CN100583702C - Method for realizing four fibre loop multiplying segment protection management - Google Patents
Method for realizing four fibre loop multiplying segment protection management Download PDFInfo
- Publication number
- CN100583702C CN100583702C CN 200410075033 CN200410075033A CN100583702C CN 100583702 C CN100583702 C CN 100583702C CN 200410075033 CN200410075033 CN 200410075033 CN 200410075033 A CN200410075033 A CN 200410075033A CN 100583702 C CN100583702 C CN 100583702C
- Authority
- CN
- China
- Prior art keywords
- protection
- optical fiber
- ring
- protected
- switching
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
A method for realizing protective management of four fibre ring multiplexing section includes forming four fibre ring by a pair of man fibre for transmitting main service and a pair of spare fibre for transmitting extra service ; setting protection set with identification protective relation on corresponding end node of both fibres ; forming protection set with protected unit , section protection unit and ring protection unit , using all above protection unit to protect relation management which carries out section rotation first to use spare fibre for transmitting main service when main fibre is fault then carries out ring rotation when spare fibre is also fault .
Description
Technical field
The present invention relates to the Synchronous Optical Network field, be specifically related to a kind of implementation method that in Synchronous Optical Network, realizes four fiber complex section ring protection management by the Q3 interface.
Background technology
Develop the raising network service quality that the network management development is proposed, the requirement that streamlines the network resource, reduces maintenance cost in order to adapt to telecommunications industry, the ITU-T of International Telecommunications Union (InternationalTelecommunication Union-Telecommunication Standardization Section) has proposed Telecommunication Management Network (Telecommunication Management Network) notion.The purpose of Telecommunication Management Network is the angle from worldwide telecommunication network, a kind of organized architecture and standardized interface are provided, make between the dissimilar management systems, can both carry out unified integrated maintenance and management according to the method for standard to whole telecommunications network with the mode exchange of management information of unanimity between management system and the telecommunication apparatus.
Telecommunication Management Network is divided into different logical levels to management function, as shown in Figure 1, be followed successively by Network Element Layer (NEL), NE management layer (EML), NML (NML), SML (SML) and Business Management Layer's five levels such as (BML) from top to bottom.The thought of TMN has obtained embodying more fully in the SDH technical system, and transmission network is the comparatively desirable model that can take the lead in realizing TMN.
Telecommunication Management Network is that the mode by manager/agency realizes various management objectives, and the manager is one group of relative notion with the agency.Manager and agency are the parts that the TMN management is used, and the manager sends administration order and receives agency's the response and the notice of loopback, realizes various management functions.The order that the proxy response manager sends is implemented concrete operation to relevant management object, and the manager that is notified to of object behavior is reacted in loopback.
The Q3 interface is manager in the Telecommunication Management Network (Manager) and the interface of agency between (Agent), and it not only comprises the communications protocol of OSI from one deck to seven layer, but also is included in administrative messag and Management Information Model (MIB) in the layer 7.
Flow index in Telecommunication Management Network has indicated the professional flow direction, and it changes along with the change of business.The foundation of the MO in case Q3 is correlated with (veneer intersects), flow index also generates with regard to corresponding dynamic.Flow index is divided into upstream pointer (US) and downstream pointer (DS).Its attribute description in ITU-T is:
downstreamConnectivityPointer?ATTRIBUTE
WITH?ATTRIBUTE?SYNTAX
ASN1DefinedTypesModule.DownstreamConnectivityPointer；
MATCHES?FOR?EQUALITY，SET-COMPARISON，
SET-INTERSECTION；
BEHAVIOUR
downstreamConnectivityPointerBehaviour?BEHAVIOUR
DEFINED?AS
“The?matching?for?equality?is?applicable?for?all?choices?of?the?syntax.
The?set?operations?are?permitted?only?when?the?choice?of?the?syntax
correspond?to?either?broadcast?or?concatenated?broadcast.”；；
REGISTERED?AS{m3100Attribute?19}；
upstreamConnectivityPointer?ATTRIBUTE
WITH?ATTRIBUTE?SYNTAX
ASN1DefinedTypesModule.ConnectivityPointer；
MATCHES?FOR?EQUALITY；
BEHAVIOUR
upstreamConnectivityPointerBehaviour?BEHAVIOUR
DEFINED?AS
“The?matching?for?equality?is?applicable?for?all?the?choices?of?the
syntax.”；；
REGISTERED?AS{m3100Attribute?49}；
In the Telecommunication Management Network layered system, as shown in Figure 1, NE management layer system (EMS) can provide the information of EMS layer by the Q3 interface to network management layer system NMS.Multiplying segment protection management is an important component part of network management, and network construction forms such as Linear multiplex section, two fiber complex section rings and four fiber complex section ring all need multiplying segment protection management.
Below be the switchover mode that example illustrates prior art with two fine rings (with other two fine ring of STM16 level): each combines the formation two-way services to two one-way optical fibers are arranged between the adjacent network element.The first eight of every pair of optical fiber time slot carrying working traffic, back eight time slots carrying extra traffic; Close in protection and to fasten, for a special network element, the west to the first eight time slot by the back eight time slots protection of east orientation, the first eight time slot of east orientation by the west to back eight time slots protection.When a certain section optical fiber breaks down, the adjacent network element of this section optical fiber is carried out switching operation, loaded service on the first eight time slot of fault optical fiber is transferred to back eight time slots, originally the extra traffic interruption of back eight time slots carrying on the optical fiber of protection.
But in the G774_3 of International Telecommunications Union suggestion; only provided the Q3 interface information model scheme of Linear multiplex section and two fiber complex section rings; do not provide Q3 interface information model scheme, so prior art does not also realize the method for four fiber complex section ring protection management by the Q3 interface to four fiber complex section ring protection management.
Modeling process to multiplex section protection among the G774_3 of prior art is as follows:
sdhMSProtectionUnit?MANAGED?OBJECT?CLASS
DERIVED?FROM?protectionUnit；
CHARACTERIZED?BY
sdhMSProtectionUnitPkg?PACKAGE
BEHAVIOUR?sdhMSProtectionUnitBeh；
ATTRIBUTES
channelNumber GET，
protectionStatus GET，
reliableResourcePointer?PERMITTED?VALUES
SDHProtASN1.SDHMSResourcePointer，
unreliableResourcePointer?PERMITTED?VALUES
SDHProtASN1.SDHMSResourcePointer；；；
CONDITIONAL?PACKAGES
sdhPriorityPkg?PRESENT?IF″this?is?a?1:n?system″，
lastAttemptResultPkg?PRESENT?IF″the?APS?protocol?is?used″，
extraTrafficControlPkg?PRESENT?IF″extra?traffic?may?be
suspended?and?resumed″；
REGISTERED?AS{g774-03MObjectClass?8}；
This scheme can be described protected resource by reliableResourcePointer, describe protection by unreliableResourcePointer and form preceding resource, the protection and the switch status of two fiber complex section rings and Linear multiplex section can be described well, description before the two fiber complex section ring switchings as shown in Figure 2, west 5 and east 6 are a pair of adjacent network element, the first eight of every pair of optical fiber time slot carrying working traffic, back eight time slots carrying extra traffic; Close in protection and to fasten, for some special network element, the west to the first eight time slot by the back eight time slots protection of east orientation, promptly first among Fig. 2 switches sign 111; The first eight time slot of east orientation by the west to the protection of back eight time slots, promptly second among Fig. 2 switches sign 112, this first and second PDPU that switches in the sign is used to identify protected protected location, PGPU is used to identify the protected location of protection.
Description behind the two fiber complex section ring switchings as shown in Figure 3; wherein: the description of sdhMSProtectionUnit with switch before identical; just change has taken place in the sensing of the flow index of corresponding unshielded destination point UCTP: when 6 optical fiber of playing the host break down; switching operation will be carried out in the adjacent network element west 5 of this section optical fiber; loaded service on the first eight time slot of fault optical fiber (east 6 main business) is transferred to back eight time slots, originally the extra traffic interruption of back eight time slots carrying on the optical fiber of protection.
The attribute of the protected location of this model of prior art can only support that distinguishing corresponding resource is protection/protected resource, and for the four fiber complex section ring, because there are two resource conservations in the protected resource of each of four fiber complex section ring, be segment protection resource and ring protection resource, the model of prior art can't distinguish all that to comprise resource be segment protection resource or ring protection resource; So the protection of expression four fiber complex section ring that can't be complete relation, the management implementation method that protection does not concern to four fibre loop multiplying segment in the prior art.
Therefore, there is defective in prior art, and awaits improving and development.
Summary of the invention
The implementation method that the purpose of this invention is to provide a kind of four fibre loop multiplying segment protection management; it is the method that in Synchronous Optical Network, realizes four fiber complex section ring protection management by the Q3 interface; overcome that can't to distinguish the segment protection resource in the prior art still be the ring protection resource; increase the attribute description byte; thereby effectively be applied to the protection management of four fiber complex section ring, make the four fiber complex section ring protection between NMS and EMS manage standard, effective more.
Concrete technical scheme of the present invention is as follows:
A kind of implementation method of four fibre loop multiplying segment protection management, described 4F Ring comprises and a pair ofly is used to transmit the main with optical fiber and a pair of standby optical fiber that is used to transmit extra traffic of working traffic, and main destination node with optical fiber and standby optical fiber correspondence is provided with the protection group that sign protection concerns; Wherein,
Described protection group includes protected location, the flag section of the protected business of sign and switches the segment protection unit of protection business in the relation and identify the professional ring protection unit of protection in the ring switching relation;
Described each protected location is used to protect relation management, under described master breaks down with optical fiber or artificially controls, preferentially carries out span switching, uses standby in the same way this working traffic of Optical Fiber Transmission of this network element; Also have under fault and the artificial control at this standby in the same way optical fiber, carry out ring switching, use reciprocal this working traffic of standby Optical Fiber Transmission.
Described method, wherein, described span switching to the processing mode of Q3 interface is, at first checks segment protection unit in the corresponding protection group according to the interface input information, according to the unreliable resource pointer of this segment protection unit, find the unshielded destination point of protection optical fiber correspondence; Then with the work flow of the protected Trail Termination Point of the protected location correspondence of protection group to this unshielded destination point that finds, simultaneously this protected location is updated to the span switching state.
Described method, wherein, described ring switching to the processing mode of Q3 interface is, at first checks ring protection unit in the corresponding protection group according to the interface input information, according to the unreliable resource pointer of this ring protection unit, find the unshielded destination point of protection optical fiber correspondence; Then with the work flow of the protected Trail Termination Point of the protected location correspondence of protection group to this unshielded destination point that finds, simultaneously this protected location is updated to the ring switching state.
The implementation method of a kind of four fibre loop multiplying segment protection management provided by the present invention; owing to adopted the four fiber complex section ring protection Management Information Model of Q3 interface; and in setting, the modeling attribute increased the attribute parameter; realized being undertaken the function of four fiber complex section ring protection management, improved the four fiber complex section ring protection efficiency of management of SDH network by the Q3 interface.
Description of drawings
Fig. 1 is a TMN layered system schematic diagram in the prior art;
Fig. 2 is the example tree schematic diagram of two fiber complex section ring protections management Q3 interface before switching of prior art;
Fig. 3 is the example tree schematic diagram after the switching of two fiber complex section rings of prior art shown in Figure 2;
Fig. 4 is the example tree structure schematic diagram before the inventive method 4F Ring is switched;
To be the inventive method carry out example tree state schematic diagram behind the span switching to 4F Ring to Fig. 5;
To be the inventive method carry out example tree state schematic diagram behind the ring switching to 4F Ring to Fig. 6.
Embodiment
To be described in further detail the inventive method below in conjunction with drawings and Examples:
The implementation method of a kind of four fibre loop multiplying segment protection management of the present invention; on the basis of the sdhMSProtectionUnit that the G774_3 suggestion is stipulated; increase by an attribute parameter switchMode; this attribute parameter can value bidSwitch (0); ringSwitch (1); spanSwitch (2); noSwitch different attributes such as (3); enabling to distinguish this protected location is which kind of protected location (protected location of non-4F Ring; the protected location of segment protection; the protected location of ring protection, the protected location of 4F Ring).
In the model structure of 4F Ring (is example with other 4F Ring of STM16 level), each is used for transmitting working traffic to existing four optical fiber, a pair of optical fiber to constitute the master between the adjacent network element with optical fiber, and a pair of in addition optical fiber constitutes protection optical fiber and carries extra traffic; Close in protection and to fasten, the west to a pair of main with optical fiber by the west to standby optical fiber and the standby optical fiber of east orientation protect simultaneously, east orientation a pair of main with optical fiber by the standby optical fiber of east orientation with western to standby optical fiber protect simultaneously.When a master breaks down with optical fiber, on the professional standby optical fiber that at first is switched in the same way; At this moment switching of taking place is called span switching (spanswitch); If fault has also taken place standby optical fiber in the same way, then switching services is to the standby optical fiber of another one direction, and switching at this moment is called ring switching (ring switch).
Because there are two resource conservations in the protected resource of each of four fiber complex section ring; be segment protection resource and ring protection resource, therefore in the model of the inventive method used, each protection group must be protected three protected locations; be respectively protected location, segment protection unit and ring protection unit.
Because the sdhMSProtectionUnit in the G774-3 suggestion can't further distinguish segment protection unit and ring protection unit, the inventive method increases the switchMode attribute on the basis of sdhMSProtectionUnit, revision is used for segment protection unit and ring protection unit are distinguished for sdhMSProtectionUnitHW; Its specific definition is as follows:
sdhMSProtectionUnitHW?MANAGED?OBJECT?CLASS
DERIVED?FROM
″ITU?G.774.03″:sdhMSProtectionUnit；
CHARACTERIZED?BY
sdhMSProtectionUnitHWPkg?PACKAGE
ATTRIBUTES
switchMode?GET-REPLACE；；；
REGISTERED?AS{huaweiSDHObjectClass?14}；
switchMode?ATTRIBUTE
WITH?ATTRIBUTE?SYNTAX SDHhuawei.SwitchMode；
MATCHES?FOR?EQUALITY；
BEHAVIOUR
switchModeBehBEHAVIOUR
DEFINED?AS″...″；；
REGISTERED?AS{huaweiSDHAttribute?14}；
SwitchMode::＝ENUMERATED{
bidSwitch(0)，
ringSwitch(1)，
spanSwitch(2)，
noSwitch(3)
}
It is noted that the name of each the attribute parameter in the above-mentioned specific embodiment explanation is called too concrete details, can not be interpreted as the restriction of scope that the inventive method is asked for protection, the parameter title can change.
The switchMode attribute that is increased in the above-mentioned model of the inventive method, the implication of each value of its attribute is:
● bidSwitch: represent non-4F Ring, under the situation of non-4F Ring, the unified value for this reason that is provided with of the SwtichMode of all protected locations, at this moment the function of protected location and G774_3 definition is consistent;
● ringSwitch: effect has two, the one, the ring protection resource of the ring switching of sign 4F Ring, the SwitchMode of the protected location PU of ring switching is set to ringSwitch all the time, be the current switch status of sign protection group in addition, if the protection group is in the situation of ring switching, the SwitchMode of protected protected location PU is set to ringSwitch;
● spanSwitch: effect has two, the one, the segment protection resource of the ring switching of sign 4F Ring, the SwitchMode of the protection protected location PU of span switching is set to spanSwitch all the time, be the current switch status of sign protection group in addition, if the protection group is in the situation of span switching, the SwitchMode of protected protected location PU is set to spanSwitch;
● noSwitch: the expression 4F Ring is not switched and is taken place, and this value only may be arranged on the protected protected location PU, and when 4F Ring did not take place by any switching, the SwitchMode of protected protected location PU was set to noSwitch.
Normal nothing is switched under the situation, and the PDPU value is noSwitch, and PGPU (ring) value is ringSwitch; PGPU (span) value is spanSwitch, 4F Ring model schematic diagram under the situation that protection relation nothing is as shown in Figure 4 switched: each protection group comprises three protected location PDPU, PGPU (ring) and PGPU (span), be described as protected location PDPU respectively, segment protection unit PGPU (span) and ring protection unit PGPU (ring); Each is to existing four optical fiber between the adjacent network element, two formation masters are used for transmitting working traffic with optical fiber, and a pair of in addition optical fiber constitutes protection optical fiber and carries extra traffic; Fasten in the protection pass; utilize the protection group pointed between the adjacent network element; the west to a pair of main with optical fiber by the west to standby optical fiber and the standby optical fiber of east orientation protect simultaneously, east orientation a pair of main with optical fiber by the standby optical fiber of east orientation with western to standby optical fiber protect simultaneously.When a master breaks down with optical fiber, at first carry out span switching (spanswitch), this master at first is switched in the same way the standby optical fiber with the working traffic on the optical fiber; If fault has also taken place in standby optical fiber in the same way, then carry out ring switching (ring switch), this working traffic is switched on the standby optical fiber of another one direction, above-mentioned switching can be carried out according to the pointed of protection group.What the DS pointer was described is current service route, can see, the master transmits working traffic with optical fiber under the normal condition, and standby optical fiber transmits extra traffic.The noswitch state description system of PDPU is in normal no switch status.Unreliable resource pointer UR (UnreliableResourcePointer) points to the unreliable business without overprotection of a protected location correspondence; Reliable resource pointer RR (Realiable Resource Pointer) points to the reliable business through overprotection of a protected location correspondence; UR, RR pointer only describe the protection relation, and their execution all is changeless; Only there is downstream concatenation pointer DS (downstreamConnectivityPointer) to change after switching.UCTP identifies unshielded destination point CTP (Connection Termination Point) among the figure, corresponds to optical fiber one group of protection or main usefulness; PTTP identifies protected Trail Termination Point TTP (Trail TerminationPoint), and corresponding business through the protection of overprotection group is an abstract management object; PDPU identifies protected protected location; The protected location of PGPU sign protection.
In the inventive method, taking place under the span switching situation, the PDPU value is spanSwitch, and PGPU (ring) is ringSwitch; PGPU (span) is spanSwitch, the execution as shown in Figure 5 of protection relation four fine section model schematic diagrames behind the span switching, this reason of switching may be because main equipment or fiber failure with optical fiber also may be artificial command operations.Here, can see that equidirectional protection optical fiber has been changed in the signal source of professional (PTTP) by the DS pointer.Span switching does not influence the extra traffic of other sections.
The inventive method to the processing mode of north orientation Q3 interface is, when span switching has taken place, at first checks according to the interface input information and PGPU (span) in the corresponding protection group according to this protected location UR pointer, finds the UCTP of protection optical fiber correspondence; Then with the work flow of the PTTP of the PDPU correspondence of protection group to the UCTP that finds.Simultaneously PDPU is updated to the spanSwitch state.
In the east orientation span switching, the west to all business all unaffected, just between the resource conservation of east orientation and protected resource, carry out the switching of Business Stream pointer; Interrupt the professional flow index of protection, protected business is switched on the resource conservation passage.
In the inventive method, under initial ring was switched situation, the PDPU value was ringSwitch, and PGPU (ring) value is ringSwitch; PGPU (span) value is spanSwitch, its protection relation execution as shown in Figure 6 the 4F Ring example tree state schematic diagram behind the ring switching: this reason of switching may be because equipment or fiber failure also may be artificial command operations.Can see that by the DS pointer protection optical fiber of other direction has been changed in the signal source of professional (PTTP).Owing to ring switching has taken place, has illustrated that equidirectional extra traffic optical fiber in fact also is obstructed, promptly can't utilize span switching protection.
The processing mode of north orientation Q3 interface is in the inventive method, when ring switching has taken place, at first checks PGPU (ring) in the corresponding protection group according to the interface input information, according to this protected location UR pointer, finds the UCTP of protection optical fiber correspondence; Then with the work flow of the PTTP of the PDPU correspondence of protection group to the UCTP that finds.Simultaneously PDPU is updated to the ringSwitch state.
Under the situation of east orientation ring switching, the west to extra traffic will interrupt, originally carry western fiber resource and will be used for carrying the east orientation working traffic signal of switching to extra traffic.UR on the information model; RR is as the information description of describing the protection relation; to change; but flow index will change along with the variation of business as the resource of describing the current demand signal flow direction; in above-mentioned ring switching; interrupt to the UCTP of original carrying extra traffic and the flow index between the PTTP in the west, the protected PTTP of east orientation and west to the UCTP of protection between set up the flow index relation and flow to describe current demand signal.
The inventive method has remedied the deficiency of G774_3 model to four fiber complex section ring ability to express, is based upon the state of the description four fiber complex section ring that Q3 interface on this model can be perfect, makes NMS realize protection management to the four fiber complex section ring very easily.
Need to prove that the inventive method is by realizing the statement to the four fiber complex section ring to improving of sdhMSProtectionUnit, this is the specific embodiment that the present invention adopts; According to the actual needs, the inventive method also can realize identical functions by the pointer that concerns that increases between the protected location.
Should be understood that; the above embodiment of the present invention is too concrete and detailed; only be used for illustrating the realizability of technical scheme of the present invention, but can not be with this as the restriction to scope of patent protection of the present invention, scope of patent protection should be as the criterion with claims.
Claims (1)
1, a kind of implementation method of four fibre loop multiplying segment protection management, described 4F Ring comprises and a pair ofly is used to transmit the main with optical fiber and a pair of standby optical fiber that is used to transmit extra traffic of working traffic, and main destination node with optical fiber and standby optical fiber correspondence is provided with the protection group that sign protection concerns; It is characterized in that,
Described protection group includes protected location, the flag section of the protected business of sign and switches the segment protection unit of protection business in the relation and identify the professional ring protection unit of protection in the ring switching relation;
Described each protected location is used to protect relation management, under described master breaks down with optical fiber or artificially controls, carries out span switching, uses standby in the same way this working traffic of Optical Fiber Transmission of this network element; Also have under fault or the artificial control at this standby in the same way optical fiber, carry out ring switching, use reciprocal this working traffic of standby Optical Fiber Transmission;
Described span switching to the processing mode of Q3 interface is, at first checks according to the interface input information and segment protection unit in the corresponding protection group according to the unreliable resource pointer of this segment protection unit, finds the unshielded destination point of protection optical fiber correspondence; Then with the work flow of the protected Trail Termination Point of the protected location correspondence of protection group to this unshielded destination point that finds, simultaneously this protected location is updated to the span switching state;
Described ring switching to the processing mode of Q3 interface is, at first checks according to the interface input information and ring protection unit in the corresponding protection group according to the unreliable resource pointer of this ring protection unit, finds the unshielded destination point of protection optical fiber correspondence; Then with the work flow of the protected Trail Termination Point of the protected location correspondence of protection group to this unshielded destination point that finds, simultaneously this protected location is updated to the ring switching state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410075033 CN100583702C (en) | 2004-08-24 | 2004-08-24 | Method for realizing four fibre loop multiplying segment protection management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410075033 CN100583702C (en) | 2004-08-24 | 2004-08-24 | Method for realizing four fibre loop multiplying segment protection management |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1741428A CN1741428A (en) | 2006-03-01 |
| CN100583702C true CN100583702C (en) | 2010-01-20 |
Family
ID=36093662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410075033 Expired - Fee Related CN100583702C (en) | 2004-08-24 | 2004-08-24 | Method for realizing four fibre loop multiplying segment protection management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100583702C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188540B (en) * | 2006-11-15 | 2010-12-01 | 中兴通讯股份有限公司 | A configuration method for protection group of chain multiplexing section |
| CN101170439B (en) * | 2007-09-30 | 2010-06-02 | 中兴通讯股份有限公司 | Configuration method for multiplexing loop testing butt joint of devices |
| CN101447848A (en) * | 2007-11-28 | 2009-06-03 | 华为技术有限公司 | Method and device for realizing ring network protection |
| CN101699775B (en) * | 2009-10-30 | 2012-08-29 | 华为技术有限公司 | Method for switching wave channel, device thereof and digital microwave system |
| CN101741671B (en) * | 2009-12-10 | 2012-07-04 | 中兴通讯股份有限公司 | Method and device for realizing dual node interconnection protection in packet transport network |
| CN101800599B (en) * | 2010-02-10 | 2014-05-07 | 瑞斯康达科技发展股份有限公司 | Optical fiber circuit-protecting equipment and system |
| CN101854255B (en) * | 2010-05-14 | 2014-03-12 | 中兴通讯股份有限公司 | Method and system for protecting multiplex section in packet transport network |
| CN103188096A (en) * | 2011-12-29 | 2013-07-03 | 中兴通讯股份有限公司 | Method and device for protecting path in TRILL network |
-
2004
- 2004-08-24 CN CN 200410075033 patent/CN100583702C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| PROTOCOL SUITES FOR Q-INTERFACES FORMANAGEMENT OF TRANSMISSION SYSTEMS. CCITT Recommendation G.773. 1990 |
| PROTOCOL SUITES FOR Q-INTERFACES FORMANAGEMENT OF TRANSMISSION SYSTEMS. CCITT Recommendation G.773. 1990 * |
| 光纤接入网及其关键技术. 游善红等.飞通光电子技术，第2卷第3期. 2002 |
| 光纤接入网及其关键技术. 游善红等.飞通光电子技术，第2卷第3期. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1741428A (en) | 2006-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6477566B1 (en) | Method and system of providing improved network management data between a plurality of network elements and a management system for increasing a flow and decreasing an amount of data transfer | |
| US6707789B1 (en) | Flexible SONET ring with integrated cross-connect system | |
| US6616350B1 (en) | Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network | |
| JP3195465B2 (en) | Bidirectional multiplex section switching ring transmission system and communication signal transfer method | |
| CN1333554C (en) | Method for combining multi-section protection and mesh network recovery | |
| EP1735950B1 (en) | Line-level path protection in the optical layer | |
| US20100128610A1 (en) | Method for supporting sdh/sonet oamp on ethernet | |
| US20020064166A1 (en) | Ring interconnection network system, node equipment, network management equipment, and path setting method | |
| CN100531223C (en) | Method for realizing two-way marked exchange path | |
| US6895182B1 (en) | Optical ring transmission system using squelch method | |
| US7145882B2 (en) | Multiplexed automatic protection switching channels | |
| CN101155064A (en) | Processing method for periodic line resource information of traffic engineering | |
| US6944657B1 (en) | Automatic network synchronization of the network configuration with the management information database | |
| CN100583702C (en) | Method for realizing four fibre loop multiplying segment protection management | |
| JP2000151669A (en) | Communication system | |
| US20040252635A1 (en) | Restoration in an automatically switched optical transport network | |
| US20020133698A1 (en) | Method and apparatus for a network element to support a protected communication link in a communication network | |
| US7619967B2 (en) | Method for protection of ethernet traffic in optical ring networks | |
| US20020131431A1 (en) | Method and apparatus for a network element to support a communication link in a communication network | |
| US8127042B1 (en) | Data driven connection rule/constraint engine applied to trail management | |
| EP0923269B1 (en) | Capability modeling using templates in network management system | |
| US20020131368A1 (en) | Method and apparatus for processing a network manager command in a communication network | |
| JP3031992B2 (en) | Failure recovery method for asynchronous multiplex transmission ring network | |
| CN101170439B (en) | Configuration method for multiplexing loop testing butt joint of devices | |
| US20070248004A1 (en) | Transmission apparatus and data communication channel processing method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |