mouth, the dilatation problem of unresolved SDH loop.Protection has proposed a kind of professional expansion method that interrupts that do not have to the patent of CN200410030888 number " a kind of optical transmission recurrent network does not have the professional expansion method that interrupts " by name at the multiplex section chain.
Summary of the invention
The objective of the invention is to, provide a kind of business of optical transmission multiplexing protection looped network not have the online capacity reduction method of interruption.
Business according to optical transmission multiplexing protection looped network of the present invention does not have the online capacity reduction method of interruption, may further comprise the steps: determine to carry out the capacity reducing section of capacity reducing from the webmaster layer, and the configuration information that the ring protection behind the configuration information that relevant optical fiber behind the capacity reducing is connected by webmaster and the relevant capacity reducing concerns is issued to synchronizing digital hierarchy equipment; Issue webmaster by webmaster successively at the transmeridional capacity reducing section of capacity reducing network element and switch order; Synchronizing digital hierarchy equipment is receiving after webmaster switches order, and the configuration information that the ring protection behind the configuration information that connects according to the optical fiber behind the relevant capacity reducing and the relevant capacity reducing concerns will be through all switching services of capacity reducing section to protecting passage; Judge whether and all to be switched to the protection passage through all business of capacity reducing section; judge whether the configuration information that the ring protection behind configuration information that the optical fiber behind the relevant capacity reducing connects and the relevant capacity reducing concerns is correct; and all be under the situation that is in judged result, actual fiber is connected the optical fiber that changes to behind the capacity reducing connect.
It is further comprising the steps of not have the online capacity reduction method of interruption according to the business of optical transmission multiplexing protection looped network of the present invention: after the optical fiber connection that actual fiber is connected after changing to capacity reducing; issue webmaster by webmaster to synchronizing digital hierarchy equipment and switch the order delete instruction; synchronizing digital hierarchy equipment is carried out webmaster and is switched the order delete instruction, all switches back service aisle through all business of capacity reducing section.
The present invention switches the business on the protection passage by before carrying out the capacity reducing operation capacity reducing network element east orientation and west being executed ring switching to the business of section, makes the disconnected fibre of capacity reducing section not have influence to the correct execution of original business.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 does not have the flow chart that interrupts online capacity reduction method and step thereof according to the business of the optical transmission multiplexing protection looped network of the embodiment of the invention;
Fig. 2 is the schematic diagram that the multiplex section of being made up of six network elements under the normal condition is shared ring;
Fig. 3 is the schematic diagram that the multiplex section after the section between base station A and the base station B breaks down is shared the service transmission path in the ring;
Fig. 4 is the schematic diagram that two fiber complex sections of being made up of five network elements under the normal condition are shared ring;
Fig. 5 is that contract two fiber complex sections behind the E of base station are shared the schematic diagram of ring;
Fig. 6 is the schematic diagram that the four fiber complex section of being made up of five network elements under the normal condition is shared ring;
Fig. 7 is that contract four fiber complex section behind the E of base station is shared the schematic diagram of ring;
Two fibres that Fig. 8 is made up of five network elements or four fiber complex section are shared ring and are shared the connection before the capacity reducing and the schematic diagram of professional trend;
Fig. 9 is the business trend of the shared ring of multiplex section after webmaster is switched order is carried out in a schematic diagram from the west of capacity reducing network element E to section;
Figure 10 is that the west of capacity reducing network element E is to all carrying out the schematic diagram that multiplex section after webmaster is switched order is shared the business trend of ring with the east orientation section;
Figure 11 connects the optical fiber change to behind the capacity reducing with optical fiber to connect, do not delete webmaster and switch the schematic diagram that multiplex section after the order is shared the business trend of ring;
Figure 12 connects the optical fiber change to behind the capacity reducing with optical fiber to connect and delete webmaster and switch the schematic diagram that multiplex section after the order is shared the business trend of ring; And
Figure 13 does not have another flow chart that interrupts online capacity reduction method according to the business of the optical transmission multiplexing protection looped network of the embodiment of the invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
With reference to figure 1, illustrate according to the optical transmission multiplexing of the embodiment of the invention and protect the business of looped network not have the online capacity reduction method of interruption.As shown in Figure 1, the business of this optical transmission multiplexing protection looped network does not have the online capacity reduction method of interruption and may further comprise the steps: S102, determine to carry out the capacity reducing section of capacity reducing from the webmaster layer, and the configuration information that the ring protection behind the configuration information that relevant optical fiber behind the capacity reducing is connected by webmaster and the relevant capacity reducing concerns is issued to synchronizing digital hierarchy equipment; S104 issues webmaster by webmaster successively at the East and West direction section of capacity reducing network element and switches order; S106, synchronizing digital hierarchy equipment is receiving after webmaster switches order, and the configuration information that the ring protection behind the configuration information that connects according to the optical fiber behind the relevant capacity reducing and the relevant capacity reducing concerns will be through all switching services of capacity reducing section to protecting passage; And S108; judge whether and all to be switched to the protection passage through all business of capacity reducing section; and judge whether the configuration information that the ring protection behind configuration information that the optical fiber behind the relevant capacity reducing connects and the relevant capacity reducing concerns is correct; in judged result all is under the situation that is, actual fiber is connected the optical fiber change to behind the capacity reducing connect.
It is further comprising the steps of that the business of optical transmission multiplexing protection looped network shown in Figure 1 does not have the online capacity reduction method of interruption: after the optical fiber connection that actual fiber is connected after changing to capacity reducing; issue webmaster by webmaster to synchronizing digital hierarchy equipment and switch the order delete instruction; synchronizing digital hierarchy equipment is carried out webmaster and is switched the order delete instruction, all switches back service aisle through all business of capacity reducing section.
Below in conjunction with example, embodiments of the present invention are further set forth.The ring switching principle of two fine guard rings and four fine guard rings is identical, and difference only is that the service aisle of two fine guard rings and protection passage are in same optical fiber, and service aisle wherein occupies preceding 1/2 bandwidth, and the protection passage occupies back 1/2 bandwidth; And the service aisle of four fine guard rings occupies different individual fibers respectively with the protection passage.
Fig. 2 is the schematic diagram that the multiplex section of being made up of six network elements under the normal condition is shared ring.Fig. 3 is after the section between synchronous digital equipment network element (NODE) A and the network element NODE B breaks down, the professional transfer path that is switched to the protection passage from service aisle.
Fig. 4 is that two fiber complex sections of A, B, C, D, five network elements compositions of E are shared the schematic diagram of ring.Fig. 5 is that contract two fiber complex sections that constitute behind the network element E among Fig. 4 are shared the schematic diagram of ring.
Fig. 6 is that the four fiber complex section of A, B, C, D, five network elements compositions of E is shared the schematic diagram of ring.Fig. 7 is that the contract four fiber complex section that constitutes behind the network element E among Fig. 6 is shared the schematic diagram of ring.
Fig. 8 is that two fibres or preceding connection and the business of the shared ring of four fiber complex section capacity reducing that five network elements of A, B, C, D, E under the normal condition are formed moved towards schematic diagram.Fig. 9 is that the business of the multiplex section shared ring of west after section execution webmaster is switched order of capacity reducing network element E is moved towards schematic diagram.Figure 10 is that the east orientation section of capacity reducing network element E is also carried out webmaster and switched multiplex section after the order and share the business of ring and move towards schematic diagram.Figure 11 connects the shared business of encircling of multiplex section that connects after (NODE C east orientation optical fiber originally was connected to two-way with NODE E west, walked around NODE E, changed into NODE B west being connected to two-way) according to the new configuration behind the ring that contracts with optical fiber to move towards schematic diagram.Figure 12 is behind the capacity reducing and deletes webmaster and switch multiplex section after the order and share the business of ring and move towards schematic diagram.
To Figure 13, the specific implementation process of the shared ring of two fibres/four fiber complex section capacity reducing is described with reference to figure 8:
At first, as shown in Figure 8, wish to contract NODE E network element between NODE B and NODE C, then the capacity reducing section be NODE E west to two sections of east orientation, determine that by webmaster the optical fiber of these two sections connects (S1304), promptly NODE B west to, NODEE west to the plate groove item and the port numbers of east orientation, NODE C east orientation.Before carrying out capacity reducing, determine that earlier multiplex section shares ring and go up fault-free and do not have and switch (S1302), connect the optical fiber that is configured to behind the capacity reducing by webmaster change optical fiber and connect configuration (S1306), be that NODE C east orientation optical fiber was connected to two-way with NODE E west originally, NODE E east orientation optical fiber was connected to two-way with NODE B west originally, change into NODE B west to two-way connection of NODE C east orientation, issue amended connection configuration (S1308) from webmaster.
Then, be configured to ring protection relation configuration (S1310) behind the capacity reducing, i.e. deletion NODE E in former ring protection relation by webmaster change ring protection relation.Note; originally the APS of NODEA～NODE D identifies (Auto Protection Switch Identification; be called for short APS ID) remain unchanged; this moment NODE C the adjacent APS ID of the east orientation APS ID that is NODE B; the west of NODE B issues this configuration to the APS ID that adjacent APS ID is NODE C.
Then, issue webmaster by webmaster at the capacity reducing section and switch order, will all be switched to protection passage (S1312) through the work of capacity reducing section.That is, switch order at the downward hairnet pipe in NODE B west earlier, make work all be switched to the protection passage through the business of this capacity reducing section.Professional transfer path after issuing as shown in Figure 9.Issue webmaster at NODE C east orientation again and switch order, make work all be switched to the protection passage through the business of this capacity reducing section.Professional transfer path after issuing as shown in figure 10.
Then, confirm to connect optical fiber (S1314) according to the annexation behind the capacity reducing after the Forced Switch correct execution.If two fiber complex section ring protections then will connect NODE B west to being connected to changing a pair of optical fiber into two pairs of optical fiber of NODE C east orientation with NODE E east orientation, NODE E west, connect NODE B west to light mouth and NODE C east orientation light mouth.If four fiber complex section ring protection; then will connect NODE B west is connected to protecting light mouth and NODE E east orientation protection light mouth, NODE E west to change two pairs of optical fiber with NODE C east orientation work light mouth, NODE E west into to four pairs of optical fiber protecting light mouth and NODE C east orientation protection light mouth to work light mouth with NODE E east orientation work light mouth, NODE B west to work light mouth; a pair of connection NODE B west is to work light mouth and NODE C east orientation work light mouth, and another is to connecting NODE B west to protection light mouth and NODE C east orientation protection light mouth.Professional transfer path after the connection change as shown in figure 11.
At last, the webmaster that issues of deletion webmaster is switched order (S1316).Promptly delete the NODEB west and switch order to the webmaster that issues with NODE C east orientation.This moment, NODE B west was returned service aisle to the section that is connected with NODE C east orientation by the protection channel switching, and this moment, all business were got back to work, and capacity reducing work is finished, as shown in figure 12.
Before the optical fiber connection that optical fiber is connected after changing to capacity reducing, professional being switched to from service aisle protects switching of passage to take place twice.During optical fiber behind capacity reducing connects, professionally lead to always, and after the connection behind the capacity reducing and configuration are finished, cancel webmaster and switch order.Wherein, do not have the generation of switching when cancelling first Forced Switch, take place when cancelling second Forced Switch once to switch, business does not have interruption equally, and this has just guaranteed in the whole ring process that contracts business not to be had the influence of interruption.
In sum, the ingenious principle of having utilized MSP-ring to switch of the present invention.Promptly; deletion capacity reducing node when the new ring protection of configuration concerns; but other network elements are kept original APS ID; thereby issue when having an effect in new protection relation, the capacity reducing section can be kept the Forced Switch state always, and after disconnecting optical fiber the capacity reducing network element being removed from multiplexing ring; cancelling the stylish protection relation of Forced Switch that webmaster issues correctly has an effect; by cancelling of ring switching, make switching services return work, guaranteed in whole capacity reducing process that promptly business does not have interruption.Can prove further that by above-mentioned specific implementation process the present invention need not any extra development and resource, a kind of capacity reduction method of simple non-interrupting service promptly can be provided.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.

Claims (2)

1. the business of an optical transmission multiplexing protection looped network does not have the online capacity reduction method of interruption, it is characterized in that, may further comprise the steps:
Determine to carry out the capacity reducing section of capacity reducing from the webmaster layer, and the configuration information that the ring protection behind the configuration information that relevant optical fiber behind the capacity reducing is connected by webmaster and the relevant capacity reducing concerns is issued to synchronizing digital hierarchy equipment;
Issue webmaster by described webmaster successively at the transmeridional capacity reducing section of capacity reducing network element and switch order;
Described synchronizing digital hierarchy equipment is receiving after described webmaster switches order, the configuration information that ring protection behind the configuration information that connects according to the optical fiber behind the relevant capacity reducing and the relevant capacity reducing concerns will be through all switching services of described capacity reducing section to protecting passage; And
Judge whether all to be switched to described protection passage through all business of described capacity reducing section; judge whether the configuration information that the ring protection behind configuration information that the optical fiber behind the relevant capacity reducing connects and the relevant capacity reducing concerns is correct; and all be under the situation that is in judged result, actual fiber is connected the optical fiber that changes to behind the capacity reducing connect.
2. method according to claim 1 is characterized in that, and is further comprising the steps of:
After the optical fiber connection that actual fiber is connected after changing to capacity reducing, issue webmaster by described webmaster to described synchronizing digital hierarchy equipment and switch the order delete instruction, described synchronizing digital hierarchy equipment is carried out described webmaster and is switched the order delete instruction, all switches back service aisle through all business of described capacity reducing section.
CN2007101636442A 2007-10-15 2007-10-15 Online reduction method without service interruption for optical transmission multiplexing protection loop network Active CN101150372B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007101636442A CN101150372B (en) 2007-10-15 2007-10-15 Online reduction method without service interruption for optical transmission multiplexing protection loop network
PCT/CN2007/003982 WO2009049458A1 (en) 2007-10-15 2007-12-29 An online capacity-reduction method for non-stopped service of a protection ring network of an optical transmision multiple segment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101636442A CN101150372B (en) 2007-10-15 2007-10-15 Online reduction method without service interruption for optical transmission multiplexing protection loop network

Publications (2)

Publication Number Publication Date
CN101150372A CN101150372A (en) 2008-03-26
CN101150372B true CN101150372B (en) 2011-12-28

Family

ID=39250734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007101636442A Active CN101150372B (en) 2007-10-15 2007-10-15 Online reduction method without service interruption for optical transmission multiplexing protection loop network

Country Status (2)

Country Link
CN (1) CN101150372B (en)
WO (1) WO2009049458A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101610113B (en) * 2009-06-30 2011-09-21 宁波电业局 Optical fiber butting remote control method, system and server
CN102857955B (en) * 2011-06-30 2017-03-22 中兴通讯股份有限公司 Capacity expanding and retracting method and device of continuous services
CN103188095B (en) * 2011-12-29 2018-03-20 中兴通讯股份有限公司 A kind of method, webmaster and node device that looped network path is handled in Packet Transport Network
CN115412783A (en) * 2022-08-25 2022-11-29 云南电网有限责任公司玉溪供电局 SDH optical transmission network planning system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093543A1 (en) * 2004-03-23 2005-10-06 Koninklijke Philips Electronics N.V. Computer network access control system
CN1708030A (en) * 2004-06-11 2005-12-14 华为技术有限公司 System for controlling packet service network flow and method thereof
CN100442708C (en) * 2005-06-17 2008-12-10 上海华为技术有限公司 Method and system for active/standby backup

Also Published As

Publication number Publication date
CN101150372A (en) 2008-03-26
WO2009049458A1 (en) 2009-04-23

Similar Documents

Publication Publication Date Title
JP4070246B2 (en) Method and apparatus for optical bidirectional line switch type ring data communication system
JP3793400B2 (en) Addition / deletion arrangement, addition / deletion method, and communication system
CN1333554C (en) Method for combining multi-section protection and mesh network recovery
US7352966B2 (en) Method and apparatus for capacity-efficient restoration in an optical communication system
JP3390705B2 (en) Reverse compatible fault recovery in bidirectional multisection switched ring transmission systems
US6205158B1 (en) Network architectures with transparent transport capabilities
US8521024B2 (en) Long reach optical network
US20040076114A1 (en) Method and apparatus for shared protection in an optical transport network ring based on the ODU management
Wo et al. High-speed self-healing ring architectures for future interoffice networks
CN101150372B (en) Online reduction method without service interruption for optical transmission multiplexing protection loop network
CN101145870B (en) A method for non-interrupted service expansion in optical loop network
CN100440769C (en) Optical multiplex loop system
RU2394378C2 (en) Method, device and system for collective protection of group of optical channels
CN100596037C (en) Apparatus for providing node protection in optical network and implementing method thereof
EP1724972B1 (en) A service rerouting triggering method
RU2352070C2 (en) Method for increase of throughput capacity of optic linear network of data transfer without services interruption
EP1158831B1 (en) Interconnection between telecommunication MS-SPRING and SNCP ring networks
US7974185B2 (en) Three fiber line switched ring
CN100433670C (en) Logic multisection environment protective method based on different priority grade
CN101183910B (en) Linear protection method of optical network
CN1214551C (en) Optical fiber looped network system and optical add-drop multiplexing module and upgrade expanding method thereof
CN101345590B (en) SNCP business collocation method
US20030048747A1 (en) Transmission device
CN101299892B (en) Method for regulating tunnel service of synchronous digital hierarchy network
Shiragaki et al. Network resource advantages of bidirectional wavelength-path switched ring

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant