CN101854255A - Method and system for protecting multiplex section in packet transport network - Google Patents
Method and system for protecting multiplex section in packet transport network Download PDFInfo
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
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- H04J2203/006—Fault tolerance and recovery
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Abstract
The invention relates to a method and a system for protecting a multiplex section. The method comprises the following steps of: detecting main port alarm information of a main channel in real time and transmitting the main port alarm information to a main control board by a main single board; detecting standby port alarm information of a standby channel and standby port K1K2 bytes in real time and transmitting the standby port alarm information and the standby port K1K2 bytes to the main control board by a standby single board; and determining whether the main service works on the main channel or standby channel by the main control board according to the main port alarm information, the standby port alarm information, the standby port K1K2 bytes and a preset external control command. By detecting the main port alarm information, the standby port alarm information and the standby port K1K2 bytes in real time, once discovering that the main service needs to be converted, the main control board converts the main service in time according to the main port alarm information, the standby port alarm information, the standby port K1K2 bytes and the preset external control command, thereby further enhancing safety and reliability of data transmission in a packet transport network.
Description
Technical field
The present invention relates to the optical communication field, the method and system of multiplex section protection in particularly a kind of Packet Transport Network.
Background technology
Based on SDH (Synchronous Digital Hierarchy, SDH (Synchronous Digital Hierarchy)) MSTP (Multi-Service Transfer Platform, multi-service transport platform) technology has embodied optical transfer network to the evolution trend of supporting that grouping transmits in the transmitting function that provides the carrier class Packet Service.But it is kernel that MSTP remains with TDM (Testing Data Management/Technical Data Management, data Management/Technical Data Management), is difficult to satisfy the application demand based on Packet Service.So it is main transmission net---PTN (Packet Transport Network, Packet Transport Network) that industry has proposed suitable Packet Service.PTN can effectively transmit Packet Service, and the grouping tranmission techniques of carrier class OAM (OperationAdministration and Maintenance, operation maintenance management) and protection is provided.
In order to protect stable transfer professional on the network element, multiplex section protection has obtained using widely.But, be applied in multiplex section protection technology in the Packet Transport Network is that all right ripe, especially Packet Transport Network is along with the fast development of network size and number of users, and Packet Service is increasing, and its safety of data transmission and reliability can not get good assurance.
Summary of the invention
Invention main purpose of the present invention is the method and system that propose multiplex section protection in a kind of Packet Transport Network, is intended to improve safety of data transmission and reliability in the Packet Transport Network.
The invention provides the method for multiplex section protection in a kind of Packet Transport Network, Packet Transport Network comprises master channel and alternate channel, and the two ends of master channel are the master port of main veneer, and the two ends of alternate channel are the port that is equipped with of standby plane, may further comprise the steps:
Main veneer detects the master port warning information of master channel in real time, and the master port warning information is sent to master control borad;
Standby plane detects being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel in real time, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad;
Master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the decision main business is operated in master channel or alternate channel.
Preferably, above-mentioned master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the step that the decision main business is operated in master channel or alternate channel is specially:
Master control borad receives the master port warning information of main veneer transmission, the port warning information that is equipped with of standby plane transmission reaches port K1K2 byte fully;
According to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, generate the new work at present channel information that is equipped with port K1K2 byte and protection group by the APS agreement;
With the new port that is equipped with that port K1K2 byte is set to standby plane that is equipped with;
According to the work at present channel information of protection group, judge whether to carry out switching of main business;
Judgement is when carrying out the switching of main business, and switches between master channel and alternate channel according to the new port K1K2 byte control main business that is equipped with.
Preferably, above-mentioned basis is new is equipped with the step that is equipped with port that port K1K2 byte is set to standby plane and specifically comprises:
Master control borad sends new port K1K2 byte fully to standby plane;
Standby plane receives the new port K1K2 byte that is equipped with, and judges whether new to be equipped with port K1K2 byte legal, when the new port K1K2 byte that is equipped with when legal, then will be new be equipped with the port fully that port K1K2 byte is updated to standby plane.
Preferably, the master port warning information of above-mentioned real-time detection master channel, and also comprise before the master port warning information is sent to the step of master control borad:
On main veneer and standby plane, create same multiplex section protection group respectively.
Preferably, the request of above-mentioned K1 byte representation service signal is switched, the bridge status in the K2 byte representation multiplex section protection exchanging.
The present invention also provides the system of multiplex section protection in a kind of Packet Transport Network, comprising:
Main veneer comprises the master port that connects master channel, is used for detecting in real time the master port warning information of master channel, and the master port warning information is sent to master control borad;
Standby plane comprises the port that is equipped with that connects alternate channel, is used for detecting being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel in real time, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad;
Master control borad is used for according to the master port warning information, is equipped with the port warning information, is equipped with port K1K2 byte and presets the external control order, and the decision main business is operated in master channel or alternate channel.
Preferably, above-mentioned master control borad comprises:
The master control borad communication unit is used to receive master port warning information, standby plane that main veneer sends send be equipped with the port warning information and be equipped with port K1K2 byte;
Switch decision package, be used for according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, generate the new work at present channel information that is equipped with port K1K2 byte and protection group by the APS agreement; And be equipped with the port that is equipped with that port K1K2 byte is sent to standby plane with new by the master control borad communication unit;
Judging unit is used for the work at present channel information according to the protection group, judges whether to carry out switching of main business;
Switch performance element, be used for judging to be to carry out main business when switching, between master channel and alternate channel, switch according to the new port K1K2 byte control main business that is equipped with.
Preferably, above-mentioned standby plane comprises:
The standby plane detecting unit is used for detecting in real time being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel;
The standby plane communication unit is used for transmission and is equipped with the port warning information and is equipped with port K1K2 byte to master control borad; Also be used to receive the configuration information that is equipped with port K1K2 byte that master control borad sends;
The standby plane judging unit is used to judge whether the new configuration information that is equipped with port K1K2 byte is legal;
The standby plane processing unit is used for when the new configuration information that is equipped with port K1K2 byte is legal, then with the new port that is equipped with that port K1K2 byte is updated to standby plane that is equipped with.
Preferably, above-mentioned standby plane processing unit also is used for creating the multiplex section protection group on standby plane.
Preferably, above-mentioned main veneer comprises:
Main veneer detecting unit is used for detecting in real time the master port warning information of master channel;
Main veneer communication unit is used for the master port warning information is sent to master control borad;
Main veneer processing unit is used for creating the multiplex section protection group on main veneer.
The method and system of a kind of multiplex section protection of the present invention; by real-time detection master port warning information, be equipped with the port warning information and be equipped with port K1K2 byte; in case finding main business need switch; master control borad then basis, master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order and carry out switching of main business in time, further improved safety of data transmission and reliability in the Packet Transport Network.
Description of drawings
Fig. 1 is the schematic flow sheet of method one embodiment of multiplex section protection in the Packet Transport Network of the present invention;
Fig. 2 be in the foregoing description master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the decision main business is operated in the schematic flow sheet of the step of master channel or alternate channel;
Fig. 3 is 1: 1 preceding structural representation of bidirectional linear multiplex section protection exchanging in the foregoing description;
Fig. 4 is the structural representation behind 1: 1 bidirectional linear multiplex section protection exchanging in the foregoing description;
Fig. 5 is the structural representation before the ring network multiplex section protection is switched in the foregoing description;
Fig. 6 is the structural representation after the ring network multiplex section protection is switched in the foregoing description;
Fig. 7 is the structural representation of one embodiment of system of multiplex section protection in the Packet Transport Network of the present invention;
Fig. 8 is the structural representation of master control borad in the foregoing description;
Fig. 9 is the structural representation of standby plane in the foregoing description;
Figure 10 is the structural representation of main veneer in the foregoing description.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The method of multiplex section protection is applied in the multiplex section protection of main business in the Packet Transport Network in the Packet Transport Network of the present invention.Wherein Packet Transport Network comprises master channel and alternate channel, and the two ends of master channel are the master port of main veneer, is used to move main business.The two ends of alternate channel are the port that is equipped with of standby plane, general bearer service not, the multiplex section protection when being used for the main business link occurs fault.Multiplex section protection comprises linear multiplex section protection and ring network multiplex section protection; multiplex section protection of the present invention is mainly used in and uses APS (Automatic Protection Switch, APS) one to one of agreement (1: 1) bidirectional linear multiplex section protection and ring network multiplex section protection.
Fig. 1 shows the flow process of method one embodiment of multiplex section protection in the Packet Transport Network of the present invention.
The method of multiplex section protection may further comprise the steps in the present embodiment Packet Transport Network:
Step S11, main veneer detect the master port warning information of master channel in real time, and the master port warning information is sent to master control borad;
Main veneer comprises a plurality of master ports, can move main business respectively, when the operation the main business link occurs fault time, can produce warning information, be called the master port warning information.This master port warning information comprises two kinds of Signal Fail and Signal Degrades.Signal Fail comprise other LOF of multiplex section level (Loss OfFrame, LOF), dropout (Loss Of Signal, LOS), Multiplex Section AIS (MultiplexSection Alarm Indication Signal, MS-AIS).In step S11, the testing process of master port warning information can be by regularly triggering or the down trigger realization.For example, regularly triggering mode (as, timer 10ms), this set time of every interval will produce triggering signal, trigger main veneer detection master port warning information by a set time is set on main veneer.Down trigger then is the interrupt signal that produces when utilizing the main business link occurs fault, triggers main veneer by this interrupt signal and detects the master port warning information.
Step S12, standby plane detect being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel in real time, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad;
Standby plane comprises a plurality of ports that are equipped with, and switches main business during the main business link occurs fault that is used for moving on master port.Being equipped with the port warning information comprises: two kinds of Signal Fail and Signal Degrades.Signal Fail comprise other LOF of multiplex section level (Loss OfFrame, LOF), dropout (Loss Of Signal, LOS), Multiplex Section AIS (Multiplex Section Alarm Indication Signal, MS-AIS).
Being equipped with port K1K2 byte is the APS protocol signaling byte of transmitting in the alternate channel.The request of K1 byte representation service signal is switched.Wherein, 1～4 bit of K1 byte is a bridge request codes, and this bridge request codes comprises 16 kinds of bridge joint requests such as locking protection, Forced Switch, Manual Switch, distinguishes according to priority level.5～8 bits of K1 byte are the destination node ID of bridge request codes of 1～4 bit indication of K1 byte.Bridge status in the K2 byte representation multiplex section protection exchanging.1～4 bit of K2 byte is for sending bridge joint request source node ID, and the 5th bit is a length/minor axis sign, and 6～8 bits are the current bridge joint solicited status sign indicating number of source node that sends the bridge joint request.
According to being equipped with the port warning information and being equipped with port K1K2 byte, the current service operation state of alternate channel as can be known.For example, by being equipped with the port warning information, judge whether the port fully of alternate channel exists alarm; According to being equipped with port K1K2 byte, can judge whether to exist other the switching of protection business.
In step S12, being equipped with the port warning information and being equipped with the testing process of port K1K2 byte also can be by regularly inquiry or down trigger realize.For example, regularly inquiry mode (as, timer 10ms), this set time of every interval will produce triggering signal, trigger standby plane and detect and be equipped with port warning information and port K1K2 byte fully by the set time is set on standby plane.Down trigger then is the interrupt signal that produces when utilizing service link to break down, and triggers the standby plane detection by this interrupt signal and is equipped with the port warning information and is equipped with port K1K2 hand joint.
Step S13, master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the decision main business is operated in master channel or alternate channel.
With reference to Fig. 2, step S13 further comprises:
Step S131, master control borad receive the master port warning information of main veneer transmission, the port warning information that is equipped with of standby plane transmission reaches port K1K2 byte fully;
Step S132, according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, generate the new work at present channel information that is equipped with port K1K2 byte and protection group by the APS agreement;
Master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order; utilize the APS agreement to switch decision-making, and generate the new work at present channel information that is equipped with port K1K2 byte and protection group.This APS agreement meets the ITU-G.841 standard, in the ITU0-G.841 standard specified in more detail APS agreement specifically switch decision-making.For example, at first according to the master port warning information, judge whether main business needs to switch.The master port warning information is the trigger condition that main business is switched, and when detecting the master port warning information, the judgement main business need be switched.Secondly,, judge being equipped with port and whether having warning information of alternate channel according to being equipped with the port warning information, if exist, judge this alternate channel port is unavailable fully; Otherwise the port fully of judging this alternate channel can be used.At last, judge the ruuning situation of this alternate channel, whether satisfy the condition of switching according to being equipped with port K1K2 byte.For example, when when being equipped with port K1K2 byte and learning that alternate channel is used for another professional switching request, then judging according to the priority orders of the bridge request codes in the K1 byte whether the priority of the switching control command of this main business is higher than the priority of another professional switching request, is to judge that then this alternate channel satisfies the condition of switching request; Otherwise judge that this alternate channel does not satisfy the condition of switching request.Therefore, according to the different results of decision of switching, generate the new work at present channel information that is equipped with port K1K2 byte and protection group.
Step S133, be equipped with the port that is equipped with that port K1K2 byte is set to standby plane with new;
Further, step S133 is specially:
A, master control borad send new port K1K2 byte fully to standby plane;
B, standby plane receive the new port K1K2 byte that is equipped with, and judge whether new to be equipped with port K1K2 byte legal, when the new port K1K2 byte that is equipped with when legal, then will be new be equipped with the port fully that port K1K2 byte is updated to standby plane;
According to the new port K1K2 byte that is equipped with, judge whether the destination node ID is this standby plane in port K1K2 byte in this new being equipped with, be to judge that then new to be equipped with port K1K2 byte legal; Otherwise judge that new to be equipped with port K1K2 byte illegal, abandon this new byte that is equipped with port K1K2.When the new port K1K2 byte that is equipped with when legal, this new is equipped with the port that is equipped with that port K1K2 byte is updated to standby plane.Therefore, when master control borad was switched to alternate channel from master channel main business, the port that is equipped with of alternate channel carried out the transmission of main business according to the port K1K2 byte that is equipped with after upgrading.
Step S134, according to the work at present channel information of protection group, judge whether to carry out switching of main business;
The work at present channel information of protection group is compared with the preceding service aisle information of making a strategic decision,, then judge and carry out switching of main business if the work at present channel information of protection group changes; Otherwise judge and do not carry out switching of main business.
Step S135, between master channel and alternate channel, switch according to the new port K1K2 byte control main business that is equipped with.
When switching of main business carried out in judgement, then between master channel and alternate channel, switch according to the new port K1K2 byte control main business that is equipped with.Otherwise abandon the master port warning information, be equipped with the port warning information and be equipped with port K1K2 byte.
The method of multiplex section protection in the present embodiment Packet Transport Network; detect the master port warning information in real time by main veneer; standby plane detects in real time and is equipped with the port warning information and is equipped with port K1K2 byte; in case finding main business need switch; master control borad then according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order and carry out switching of main business in time, further improved safety of data transmission and reliability in the Packet Transport Network.
Need to prove that main veneer and standby plane belong to same multiplex section protection group among the present invention.So, also comprise step S10 before the step S11: on main veneer and standby plane, create same multiplex section protection group respectively.Multiplex section protection group attribute comprises that protection group ID and protection group name claim, by with main veneer and standby plane is created as same protection group ID and same protection group name claims, make winner's veneer and standby plane belong to same multiplex section protection group.
With 1: 1 bidirectional linear multiplex section protection and ring network multiplex section protection multiplex section protection process of the present invention is described respectively below.
(1) 1: 1 bidirectional linear multiplex section protection (as shown in Figure 3)
In this 1:1 bidirectional linear protection, alternate channel can be used to protect the switching services of N bar master channel.So, need the APS agreement to carry out two-way switching.
At first, when master channel breaks down, main veneer A or main board B will detect the master port warning information, and this master port warning information is sent to master control borad, and this master channel of notice master control borad need be switched;
Secondly, standby plane A or standby plane B also will detect fully the port warning information in real time and be equipped with port K1K2 byte, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad, allow master control borad learn the ruuning situation of this alternate channel;
At last; master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order; switch decision-making by the APS agreement, and judge whether to carry out switching of main business according to this result who switches decision-making.When switching of main business carried out in judgement, then the selector of main business transmitting terminal and receiving terminal is switched to alternate channel from master channel, and generation is equipped with the configuration information of port K1K2 byte, be sent to standby plane, the configuration information that makes standby plane will be equipped with port K1K2 byte is updated to the port that is equipped with of standby plane, finish switching of main business, as shown in Figure 4.When switching of main business do not carried out in judgement, then abandon this master port warning information, be equipped with the port warning information and be equipped with port K1K2 byte, main business still is operated in master channel.
(2) ring network multiplex section protection
Ring network multiplex section protection is commonly used two kinds of the protection of two fibre two-way multi-sections and four-fiber bidirectional multiplex section protections, is that example describes with the protection of two fibre two-way multi-sections only at this.
Multiplex section protective ring as shown in Figure 5 comprises that port A is to port E.Wherein, each port is a corresponding veneer respectively, all is connected with two optical fiber between per two ports, and one is working optical fibre, and another root is protection optical fiber.Main business is sent by transmitting terminal, and the master channel through port A, port B, port C, port D is sent to receiving terminal.The passage that is formed by port A, port E, port D is an alternate channel.
At first, when the transmission between port B and the port C is broken down, board B and veneer C all will detect the master port warning information, and this master port warning information is sent to master control borad;
Secondly, veneer E will distinguish being equipped with the port warning information and being equipped with port K1K2 byte of real-time detection port E, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad, allow master control borad learn the ruuning situation of this alternate channel;
At last; master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order; switch decision-making by the APS agreement, and judge whether to carry out switching of main business according to this result who switches decision-making.When switching of main business carried out in judgement; according to the APS agreement; the selector of main business transmitting terminal and receiving terminal is switched to alternate channel from master channel; and generation is equipped with the configuration information of port K1K2 byte; be sent to veneer E; the configuration information that makes veneer E will be equipped with port K1K2 byte is updated to the corresponding port that is equipped with, and finishes switching of main business, as shown in Figure 6.When switching of main business do not carried out in judgement, then abandon this master port warning information, be equipped with the port warning information and be equipped with port K1K2 byte, main business still is operated in master channel.
With reference to Fig. 7, the structure of one embodiment of system of multiplex section protection in a kind of Packet Transport Network of the present invention has been proposed, the system of multiplex section protection comprises in the present embodiment Packet Transport Network:
The master port warning information comprises: two kinds of Signal Fail and Signal Degrades.Signal Fail comprise other LOF of multiplex section level (Loss OfFrame, LOF), dropout (Loss Of Signal, LOS), Multiplex Section AIS (Multiplex Section Alarm Indication Signal, MS-AIS).When main veneer 10 detects the master port warning information, represent that then main veneer 10 need switch.
Being equipped with the port warning information also comprises: two kinds of Signal Fail and Signal Degrades.Signal Fail comprise other LOF of multiplex section level (Loss OfFrame, LOF), dropout (Loss Of Signal, LOS), Multiplex Section AIS (Multiplex Section Alarm Indication Signal, MS-AIS).Being equipped with port K1K2 byte is the APS protocol signaling byte of transmitting in the alternate channel.The request of K1 byte representation service signal is switched.Wherein, 1～4 bit of K1 byte is a bridge request codes, and 5～8 bits of K1 byte are the destination node ID of bridge request codes of 1～4 bit indication of K1 byte.Bridge status in the K2 byte representation multiplex section protection exchanging.Wherein, 1～4 bit of K2 byte is for sending bridge joint request source node ID, and the 5th bit is a length/minor axis sign, and 6～8 bits are the current bridge joint solicited status sign indicating number of source node that sends the bridge joint request.
Master control borad 30 is used for according to the master port warning information, is equipped with the port warning information, is equipped with port K1K2 byte and presets the external control order, and the decision main business is operated in master channel or alternate channel.
With reference to Fig. 8, master control borad 30 comprises:
Master control borad communication unit 31 is used to receive master port warning information, standby plane 20 that main veneer 10 sends send be equipped with the port warning information and be equipped with port K1K2 byte;
Judging unit 33 is used for the work at present channel information according to the protection group, judges whether to carry out switching of main business;
With reference to Fig. 9, standby plane 20 comprises:
Standby plane detecting unit 21 is used for detecting in real time being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel;
Standby plane communication unit 22 is used for transmission and is equipped with the port warning information and is equipped with port K1K2 byte to master control borad 30; Also be used to receive the new port K1K2 byte fully that master control borad 30 sends;
Standby plane judging unit 23 is used to judge whether new to be equipped with port K1K2 byte legal;
Standby plane processing unit 24 is used for when the new port K1K2 byte that is equipped with when legal, then will be new be equipped with the port fully that port K1K2 byte is updated to standby plane 20.
Standby plane processing unit 24 also is used for creating the multiplex section protection group on standby plane 20.
With reference to Figure 10, main veneer 10 comprises:
Main veneer detecting unit 11 is used for detecting in real time the master port warning information of master channel;
Main veneer communication unit 12 is used for the master port warning information is sent to master control borad 30;
Main veneer processing unit 13 is used for creating the multiplex section protection group on main veneer 10.
Main veneer and standby plane belong to same multiplex section protection group among the present invention, so by with main veneer 10 and standby plane 20 is created as same protection group ID and same protection group name claims, make winner's veneer 10 and standby plane 20 belong to same multiplex section protection group.
The system of multiplex section protection in the present embodiment Packet Transport Network; detect the master port warning information in real time by main veneer 10; standby plane 20 detects in real time and is equipped with the port warning information and is equipped with port K1K2 byte; in case main business need be switched; master control borad 30 can be according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order and carry out switching of main business in time, has further improved safety of data transmission and reliability in the Packet Transport Network.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the method for multiplex section protection in the Packet Transport Network is characterized in that Packet Transport Network comprises master channel and alternate channel, and the two ends of master channel are the master port of main veneer, and the two ends of alternate channel are the port that is equipped with of standby plane, may further comprise the steps:
Main veneer detects the master port warning information of master channel in real time, and the master port warning information is sent to master control borad;
Standby plane detects being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel in real time, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad;
Master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the decision main business is operated in master channel or alternate channel.
2. the method for multiplex section protection in the Packet Transport Network as claimed in claim 1; it is characterized in that; described master control borad according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, the step that the decision main business is operated in master channel or alternate channel is specially:
Master control borad receives the master port warning information of main veneer transmission, the port warning information that is equipped with of standby plane transmission reaches port K1K2 byte fully;
According to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, generate the new work at present channel information that is equipped with port K1K2 byte and protection group by the APS agreement;
With the new port that is equipped with that port K1K2 byte is set to standby plane that is equipped with;
According to the work at present channel information of protection group, judge whether to carry out switching of main business;
Judgement is when carrying out the switching of main business, and switches between master channel and alternate channel according to the new port K1K2 byte control main business that is equipped with.
3. the method for multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 2, describedly is equipped with the step that is equipped with port that port K1K2 byte is set to standby plane and specifically comprises new:
Master control borad sends new port K1K2 byte fully to standby plane;
Standby plane receives the new port K1K2 byte that is equipped with, and judges whether new to be equipped with port K1K2 byte legal, when the new port K1K2 byte that is equipped with when legal, then will be new be equipped with the port fully that port K1K2 byte is updated to standby plane.
4. the method for multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 1, the master port warning information of described real-time detection master channel, and also comprise before the master port warning information is sent to the step of master control borad:
On main veneer and standby plane, create same multiplex section protection group respectively.
5. as the method for multiplex section protection in each described Packet Transport Network in the claim 1 to 4, it is characterized in that the request of described K1 byte representation service signal is switched, the bridge status in the K2 byte representation multiplex section protection exchanging.
6. the system of multiplex section protection in the Packet Transport Network is characterized in that, comprising:
Main veneer comprises the master port that connects master channel, is used for detecting in real time the master port warning information of master channel, and the master port warning information is sent to master control borad;
Standby plane comprises the port that is equipped with that connects alternate channel, is used for detecting being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel in real time, and will be equipped with the port warning information and be equipped with port K1K2 byte and be sent to master control borad;
Master control borad is used for according to the master port warning information, is equipped with the port warning information, is equipped with port K1K2 byte and presets the external control order, and the decision main business is operated in master channel or alternate channel.
7. the system of multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 6, and described master control borad comprises:
The master control borad communication unit is used to receive master port warning information, standby plane that main veneer sends send be equipped with the port warning information and be equipped with port K1K2 byte;
Switch decision package, be used for according to the master port warning information, be equipped with the port warning information, be equipped with port K1K2 byte and preset the external control order, generate the new work at present channel information that is equipped with port K1K2 byte and protection group by the APS agreement; And be equipped with the port that is equipped with that port K1K2 byte is sent to standby plane with new by the master control borad communication unit;
Judging unit is used for the work at present channel information according to the protection group, judges whether to carry out switching of main business;
Switch performance element, be used for judging to be to carry out main business when switching, between master channel and alternate channel, switch according to the new port K1K2 byte control main business that is equipped with.
8. the system of multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 7, and described standby plane comprises:
The standby plane detecting unit is used for detecting in real time being equipped with the port warning information and being equipped with port K1K2 byte of alternate channel;
The standby plane communication unit is used for transmission and is equipped with the port warning information and is equipped with port K1K2 byte to master control borad; Also be used to receive the new port K1K2 byte fully that master control borad sends;
The standby plane judging unit is used to judge whether new to be equipped with port K1K2 byte legal;
The standby plane processing unit is used for when the new port K1K2 byte that is equipped with when legal, then will be new be equipped with the port fully that port K1K2 byte is updated to standby plane.
9. the system of multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 8, and described standby plane processing unit also is used for creating the multiplex section protection group on standby plane.
10. the system of multiplex section protection is characterized in that in the Packet Transport Network as claimed in claim 6, and described main veneer comprises:
Main veneer detecting unit is used for detecting in real time the master port warning information of master channel;
Main veneer communication unit is used for the master port warning information is sent to master control borad;
Main veneer processing unit is used for creating the multiplex section protection group on main veneer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010176014.0A CN101854255B (en) | 2010-05-14 | 2010-05-14 | Method and system for protecting multiplex section in packet transport network |
| PCT/CN2010/077952 WO2011140785A1 (en) | 2010-05-14 | 2010-10-21 | Multiplex section protection method and system in packet transport network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010176014.0A CN101854255B (en) | 2010-05-14 | 2010-05-14 | Method and system for protecting multiplex section in packet transport network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101854255A true CN101854255A (en) | 2010-10-06 |
| CN101854255B CN101854255B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010176014.0A Expired - Fee Related CN101854255B (en) | 2010-05-14 | 2010-05-14 | Method and system for protecting multiplex section in packet transport network |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101854255B (en) |
| WO (1) | WO2011140785A1 (en) |
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| CN102035680A (en) * | 2010-12-17 | 2011-04-27 | 中兴通讯股份有限公司 | Cross-equipment link protection method and system |
| WO2011140785A1 (en) * | 2010-05-14 | 2011-11-17 | 中兴通讯股份有限公司 | Multiplex section protection method and system in packet transport network |
| WO2012041061A1 (en) * | 2010-09-27 | 2012-04-05 | 中兴通讯股份有限公司 | Protection method and apparatus of optical network |
| CN102571384A (en) * | 2010-12-16 | 2012-07-11 | 中兴通讯股份有限公司 | Switching method, system and packet transmission network device for multiplex section protection |
| CN102752126A (en) * | 2011-04-22 | 2012-10-24 | 中兴通讯股份有限公司 | Automatic protection switching method, main device and standby device |
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| WO2011140785A1 (en) * | 2010-05-14 | 2011-11-17 | 中兴通讯股份有限公司 | Multiplex section protection method and system in packet transport network |
| WO2012041061A1 (en) * | 2010-09-27 | 2012-04-05 | 中兴通讯股份有限公司 | Protection method and apparatus of optical network |
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| WO2012142870A1 (en) * | 2011-04-22 | 2012-10-26 | 中兴通讯股份有限公司 | Method, active device and standby device for automatic protection switching |
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| WO2016145812A1 (en) * | 2015-03-18 | 2016-09-22 | 中兴通讯股份有限公司 | Method and apparatus for improving rearranging efficiency of multiplexing segments in packet transport network |
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| CN114501195B (en) * | 2021-12-30 | 2024-03-19 | 深圳震有科技股份有限公司 | Switching method and device based on multiplexing segment protection |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011140785A1 (en) | 2011-11-17 |
| CN101854255B (en) | 2014-03-12 |
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