CN100367717C - Method for realizing OTN apparatus self-adaptation - Google Patents
Method for realizing OTN apparatus self-adaptation Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
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- H—ELECTRICITY
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- 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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- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0826—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network costs
Abstract
The present invention discloses a method for realizing OTN apparatus self-adaptation, which solves the problems that OTN apparatuses with different configurations only can be manually configured when abutted to result in complicated operation and high failure rate existing in the prior art. A self-adaptation protocol query command is sent from one terminal port of an OTN apparatus, the command traverses the terminal port of each apparatus in the link, the self-adaptation ability information of each terminal port is recorded, the self-adaptation ability information of the entire link is extracted from the self-adaptation protocol query command, the configuration parameter of each terminal port is determined according to the configuration policy, the self-adaptation protocol control command with the configuration parameter of each terminal port is sent from the terminal port sending the self-adaptation protocol query command to cause the command to traverse the terminal port of each apparatus in the link, and the apparatus terminal ports which the self-adaptation protocol control command traverses obtain the configuration parameters of the terminal ports and complete configuration.
Description
Technical field
The present invention relates to optical transport technology, the implementation method of particularly a kind of optical transfer network (OTN) apparatus self-adaptation.
Background technology
The development of optical-fiber network technology is promoting whole network to the network development that can support more business.In the construction of transmission infrastructure, the service supplier need can supporting business quick growth, also to make cost low as far as possible simultaneously.There are many frame forming tech and standard in high-speed transfer network configuration aspects.Wherein, G.709 standard can provide comprehensive performance monitoring function for most of general transmission agreements, numeral encapsulation (DigitalWrapper) technology then provides a kind of transmission mechanism that is independent of agreement, can be optical transport network (OTN) effective administrative mechanism and error correction are provided.
At present, in optical transmission system, generally adopt forward error correction (FEC) technology, eliminate the error rate translation phenomenon in the systematic function curve, its coding gain also provides certain system's surplus capacity, thereby reduction optical link neutral line and non-linear factor are to the influence of systematic function.Especially to the system of light amplification, can increase image intensifer at interval, extend transmission distance, improve channel speed, reduce channel light power.
The G.709 middle FEC that recommends of ITU Telecommunication Standardization Sector (ITU-T) adopts RS (255,239) coding, its advantage are that the expense of the outer FEC of band is to add, and are not subjected to the restriction of SDH (Synchronous Digital Hierarchy) (SDH) frame format, can insert the FEC expense very easily, have very big flexibility.Except adopting outside RS (200, the 239) encryption algorithm, different equipment producers also has different FEC encryption algorithms, and these encryption algorithms have RS (255,223), RS (255,238) and RS (255,223) cascade, BTC (BCH (128,113,6) 2) etc.Along with improvement to the FEC algorithm, also can develop other algorithm, for existing device on the compatible network, OTN equipment newly developed also can keep original algorithm when supporting new FEC algorithm.These algorithms of different are difficult to unified, so the equipment of different manufacturers can not intercommunication.
Realize the intercommunication of these OTN equipment, need carry out proper configuration, at present, when running into the OTN equipment interconnection of different configurations, can only reach the intercommunication requirement by manual configuration according to the FEC algorithm of interconnect port.The manual configuration complicated operation is made mistakes easily, especially when OTN equipment network more complicated, also can increase considerably the operation maintenance cost of equipment.
Summary of the invention
The invention provides a kind of implementation method of OTN apparatus self-adaptation, when the OTN apparatus of difference configuration docks, can only pass through manual configuration to solve in the prior art, thus the problem that causes complicated operation and make mistakes easily.
Realize that method of the present invention may further comprise the steps:
A, initiate the self-adapted protocol querying command, make this order travel through the port of each equipment in link and write down the adaptive ability information of each port from port of OTN apparatus;
B, described OTN apparatus extract the adaptive ability information of whole link from described self-adapted protocol querying command, and determine each configuring ports parameter according to collocation strategy;
C, look into the port of agreement querying command and send the self-adapted protocol control command of carrying each port arrangement parameter, make this order travel through the port of each equipment in link from initiating self adaptation;
Each port of D, described self-adapted protocol control command process obtains the configuration parameter of the port and finishes configuration from this order.
Described steps A comprises the steps:
A1: from arbitrary device port downstream device port initiate the self-adapted protocol querying command, and in the self-adapted protocol byte of this order the adaptive ability information of minute book port;
A2: receive the adaptive ability information of device port minute book port in the self-adapted protocol byte in the downstream of described self adaptation querying command, and continue to send to the upstream device port of the port;
A3: whether the receiving port monitoring query procedure at the equipment of initiating described self adaptation querying command is finished, and obtains carrying the self-adapted protocol byte of each autosensing ability information when finishing.
Described step C comprises the steps:
C1: initiate the self-adapted protocol control command from the inquiry port, and in the protocol byte of this order, carry each configuring ports parameter;
C2: the upstream device port that receives described self-adapted protocol control command finds out the port configuration parameter corresponding from protocol byte, and the configuration the port also will be ordered the upstream device port that continues to send to the port;
C3: after the receiving port of the equipment of initiating described adaptive control order receives described self-adapted protocol control command and finishes port arrangement, finish the adaptive ability configuration process.
The present invention adopts each the equipment mouth in the self adaptation querying command traversal link to obtain the adaptive ability information of port, and determining to make each device port finish configuration automatically by the self-adapted protocol control command after each configuring ports parameter, thereby the problem of having avoided manual complexity and having made mistakes easily, not only make the operation maintenance of OTN apparatus become simple and the cost reduction, the reliability of configured port is improved.
Description of drawings
Fig. 1 is the networking schematic diagram of optical transport unit in the prior art;
The position that Fig. 2 is the RES reserve bytes in OTUk expense G.709;
Fig. 3 is the flow chart of the inventive method;
Fig. 4 is for sending self-adapted protocol querying command duration schematic diagram among the present invention.
Embodiment
Below in conjunction with Figure of description implementation of the present invention is further elaborated.
After the optical cable that optical transfer network (OTN) equipment is finished physical layer connected, the difference of (as encryption algorithm etc.) can not automatically be set up communication to connect between the equipment because configuration, therefore need at first be configured.For the present invention is described better, present embodiment is an example with adaptive forward error correction (FEC) type of coding.
The OTN equipment network as shown in Figure 1, these equipment meet G.709 agreement of ITU-T.In the link of networking, signal Client1 is multiplexed to OCH layer (foundation is agreement G.709) by the optical wavelength conversion element (OTU) at port one/12 places, produce the OTN signal, and passing through port one, 2,3,4,5,6 successively, the OTU by port 6/7 place decomposites signal Client1 from the OTN signal at last.The transport process of signal Client2 and signal Client1 are similar, and different is that it is finished by port 7,8,9,10,11,12.
The present invention initiates the self-adapted protocol querying command by a port from OTN apparatus, make this order obtain the adaptive ability information of whole link through the port of each equipment in the link, determine each configuring ports parameter according to collocation strategy then, carry the self-adapted protocol control command of each port arrangement parameter again by transmission, make each device port from this order, obtain the configuration parameter of local terminal and finish configuration.
Carrying out self-adapted protocol between the OTN equipment utilizes the byte in the OTN expense to transmit, equipment can utilize arbitrarily, and the OTN overhead byte carries out the agreement transmission, as long as enough transmit the self-adapted protocol byte, it both can be optical transport unit (OTUk) layer, it also can be the overhead byte of light data cell (ODUk) layer and light net load unit (OPUk) layer, but guarantee enough transmission self-adapted protocol bytes, and expense can receive normally under different OTN configurations, so General Definition is at the OTUk layer.
Because self-adapted protocol will write down the information of a plurality of ports, the byte that needs is more, so suggestion utilizes the multi-frame byte function (as 64 multi-frames) in the OTN expense.For example, can finish by two RES reserve bytes of the OTUk layer of definition in G.709, the position of RES reserve bytes in the OTUk expense as shown in Figure 2.G.709 stipulated in that RES in each OTN frame (calculating with 64 multi-frames) always has 2 * 64=128 byte.This self-adapted protocol will serve as to transmit carrier with these 128 bytes, and wherein the multi-frame byte of RES1 is as the overhead byte of self-adapted protocol, and the multi-frame byte of RES2 is as the content byte of self-adapted protocol, and their implication is respectively:
The overhead byte definition of table 1RES1 self-adapted protocol
| Byte order | Syllable names | The byte effect | Explanation | |
| 0 | Flag | Sign | Normal this byte value of RES1 is " 0 ", when using as self-adapted protocol, this byte value is changed to " and 1 " | |
| 1..16 | CharacterStr | Feature string | Character string " AutoNegotiation " at last with " 0 " finish | |
| 17..18 | | Version number | ||
| 19..22 | ID | Self adaptation numbering ID | In order not conflict with the miscellaneous equipment adaptive command of initiating on the network, require each self adaptation ID that initiates unique, can not repeat. | |
| 23 | CmdType | |
The type of record order | |
| 24 | Port Number | Port number | The port number that comprises in the record protocol content |
| 25 | Port Block Size | The size of every port information piece | The size of each port information piece in the record protocol content, suggestion is set to 1 byte. |
| 26..63 | Res | Reserve bytes | Be left expanded function use in the future, all write 0 at present |
The content byte definition of table 2RES2 self-adapted protocol
| Byte order | Syllable names | The byte effect | Explanation |
| 0..(n-1) | |
The self-adapted protocol content of port one | The size of n is the Port Block Size in the table 1 |
| n..(2n-1) | |
The self-adapted protocol content of |
The same |
| ...... | |||
| (m-1)n..(mn-1) | Content m | The self-adapted protocol content of port m | The maximum port number Pmax that supports depends on n, i.e. Port Block Size in the table 1, and their pass is: Pmax=64/n; So when n=1, Pmax=64, the promptly maximum OTN network of supporting 64 ports |
| Be up to 64-1 | Blank | Idle multi-frame byte | When m does not reach the maximum port number Pmax that supports, idle byte fill out into " 0 " |
The entry condition of self adaptation operation comprises:
When 1, equipment re-powers.When OTN equipment re-powers and since the configuration of this equipment acquiescence can not guarantee with network on the intercommunication of upstream and downstream port, so must start adaptive operation process automatically, guarantee that the equipment that powers on can automatically adapt to configuration on network.
2, during any one port hard reset of equipment.So-called " hard reset " (Hard Reset) is meant and removed resetting of equipment disposition, be similar to re-powering of equipment.Just the hard reset of equipment generally is to control by long-range order.And re-power generally is that power supply by on-the-spot plug equipment produces.During any one port hard reset of equipment,,, guarantee automatically on network, to adapt to configuration after the device reset operation so must start adaptive operation process automatically because configuration is eliminated.
3, adaptive request is arranged again.Again self adaptation is that operating personnel pass through the self adaptation that the management channels of equipment starts, and for example: a link has adapted to automatically and finishes, and the configuration that changes equipment in the link by control desk is at this moment restarted self adaptation (Renegotiation) process with needs.
Consult shown in Figure 3ly, realize that the main process of adaptive ability configuration is as follows:
After the OTN port in step 2, downstream was received the self-adapted protocol querying command, in the relevant byte of the overhead byte inediting of self-adapted protocol, and the OTN port that continues was downstream propagated.To remember the self adaptation numbering ID in this when editor and port id number simultaneously.
Each OTN port is self-adapted protocol overhead byte of (for example 10ms) monitoring at set intervals, according to self adaptation numbering ID, and command type, port number information need to judge whether editor's self-adapted protocol byte, and transmits downstream.
The device port of step 6, self-adapted protocol control command process finds out the port configuration parameter corresponding from protocol byte, the configuration the port also will be ordered the upstream device port that continues to send to the port; Finish the adaptive ability configuration process after the receiving port (promptly initiating the upstream port of described control command port) of the equipment of initiation control command receives described self-adapted protocol control command and finishes port arrangement, whole adaptive configuration process is finished.
Below, with an example said process is elaborated:
As the network configuration of Fig. 1, initiate query procedure from OTN port 5.
1, according to the definition of self-adapted protocol overhead byte (table 1), generate overhead byte:
Flag＝1；CharacterStr＝“AutoNegotiation”；ID＝0×00000001；CmdType＝1；
Port Number=1; Port Block Size=1; Res=All Zero (complete 0).
And fill in the self-adapted protocol content of port one in the content byte (table 2) of self-adapted protocol, port 5 remembers that the port-mark (Port ID) in this process should be 1.
2, by the self-adapted protocol overhead byte being mapped among the RES1 of OTU layer, the content byte of self-adapted protocol is mapped among the RES2 of OTU layer, and is propagated to port 6 by OTN port 5.
The duration that port 5 sends RES is two receiving cycles of downstream port, and for example each receiving cycle is 10ms, and that port 5 stops to send after continuing to send RES 20ms.This is to consider that existing OTN equipment when handling the reception of OTN agreement, generally all adopts the mode of task (Task) repeating query to carry out.If upstream port sends the agreement duration receiving cycle of downstream port is only arranged, so the task of downstream port might repeating query less than the OTN protocol byte, so the duration that necessarily requires upstream port to send agreement be at least two receiving cycles of downstream port.
As shown in Figure 4, upstream port sends the lasting T1/T2 of querying command, 20ms time.What downstream port agreement transmission process was described is to cooperate the most critical situation with upstream extremity, that is: downstream has carried out once receiving operation before upstream extremity sends agreement, and the reception task of downstream (task that for example receives is seized by the task that height preferentially reaches) after being slightly larger than 10ms just carries out receiving the second time operation.If the upstream extremity agreement sends the process duration and has only T1=10ms, will cause downstream can not receive the protocol byte of upstream extremity under the so this critical situation.Therefore, the suggestion upstream extremity sends two receiving cycles that agreement must continue downstream port, to guarantee that downstream also can receive agreement under the most critical state.
3, because each OTN port self-adapted protocol overhead byte of (for example 10ms) monitoring at set intervals, so port 6 can be received protocol overhead and content in port 5 continues to send time of self-adapted protocols.OTN port 6 judges whether to edit and propagates down stream according to the protocol overhead byte of receiving.
Because the ID that receives is new agreement ID, the ID that handled with last time is different, can judge it is new process once; While PortNumber=1; According to the continuous principle of port numbering, port 6 remembers that the Port ID in this process should be 2.Port 6 is revised overhead byte: Port Number=2 according to the definition of self-adapted protocol overhead byte (table 1); And in the content byte (table 2) of self-adapted protocol, fill in the self-adapted protocol content of port 2.
4, because port 6/7 is positioned on the same equipment, and the signal of OTN is not to be sent to port 7 from port 6, so the port 7 logic downstream port of port 6 just, equipment should be simulated the signal flow of OTN automatically, and making port 7 its upstream ports of identification is 6.Port 7 is revised the protocol byte content, and port 8 is propagated downstream.
5, because the equipment of relaying is transparent transmission for the expense of OTN, as port 2/3,4/5,8/9,10/11.So the OTN expense that port 7 sends, 8 and 10 ports will receive simultaneously almost that therefore, OTN end 10 needs the priority incorrect order of control port.Revised the content of agreement after signal is handled through port 8/9, port one 0 will be received new agreement.At this moment port one 0 should compare according to the port number (Port Number) in previous port-mark (PortID) and the agreement, if Port is Number＞=PortID, what show that port one 0 last time handled is leading, should remodify protocol contents, and propagates down stream once more.
6, querying command is same as described above from the process of OTN port one 1 to OTN port 3, repeats no more.
7, OTN port 4 is responsible for monitoring and is judged whether the process of self-adapted protocol querying command finishes.The basis for estimation whether process finishes is overtime judgement, promptly begins to carry out time-out count from 5 protocol informations of OTN port, and when overtime incident produced, OTN port 4 can extract the current self-adapted protocol information of receiving.The size of time-out time is set through the needed time set timer of each OTN port in the link according to the self-adapted protocol querying command.
8, after OTN port 4 gets access to the adaptive information of whole chain road port, determine each configuring ports according to the adaptive strategy algorithm.
The collocation strategy algorithm, the application starting point difference because of each manufacturer allows to define voluntarily.In the OTN network of FEC and superpower FEC mixed networking, because superpower FEC can bring bigger coding gain, when the upstream and downstream port possessed FEC and superpower FEC simultaneously, the adaptive strategy of manufacturer tended to select superpower FEC.In Fig. 1, have FEC and superpower FEC ability simultaneously if inquire port 3/4, so adaptive strategy should select port 3/4 to be configured to superpower FEC.
For example: indicate in the adaptive information of receiving: the port that possesses superpower FEC is: 1/2/3/10/11/12, and the port that possesses FEC is: 1/2...11/12 (all of the port all possesses).
According to the adaptive strategy algorithm, generate the adaptive control instruction and be: the port that need be configured to superpower FEC: 1/2/11/12, need be configured to the port of FEC: 3/4/5/6/7/8/9/10.
According to the definition of self-adapted protocol overhead byte (table 1), generate overhead byte:
Flag＝1；CharacterStr＝“AutoNegotiation”；ID＝0×00000002；CmdType＝2；
Port Number=12; Port Block Size=1; Res=All Zero (complete 0).
9, initiate adaptive control instruction process from OTN port 5.Port 5 changes configuration into the FEC pattern, sends the adaptive control instruction simultaneously, and the duration is two time quantum 20ms.
The process of adaptive control instruction is handled with self-adapted protocol querying command process similar, and different is that adaptive control instruction process agreement is read-only in communication process, and each port can only read protocol contents, can not make amendment to protocol contents.Each port is adjusted the configuration of oneself according to the control command of receiving, and the guarantee agreement signal can propagates down stream.
10, port 6 receives self-adapted protocol, according to protocol requirement, changes configuration into the FEC pattern.
11, control protocol is received by port 7/8/9/10/11/12/1/2/3/4 successively, and according to protocol requirement, respectively each port arrangement is become FEC or superpower FEC.
12, initiate the OTN port 5 of adaptive control instruction process, the condition that finishes the transmission agreement is that port 4 has been received the adaptive control instruction.
Adaptive OTN port number scale is depended in this adaptive approach consuming time, and port number is many more, and self adaptation needs consumed time long more, and adaptive frequency with OTN Equipment Inspection OTN expense consuming time is also directly related.
The maximum port number Pmax that supports in the table 2 depends on n, i.e. Port Block Size in the table 1, and their pass is: Pmax=64/n; So when n=1, Pmax=64, the promptly maximum OTN network of supporting 64 ports.If each time quantum of OTN Equipment Inspection OTN expense is 10ms.The consuming time the longest of adaptive ability query procedure is so: 64 * 10 * 2=1280ms.
In general consuming time less than the adaptive ability query procedure consuming time of adaptive ability control command process be not because the end of adaptive ability control process needs to judge with overtime.In a word, even under bigger OTN network (as 64 ports), carry out adaptive approach of the present invention, only need consuming time below 3 seconds.
Below only describe with preferred embodiment, but the present invention is not limited to this, the present invention is equally applicable to other parameter configuration for port.
Claims (10)
1. the implementation method of an OTN apparatus self-adaptation is characterized in that, this method may further comprise the steps:
A, initiate the self-adapted protocol querying command, make this order travel through the port of each equipment in link and write down the adaptive ability information of each port from port of OTN apparatus;
B, described OTN apparatus extract the adaptive ability information of whole link from described self-adapted protocol querying command, and determine each configuring ports parameter according to collocation strategy;
C, send the self-adapted protocol control command of carrying each port arrangement parameter, make this order travel through the port of each equipment in link from the device port of initiating the self-adapted protocol querying command;
Each port of D, described self-adapted protocol control command process obtains the configuration parameter of the port and finishes configuration from this order.
2. the method for claim 1 is characterized in that, steps A comprises the steps:
A1: from the port of any apparatus downstream device port initiate the self-adapted protocol querying command, and in the self-adapted protocol byte of this order the adaptive ability information of minute book port;
A2: receive the adaptive ability information of upstream device port minute book port in the self-adapted protocol byte of described self adaptation querying command, and continue to send to the upstream device port of the port;
A3: whether the receiving port monitoring query procedure at the equipment of initiating described self adaptation querying command is finished, and obtains carrying the self-adapted protocol byte of each autosensing ability information when finishing.
3. method as claimed in claim 2 is characterized in that, the duration of each device port device port transmission downstream self-adapted protocol querying command is no less than two receiving cycles of this upstream device port.
4. method as claimed in claim 2, it is characterized in that, according to the needed time set length of timer of each port in the self-adapted protocol querying command traversal link, when beginning, query procedure starts this timer, when the overtime then definite query procedure of timing is finished.
5. the method for claim 1 is characterized in that, step C comprises the steps:
C1: initiate the self-adapted protocol control command from the device port of initiating the self adaptation querying command, and in the protocol byte of this order, carry each configuring ports parameter;
C2: the upstream device port that receives described self-adapted protocol control command finds out the port configuration parameter corresponding from protocol byte, and the configuration the port also will be ordered the upstream device port that continues to send to the port;
C3: after the receiving port of the equipment of initiating described adaptive control order receives described self-adapted protocol control command and finishes port arrangement, finish the adaptive ability configuration process.
6. as each described method of claim 1 to 5, it is characterized in that, adopt different self-adapted protocol signs when sending the self-adapted protocol querying command at every turn, device port by this self adaptation querying command process in each process of initiating the self-adapted protocol querying command carries out serial number, and the port number that will carry in will ordering when each port receives the self-adapted protocol querying command adds 1 port-mark and the record that obtains the port.
7. method as claimed in claim 6, it is characterized in that, when device port is double when receiving the self-adapted protocol querying command of identical self-adapted protocol sign, compares according to the port-mark of record last time and port number in the subcommand of back and to carry out incorrect order control.
8. method as claimed in claim 6 is characterized in that, adopting in the optical transport network arbitrarily, overhead byte transmits described self-adapted protocol querying command and self-adapted protocol control command.
9. method as claimed in claim 6 is characterized in that, described adaptive ability information comprises the forward error correction coding type of device port.
10. the method for claim 1 is characterized in that, when optical transport network equipment re-powers, on the optical transport network link equipment arbitrary device port hard reset or begin execution in step A when restarting the self adaptation operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101033051A CN100367717C (en) | 2004-12-14 | 2004-12-14 | Method for realizing OTN apparatus self-adaptation |
| PCT/CN2005/002186 WO2006063522A1 (en) | 2004-12-14 | 2005-12-14 | Realization method for adaptive capability configuration for otn equipment |
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| CNB2004101033051A CN100367717C (en) | 2004-12-14 | 2004-12-14 | Method for realizing OTN apparatus self-adaptation |
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| CN1791010A CN1791010A (en) | 2006-06-21 |
| CN100367717C true CN100367717C (en) | 2008-02-06 |
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| WO (1) | WO2006063522A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101282178B (en) * | 2007-04-06 | 2011-09-21 | 中兴通讯股份有限公司 | Method for inquiring and managing configuration data of EPON local network element equipment |
| CN101789845B (en) * | 2010-02-22 | 2013-01-16 | 烽火通信科技股份有限公司 | Method and circuit applying SFEC to realize bit width transformation of bus in OTN (optical transport network) |
| CN103178992A (en) * | 2011-12-22 | 2013-06-26 | 迈普通信技术股份有限公司 | Ethernet passive optical network port self-adaptation achievement device and method |
| CN105871467B (en) * | 2015-01-19 | 2018-03-23 | 中国移动通信集团公司 | A kind of device of adaptive connection in optical network system and optical network system |
| CN107959628B (en) * | 2016-10-18 | 2020-11-06 | 中国电信股份有限公司 | Service route searching method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2000079738A1 (en) * | 1999-06-18 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for communication |
| WO2001078308A2 (en) * | 2000-04-11 | 2001-10-18 | International Business Machines Corporation | Method for defining and controlling the overall behavior of a network processor device |
| CN1377158A (en) * | 2001-03-22 | 2002-10-30 | 深圳市中兴通讯股份有限公司上海第二研究所 | Automatic service configuration method for synchronous digital transmission system |
| CN1501626A (en) * | 2002-11-18 | 2004-06-02 | 中国移动通信集团公司 | A control method for monitoring working state of network management system |
| CN1501631A (en) * | 2002-11-17 | 2004-06-02 | 华为技术有限公司 | Optical network reconstruction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT392555B (en) * | 1989-10-24 | 1991-04-25 | Alcatel Austria Ag | METHOD FOR TRANSMITTING BINARY INFORMATION IN AN OPTICAL TRANSMISSION NETWORK AND OPTICAL TRANSMISSION NETWORK |
| ES2291552T3 (en) * | 2002-11-12 | 2008-03-01 | Alcatel Lucent | QUICK RECONFIGURATION OF NETWORK ELEMENTS. |
| WO2004064263A2 (en) * | 2003-01-13 | 2004-07-29 | Globespanvirata Incorporated | Integrated pon processor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079738A1 (en) * | 1999-06-18 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for communication |
| WO2001078308A2 (en) * | 2000-04-11 | 2001-10-18 | International Business Machines Corporation | Method for defining and controlling the overall behavior of a network processor device |
| CN1377158A (en) * | 2001-03-22 | 2002-10-30 | 深圳市中兴通讯股份有限公司上海第二研究所 | Automatic service configuration method for synchronous digital transmission system |
| CN1501631A (en) * | 2002-11-17 | 2004-06-02 | 华为技术有限公司 | Optical network reconstruction method |
| CN1501626A (en) * | 2002-11-18 | 2004-06-02 | 中国移动通信集团公司 | A control method for monitoring working state of network management system |
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| CN1791010A (en) | 2006-06-21 |
| WO2006063522A1 (en) | 2006-06-22 |
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