CN1753341A - Protection method based on data business of SDH/SONET and its device - Google Patents
Protection method based on data business of SDH/SONET and its device Download PDFInfo
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- CN1753341A CN1753341A CNA2004100779286A CN200410077928A CN1753341A CN 1753341 A CN1753341 A CN 1753341A CN A2004100779286 A CNA2004100779286 A CN A2004100779286A CN 200410077928 A CN200410077928 A CN 200410077928A CN 1753341 A CN1753341 A CN 1753341A
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Abstract
This invention provides a protection method based on SDH/SONET data service including: monitoring the state of a net element (NE) data process plate in the SDH/SONET network to crossly communicate time slots of the upstream NE and the down stream NE of said NE to transmit the data service when the plate is invalid. This invention also provides a protection device including: a state monitor module and a cross configuring module. This invention can avoid the expansion of the fault when the data process plate is faulty to enable it to transmit data service normally for the upstream NE and the down stream NE when the plate is invalid and enables it to resume its time slot configuration when it works normally.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of guard method and device of the data service based on SDH/SONET.
Background technology
It is very swift and violent that data characteristic is applied in the development in network communications technology field in recent years; new technology emerges in an endless stream; but but rarely having breakthrough aspect the protection of data service with data characteristic; still rest on and rely on the protective capability that SDH/SONET itself provides, perhaps data communication field is transplanted the protected mode of coming.
The protected mode that the SDH/SONET transmission provides itself is very abundant, as PP (path protection), SNCP (SNCP), MSP (multiplex section protection) etc.These protected modes are to guarantee reliable data transmission quality by taking a large amount of bandwidth as redundancy protecting.Originally being intended to of these technology provides a reliable and stable physical transmission channel for upper layer application.
The distinctive protected mode of data communication field; as using very widely RSTP/STP (RSTP/Spanning-Tree Protocol) etc.; protected mode in the data communication field also provides the transfer of data protection by the configuring redundancy channel; occur when unusual at physical transmission channel; utilize RSTP/STP etc. to regenerate new physical transmission channel; but the time that data protection is switched in said process is several seconds even tens of seconds; than SDH/SONET only is the carrier class switching time of 50ms; exist convergence rate slow; shortcomings such as protection switch time is long; expansion along with network size; have tens; the transmission network of up to a hundred websites is very common; the tree type logical construction level that RSTP/STP sets up will become very long, and the reliability of agreement and protective capability can worsen rapidly thereupon.
Mainly adopt the data business transmission method of " back-to-back " based on the chain network of SDH/SONET." back-to-back " data business transmission method is data service when its source address corresponding net element transfers to the destination address corresponding net element, each intermediate NE between the source address corresponding net element of data service and the data service destination address corresponding net element all can all receive data service, by the data processing single board of network element the data business is handled then, if this network element is mail in data service, just be transmitted to the corresponding local client of access, if this network element is not mail in data service, then itself and this network element are inserted data service that the client uploads and add and be in the same place, mail to its downstream network element.
Be elaborated below in conjunction with accompanying drawing 1,2 pairs of " back-to-back " data traffic transmission processes of accompanying drawing based on the chain network of SDH/SONET.
Accompanying drawing 1 is based on the chain network of SDH/SONET, and accompanying drawing 2 is based on the operate as normal schematic diagram of network element of the chain network of SDH/SONET.
In Fig. 1, comprise network element A, network element B, network element C, network element D, network element E based on the chain network of SDH/SONET.The data service that network element A transfers to network element E must receive on network element B, network element C, network element D respectively, and after handling on the data processing plate in network element B, network element C, network element D respectively, be uploaded to again on the SDH/SONET link, until data traffic transmission to network element E.
Be that example describes the data service processing procedure in the network element with network element C below.
As accompanying drawing 2, network element C mainly comprises: control unit, cross board, data processing plate.The major function of control unit is: the function to whole network element is configured, the operating state of whole network element is monitored etc.The major function of cross board is: the upstream and downstream network element of this network element is passed the time slot of coming and the time slot of each veneer of this network element continues, intersects, promptly carry out the add drop multiplex of data.The major function of data processing plate is: the data that the communication equipment that the data that cross board is transmitted and this network element are hung down inserts are handled and are transmitted, and promptly professional and non-local data business is handled, transmitted to local data.
When the data processing plate of network element C occurs when unusual, the method for above-mentioned available data service protection can not make the upstream network element B of network element C and the communication recovery between the downstream network element D, thereby whole chain network is cut off.
In sum, existing data service protection method exists that convergence rate is slow, protection switch time is long, realize shortcoming such as cost height, and occurs can not making the communication of chain network recovery when unusual in the intermediate node network element data disposable plates of chain network.
Summary of the invention
The objective of the invention is to; a kind of guard method and device of the data service based on SDH/SONET are provided; upstream network element by the network element that will break down and the time slot of the downstream network element of described network element intersect intercommunication; make based on the communication system of SDH/SONET and can realize that as communication system the rapid data service protection switches, to improve the reliability and stability of communication system based on the chain network of SDH/SONET.
For achieving the above object, the guard method of a kind of data service based on SDH/SONET provided by the invention comprises:
A, to monitoring based on the state of the network element data disposable plates in the network of SDH/SONET (Synchronous Digital Hierarchy/synchronous optical network);
B, when monitoring described network element data disposable plates when being in failure state, the time slot of the upstream network element of described network element and the downstream network element of described network element is intersected intercommunication;
C, described upstream network element and described downstream network element are carried out data traffic transmission according to the time slot of above-mentioned intercommunication.
Described network based on SDH/SONET comprises: based on the chain network of SDH/SONET.
Described step b comprises:
B1, when monitoring described network element data disposable plates when being in failure state, described data processing plate is carried out logic isolation;
B2, obtain the configuration information of described network element;
B3, according to the configuration information of described network element determine in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface;
B4, according to of the time slot interconnection of described time slot configuration with described upstream network element and described downstream network element.
Described step b1 also comprises: the warning information that described network element data disposable plates is in failure state transfers to webmaster.
Described step b4 comprises:
According to described time slot configuration calculate respectively in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface;
Judge in the network element data disposable plates of described calculating with upstream network element interface and whether identical with the bandwidth of downstream network element interface;
If identical, directly according to of the time slot interconnection of described time slot configuration with described upstream network element and described downstream network element;
If it is inequality, determine in the described network element data disposable plates with the upstream network element interface and with the unified bandwidth of downstream network element interface, according to described unified bandwidth by the network management configuration interface adjust in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and according to of the time slot interconnection of described adjusted time slot configuration with described upstream network element and described downstream network element.
Describedly determine comprising in the described network element data disposable plates with the upstream network element interface and with the step of the unified bandwidth of downstream network element interface:
Determine in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface in the little interface of bandwidth, and the bandwidth of this interface is defined as described unified bandwidth.
Described step b3 also comprises: store in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface;
And described method also comprises:
When monitoring described network element data disposable plates when changing normal operating conditions into by failure state, according to the time slot configuration of described storage recover in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and the time slot of described upstream network element and described downstream network element is intersected intercommunication according to the time slot configuration of described recovery.
Described method also comprises: described network element data disposable plates is transferred to webmaster by the end warning information that failure state changes normal condition into.
Described step b1 also comprises: obtain the routing iinformation in the described network element;
And described step b4 also comprises: the described routing iinformation that obtains is transmitted respectively and be stored to described upstream network element and described downstream network element;
And described step c comprises: described upstream network element and described downstream network element are carried out data traffic transmission according to the time slot of above-mentioned intercommunication and routing iinformation separately thereof.
The present invention also provides a kind of protective device of the data service based on SDH/SONET, comprising:
Monitoring module: the state to the network element data disposable plates is monitored, when the state of data processing plate changes, with corresponding status information transmission to intersecting configuration module;
The cross-over configuration module: the state information that transmission comes according to described monitoring module is intersected intercommunication with the time slot of the upstream network element of described network element and the downstream network element of described network element.
Described cross-over configuration module comprises:
Submodule is analyzed in networking: the configuration information that obtains described network element, according to the configuration information of described network element determine in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and described time slot configuration transferred to bandwidth respectively adjust submodule and cross-over configuration submodule;
Bandwidth is adjusted submodule: according to described networking analyze time slot configuration that the submodule transmission comes determine in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface in the little interface of bandwidth, and with the bandwidth for transmission of this interface to intersecting the configuration submodule;
The cross-over configuration submodule: the time slot interconnection of the next time slot configuration of submodule transmission with described upstream network element and described downstream network element analyzed in bandwidth, the described networking that transmission comes according to described bandwidth adjustment submodule.
Described device also comprises: alarm module: according to the state information of described monitoring module transmission to network management alarm;
Wherein: described state information is fail message or recovering information.
Described device also comprises: route is transplanted module: obtain the routing iinformation in the described network element, and the described routing iinformation that obtains is transferred to the upstream network element and the downstream network element of this network element respectively.
Description by technique scheme can learn obviously that the present invention when the network element data disposable plates breaks down, can avoid the expansion of fault by the network element data disposable plates is monitored rapidly from logic the data disposable plates being isolated; By calculating in this network element data disposable plates and bandwidth upstream network element interface and downstream network element interface, and definite unified bandwidth, according to unified bandwidth time slot configuration is adjusted, make the time slot of upstream network element and downstream network element can intersect intercommunication smoothly, when the upstream network element of this network element and downstream network element can be broken down at the data processing plate of this network element, continue to be undertaken the transmission of data service by this network element; Be stored in webmaster by analyzing the time slot configuration of determining, when making the network element data disposable plates change normal operating conditions into, can recover its time slot configuration easily by failure state; By to webmaster transmitting warning information, make webmaster can in time know the data processing plate of failure state, so that in time take treatment measures; When losing efficacy by data processing plate at network element, routing iinformation in this network element is transferred to its upstream network element and downstream network element, make data service protection method of the present invention not only can be applied to the network of non-routing of data traffic transmission, but also can be applied to network based on the data traffic transmission of route; Thereby realized that by technical scheme provided by the invention the rapid data service protection switches, improved the reliability and stability of communication system.
Description of drawings
Fig. 1 is the chain network diagram;
Fig. 2 is the work schematic diagram of network element before the network element data disposable plates breaks down;
Fig. 3 is the work schematic diagram of network element after network element data disposable plates of the present invention breaks down;
Fig. 4 is the protective device schematic diagram 1 of the data service based on SDH/SONET of the present invention;
Fig. 5 is the protective device schematic diagram 2 of the data service based on SDH/SONET of the present invention.
Embodiment
Adopting " back-to-back " to carry out in the data traffic transmission process, for the local data business, the effect of network element data disposable plates is intellectual analysis and exchange, and for non-local data business, the data processing plate only plays the effect of bridge joint.If the data processing plate of certain network element lost efficacy in based on the chain network of SDH/SONET, then the data processing plate of this network element has just lost bridging functionality, and the upstream network element of this network element is just cut off into two-section with downstream network element, and data service is interrupted, and can not transmit.
Based on foregoing description; the present invention need be when the network element data disposable plates loses efficacy; make this network element still can play the effect of bridge joint, make between the downstream network element of the upstream network element of this network element and this network element and still can carry out normal data traffic transmission, to play the effect of data service protection.
Therefore, core of the present invention is: to monitoring based on the state of the network element data disposable plates in the network of SDH/SONET, when monitoring described network element data disposable plates when being in failure state, the time slot of the upstream network element of described network element and the downstream network element of described network element is intersected intercommunication, and described upstream network element and described downstream network element are carried out data traffic transmission according to the time slot of above-mentioned intercommunication.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
Network based on SDH/SONET among the present invention is meant that the network of setting up in the data traffic transmission mode of " back-to-back " is as the chain network based on SDH/SONET.
Chain network based on SDH/SONET comprises: from being reduced to the SDH/SONET network of chain in logic.
Be that example is described in detail technical scheme provided by the invention with chain network below based on SDH/SONET.
Because in a single day the data processing plate based on the intermediate NE in the chain network of SDH/SONET lost efficacy, the transmission that not only can cause the data service of its upstream network element and its downstream network element is interrupted, and if untimely with the data processing plate that lost efficacy from isolating the expansion that also can cause fault in logic, so, the present invention need monitor the state of network element data disposable plates, the monitoring mode can for: each network element is monitored respectively its data processing plate, also can adopt as other monitor modes such as centralized monitors.
When the data processing plate in monitoring network element is in failure state, should be at first with the data processing plate of this network element from isolating in logic, obtain all configuration informations of this network element then from webmaster, and the above-mentioned network element configuration information of obtaining analyzed, to determine in this network element data disposable plates and time slot configuration its upstream network element interface and downstream network element interface.This time slot configuration comprises: configuration informations such as logic connection, time slot configuration mode, timeslot number.After obtaining above-mentioned time slot configuration, just the time slot of the downstream network element of the upstream network element of this network element and this network element can have been carried out interconnection.
When the data processing plate in monitoring network element is in failure state, the present invention can also be to network management alarm, the message transmission that the network element data disposable plates is in failure state lost efficacy so that webmaster can in time be known the data processing plate of network element, and in time it was taken measures to webmaster.
The time slot configuration with its upstream network element interface and downstream network element interface in the network element data disposable plates that above-mentioned analysis is determined should store, as be stored to webmaster, in order to inquiry or when the network element data disposable plates transfers normal operating conditions to by failure state, use when recovering original time slot configuration.
Since in this network element data disposable plates with upstream network element interface and different with the different bandwidth that may cause of time slot configuration of downstream network element interface, so in actual applications the cross-coupled specific implementation process of time slot can for:
The time slot configuration of determining according to above-mentioned analysis is calculated in this network element data disposable plates and the bandwidth upstream network element interface and this network element data disposable plates and the bandwidth downstream network element interface respectively, and judge whether these two bandwidth are identical, if these two bandwidth are identical, directly the upstream network element of this network element and the time slot of downstream network element intersected and be connected matching relationship with physical connection according to logic and link together and get final product according to the above-mentioned time slot configuration of obtaining; If these two bandwidth are inequality, then at first should determine a unified bandwidth, then can according to this unify bandwidth by the network management configuration interface to adjusting in this network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and according to adjusted time slot configuration the upstream network element of this network element and the time slot of the downstream network element of this network element are intersected the matching relationship that is connected with physical connection according to logic and link together.Like this, the time slot intercommunication of the downstream network element of the network element that the upstream network element of the network element that the data processing plate lost efficacy and data processing plate lost efficacy, the network element that the data processing plate lost efficacy still can play the effect of bridge joint for its upstream network element and downstream network element.
Above-mentionedly unify bandwidth according to this and during to adjusting in this network element data disposable plates, can adopt LCAS technology such as (LinkCapacity Adjustment Scheme link capacity methods of adjustment) with the upstream network element interface and with the time slot configuration of downstream network element interface by the network management configuration interface.
Can choose according to the actual conditions of communication system when determining unified bandwidth, as set a bandwidth value or adopt with regard to little bandwidth principle etc.When adopting with regard to little principle, should determine respectively in the network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface in the little interface of bandwidth, the bandwidth of this interface is defined as unified bandwidth, in accompanying drawing 1, bandwidth between network element B and the network element C is 622M, and the bandwidth between network element C and the network element D is 155M, determine that then bandwidth between network element B and the network element C and the bandwidth between network element C and the network element D all are 155M, and adjust time slot configuration between network element B and the network element C by the network management configuration interface according to the bandwidth of 155M.
Break down in the network element data disposable plates, and through after the technical scheme processing of the present invention, the course of work of network element as shown in Figure 3.Can find out obviously that from Fig. 3 this network element when its data processing plate is in failure state, still can make the data traffic transmission of its upstream network element and downstream network element unobstructed.
Description by technique scheme as can be seen; when the present invention was lost efficacy in the network element data disposable plates; the process of data service protection reverse is very rapidly; can satisfy the demand of carrier class business fully; and the present invention is not subjected to the influence of network size to the protective capability of data business, can not descend because of the expansion of network size.
The present invention can also be when the network element data disposable plates changes normal operating conditions into by failure state, the bridge joint effect of restore data disposable plates, and its detailed process is:
When monitoring the network element data disposable plates when changing normal operating conditions into by failure state, obtain the time slot configuration of storage when the data processing plate breaks down, time slot configuration when obtaining the data processing plate fault of storage from webmaster, recover in the network element data disposable plates and time slot configuration its upstream network element interface according to the above-mentioned time slot configuration obtained, reach time slot configuration with its downstream network element interface, the data processing plate and the time slot of its upstream network element are intersected to be connected and the matching relationship of physical connection links together according to logic, the data processing plate and the time slot of its downstream network element are intersected to be connected and the matching relationship of physical connection links together according to logic, like this, the network element data disposable plates has been recovered its bridge joint effect again for its upstream network element and downstream network element.
When the data processing plate in monitoring network element changes normal condition into by failure state, can also send to webmaster and finish warning information, the message transmission that the network element data disposable plates is recovered normal condition is to webmaster, so that the data processing plate that webmaster can in time be known network element operate as normal.
It is that the basis is described that above-mentioned data service protection process does not need routing iinformation during with data traffic transmission; when the network element transmitting data service needs routing iinformation in the communication network; as the data processing plate in the network element is to be applied to MPLS; the nested grade of VLAN has route; during the data processing plate of function of exchange; when the present invention can also be broken down at the data processing plate of network element; obtain in this network element as being stored in the routing iinformation in the data processing plate; the above-mentioned routing iinformation that obtains is transferred to the upstream network element and the downstream network element of this network element respectively; it is identical with foregoing description that other intersect process with the upstream network element of this network element and the time slot of the downstream network element of this network element, no longer describes in detail in the present embodiment.Like this, upstream network element and downstream network element can be carried out data traffic transmission according to the routing iinformation of the time slot of intercommunication and storage respectively thereof.
The protective device of the data service based on SDH/SONET provided by the invention as shown in Figure 4.
In Fig. 4, data service protection device of the present invention comprises: inefficacy monitoring module 400, cross-over configuration module 410 and alarm module 420.
The function of cross-over configuration module 410 is analyzed submodule 411, bandwidth adjustment submodule 412 and cross-over configuration submodule 413 by networking and is realized.
Being example with a network element in this embodiment describes the function of above-mentioned each module.
The major function of inefficacy monitoring module 400 is: the state to the network element data disposable plates is monitored, when monitoring the network element data disposable plates when being in failure state, the fail message that the network element data disposable plates is in failure state transfers to networking respectively and analyzes submodule 411 and alarm module 420, and with this data processing plate from isolating in logic; When monitoring the network element data disposable plates when changing normal operating conditions into by failure state, the recovering information that changes the data processing plate into normal operating conditions by failure state transfers to networking respectively and analyzes submodule 411 and alarm module 420.
Alarm module 420 is when receiving the fail message of inefficacy monitoring module 400 transmission, to network management alarm, be about to message transmission that the network element data disposable plates is in failure state to webmaster, lost efficacy so that webmaster can in time be known the data processing plate of network element, and in time it is taken measures.When receiving the recovering information of inefficacy monitoring module 400 transmission, send the end warning information to webmaster, be about to message transmission that the network element data disposable plates recovers normal condition to webmaster, so that the data processing plate that webmaster can in time be known network element operate as normal.
The major function that submodule 411 is analyzed in networking is: when the data processing plate that receives 400 transmission of inefficacy monitoring module is in the fail message of failure state, obtain all configuration informations of this network element from webmaster, and the above-mentioned network element configuration information of obtaining analyzed, to determine in this network element data disposable plates and time slot configuration its upstream network element interface and downstream network element interface, and calculate in this network element data disposable plates and the bandwidth upstream network element interface and this network element data disposable plates and the bandwidth downstream network element interface respectively according to above-mentioned time slot configuration, and judge whether these two bandwidth are identical, if these two bandwidth are identical, above-mentioned time slot configuration and bandwidth are transferred to bandwidth adjustment submodule 412 and cross-over configuration submodule 413 respectively, if these two bandwidth are inequality, then a unified bandwidth transferred to bandwidth respectively with above-mentioned time slot configuration and little bandwidth when adopting with regard to little principle and adjust submodule 412 and cross-over configuration submodule 413.Submodule 411 is analyzed in networking also to be needed the time slot configuration with its upstream network element interface and downstream network element interface in above-mentioned definite this network element data disposable plates is transferred to webmaster, is stored by webmaster.
The major function that bandwidth is adjusted submodule 412 is: receive networking and analyze time slot configuration and the unified bandwidth that submodule 411 transmission come, and the bandwidth with the downstream network element interface in this network element data disposable plates and the bandwidth upstream network element interface and this network element data disposable plates is when inequality, technology such as employing LCAS are adjusted time slot configuration by the network management configuration interface according to unified bandwidth, and adjusted time slot configuration transferred to cross-over configuration submodule 413, when the bandwidth with the downstream network element interface in this network element data disposable plates and in the bandwidth upstream network element interface and this network element data disposable plates is identical, directly networking is analyzed the next time slot configuration of submodule 411 transmission and transferred to cross-over configuration submodule 413.
Cross-over configuration submodule 413 is adjusted time slot configuration that submodule 412 transmission come according to bandwidth and by the network management configuration interface upstream network element of this network element and the time slot of downstream network element is intersected the matching relationship that is connected with physical connection according to logic and link together.Like this, the time slot intercommunication of the downstream network element of the network element that the upstream network element of the network element that the data processing plate lost efficacy and data processing plate lost efficacy, the network element that the data processing plate lost efficacy still can play the effect of bridge joint for its upstream network element and downstream network element.
When the network element transmitting data service needed routing iinformation in the communication network, the protective device of the data service based on SDH/SONET provided by the invention as shown in Figure 5.
In Fig. 5, data service protection device of the present invention comprises: inefficacy monitoring module 500, cross-over configuration module 510, alarm module 520 and route are transplanted module 530.
The function of cross-over configuration module 510 is analyzed submodule 511, bandwidth adjustment submodule 512 and cross-over configuration submodule 513 by networking and is realized.
Route is transplanted module 530 when receiving the fail message that the transmission of inefficacy monitoring module comes, and obtains in this network element as is stored in routing iinformation in the data processing plate, the above-mentioned routing iinformation that obtains is transferred to the upstream network element and the downstream network element of this network element respectively.
Networking in this device is analyzed the function described among function that submodule 511, bandwidth adjust submodule 512, cross-over configuration submodule 513 and alarm module 520 and Fig. 4 based on identical, no longer detailed description in the present embodiment.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wishes that appended claim comprises these distortion and variation.
Claims (13)
1, a kind of guard method of the data service based on SDH/SONET is characterized in that comprising:
A, to monitoring based on the state of the network element data disposable plates in the network of SDH/SONET (Synchronous Digital Hierarchy/synchronous optical network);
B, when monitoring described network element data disposable plates when being in failure state, the time slot of the upstream network element of described network element and the downstream network element of described network element is intersected intercommunication;
C, described upstream network element and described downstream network element are carried out data traffic transmission according to the time slot of above-mentioned intercommunication.
2, the guard method of a kind of data service based on SDH/SONET as claimed in claim 1 is characterized in that described network based on SDH/SONET comprises: based on the chain network of SDH/SONET.
3, the guard method of a kind of data service based on SDH/SONET as claimed in claim 2 is characterized in that described step b comprises:
B1, when monitoring described network element data disposable plates when being in failure state, described data processing plate is carried out logic isolation;
B2, obtain the configuration information of described network element;
B3, according to the configuration information of described network element determine in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface;
B4, according to of the time slot interconnection of described time slot configuration with described upstream network element and described downstream network element.
4, the guard method of a kind of data service based on SDH/SONET as claimed in claim 3 is characterized in that described step b1 also comprises:
The warning information that described network element data disposable plates is in failure state transfers to webmaster.
5, the guard method of a kind of data service based on SDH/SONET as claimed in claim 3 is characterized in that described step b4 comprises:
According to described time slot configuration calculate respectively in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface;
Judge in the network element data disposable plates of described calculating with upstream network element interface and whether identical with the bandwidth of downstream network element interface;
If identical, directly according to of the time slot interconnection of described time slot configuration with described upstream network element and described downstream network element;
If it is inequality, determine in the described network element data disposable plates with the upstream network element interface and with the unified bandwidth of downstream network element interface, according to described unified bandwidth by the network management configuration interface adjust in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and according to of the time slot interconnection of described adjusted time slot configuration with described upstream network element and described downstream network element.
6, the guard method of a kind of data service based on SDH/SONET as claimed in claim 5 is characterized in that described the comprising with the upstream network element interface and with the step of the unified bandwidth of downstream network element interface in the described network element data disposable plates of determining:
Determine in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface in the little interface of bandwidth, and the bandwidth of this interface is defined as described unified bandwidth.
7, the guard method of a kind of data service based on SDH/SONET as claimed in claim 3 is characterized in that described step b3 also comprises:
Store in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface;
And described method also comprises:
When monitoring described network element data disposable plates when changing normal operating conditions into by failure state, according to the time slot configuration of described storage recover in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and the time slot of described upstream network element and described downstream network element is intersected intercommunication according to the time slot configuration of described recovery.
8, the guard method of a kind of data service based on SDH/SONET as claimed in claim 7 is characterized in that described method also comprises:
Described network element data disposable plates is transferred to webmaster by the end warning information that failure state changes normal condition into.
9, as the guard method of the described a kind of data service based on SDH/SONET of arbitrary claim in the claim 2 to 8, it is characterized in that described step b1 also comprises:
Obtain the routing iinformation in the described network element;
And described step b4 also comprises:
The described routing iinformation that obtains transmitted respectively and be stored to described upstream network element and described downstream network element;
And described step c comprises:
Described upstream network element and described downstream network element are carried out data traffic transmission according to the time slot of above-mentioned intercommunication and routing iinformation separately thereof.
10, a kind of protective device of the data service based on SDH/SONET is characterized in that described device comprises:
Monitoring module: the state to the network element data disposable plates is monitored, when the state of data processing plate changes, with corresponding status information transmission to intersecting configuration module;
The cross-over configuration module: the state information that transmission comes according to described monitoring module is intersected intercommunication with the time slot of the upstream network element of described network element and the downstream network element of described network element.
11, the protective device of a kind of data service based on SDH/SONET as claimed in claim 10 is characterized in that described cross-over configuration module comprises:
Submodule is analyzed in networking: the configuration information that obtains described network element, according to the configuration information of described network element determine in the described network element data disposable plates with the upstream network element interface and with the time slot configuration of downstream network element interface, and described time slot configuration transferred to bandwidth respectively adjust submodule and cross-over configuration submodule;
Bandwidth is adjusted submodule: according to described networking analyze time slot configuration that the submodule transmission comes determine in the described network element data disposable plates with the upstream network element interface and with the bandwidth of downstream network element interface in the little interface of bandwidth, and with the bandwidth for transmission of this interface to intersecting the configuration submodule;
The cross-over configuration submodule: the time slot interconnection of the next time slot configuration of submodule transmission with described upstream network element and described downstream network element analyzed in bandwidth, the described networking that transmission comes according to described bandwidth adjustment submodule.
12, the protective device of a kind of data service based on SDH/SONET as claimed in claim 10 is characterized in that described device also comprises:
Alarm module: according to the state information of described monitoring module transmission to network management alarm;
Wherein: described state information is fail message or recovering information.
13, as the protective device of claim 10 or 11 or 12 described a kind of data services based on SDH/SONET, it is characterized in that described device also comprises:
Route is transplanted module: obtain the routing iinformation in the described network element, and the described routing iinformation that obtains is transferred to the upstream network element and the downstream network element of this network element respectively.
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| CN2004100779286A CN1753341B (en) | 2004-09-20 | 2004-09-20 | Protection method based on data business of SDH/SONET and its device |
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| CN2004100779286A CN1753341B (en) | 2004-09-20 | 2004-09-20 | Protection method based on data business of SDH/SONET and its device |
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| CN1753341A true CN1753341A (en) | 2006-03-29 |
| CN1753341B CN1753341B (en) | 2010-07-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466546C (en) * | 2006-04-07 | 2009-03-04 | 中兴通讯股份有限公司 | System and method for realizing business protection using LCAS protocol |
| WO2009079853A1 (en) * | 2007-12-24 | 2009-07-02 | Zte Corporation | The method and device for protecting the shared channel in the optical transmission system |
| CN101145867B (en) * | 2007-06-25 | 2011-03-02 | 中兴通讯股份有限公司 | Method for improving protective conversion stability of optical synchronization digital transmission device |
| CN103607298A (en) * | 2013-11-07 | 2014-02-26 | 广东电网公司电网规划研究中心 | Substation emergency channel switching method based on timeslot crossing configuration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126331C (en) * | 1999-11-04 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Automatically protected switching method and device in high rate SDH loop |
| US7525989B2 (en) * | 2002-12-16 | 2009-04-28 | Intel Corporation | System, method and device for time slot status messaging among SONET nodes |
| CN1521975A (en) * | 2003-01-29 | 2004-08-18 | 华为技术有限公司 | Method of cross connection in SDH equipment |
-
2004
- 2004-09-20 CN CN2004100779286A patent/CN1753341B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466546C (en) * | 2006-04-07 | 2009-03-04 | 中兴通讯股份有限公司 | System and method for realizing business protection using LCAS protocol |
| CN101145867B (en) * | 2007-06-25 | 2011-03-02 | 中兴通讯股份有限公司 | Method for improving protective conversion stability of optical synchronization digital transmission device |
| WO2009079853A1 (en) * | 2007-12-24 | 2009-07-02 | Zte Corporation | The method and device for protecting the shared channel in the optical transmission system |
| CN103607298A (en) * | 2013-11-07 | 2014-02-26 | 广东电网公司电网规划研究中心 | Substation emergency channel switching method based on timeslot crossing configuration |
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|---|---|
| CN1753341B (en) | 2010-07-28 |
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