CN1520053A - Concatenation device capable of providing both of primary auxiliary protection and eapacitance expansion - Google Patents
Concatenation device capable of providing both of primary auxiliary protection and eapacitance expansion Download PDFInfo
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- CN1520053A CN1520053A CNA031006698A CN03100669A CN1520053A CN 1520053 A CN1520053 A CN 1520053A CN A031006698 A CNA031006698 A CN A031006698A CN 03100669 A CN03100669 A CN 03100669A CN 1520053 A CN1520053 A CN 1520053A
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Abstract
The concatenation device includes concatenation frame. Each frame contains concatenation unit, and each unit includes concatenation board 1 and concatenation board 2, as well as each concatenation board contains selecting copy module. Channel data from primary exchange network board and auxiliary exchange network board are input to selecting copy module of concatenation board 1 and selecting copy module of concatenation board 2 respectively. Input data of selecting copy module of concatenation board 1 through the selecting copy module are output to the input ends of service modules in the concatenation board 1 and board 2. The selecting copy modules in concatenation board 1 and 2 are output identical channel data respectively to concatenation board 1 and 2 in concatenation unit of next frame. The invention solves link failure caused by fault of concatenation board, providing both of primary-auxiliary protection and capacitance expansion.
Description
Technical field
The present invention relates to a kind of cascade device that main-apparatus protection and capacity extension can be provided simultaneously.
Background technology
Communication equipments such as present switch, router in order to increase the reliability of volume of business and raising device transmission, adopt active and standby many frames of network board cascade technology usually.
Many frames cascade structure is referring to shown in Figure 1.In the prior art, each cascade frame comprises several grades connecting plate in this frame or further comprises main exchange net plate 110, auxiliary exchange net plate 111, described level connecting plate also can be the veneer that several have cascade function, comprise grade connecting plate C, a D, E, F... and main exchange net plate 110 and auxiliary exchange net plate 111 in the frame 11 repeatedly as 1 figure middle rank, wherein, main exchange net plate 110 links to each other with each grade connecting plate of this frame respectively with auxiliary exchange net plate 111.Level connecting plate in level connecting plate and the next stage cascade frame in this cascade frame links to each other by cascade optical fiber or cable, as the 12 intermediate connecting plate H of next stage cascade frame among 1 figure, G, cascade frame 13 intermediate connecting plate I, J, link to each other with grade connecting plate C, D, F, E in the cascade frame 11 of the corresponding levels successively.The service channel of the corresponding main exchange net plate 110 of heavy line and fine line difference and the service channel of auxiliary exchange net plate 111 among the figure.
As seen from the figure, present cascade technology has the following disadvantages:
1) when between cascade frame at the corresponding levels and the next stage cascade frame during arbitrary link occurs fault, for example among Fig. 1, I-F, J-E, the arbitrary link occurs fault of H-C, G-D, this link corresponding service passage will interrupt, and cause professional losing;
2) when arbitrary grade of connecting plate breaks down, for example among Fig. 1, C, D, E, F, G, H, arbitrary grade of connecting plate of I, J break down, and this veneer corresponding service passage will interrupt, and cause professional losing;
Above-mentioned two kinds of situations are not because the data of the level connecting plate in the same frame have main-apparatus protection; in case transmission link or level connecting plate fault occur; all can cause professional losing; if but allow the business of another piece level connecting plate of a cascade board back-up carry out main-apparatus protection; volume of business will lose half; and, need upper-layer protocol to guarantee that reversed process is slower and complicated owing to be switching between same switching network different port when switching.
Summary of the invention
The object of the invention is to provide a kind of device that the cascade of main-apparatus protection and capacity extension can be provided simultaneously, not in the lost traffic capacity, to provide main-apparatus protection in many frames cascade, improves the reliability of business data transmission between the cascade frame.
The present invention is achieved through the following technical solutions:
A kind of cascade device that main-apparatus protection and capacity extension can be provided simultaneously; this cascade device comprises more than one cascade frame; each cascade frame comprises one or more cascade unit; each cascade unit comprises cascade plate 1 and level connecting plate 2; each grade connecting plate comprises a Service Processing Module; the level connecting plate of described cascade device at least also comprises the selection replication module that is used to select with reproducing signals; two channel datas from main exchange net plate input to described level connecting plate 1 selection replication module and described level connecting plate 2 selection replication modules respectively; inputing to described level connecting plate 1 respectively from the data of two passages of auxiliary exchange net plate selects replication module and described level connecting plate 2 to select replication modules
Described level connecting plate 1 Service Processing Module and level connecting plate 2 Service Processing Modules are exported the level connecting plate 1 and grade connecting plate 2 of two identical channel datas cascade unit to next cascade frame respectively.
Preferably, described choosing transmitting-receiving send module to comprise to be used for two the modules of selecting two modeling pieces of one tunnel output and being used for one tunnel input is copied as two-way output in dual input, wherein,
Input to the input of described pair of modeling piece respectively from the data of main exchange net plate and auxiliary exchange net plate, the output of described pair of modeling piece is connected to two inputs of sending out modules,
The road output that 1 pair of level connecting plate is sent out module is connected to the output that this grade connecting plate is selected replication module, and another road output is connected to the input of grade connecting plate 2 Service Processing Modules,
The road output that 2 pairs of level connecting plates are sent out module is connected to the output that this grade connecting plate is selected replication module, and another road output is connected to the input of grade connecting plate 1 Service Processing Module.
A kind of cascade device that main-apparatus protection and capacity extension can be provided simultaneously; this cascade device comprises more than one cascade frame, and each cascade frame comprises one or more cascade unit, and each cascade unit comprises cascade plate 1 and level connecting plate 2; each grade connecting plate comprises a Service Processing Module
Each grade connecting plate of described cascade device at least also comprises selects module and replication module, from a channel data of main exchange net plate, input to described level connecting plate 1 replication module respectively from the data of a passage of auxiliary exchange net plate, from another channel data of main exchange net plate, input to described level connecting plate 2 replication modules respectively from the data of another passage of auxiliary exchange net plate
One circuit-switched data of level connecting plate 1 replication module exports grade connecting plate 1 to and selects module, this selection module exports an input of grade connecting plate 1 Service Processing Module to, circuit-switched data from level connecting plate 2 replication modules exports grade connecting plate 1 selection module to, this selection module exports another input of grade connecting plate 1 Service Processing Module to
Another circuit-switched data of level connecting plate 2 replication modules exports grade connecting plate 2 to and selects module, this selection module exports an input of grade connecting plate 2 Service Processing Modules to, circuit-switched data from level connecting plate 1 replication module exports grade connecting plate 2 selection modules to, this selection module exports another input of grade connecting plate 2 Service Processing Modules to
Service Processing Module is exported the level connecting plate of two identical channel datas cascade unit to next cascade frame respectively.
The present invention is by being positioned at the selection replication module on grade connecting plate or selecting module and cascade device that replication module constituted; active and standby service channel is duplicated and selects; intersection by level connecting plate 1 in the same cascade frame and level connecting plate 2 signals is selected; solved the problem that when cascade, can not solve main-apparatus protection and capacity extension simultaneously; feasible level connecting plate 1 and level connecting plate 2 be back-up each other; at level connecting plate fault; link failures such as cascade optical fiber or cable cut; played protective effect; improved the reliability of many frames cascade transmission; and; owing to adopted the selection replication module; make main-apparatus protection carry out at two different switching networks; need not the assurance of upper-layer protocol, realized switching fast of hardware controls.Compared with prior art, not only improved the reliability of transmitting between the cascade frame, and lost traffic capacity not.
Description of drawings
Fig. 1 is many frames cascade structure of prior art;
Fig. 2 is for providing the schematic diagram of the cascade of main-apparatus protection and capacity extension simultaneously among the embodiment 1;
Fig. 3 is for providing the schematic diagram of the cascade of main-apparatus protection and capacity extension simultaneously among the embodiment 2.
Embodiment
For make purpose of the present invention, technical scheme, and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Embodiment 1:
Cascade device provided by the invention comprises more than one cascade frame, each cascade frame comprises one or more cascade unit, each cascade unit comprises two level connecting plates in the same cascade frame, is respectively grade connecting plate 1 and level connecting plate 2, and each grade connecting plate is provided with the selection replication module.
Referring to shown in Figure 2, Fig. 2 is for providing the cascade schematic representation of apparatus of main-apparatus protection and capacity extension simultaneously among the embodiment 1.When many frames cascade,, select 2 veneers usually as cascade according to cascade Capacity Selection level connecting plate quantity.Therefore any two level connecting plates constitute connecting plate at the corresponding levels and to the level connecting plate in same cascade frame, and the choosing transmitting-receiving is set respectively send module.In figure, cascade unit 114 in the cascade frame 11 at the corresponding levels comprises a grade connecting plate C, level connecting plate D, level connecting plate C, level connecting plate D are respectively equipped with and select replication module 112C, 112D (frame of broken lines part among the figure), cascade unit 114 in the next stage cascade frame 12 comprises a grade connecting plate H, level connecting plate G, level connecting plate H, a level connecting plate G are respectively equipped with cascade and send the choosing transmitting-receiving and send module 112H, 112G, and above-mentioned choosing transmitting-receiving is sent module to comprise at least to have and selected 1 the tunnel as two modeling pieces of output function with 1 tunnel input is copied as two modules of the functions of 2 tunnel outputs in 2 tunnel inputs.
One data channel of the main exchange net plate 110 in the cascade frame 11 at the corresponding levels, a data channel of auxiliary exchange net plate 111 link to each other with two modeling piece inputs in the level connecting plate respectively, promptly, in Fig. 2, main channel L1 and the business that is equipped with passage L3 are delivered to the input of the two modeling piece U2 among grade connecting plate C, main channel L2 and fully the business of passage L4 deliver to the input of the two modeling piece U4 among grade connecting plate D.
Two modeling piece U2 outputs among the level connecting plate C are connected to the input of two module U1 of sending out, two module U1 are 2 tunnel outputs with signal replication, with one tunnel input that exports Service Processing Module S1 to wherein, another road exports the input of the Service Processing Module S3 of adjacent level connecting plate D to, and the output of this Service Processing Module S3 is connected to the input of Service Processing Module S4 among the next stage cascade frame 12 interior grade connecting plate G by cascade optical fiber or cable.
Similarly, in level connecting plate D, two modeling piece U4 outputs are connected to the input of two module U3 of sending out, two module U3 are 2 tunnel outputs with signal replication, with one tunnel input that exports Service Processing Module S3 to wherein, another road exports the input of the Service Processing Module S1 of adjacent level connecting plate C to, and the output of this Service Processing Module S1 is connected to the input of Service Processing Module S2 among the next stage cascade frame 12 interior grade connecting plate H by cascade optical fiber or cable.
Service Processing Module S2 output two-way business in the next stage cascade frame 12 among grade connecting plate H, wherein, one the tunnel inputs to the input of two modeling piece U5 of this grade connecting plate, another road inputs to the input of the two modeling piece U6 among the adjacent level connecting plate G in this frame, and the output of two modeling piece U5 links to each other with the input of two module U7.Similarly, Service Processing Module S4 output two-way business among the level connecting plate G, wherein, one the tunnel inputs to the input of two modeling piece U6 of this grade connecting plate, another road inputs to the input of the two modeling piece U5 among the adjacent level connecting plate H in this frame, and the output of two modeling piece U6 links to each other with the input of two module U8.
The two-way input channel of above-mentioned couple of modeling piece U5 is professional different, and for example one the tunnel is the L1 channel service, another Lu Zewei L2 channel service, and similarly, the two-way input channel business of two modeling piece U6 is also different.Can guarantee that the output channel business of two modeling piece U5 and two modeling piece U6 is inequality from software, for example, when two modeling piece U5 selected the output of L1 channel service, two modeling piece U6 then selected the output of L2 channel service.Above-mentioned choosing transmitting-receiving send module and Service Processing Module to do respectively on two boards, and the mode by the front and back plate realizes.
The course of work of above-mentioned cascade device is as follows:
When cascade frame main exchange net plate 110 operate as normal at the corresponding levels, two modeling piece U2 and two modeling piece U4 select the main channel, promptly, two modeling piece U2 select the L1 passage, two modeling piece U4 select the L2 passage, utilizing two module U1 of sending out and two module U3 of sending out then is 2 parts with signal replication respectively, because two road output signals intersections of sending out module of adjacent level connecting plate are connected to the input of the other side's Service Processing Module, therefore, service channel is the data from L1 and L2 on the C-H link, the D-G link is the same with the C-H link traffic, the business of such two links is back-up each other, even wherein a link damages and also can not cause service disconnection, and the cascade structure of relative and prior art, can obtain double data capacity.
Two modeling piece U5 in the next stage cascade frame 12 and two modeling piece U6 select respective links, promptly two modeling piece U5 select the L1 passage, two modeling piece U6 select the L2 passage, two module U7 and two module U8 that sends out duplicate L1 passage and L2 channel signal respectively again, the web plate signal of operate as normal has just passed to next stage cascade frame 12 from cascade frame 11 at the corresponding levels pellucidly like this, and with double data capacity output.When main exchange net plate 110 and auxiliary exchange net plate 111 carried out masterslave switchover, the link of C-H and D-G can select to be equipped with passage by two modeling piece U2 and two modeling piece U4, that is, two modeling piece U2 select the L3 passages, and two modeling piece U4 select the L4 passages.
Embodiment 2:
Referring to shown in Figure 3, Fig. 3 is for providing the schematic diagram of the cascade of main-apparatus protection and capacity extension simultaneously among the embodiment 2.Comprise on each grade connecting plate and select module 115 and replication module 113, replication module 113 to comprise two module and the two fully modules of sending out sent out of the identical master of circuit structure, described selection module 115 comprises the two modeling pieces of the identical master of circuit structure and fully two modeling pieces.
Data from main exchange net plate 110 input to main two input of sending out module, data from auxiliary exchange net plate 111 input to the inputs that are equipped with two modules, the two outputs of sending out module U4 of level connecting plate C master are connected to the input of the two modeling piece U2 of this grade connecting plate master, and another output is connected to the input that grade connecting plate D is equipped with two modeling piece U5; The output that level connecting plate C is equipped with two module U3 of sending out is connected to the input that this grade connecting plate is equipped with two modeling piece U1, another output is connected to another input of the two modeling piece U6 of grade connecting plate D master, the two outputs of sending out module U8 of level connecting plate D master are connected to the input of the two modeling piece U6 of this grade connecting plate master, and another output is connected to the input that grade connecting plate C is equipped with two modeling piece U1; The output that level connecting plate D is equipped with two module U7 of sending out is connected to the input that this grade connecting plate is equipped with two modeling piece U5, another output is connected to another input of the two modeling piece U2 of grade connecting plate C master, the output of the described two modeling piece U2 of level connecting plate C master and fully two modeling piece U1 is connected to the input of its grade connecting plate Service Processing Module respectively, and the output of the described two modeling piece U5 of level connecting plate D master and fully two modeling piece U6 is connected to the input of its grade connecting plate Service Processing Module.Service Processing Module exports the input of the Service Processing Module of level in the connecting plate of next stage cascade frame to by cascade optical fiber or cable, and the output of Service Processing Module is connected to the two inputs of sending out modules in its grade connecting plate respectively.
The course of work of above-mentioned cascade device is as follows:
When cascade frame main exchange net plate 110 operate as normal at the corresponding levels, the two module U4 that send out of master among the level connecting plate C duplicate main channel L1 business, and export main two modeling piece U2 to, the two modeling piece U2 of this master select the professional output of described main channel L1, be equipped with two modeling piece U1 and select professional output from the output main channel L2 of main two module U8 of sending out among the level connecting plate D, make the C-H link have the professional and main channel L2 business of main channel L1, similarly, two modeling piece U5 that are equipped with among the level connecting plate D select the professional output of main channel L1, main two modeling piece U6 selects the professional output of main channel L2, makes the D-H link also have the professional and main channel L2 business of main channel L1.
When cascade frame at the corresponding levels carries out masterslave switchover, auxiliary exchange net plate 111 work, two module U3 of sending out that are equipped with among the level connecting plate C duplicate passage L3 business fully, and export to and be equipped with two modeling piece U1, should be equipped with two modeling piece U1 and select the professional output of the described passage L3 of being equipped with, main two modeling piece U2 selects to be equipped with the professional output of passage L4 from the output that is equipped with two module U7 of sending out among the level connecting plate D, make the C-H link have passage L3 business and passage L4 business fully fully, similarly, two modeling piece U5 that are equipped with among the level connecting plate D select to be equipped with the professional output of passage L4, the U6 selection is equipped with the output of passage L3 business, makes the D-G link also have passage L3 business and passage L4 business fully fully.
In this embodiment, described duplicating published also available 2 * 2 cross chips realization of module.
From above-mentioned cascade device and the course of work as seen, the present invention is directed to the deficiencies in the prior art part improves as follows:
1) when arbitrary link breaks down between C and H, D and the G, because two links is professional the same, backup each other, so can not cause service disconnection, played good main-apparatus protection effect, and do not lost capacity.
2) owing to C and D, H and G are active and standby each other, when C, D, arbitrary grade of connecting plate of H, G break down, as long as the selection replication module of this grade connecting plate is working properly, and equally can interrupting service.
3) main-apparatus protection of being realized by many frames cascade device of the present invention is to carry out at two different switching networks, switches and can realize fast by hardware.Concrete switchover mode is to detect that light signal is lost or electric module detects the signal of telecommunication and loses when optical module, then directly selects to duplicate device by hardware logic control and selects to be equipped with passage, realizes that quick master-slave switches.This operates in physical layer and carries out, and is transparent fully to upper-layer protocol, simple, fast, reliable.
Claims (4)
1, a kind of cascade device that main-apparatus protection and capacity extension can be provided simultaneously; this cascade device comprises more than one cascade frame; each cascade frame comprises one or more cascade unit; each cascade unit comprises cascade plate 1 and level connecting plate 2; each grade connecting plate comprises a Service Processing Module; it is characterized in that
Each grade connecting plate of described cascade device at least also comprises and is used to select and the selection replication module of reproducing signals, two channel datas from main exchange net plate input to described level connecting plate 1 selection replication module and described level connecting plate 2 selection replication modules respectively, inputing to described level connecting plate 1 respectively from the data of two passages of auxiliary exchange net plate selects replication module and described level connecting plate 2 to select replication modules
Level connecting plate 1 selects a circuit-switched data of replication module to export this grade connecting plate business module one input to, and another road exports grade connecting plate 2 business modules one input to,
Level connecting plate 2 selects a circuit-switched data of replication module to export to another input of level connecting plate 2 business modules, and another road exports another input of grade connecting plate 1 business module to,
Described level connecting plate 1 Service Processing Module and level connecting plate 2 Service Processing Modules are exported the level connecting plate 1 and grade connecting plate 2 of two identical channel datas cascade unit to next cascade frame respectively.
2, cascade device as claimed in claim 1 is characterized in that, described choosing transmitting-receiving send module to comprise to be used for two the modules of selecting two modeling pieces of one tunnel output and being used for one tunnel input is copied as two-way output in dual input, wherein,
Input to the input of described pair of modeling piece respectively from the data of main exchange net plate and auxiliary exchange net plate, the output of described pair of modeling piece is connected to two inputs of sending out modules,
The road output that 1 pair of level connecting plate is sent out module is connected to the output that this grade connecting plate is selected replication module, and another road output is connected to the input of grade connecting plate 2 Service Processing Modules,
The road output that 2 pairs of level connecting plates are sent out module is connected to the output that this grade connecting plate is selected replication module, and another road output is connected to the input of grade connecting plate 1 Service Processing Module.
3, a kind of cascade device that main-apparatus protection and capacity extension can be provided simultaneously; this cascade device comprises more than one cascade frame; each cascade frame comprises one or more cascade unit; each cascade unit comprises cascade plate 1 and level connecting plate 2; each grade connecting plate comprises a Service Processing Module; it is characterized in that
Each grade connecting plate of described cascade device at least also comprises selects module and replication module, from a channel data of main exchange net plate, input to described level connecting plate 1 replication module respectively from the data of a passage of auxiliary exchange net plate, from another channel data of main exchange net plate, input to described level connecting plate 2 replication modules respectively from the data of another passage of auxiliary exchange net plate
One circuit-switched data of level connecting plate 1 replication module exports grade connecting plate 1 to and selects module, this selection module exports an input of grade connecting plate 1 Service Processing Module to, circuit-switched data from the output of level connecting plate 2 replication modules inputs to grade connecting plate 1 selection module, this selection module exports another input of grade connecting plate 1 Service Processing Module to
Another circuit-switched data of level connecting plate 2 replication modules exports grade connecting plate 2 to and selects module, this selection module exports an input of grade connecting plate 2 Service Processing Modules to, circuit-switched data from the output of level connecting plate 1 replication module inputs to grade connecting plate 2 selection modules, this selection module exports another input of grade connecting plate 2 Service Processing Modules to
Service Processing Module is exported the level connecting plate of two identical channel datas cascade unit to next cascade frame respectively.
4, cascade device as claimed in claim 3 is characterized in that,
Described replication module comprises two module and the two fully modules of sending out sent out of the identical master of circuit structure, and described selection module comprises the two modeling pieces of the identical master of circuit structure and fully two modeling pieces, wherein,
Input to main two inputs of sending out modules from the data of main exchange net plate, input to from the data of auxiliary exchange net plate and be equipped with two inputs of sending out modules,
Level connecting plate 1 main two outputs of sending out module are connected to an input of the two modeling pieces of this grade connecting plate master, and another output is connected to the input that grade connecting plate 2 is equipped with two modeling pieces; Level connecting plate 1 is equipped with two outputs of sending out module and is connected to the input that this grade connecting plate is equipped with two modeling pieces, and another output is connected to another input of grade connecting plate 2 main two modeling pieces,
Level connecting plate 2 main two outputs of sending out module are connected to an input of the two modeling pieces of this grade connecting plate master, and another output is connected to the input that grade connecting plate 1 is equipped with two modeling pieces; Level connecting plate 2 is equipped with two outputs of sending out module and is connected to the input that this grade connecting plate is equipped with two modeling pieces, and another output is connected to another input of grade connecting plate 1 main two modeling pieces,
Described level connecting plate 1 main two modeling pieces and the output that is equipped with two modeling pieces are connected to the input of its grade connecting plate Service Processing Module respectively, and described level connecting plate 2 main two modeling pieces and the output that is equipped with two modeling pieces are connected to the input of its grade connecting plate Service Processing Module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031006698A CN100341256C (en) | 2003-01-21 | 2003-01-21 | Concatenation device capable of providing both of primary auxiliary protection and eapacitance expansion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031006698A CN100341256C (en) | 2003-01-21 | 2003-01-21 | Concatenation device capable of providing both of primary auxiliary protection and eapacitance expansion |
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| CN1520053A true CN1520053A (en) | 2004-08-11 |
| CN100341256C CN100341256C (en) | 2007-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031006698A Expired - Fee Related CN100341256C (en) | 2003-01-21 | 2003-01-21 | Concatenation device capable of providing both of primary auxiliary protection and eapacitance expansion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420217C (en) * | 2005-06-28 | 2008-09-17 | 华为技术有限公司 | Interframe interconnection communication system and data exchanging method thereof |
| CN100426722C (en) * | 2006-01-06 | 2008-10-15 | 华为技术有限公司 | Concatenation system |
| CN1937782B (en) * | 2006-08-04 | 2010-04-14 | 华为数字技术有限公司 | Frame device and its message transmitting method |
| CN105975364A (en) * | 2016-05-03 | 2016-09-28 | 杭州迪普科技有限公司 | Data backup method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5923643A (en) * | 1997-02-27 | 1999-07-13 | Excel, Inc. | Redundancy, expanded switching capacity and fault isolation arrangements for expandable telecommunications system |
| US6262820B1 (en) * | 1998-07-15 | 2001-07-17 | Lucent Technologies Inc. | Optical transmission system including optical restoration |
| CN1109416C (en) * | 2000-04-25 | 2003-05-21 | 华为技术有限公司 | Method and equipment for swapping active with standby switches |
-
2003
- 2003-01-21 CN CNB031006698A patent/CN100341256C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420217C (en) * | 2005-06-28 | 2008-09-17 | 华为技术有限公司 | Interframe interconnection communication system and data exchanging method thereof |
| CN100426722C (en) * | 2006-01-06 | 2008-10-15 | 华为技术有限公司 | Concatenation system |
| CN1937782B (en) * | 2006-08-04 | 2010-04-14 | 华为数字技术有限公司 | Frame device and its message transmitting method |
| CN105975364A (en) * | 2016-05-03 | 2016-09-28 | 杭州迪普科技有限公司 | Data backup method and device |
| CN105975364B (en) * | 2016-05-03 | 2019-07-05 | 杭州迪普科技股份有限公司 | Data back up method and device |
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| CN100341256C (en) | 2007-10-03 |
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