CN100502311C - Network management system and its method for realizing network management - Google Patents
Network management system and its method for realizing network management Download PDFInfo
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- CN100502311C CN100502311C CNB2006100576242A CN200610057624A CN100502311C CN 100502311 C CN100502311 C CN 100502311C CN B2006100576242 A CNB2006100576242 A CN B2006100576242A CN 200610057624 A CN200610057624 A CN 200610057624A CN 100502311 C CN100502311 C CN 100502311C
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The network system includes terminal, terminal network management unit (NMU), access equipment and access equipment NMU. Terminal NMU is in use for directly managing management information above link layer of terminal, and for indirectly managing access equipment NMU forwarded management information of physical layer and link layer related terminal. Access equipment is in use for forwarding interactive information between terminal and access equipment NMU. Access equipment NMU is in use for forwarding management information related to physical layer and link layer of terminal to the terminal NMU. The invention also discloses method of network management in the network management system. Direct management and indirect management for terminal by the terminal NMU raise reliability of network management system realize differential management for terminal as well as overcome disadvantages brought by two management systems: direct and indirect existed in current technique.
Description
Technical field
The present invention relates to network management technology, refer to a kind of network management system that terminal is managed especially and realize the method for webmaster.
Background technology
Along with development of internet technology, fixing/mobile network slowly tends to merge, provide various colourful service business will become the new business development direction of operator to the terminal use in unified network, it is popular that value-added services such as IP phone (VOIP), visual telephone, online game are progressively moved towards.And numerous characteristic services make that current terminal trend is intelligent.Because terminal quantity is big, type is various, how cost-effectively intelligent terminal to be managed, and providing safeguard for the service of value-added service is the new problem that operator faces.
At present, the management to terminal mainly contains two kinds of network management systems: directly network management system and network management system indirectly.
Fig. 1 is that the direct network management system of prior art is formed schematic diagram, as shown in Figure 1, directly network management system comprises independently management domain of two of terminal network guard system and access device network management systems, wherein, the terminal network guard system is realized the management to terminal, management information comprise the terminal alarm data collection, to the analysis of the alarm data that collects and processing, terminal parameter inquiry, configuration, to other operation of terminal as the upgrading of software and hardware etc.; The terminal network guard system comprises terminal and terminal network pipe unit, and terminal network pipe unit and terminal room are directly mutual by a interface.Terminal herein refers to that the user uses professional carrier, as customer premises equipment, CPE (CPE, Customer Premises Equipment), user network gateway (CNG, CustomerNetwork Gate) etc., terminal has the IP address, and a interface bearing is on IP tunnel; The terminal network pipe unit can be a PC server etc.;
The access device network management system comprises access device and access device network management unit, the access device network management unit achieves a butt joint into the management of equipment (AN) by the b interface, such as alarm data collection, performance data monitoring, parameter query, configuration, the port operation of AN, upgrading backup etc.
Directly network management system is simple, and is more flexible to the support of business, is subjected to the influence of terminal access mode little; Management function is all finished by a interface, and interface is few.But, directly network management system simply also can bring some shortcomings, such as:
1) a interface of terminal network pipe unit and terminal room is based on the IP agreement, therefore be subjected to the influence of bearer network quality bigger, and to the configuration of terminal, inquiry, data acquisition all by the IP path, so, in case interrupt owing to reasons such as bearer network cause network physical circuit or IP path, all management functions of terminal network guard system all can lose efficacy, to one of terminal management most important function: fault diagnosis functions also lost efficacy, thereby reduced the reliability of terminal network guard system, can't satisfy the demand of operator.
2) capacity of terminal network guard system has been subjected to bigger restriction.One of characteristic of terminal is exactly that quantity is big, in order to make full use of the technical capability of network management center, reduction is to O﹠M personnel's specification requirement and reduce cost, usually operator can set up the terminal network pipe unit as far as possible less, require whole network management unit must possess enough managerial abilities, require single Standard PC server can manage ten thousand of 5-10 even more terminal usually.But the distribution scene variation of terminal, as intensity, sparse type etc., terminal environments for intensity, in the sub-district in smaller geographic range, the user is intensive, terminal quantity reaches about 10000, at this moment require these terminals of management in same terminal network pipe unit again, cause and to suppose one than higher mutual convergence ratio, promptly simultaneously carry out the quantitative proportion that mutual terminal number accounts for all terminals that the terminal network guard system managed at one time with the terminal network pipe unit, as seen, in direct network management system, rule of thumb, if mutual convergence ratio is lower, the actual management ability of terminal network pipe unit is very limited, is difficult to reach the requirement of 50,000 terminals of management.
3) cause terminal network guard system performance bottleneck easily.In direct network management system, how effectively, alarm, the performance data of collection terminal also are the problems that the terminal network guard system is difficult to overcome in time.For the condition monitoring of terminal, such as the on-line state, common acceptable time of delay is at 1-3 about second, otherwise just lost the meaning of real-time monitoring; For performance data, statistics such as service quality (QoS) data, no matter adopt terminal initiatively to report still terminal network guard system active inquiry, all the ability to the terminal network guard system has proposed challenge, generally based on Simple Network Management Protocol (SNMP, during SimpleNetwork Management Protocol) data polling, the maximum per seconds of terminal can report 11 records, can be lower based on the data polling efficient of Transmission Control Protocol.Management capacity according to 50,000 terminals of terminal network guard system calculates, suppose that convergence ratio is 1:100, so, in each second, for the interaction times of gathering a certain performance parameter is 500 times, in direct network management system, the terminal network guard system is responsible for all and interactive operation terminal, this will produce at one time, may just not gather a certain item number certificate alternately to same terminal, may need to collect simultaneously alarm data, gather other performance data, carry out configuration operation etc., like this, the interaction times of terminal network guard system and terminal may be 500 several times in each second.In this case, the disposal ability bottleneck of terminal network pipe unit is difficult to overcome.
Fig. 2 is the flow chart of the direct network management method of prior art, wherein, step 200a～step 201a is the situation that terminal initiatively reports to the terminal network pipe unit, earlier send the active request reporting message by terminal to the terminal network pipe unit, carry relevant monitor data information in this active request reporting message to terminal, usually, after the terminal network pipe unit receives the monitor data information that terminal initiatively reports, can return response message to terminal, receive successfully with expression; Step 200b～step 201b is the situation of terminal network pipe unit active to terminal inquiry, earlier send the active request query messages by the terminal network pipe unit to terminal, after terminal receives the request of terminal network pipe unit active inquiry monitor data information, return the response message of the relevant monitor data information that carries this terminal to the terminal network pipe unit.
Another management to terminal realizes by indirect network management system, Fig. 3 is that the indirect network management system of prior art is formed schematic diagram, as shown in Figure 3, not having an independently terminal network guard system in the network management system indirectly, is that the virtual port of terminal as AN come terminal is managed.Such as, to subscribers feeder (xDSL based on certain digital loop, x Digital Subscriber Line) realization, xDSL terminal are used as a physical port of Digital Subscriber Line Access Multiplexer (DSLAM, Digital SubscriberLine Access Multiplexer) and manage; For arriving X (FTTX based on optical fiber, Fibre To The X) realization, just be meant that such as FTTH Fiber to the home, fiber access terminal equipment (ONU/T, Optical Network Unit/Termination) is used as office side fiber access device (OLT, Optical Line Termination) link on port, this link has LLID (LLID, Logical Link Identifier), like this, by the management by the link of OLT port and LLID appointment having been realized management to ONU/T.
Thick dashed line shown in Fig. 3 represent to see through message flow that the access device network management unit manages CNG to, Fig. 4 is the flow chart of the indirect network management method of prior art, step 300 is passed through AN for the access device network management unit, send the active request query messages to terminal, after terminal receives the request of access device network management unit active inquiry monitor data information, return the response message of the relevant monitor data information that carries this terminal to the access device network management unit.In indirect network management system, because terminal is linked in the network by AN, therefore, if physical circuit/link layer termination of terminal and AN can be oriented the fault point exactly, management to terminal can not manage by the IP path, can save IP like this, and at the up IP path of terminal obstructed and physical link just often, the access device network management unit still can be initiated query requests to terminal.But network management system is narrow to the range of management of terminal indirectly, and management information only comprises the funtion part of AN management self port, such as the activation (port enables or shields) of port, the network parameter configuration of the physical layer of port, link layer etc.Because terminal only is used as a port and manages, the very difficult difference that adapts to terminal type is well carried out the differentiation management, and mainly there is following shortcoming in network management system indirectly:
1) can't provide the differentiation of terminal to manage.Under this pattern, terminal is conceptualized as the logic port of AN, the device type of terminal, model, all conductively-closeds of software and hardware version also can't be satisfied when bringing simple and convenient management at concrete device type, model, software and hardware version and carry out personalized parameter setting.
2) terminal management of access device network management system is limited in one's ability.Needing at present the terminal of management, is intelligentized mostly, may be in these terminals built-in firewall strategy, configuration qos policy etc.These characteristics comparatively complicated and for adapt to terminal traffic often needs do dynamic adjustment, and as the management function system that AN itself mainly is provided, ability and flexibility such as terminal management that the access device network management system provides are restricted.
3) the interconnection and interflow difficulty of access device network management unit and terminal room.By access device network management unit office terminal, in the interface between AN and the terminal, the easy standardization of the foundation of link management and maintenance interface, but for the interface of the concrete traffic performance of terminal carrying is because professional flexibility standardization fully itself.Like this, make that the access device network management unit of different vendor and the interconnection and interflow between the terminal are very difficult.
4) to inserting the performance requirement harshness of facility network pipe unit and AN.All management flows for terminal all need bring bigger processing expenditure to AN by the AN transfer; Same, for the access device network management unit, except finishing normal AN management function, all configurations, the alarm/performance data that also need to finish terminal are collected, to the functions such as whole net statistical analysis of terminal.Therefore, the requirements such as performance to access facility network pipe unit and AN are harsh in the indirect network management system.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of network management system, can improve the reliability of the network management system that terminal is managed, and realizes the differentiation management to terminal simultaneously.
Another object of the present invention is to provide a kind of network management system to realize the method for webmaster, this method can improve the reliability of network management system based on network management system of the present invention, realizes the differentiation management to terminal simultaneously.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of network management system, this system comprises: terminal, terminal network pipe unit, access device and access device network management unit that terminal is managed;
Wherein, the terminal network pipe unit receives from the above terminal management information of link of terminal layer, and terminal is carried out direct webmaster; Or receive self terminal by the access device network management unit with physical layer, terminal management information that link layer is relevant, terminal is carried out indirect webmaster;
The access device network management unit, receive self terminal through access device with physical layer, terminal management information that link layer is relevant, and be transmitted to the terminal network pipe unit;
Access device is used to transmit mutual information between terminal and access device network management unit.
Described access device network management unit also comprises: what will receive sends to the application system that needs this terminal management information with physical layer, terminal management information that link layer is relevant.
Be connected by second interface between described access device network management unit and the application system that needs this terminal management information; Described application system is OSS OSS;
The protocol type of described second interface is the variant agreement based on extending mark language XML.
Be connected by first interface between described terminal network pipe unit and access device network management unit.
Described first interface comprises:
The state information interface of terminal, being used for the access device network management unit provides terminal's status information to the terminal network pipe unit;
Test and diagnose interface are used for interactive testing and diagnostic message between access device network management unit and terminal network pipe unit.
Described test and diagnose interface comprise:
Be used to notify the notification interface of session between terminal and terminal network pipe unit;
The state that is used for one or one group terminal of terminal network pipe unit inquiry appointment, perhaps a certain access device down with the status poll interface of state of all terminals;
Be used to notify the terminal network pipe unit, the state notifying interface of the terminal management information of the current terminal that is connected to of access device network management unit;
Be used for the terminal network pipe unit by the access device network management unit, the test interface that terminal is tested;
Be used for the reseting interface that the terminal network pipe unit resets by access device network management unit control terminal;
Be used for the terminal network pipe unit imports the terminal information of needs management from the access device network management unit synchronous terminal interface.
The protocol type of described first interface is the variant agreement based on extending mark language XML.
A kind of network management system realizes the method for webmaster, the network management system of terminal network pipe unit, access device and the access device network management unit that be used for comprising terminal, terminal is managed, and this method comprises:
The terminal network pipe unit obtains the above terminal management information of link layer from terminal, and according to the above terminal management information of link layer that obtains terminal is carried out direct webmaster;
The terminal network pipe unit obtains and physical layer, terminal management information that link layer is relevant by access device network management unit and access device, and according to obtain with physical layer, terminal management information that link layer is relevant, terminal is carried out indirect webmaster.
The method that described terminal network pipe unit obtains the above terminal management information of link layer is:
Described terminal network pipe unit receives the above terminal management information of link layer that described terminal initiatively reports; Or described terminal network pipe unit is to described terminal inquiry terminal management information, the above terminal management information of link layer that described terminal is returned terminal self to described terminal network pipe unit.
Described terminal network pipe unit obtains with the method for physical layer, terminal management information that link layer is relevant:
Described terminal network pipe unit is to described access device network management unit requesting terminal management information, described access device network management unit through described access device to described terminal inquiry terminal management information, and will return be transmitted to described terminal network pipe unit with physical layer, terminal management information that link layer is relevant.
This method also comprises: described terminal network pipe unit is directly to the information more than the described terminal configuration terminal links layer, or by described access device network management unit to terminal configuration and physical layer, terminal management information that link layer is relevant.
This method also comprises: described access device network management unit is initiatively initiated test or diagnosis to described terminal through described access device, and transmits test or the diagnostic response result that terminal is returned through described access device to described terminal network pipe unit.
This method also comprises: described access device network management unit will receive with physical layer, terminal management information that link layer is relevant, send to the system that needs this terminal management information.
Be connected by first interface between described terminal network pipe unit and access device network management unit; The information of the described first interface transmission comprises state, test and the diagnostic message of terminal.
The state information of described terminal comprises:
The terminal iidentification that is used for a terminal of unique identification;
The terminated line sign that is used for the line attachment of marking terminal;
Terminal type; The identification of the manufacturer of the production firm of terminal;
The state that is used for the terminal of indicating terminal current state;
Terminal reach the standard grade information and terminal offline information.
Described terminal type is an enumeration type, comprising: online, and/or off-line, and/or line fault, and/or test.
Described test and diagnostic message comprise:
Be used to trigger the announcement information of session between described terminal and described terminal network pipe unit;
The state that is used for one or one group terminal of described terminal network pipe unit inquiry appointment, perhaps a certain access device down with the status poll information of state of all terminals;
Be used to notify described terminal network pipe unit, the state notifying information of the terminal management information of the current terminal that is connected to of described access device network management unit;
Be used for described terminal network pipe unit by described access device network management unit, the detecting information that described terminal is tested;
Be used for the repositioning information that described terminal network pipe unit resets by described access device network management unit control terminal;
Be used for described terminal network pipe unit imports the terminal information of needs management from described access device network management unit synchronous terminal information.
The method of the session between described triggering terminal and terminal network pipe unit is:
Described terminal network pipe unit sends the notification request message that requires with the designated terminal session to described access device network management unit;
Described access device network management unit returns the notice answer the message whether described designated terminal of indication can carry out session with described terminal network pipe unit to the terminal network pipe unit.
Carry terminal iidentification and terminated line sign in the described notification request message; Described notice is replied the operating result that message can carry terminal iidentification, terminated line sign and indicate described designated terminal whether can carry out session with described terminal network pipe unit.
The method of the state information of described terminal network pipe unit inquiry terminal is:
Described terminal network pipe unit sends the status query request message of the state information of inquiry designated terminal to described access device network management unit;
Described Access Network pipe unit is replied message to the status query request that described terminal network pipe unit returns the terminal's status information that carries described designated terminal.
Carry the access device sign that is used to identify the affiliated access device of described designated terminal in the described status query request message, and the end message of described designated terminal;
Described status query request is replied in the message and is also carried: the operating result whether the sign inquiry is successful.
The method of the terminal management information of described notice terminal network pipe unit terminal is: described access device network management unit is carried at terminal's status information in the terminal's status information notification message, and sends to described terminal network pipe unit.
This method also comprises: described terminal network pipe unit returns the terminal's status information answer message whether expression successfully receives described terminal's status information notification message to described access device network management unit.
Described terminal's status information comprises: terminal iidentification, and/or terminated line sign, and/or terminal type, and/or identification of the manufacturer, and/or the state of terminal, and/or terminal reach the standard grade information and/or terminal offline information.
The method of described terminal network pipe unit test terminal is:
Described terminal network pipe unit sends the test request message of test designated terminal to described access device network management unit;
After described access device network management unit receives test request message, return test returns message to described terminal network pipe unit.
The test terminal of described appointment is one or more.
This method also comprises: described access device network management unit is carried at test result and sends to described terminal network pipe unit in the test result notification message.
The method of described terminal network pipe unit reseting terminal is:
Described terminal network pipe unit sends the terminal reset request message of the designated terminal that resets to described access device network management unit;
Described access device network management unit returns the terminal that carries the result that the resets answer message that resets to described terminal network pipe unit.
The method that described terminal network pipe unit imports terminal information is:
Described terminal network pipe unit sends the terminal synchronizes information request message to described access device network management unit;
After described access device network management unit receives described terminal synchronizes information request message, end message is carried at synchronizing information replys in the message, and send to described terminal network pipe unit.
As seen from the above technical solution, in the network management system of the present invention, the terminal network pipe unit is directly managed terminal, the terminal network pipe unit carries out indirect control by the access device network management unit to terminal simultaneously, thereby improved the reliability of network management system, promoted systematic function, realized simultaneously the differentiation of terminal is managed the terminal that has promptly realized different access waies, the differentiation management of dissimilar terminals, promote the management capacity of system, also overcome the shortcoming that the direct network management system of prior art and indirect two kinds of network management systems of network management system are brought.In addition, test that network management system of the present invention provides and diagnostic function have been realized the more reliable test to terminal.Fault detect more accurately provides unified business to enable to ensure strategy; Terminal network pipe unit of the present invention has compatibility forward, to in the past based on the management of the terminal of direct management, indirect control mode, can unify in the same network management system of the present invention, the more suitable O﹠M scenarios that separates with service operation with access is for the automation of service dispense, service dispense end to end provides the foundation.
Description of drawings
Fig. 1 is that the direct network management system of prior art is formed schematic diagram;
Fig. 2 is the flow chart of the direct network management method of prior art;
Fig. 3 is that the indirect network management system of prior art is formed schematic diagram;
Fig. 4 is the flow chart of the indirect network management method of prior art;
Fig. 5 is that network management system of the present invention is formed schematic diagram;
Fig. 6 is the flow chart that network management system of the present invention realizes the method for webmaster.
Embodiment
Core concept of the present invention is: network management system comprises terminal, terminal network pipe unit, access device and access device network management unit; The terminal network pipe unit is used for receiving from the above terminal management information of link of terminal layer, terminal is directly managed, and receive self terminal by the access device network management unit with physical layer, terminal management information that link layer is relevant, terminal is carried out indirect webmaster; The access device network management unit receive self terminal through access device with physical layer, terminal management information that link layer is relevant, and be transmitted to the terminal network pipe unit; Access device is used to transmit mutual information between terminal and access device network management unit.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 5 is that network management system of the present invention is formed schematic diagram, and as shown in Figure 5, network management system of the present invention comprises terminal, terminal network pipe unit, access device and access device network management unit.
Wherein, terminal such as CNG are connected with the terminal network pipe unit by a interface, and and the terminal network pipe unit between by independently directly webmaster realize mutual, terminal can initiatively report self-management information to the terminal network pipe unit, also can return the management information of terminal self more than the link layer to the terminal network pipe unit under the inquiry of terminal network pipe unit; Simultaneously, terminal is used as the virtual port of access device, provides and physical layer, terminal management information that link layer is relevant to the access device network management unit by access device;
The terminal network pipe unit is used for receiving from the above terminal management information of link of terminal layer, and terminal is directly managed, and the terminal network pipe unit can initiatively be initiated the inquiry terminal state to terminal, the terminal management information that also can receiving terminal initiatively reports; The terminal network pipe unit also is connected with the access device network management unit by the n1 interface, receive self terminal with physical layer, terminal management information that link layer is relevant, realization can comprise inquiry, test and diagnosis to terminal to the indirect control of terminal; The terminal network pipe unit can also be directly to the information more than the terminal configuration terminal links layer, or by the Access Layer network management unit to terminal configuration and physical layer, terminal management information that link layer is relevant.
Access device is used to transmit mutual information between terminal and access device network management unit, is connected by the b interface between access device and access device network management unit;
The access device network management unit, reception through access device transmit come self terminal with physical layer, terminal management information that link layer is relevant, and be transmitted to the terminal network pipe unit, the access device network management unit can be under the request of terminal network pipe unit, initiate the request of inquiry terminal state through access device to terminal, and the terminal management information of returning is transmitted to the terminal network pipe unit; Also can initiate line test and diagnosis, and the terminal network pipe unit is given in the response of forwarding terminal to terminal.
Mainly the physical layer with terminal is relevant with diagnosis with the link layer configuration for the function that the access device network management unit provides by the n1 interface, and the parameter configuration of this part can solve the physics of terminal and AN, the connectedness of link.In addition function, all be adapted at the terminal network pipe unit directly and terminal interaction finish.
From Fig. 5 as seen, network management system of the present invention is by independently the realization of terminal network pipe unit is to the management of terminal, and on the one hand, the terminal network pipe unit is directly managed professional relevant characteristic more than the link of terminal layer; On the other hand, the terminal network pipe unit is by the access device network management unit, to carrying out indirect control with physical layer, terminal management information that link layer is relevant.Network management system of the present invention has merged direct network management system of prior art and indirect network management system, thereby improved the reliability of network management system, realized differentiation management simultaneously, also overcome the shortcoming that the direct network management system of prior art and indirect two kinds of network management systems of network management system are brought terminal.
Further, access device network management unit in the network management system of the present invention can also pass through other preset interface such as n2 interface, to OSS (OSS, Operations Support System) wait other system that the needs of observation, test and diagnosis to terminal are provided, the mode that provides, content can be consistent with the n1 interface.
Below in conjunction with embodiment the specific implementation of network management system of the present invention is described further:
B interface between a interface of terminal network pipe unit and terminal room, access device network management unit and access device can be IP-based path, and management agreement can be the variant agreement of snmp protocol, extending mark language (XML) etc.
The concrete protocol type of the n1 interface between access device network management unit and terminal network pipe unit is not limit, and can be based on the variant agreement of XML etc.
The terminal network pipe unit can obtain status data, execution test and the diagnostic command etc. of terminal by the n1 interface from the access device network management unit; In addition, the access device network management unit also can pass through other interface such as n2 interface, and the management information of the equipment that will obtain by the n1 interface offers other system such as OSS and uses, and satisfies the needs of other system to the observation of the state of terminal, test, diagnosis etc.The mode that the n2 interface provides, content are identical with the n1 interface.In detail the n1 interface is described below.
State, test and the diagnostic message that will comprise terminal by the information spinner of n1 interface transmission.The n1 interface is divided into: the state information interface of terminal, and being used for the access device network management unit provides terminal's status information to the terminal network pipe unit; Test and diagnose interface are used for interactive testing and diagnostic message between access device network management unit and terminal network pipe unit.Wherein test and diagnose interface comprise:
The notification interface that is used for session between triggering terminal and terminal network pipe unit;
The state that is used for one or one group terminal of terminal network pipe unit inquiry appointment, perhaps a certain access device down with the status poll interface of state of all terminals;
Be used to notify the terminal network pipe unit, the state notifying interface of the terminal management information of the current terminal that is connected to of access device network management unit;
Be used for the terminal network pipe unit by the access device network management unit, the test interface that terminal is tested;
Be used for the reseting interface that the terminal network pipe unit resets by access device network management unit control terminal;
Be used for the terminal network pipe unit imports the terminal information of needs management from the access device network management unit synchronous terminal interface.
Need to prove, when specifically implementing flexibly selectivity increase or reduce the information of transmitting by each interface in the n1 interface, be described below one by one:
1) state interface of terminal is used to transmit the state information of terminal.
The terminal's status information that the state information of access device network management unit by terminal provides to the terminal network pipe unit can the carried terminal sign, terminated line sign, terminal type, identification of the manufacturer, the state of terminal, terminal are reached the standard grade information and terminal offline information etc., but is not limited thereto.Description to each terminal's status information is as shown in table 1:
| The state information title | Function | Describe |
| Terminal iidentification | Be used for terminal of unique identification | Organization unique identifier (OUI, Organizational Unit Identification)-sequence number, manufacturer need guarantee that the sequence number of each terminal that self produces is inequality. |
| The terminated line sign | The line attachment that is used for marking terminal | Constitute element and can comprise the positional information of AN sign (AN-ID), AN that terminal connected such as frame/groove/pilot trench/port numbers etc., the current void sign of terminal; Form can be: AN-ID/ frame/groove/pilot trench/port/void sign. |
| Terminal type | The unit type of terminal | Include but not limited to identification of the manufacturer OUI, device type |
| Identification of the manufacturer | The generation manufacturer of terminal | This information is optional, does not use when not comprising the OUI of manufacturer in the terminal iidentification; Form can be OUI. |
| The state of terminal | Be used for the current state of indicating terminal. | This information is enumeration type, and the value of the state of terminal can be: online (online), off-line (offline), line fault (link failure), test (testing) etc. |
| The terminal information of reaching the standard grade | Be used for the indicating terminal information of reaching the standard grade | Comprise on-line time etc. |
| The terminal offline information | Be used for the indicating terminal offline information | Comprise the time of rolling off the production line etc. |
Table 1
If the state of terminal is owing to off-line takes place line fault in the table 1, then SOT state of termination should be set to line fault, rather than off-line, to be different from the situation that terminal initiatively rolls off the production line.And after AN detects terminal abnormal and rolls off the production line, can link be detected, with the state of accurate reflection terminal;
When a plurality of terminals are connected to the same physical port of same AN, adopt the void sign in the terminated line sign that terminal is distinguished, may be connected to such as a plurality of ONU on the same port of same OLT, OLT is by a port and the unique definite ONU of LLID.One to one under the situation, empty sign can be set to 0 at terminal and AN port.
2) test and diagnose interface are used for transmitting test and diagnostic message.
The access device network management unit can comprise by test and diagnose interface mutual test and diagnostic message between access device network management unit and terminal network pipe unit, but be not limited to announcement information, status poll information, state notifying information, detecting information, repositioning information and synchronous terminal information etc., specifically describe as follows:
A) notification interface is used to transmit announcement information.
Be used for that triggering terminal is initiatively initiated and the terminal network pipe unit between a session.Main purpose is when solving terminal and being subjected to NAT or firewall protection, and the terminal network pipe unit can't initiatively be set up the situation of communication link with terminal.Can carry self state information and parameter configuration when terminal is initiatively set up session, also can not carry.
The terminal network pipe unit is notice request (NOTIFY_REQ) message to the request message that the access device network management unit sends, and can carry in this NOTIFY_REQ message but is not limited to the parameter shown in the table 2:
| Parameter name | Function | Parametric description |
| Terminal iidentification | Be used for terminal of unique identification | The OUI-sequence number, manufacturer need guarantee that the sequence number of each terminal that self produces is inequality. |
| The terminated line sign | The line attachment that is used for marking terminal | Constitute element and can comprise the positional information of AN sign (AN-ID), AN that terminal connected such as frame/groove/pilot trench/port numbers etc., the current void sign of terminal; Form can be the empty sign of: AN-ID/ frame/groove/pilot trench/port/*. |
Table 2
The response message that the access device network management unit returns to the terminal network pipe unit is replied (NOTIFY_RESP) message for notice, can carry in this NOTIFY_RESP message but is not limited to the parameter shown in the table 3:
| Parameter name | Function | Parametric description |
| Terminal iidentification | Be used for terminal of unique identification | The OUI-sequence number, manufacturer need guarantee that the sequence number of each terminal that self produces is inequality. |
| The terminated line sign | The line attachment that is used for marking terminal | Constitute element and can comprise the positional information of AN sign (AN-ID), AN that terminal connected such as frame/groove/pilot trench/port numbers etc., the current void sign of terminal; Form can be the empty sign of: AN-ID/ frame/groove/pilot trench/port/*. |
| Operating result | Be used to notify terminal whether to carry out session with the terminal network pipe unit. | The access device network management unit receives after the request that requesting terminal at once sets up the IP session with the terminal network pipe unit, successfully notifies terminal then to return 0 value.Other return error code. |
Table 3
Wherein, in the error code, can adopt 1 expression terminal off-line, 2 expression terminals can't be created the connection session with the terminal webmaster.Need to prove, just illustrate herein, and be not used in the concrete implication that limits each numeral.
B) the status poll interface is used for the transmit mode Query Information.
The terminal network pipe unit can be by or one group of terminal of n1 interface inquiry appointment, perhaps a certain AN down with the state of all terminals.
The terminal network pipe unit passes through to access device network management unit transmit status query requests (GET_CPE_STATUS_REQ) message, and to obtain the state information of certain terminal of inquiry, this GET_CPE_STATUS_REQ message can be carried but is not limited to the parameter shown in the table 4:
| Parameter name | Function | Parametric description |
| The AN sign | Be used to identify the AN under the terminal of being inquired about. | The unique identification of the AN that can discern for IP address or other access device management systems of AN as |
| AN_ID etc. | ||
| End message | Be used to identify the terminal of being inquired about | Can be the set of the terminal iidentification of terminal, terminated line sign etc.If this parameter is empty, the state information of all terminals under the AN of expression inquiry AN sign appointment. |
Table 4
The response message that the Access Network pipe unit returns to the terminal network pipe unit is that status query request is replied (GET_CPE_STATUS_RESP) message, and this GET_CPE_STATUS_RESP message can be carried but is not limited to the parameter shown in the table 5:
| Parameter name | Function | Parametric description |
| Operating result | Being used to identify successful inquiring denys | Successfully return 0 value.Other returns error code. |
| Terminal's status information | Be used for the indicating terminal current state | Can be the reach the standard grade set of information and terminal offline information etc. of terminal iidentification, terminated line sign, terminal type, identification of the manufacturer, the state of terminal, terminal. |
Table 5
Wherein, in the error code, can adopt the mistake of 1 sign access device network management unit inside.
C) the state notifying interface is used for the transmit mode announcement information.
The access device network management unit can its current terminal that is connected to of proactive notification terminal network pipe unit terminal management information.Here the management information of the terminal that can be only initiatively changes to access device network management unit uploaded state or physical location of AN; The terminal that does not have to change for state, geographical position does not need proactive notification, to improve system effectiveness.
The message that the access device network management unit sends to the terminal network pipe unit is terminal's status information notice (INFORM_CPE_STATUS_REQ) message, and this INFORM_CPE_STATUS_REQ message can be carried but is not limited to the parameter shown in the table 6:
| Parameter name | Function | Parametric description |
| Terminal's status information | The terminal's status information that needs notice | Can comprise the set of one or more terminals for the set of the state of terminal iidentification, terminated line sign and terminal etc. |
Table 6
At least comprise the trigram element described in the table 6 in this terminal's status information set, also can comprise other terminal management information according to the practical application expansion.
The response message that the terminal network pipe unit returns to the access device network management unit is that terminal's status information is replied (INFORM_CPE_STATUS_RESP) message, and this INFORM_CPE_STATUS_RESP message can be carried but is not limited to the parameter shown in the table 7:
| Parameter name | Function | Parametric description |
| Operating result | The affirmation result that the terminal management unit returns | The terminal network pipe unit receives notification message and represents success, returns 0 value; Other returns error code. |
Table 7
Wherein, in the error code, the mistake of 1 expression terminal network pipe unit inside.
D) test interface is used to transmit detecting information.
The terminal network pipe unit can pass through the access device network management unit, and terminal is tested, and concrete test function is relevant with terminal type.
The terminal network pipe unit sends test request (TEST_REQ) message to the access device network management unit, can carry in this TEST_REQ message but is not limited to the parameter shown in the table 8:
| Parameter name | Function | Parametric description |
| Serial number | Be used to identify the serial number of test assignment. | By the concrete testing time and at random sequence number form, form can be date Hour Minute Second _ sequence number (YYYYMMDDHHMMSS_ sequence number). |
| Test-types | Be used to specify concrete test-types. | Be enumeration type, can expand that optionally test comprises: the test of uplink traffic transmission speed, the test of downlink traffic transmission speed, link go-and-return test etc. according to concrete test request. |
| Test parameter | Be used to specify concrete test parameter. | Expand according to concrete test request |
| End message | Be used to identify tested terminal. | Can be the set of the terminal iidentification of terminal, terminated line sign etc. |
Table 8
The terminal network pipe unit can be initiated the test to a plurality of terminals simultaneously at a test.
The access device network management unit returns test returns (TEST_RESP) message to the terminal network pipe unit after receiving the TEST_REQ request, and this TEST_RESP message can be carried but is not limited to the parameter shown in the table 9:
| Parameter name | Function | Parametric description |
| Serial number | Be used to identify the serial number of test assignment. | By the concrete testing time and at random sequence number form, form can be date Hour Minute Second sequence number (YYYYMMDDHHMMSS_ sequence number). |
| Operating result | Be used to notify the result of this test of terminal webmaster | Success notifies terminal to return 0 value.Other returns error code. |
Table 9
Wherein, in the error code, the mistake of 1 expression access device network management unit inside.In addition, execute the test command of formulation at the access device network management unit after, can notify (INFORM_TEST_RESULT) message by test result, send test result after terminal tested to the terminal network pipe unit.
INFORM_TEST_RESULT message can be carried but is not limited to the parameter shown in the table 10:
| Parameter name | Function | Parametric description |
| Serial number | Be used to identify the serial number of test assignment. | By the concrete testing time and at random sequence number form, form can be date Hour Minute Second _ sequence number (YYYYMMDDHHMMSS_ sequence number). |
| Test result | Be used to represent test result | Can be the result's of the terminal iidentification of terminal, terminated line sign, each test parameter correspondence etc. set. |
Table 10
E) reseting interface is used to transmit repositioning information.
The terminal network pipe unit can reset by access device network management unit control terminal.Unusual but under the situation that terminal is online, the terminal network pipe unit can force to control reseting terminal at the IP path, make it rebulid session with the terminal network pipe unit.
The terminal network pipe unit sends terminal reset request (RESET_CPE_REQ) message to the access device network management unit, can carry in this RESET_CPE_REQ message but is not limited to the parameter shown in the table 11:
| Parameter name | Function | Parametric description |
| Terminal iidentification | Be used for terminal of unique identification | The OUI-sequence number, manufacturer need guarantee that the sequence number of each terminal that self produces is inequality. |
| The terminated line sign | The line attachment that is used for marking terminal | Constitute element and can comprise the positional information of AN sign (AN-ID), AN that terminal connected such as frame/groove/pilot trench/port numbers etc., the current void sign of terminal; Form can be the empty sign of: AN-ID/ frame/groove/pilot trench/port/*. |
Table 11
The response message that the access device network management unit returns to the terminal network pipe unit is terminal answer (RESET_CPE_RESP) message that resets, and this RESET_CPE_RESP message can be carried but is not limited to the parameter shown in the table 12:
| Parameter name | Function | Parametric description |
| Terminal iidentification | Be used for terminal of unique identification | The OUI-sequence number, manufacturer need guarantee that the sequence number of each terminal that self produces is inequality. |
| The terminated line sign | The line attachment that is used for marking terminal | Constitute element and can comprise the positional information of AN sign (AN-ID), AN that terminal connected such as frame/groove/pilot trench/port numbers etc., the current void sign of terminal; Form can be the empty sign of: AN-ID/ frame/groove/pilot trench/port/*. |
| Operating result | The result that resets of notice terminal | The success reseting terminal returns 0 value.Other return error code. |
Table 12
Wherein, 1 expression terminal off-line in the error code, 2 expression terminals are not supported reset function.
F) the synchronous terminal interface is used to transmit synchronous terminal information.
By synchronous terminal, the terminal network pipe unit can import the terminal information that needs management from the access device network management unit.
The terminal network pipe unit sends terminal synchronizes information request (SYNC_CPE_INFO_REQ) message to the access device network management unit, with the acquisition request terminal information.
After the access device network management unit receives SYNC_CPE_INFO_REQ message, return terminal synchronizes information-reply (SYNC_CPE_INFO_RESP) message to the terminal network pipe unit, can carry in this SYNC_CPE_INFO_RESP message but be not limited to the parameter shown in the table 13:
| Parameter name | Function | Parametric description |
| Operating result | The result of notice terminal | Success notifies terminal to return 0 value.Other return error code. |
| End message | Be used for marking terminal. | Can be the set of the terminal iidentification of terminal, terminated line sign etc. |
Table 13
Wherein, in the error code, the internal error of 1 expression access device network management unit.
More than the information of passing through the n1 interactive interfacing in the network management system of the present invention is described in detail, preferably, access device is transparent transmission access device network management unit and the mutual information of terminal room only, thereby simplified the requirement to access device.In addition, to the terminal network pipe unit, at first should satisfy the functional requirement of n1 interface; When increasing end message, preferably increase the information of the AN of this newly-increased terminal correspondence simultaneously, so that can in time obtain the state of terminal from AN; The terminal network pipe unit can obtain the information of AN by the n1 interface, and the information of AN can comprise AN sign, geographical position etc., the accurate geographical position that can obtain terminal data and definite terminal so easily from the access device network management unit; The compatible directly way to manage of terminal network pipe unit.
Fig. 6 is the flow chart of terminal network management method of the present invention, and wherein the realization of step 600a～step 601a is consistent with the realization of step 200a～step 201a; The realization of step 600b～step 601b is consistent with the realization of step 200b～step 201b;
To be the terminal network pipe unit obtain the management information of terminal by the access device network management unit to step 600c～step 602c, is implemented as follows:
Step 600c: the terminal network pipe unit sends the active request query messages to the access device network management unit, and the access device network management unit is transmitted to access device with the active request query messages that receives.
Step 601c: access device is transmitted to terminal with the active request query messages that receives, and terminal is returned the management information of terminal to access device.
Need to prove,, obtain, can omit this step so such as inquiry regularly if access device has obtained the management information of equipment.
Step 602c: access device returns the terminal management information of request to the terminating gateway unit through the access device network management unit.
From flow chart shown in Figure 6 as seen, among the present invention, the terminal network pipe unit is directly managed terminal, the terminal network pipe unit carries out indirect control by the access device network management unit to terminal simultaneously, thereby improved the reliability of network management system, promoted systematic function, realized simultaneously the differentiation of terminal is managed the terminal that has promptly realized different access waies, the differentiation management of dissimilar terminals, promote the management capacity of system, also overcome the shortcoming that the direct network management system of prior art and indirect two kinds of network management systems of network management system are brought.In addition, test that network management system of the present invention provides and diagnostic function have been realized the more reliable test to terminal.Fault detect more accurately provides unified business to enable to ensure strategy; Terminal network pipe unit of the present invention has compatibility forward, to in the past based on the management of the terminal of direct management, indirect control mode, can unify in the same network management system of the present invention, the more suitable O﹠M scenarios that separates with service operation with access is for the automation of service dispense, service dispense end to end provides the foundation.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (29)
1. a network management system is characterized in that, this system comprises: terminal, terminal network pipe unit, access device and access device network management unit that terminal is managed;
Wherein, the terminal network pipe unit receives from the above terminal management information of link of terminal layer, and terminal is carried out direct webmaster; Or receive self terminal by the access device network management unit with physical layer, terminal management information that link layer is relevant, terminal is carried out indirect webmaster;
The access device network management unit, receive self terminal through access device with physical layer, terminal management information that link layer is relevant, and be transmitted to the terminal network pipe unit;
Access device is used to transmit mutual information between terminal and access device network management unit.
2. system according to claim 1 is characterized in that, described access device network management unit also comprises: what will receive sends to the application system that needs this terminal management information with physical layer, terminal management information that link layer is relevant.
3. system according to claim 2 is characterized in that, is connected by second interface between described access device network management unit and the application system that needs this terminal management information; Described application system is OSS OSS;
The protocol type of described second interface is the variant agreement based on extending mark language XML.
4. system according to claim 1 is characterized in that, is connected by first interface between described terminal network pipe unit and access device network management unit.
5. system according to claim 4 is characterized in that, described first interface comprises:
The state information interface of terminal, being used for the access device network management unit provides terminal's status information to the terminal network pipe unit;
Test and diagnose interface are used for interactive testing and diagnostic message between access device network management unit and terminal network pipe unit.
6. system according to claim 5 is characterized in that, described test and diagnose interface comprise:
The notification interface that is used for session between triggering terminal and terminal network pipe unit;
The state that is used for one or one group terminal of terminal network pipe unit inquiry appointment, perhaps a certain access device down with the status poll interface of state of all terminals;
Be used to notify the terminal network pipe unit, the state notifying interface of the terminal management information of the current terminal that is connected to of access device network management unit;
Be used for the terminal network pipe unit by the access device network management unit, the test interface that terminal is tested;
Be used for the reseting interface that the terminal network pipe unit resets by access device network management unit control terminal;
Be used for the terminal network pipe unit imports the terminal information of needs management from the access device network management unit synchronous terminal interface.
7. system according to claim 4 is characterized in that, the protocol type of described first interface is the variant agreement based on extending mark language XML.
8. a network management system realizes the method for webmaster, and the network management system of terminal network pipe unit, access device and the access device network management unit that be used for comprising terminal, terminal is managed is characterized in that this method comprises:
The terminal network pipe unit obtains the above terminal management information of link layer from terminal, and according to the above terminal management information of link layer that obtains terminal is carried out direct webmaster;
The terminal network pipe unit obtains and physical layer, terminal management information that link layer is relevant by access device network management unit and access device, and according to obtain with physical layer, terminal management information that link layer is relevant, terminal is carried out indirect webmaster.
9. method according to claim 8 is characterized in that, the method that described terminal network pipe unit obtains the above terminal management information of link layer is:
Described terminal network pipe unit receives the above terminal management information of link layer that described terminal initiatively reports; Or described terminal network pipe unit is to described terminal inquiry terminal management information, the above terminal management information of link layer that described terminal is returned terminal self to described terminal network pipe unit.
10. method according to claim 9 is characterized in that, described terminal network pipe unit obtains with the method for physical layer, terminal management information that link layer is relevant and is:
Described terminal network pipe unit is to described access device network management unit requesting terminal management information, described access device network management unit through described access device to described terminal inquiry terminal management information, and will return be transmitted to described terminal network pipe unit with physical layer, terminal management information that link layer is relevant.
11. method according to claim 9, it is characterized in that, this method also comprises: described terminal network pipe unit is directly to the information more than the described terminal configuration terminal links layer, or by described access device network management unit to terminal configuration and physical layer, terminal management information that link layer is relevant.
12. method according to claim 9, it is characterized in that, this method also comprises: described access device network management unit is through described access device, initiatively initiate test or diagnosis, and transmit test or the diagnostic response result that terminal is returned to described terminal network pipe unit through described access device to described terminal.
13., it is characterized in that this method also comprises according to claim 9 or 12 described methods: described access device network management unit will receive with physical layer, terminal management information that link layer is relevant, send to the system that needs this terminal management information.
14. method according to claim 9 is characterized in that, is connected by first interface between described terminal network pipe unit and access device network management unit; The information of the described first interface transmission comprises state, test and the diagnostic message of terminal.
15. method according to claim 14 is characterized in that, the state information of described terminal comprises:
The terminal iidentification that is used for a terminal of unique identification;
The terminated line sign that is used for the line attachment of marking terminal;
Terminal type; The identification of the manufacturer of the production firm of terminal;
The state that is used for the terminal of indicating terminal current state;
Terminal reach the standard grade information and terminal offline information.
16. method according to claim 15 is characterized in that, described terminal type is an enumeration type, comprising: online, and/or off-line, and/or line fault, and/or test.
17. method according to claim 14 is characterized in that, described test and diagnostic message comprise:
Be used to trigger the announcement information of session between described terminal and described terminal network pipe unit;
The state that is used for one or one group terminal of described terminal network pipe unit inquiry appointment, perhaps a certain access device down with the status poll information of state of all terminals;
Be used to notify described terminal network pipe unit, the state notifying information of the terminal management information of the current terminal that is connected to of described access device network management unit;
Be used for described terminal network pipe unit by described access device network management unit, the detecting information that described terminal is tested;
Be used for the repositioning information that described terminal network pipe unit resets by described access device network management unit control terminal;
Be used for described terminal network pipe unit imports the terminal information of needs management from described access device network management unit synchronous terminal information.
18. method according to claim 17 is characterized in that, the method for the session between described triggering terminal and terminal network pipe unit is:
Described terminal network pipe unit sends the notification request message that requires with the designated terminal session to described access device network management unit;
Described access device network management unit returns the notice answer the message whether described designated terminal of indication can carry out session with described terminal network pipe unit to the terminal network pipe unit.
19. method according to claim 18 is characterized in that, carries terminal iidentification and terminated line sign in the described notification request message; Described notice is replied the operating result that message can carry terminal iidentification, terminated line sign and indicate described designated terminal whether can carry out session with described terminal network pipe unit.
20. method according to claim 17 is characterized in that, the method for the state information of described terminal network pipe unit inquiry terminal is:
Described terminal network pipe unit sends the status query request message of the state information of inquiry designated terminal to described access device network management unit;
Described Access Network pipe unit is replied message to the status query request that described terminal network pipe unit returns the terminal's status information that carries described designated terminal.
21. method according to claim 20 is characterized in that, carries the access device sign that is used to identify the affiliated access device of described designated terminal in the described status query request message, and the end message of described designated terminal;
Described status query request is replied in the message and is also carried: the operating result whether the sign inquiry is successful.
22. method according to claim 17, it is characterized in that, the method of the terminal management information of described notice terminal network pipe unit terminal is: described access device network management unit is carried at terminal's status information in the terminal's status information notification message, and sends to described terminal network pipe unit.
23. method according to claim 22 is characterized in that, this method also comprises: described terminal network pipe unit returns the terminal's status information answer message whether expression successfully receives described terminal's status information notification message to described access device network management unit.
24., it is characterized in that described terminal's status information comprises: terminal iidentification according to claim 20 or 22 described methods, and/or the terminated line sign, and/or terminal type, and/or identification of the manufacturer, and/or the state of terminal, and/or terminal reach the standard grade information and/or terminal offline information.
25. method according to claim 17 is characterized in that, the method for described terminal network pipe unit test terminal is:
Described terminal network pipe unit sends the test request message of test designated terminal to described access device network management unit;
After described access device network management unit receives test request message, return test returns message to described terminal network pipe unit.
26. method according to claim 25 is characterized in that, the test terminal of described appointment is one or more.
27. according to claim 25 or 26 described methods, it is characterized in that this method also comprises: described access device network management unit is carried at test result and sends to described terminal network pipe unit in the test result notification message.
28. method according to claim 17 is characterized in that, the method for described terminal network pipe unit reseting terminal is:
Described terminal network pipe unit sends the terminal reset request message of the designated terminal that resets to described access device network management unit;
Described access device network management unit returns the terminal that carries the result that the resets answer message that resets to described terminal network pipe unit.
29. method according to claim 17 is characterized in that, the method that described terminal network pipe unit imports terminal information is:
Described terminal network pipe unit sends the terminal synchronizes information request message to described access device network management unit;
After described access device network management unit receives described terminal synchronizes information request message, end message is carried at synchronizing information replys in the message, and send to described terminal network pipe unit.
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| CNB2006100576242A CN100502311C (en) | 2006-02-22 | 2006-02-22 | Network management system and its method for realizing network management |
| PCT/CN2006/002681 WO2007095797A1 (en) | 2006-02-22 | 2006-10-12 | A network management system and a method for realizing network management |
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| CNB2006100576242A CN100502311C (en) | 2006-02-22 | 2006-02-22 | Network management system and its method for realizing network management |
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| CN100502311C true CN100502311C (en) | 2009-06-17 |
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| CN101170593B (en) * | 2007-11-26 | 2010-08-11 | 华为技术有限公司 | A VoIP phone terminal and online failure detection device and method |
| CN101876901B (en) * | 2009-12-02 | 2013-04-10 | 烽火通信科技股份有限公司 | Method for realizing single disk block state of webmaster by using extensible markup language (XML) |
| CN101938377B (en) | 2010-09-14 | 2012-06-27 | 华为数字技术有限公司 | link aggregation error protection method, equipment and system |
| CN106130840B (en) * | 2016-07-15 | 2019-04-30 | 武汉邮电科学研究院 | A kind of fixation, mobile broadband fusion access planar network architecture |
| CN107528750A (en) * | 2017-09-18 | 2017-12-29 | 北京长城华冠汽车科技股份有限公司 | A kind of method of testing and device of straight-forward network management |
| CN107948105B (en) * | 2018-01-02 | 2020-08-25 | 联想(北京)有限公司 | Method and system for controlling port state of equipment |
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| USH2059H1 (en) * | 2000-09-29 | 2003-02-04 | Opuswave Networks, Inc. | System and method for managing terminal units in a wireless system |
| CN1177435C (en) * | 2001-08-24 | 2004-11-24 | 华为技术有限公司 | Hierarchical management system for distributed network management platform |
| CN101202662A (en) * | 2003-04-30 | 2008-06-18 | 华为技术有限公司 | System and method for satisfying magnanimity terminal equipment network management requirement |
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