CN100568818C - A kind of method that reduces complexity of access network configuration - Google Patents
A kind of method that reduces complexity of access network configuration Download PDFInfo
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- CN100568818C CN100568818C CNB2006101496673A CN200610149667A CN100568818C CN 100568818 C CN100568818 C CN 100568818C CN B2006101496673 A CNB2006101496673 A CN B2006101496673A CN 200610149667 A CN200610149667 A CN 200610149667A CN 100568818 C CN100568818 C CN 100568818C
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Abstract
The invention discloses a kind of method that reduces complexity of access network configuration, comprise, use E1 Sa7 signal and link verifying function, finish the E1 correctness that patches physically and discern; Adopt the self adaptation allocation strategy of far-end access node and communication port,, finish the logic configuration of network by convergent access node according to the actual physical annexation; Convergent access node generates the topology information of network according to the adaptive configuration result then, and the notice webmaster carries out data synchronization updating.The present invention sets up the topological relation between communication node automatically between remote subscriber access device and cut-in convergent equipment, a kind of network management system simply and easily is provided, allowing equipment finish automatically need be freed the people between the dazed and confused node of complexity by the work of manually finishing in the past the link corresponding relation; Guaranteed the consistency of corresponding relation between the node simultaneously; And the process of setting up of the topological configuration data of whole network obtains accelerating, and improved engineering opening speed.
Description
Technical field
The invention discloses a kind of raising Access Network (pass) data configuration convenience and maintainable method, specifically, is the fast automatic collocation method of data of a kind of Access Network (pass) intercommunication node and topological relation.
Background technology
Wired access network (pass) open or maintenance process in, need between access node, couple together with cable (generally being the E1 link), set up communication channel and speech path passage.At present, after having set up physical connection, need set up each other annexation at Operation and Maintenance platform (perhaps network management system), and carry out node identification for each node and distribute.Because Access Network (pass) interstitial content is numerous, two internodal link numbers also may be a lot, and data configuration bothers very much, and efficient is opened in influence, and is very easy to make mistakes; Particularly for the problem that occurs through regular meeting in some opening processes; make mistakes such as E1 link corresponding relation; even going out between two E1 to all happening occasionally with going into to connecing poor situation; and thisly connect poor situation; present means can't be found; can only perhaps in the opening process afterwards, find these engineering problems gradually by constantly carrying out the business test.Therefore, it is low that this situation is not only opened efficient, and later customer service provided buried hidden danger.
Summary of the invention
In order to overcome problems of the prior art, the present invention proposes a kind of method, can between remote subscriber access device and cut-in convergent equipment convergent access node, set up the annexation between communication node automatically, make the plant maintenance installation personnel only internodal E1 link physical need be coupled together, logical data can generate automatically, accomplish the plug and play of Access Network (pass) equipment, and, physical connection for the mistake that causes owing to artificial carelessness can detect, and in time by the network management system report and alarm.
Specific implementation step of the present invention is:
The self adaptation allocation strategy of step 2, employing distant-end node and communication port according to the actual physical annexation, is finished the logic configuration of network by aggregation node;
Step 3, aggregation node generate the topology information of network according to the adaptive configuration result, and the notice webmaster carries out data synchronization updating.
As mentioned above, the present invention has set up the automatic configuration and the detection system of access node and annexation, and a kind of method that webmaster carries out topological relation configuration and management of being convenient to also is provided.
Previous System owing to be with various distant-end nodes under the cut-in convergent node, comprises traditional far-end access node and novel comprehensive access node, and for traditional access node, its plate configuration information can report aggregation node, is managed by aggregation node; And for those integrated service access nodes that provides network management interface to be managed by NM server as a network element separately, original mode is separately it to be carried out a data simultaneous operation by network management system, obtains the information such as veneer on it.
Among the present invention, to NM server as long as on the convergent access node of master control, carry out the operation of data sync, then under this convergent access node with all nodal informations can both get access to the further like this system maintainability that improved.
Its process is as follows: on NM server, only need dispose accordingly convergent access node, and such as element name, the IP address, configuration allows sign etc. automatically; Disposed network element dispose automatically allow sign after, network element is through the short period, promptly can generate internodal connection data automatically, only need afterwards to send the data sync order to this controlled network element, after network element is received this order, with just the node of acquisition and the configuration information of link send to NM server automatically.Nodal information comprises node number, node type, nodal community and information (such as single board information, IP address etc.).After NM server is received all nodal informations, just setting up one is the stelliform connection topology configuration at center with the convergent access node, according to each nodal information, create the box type of node correspondence, the backstage disposes its nodal community (comprising node number, node type, IP address etc.), shows that afterwards a Zhang Tuo pounces on graph of a relation.
For traditional far-end access node, information such as its veneer configuration still report NM server by convergent access node.For the comprehensive access node of far-end, then according to the nodal information that reports in the convergent access node, obtain its IP address by NM server, carry out data sync according to this IP address again, with the information such as veneer of this node of being synchronized to.The simultaneous operation of the comprehensive access node of each far-end is carried out after can finishing in the simultaneous operation of convergent access node and traditional far-end access node, and can adopt asynchronous system, does not influence the service speed of webmaster.
As mentioned above, the method of the invention, can between remote subscriber access device and cut-in convergent equipment, set up the topological relation between communication node automatically, a kind of network management system simply and easily is provided simultaneously, only need carry out a simple configuration (node type, IP address, whether automatically configuration) to convergent access node, carry out the automatic simultaneous operation of data again, just can obtain whole is that each node and the mutual E1 link of Access Network (pass) network at center connects data with the aggregation node, and the plate configuration information of each node etc.More than this process, in essence, allow equipment need the people be freed the link corresponding relation between the dazed and confused node of complexity by the work of manually finishing before having finished automatically exactly; Guaranteed the consistency of corresponding relation between the node simultaneously; Last because above process can parallel processing for each node, and the topological configuration data of whole network (being node and the link configuration) process of foundation will obtain accelerating (is the time frame of unit with the second), improve engineering opening speed.
Description of drawings
Fig. 1 is that the far-end access node disposes in the identifying automatically, and message and signal between this node and the convergent access node are mutual;
Flow processing figure before Fig. 2 is the far-end access node from start-up course to beginning link configuration and verification;
Fig. 3 a-3b is the far-end access node link flow processing figure of configuration automatically, and wherein Fig. 3 a is the automatic layoutprocedure figure of communication link, and Fig. 3 b is the automatic layoutprocedure figure of common link;
Fig. 4 is the flow processing figure of the automatic verification of far-end access node link;
Fig. 5 a-5b is a convergent access node to the pretreatment process figure of the message of the request link configuration of distant-end node and verification; Wherein Fig. 5 a is a process chart of receiving the handshake information of distant-end node; Fig. 5 b is a sa7pulse Signal Processing flow chart of receiving the far-end access node;
Fig. 6 is that aggregation node is to the node of distant-end node and the flow chart of the automatic configuration of link data;
Fig. 7 is that aggregation node is to the node of distant-end node and the flow chart of the automatic verification of link data;
Fig. 8 is the networking diagram of a kind of application scenarios of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the method for the invention is described in more detail.
As shown in Figure 1, the far-end access node sent E_SHAKEHAND message and convergent access node and shakes hands in (as starting or regularly) sometime, through the specific times failure of shaking hands; Show that this link in the not configuration as yet of this node, begins to enter automatic configuration flow.At first communication link is configured, sends the sa7pulse signal,, then receive this signal search immediately and continue a communication channel and loopback sa7pulse signal if aggregation node allows automatic link data configuration.Afterwards, access node sends E_LinkIdentification message by communication channel, and whether this link is attributes such as communication link at the numbering (sequence number) of far-end access node and this link on the message content band.Form is as follows:
| E_LinkIdentification | Node | NodeType | E1no | commflag | NodeInfo |
Wherein E_LinkIdentification is a message number, Node is the node number of far-end access node, NodeType is node type (because cut-in convergent equipment may insert polytype far-end access node), E1no is the sequence number of this link on the far-end access node, and commflag represents that this link is communication link, or common bearing link.NodeInfo, be the adeditive attribute of far-end access node, the far-end access node such as for comprehensive access has IP address and port numbers, can give convergent access node by this information reporting, so that webmaster carries out data management and synchronous by the convergent access node unification.
After aggregation node was received this message, decision node 0xff distributed an idle node immediately, and loopback E_LinkIdentificationAck message, the numbering of band uplink on aggregation node, the information such as node number of distribution.Message format is as follows:
| ?E_LinkIdentificationAck | Node | LocalE1no | RemoteE1no | commflag |
Wherein E_LinkIdentificationAck is a message number, Node is the node number that convergent access node is distributed for the far-end access node, LocalE1no is the sequence number of this link on convergent access node, RemoteE1no is the E1 sequence number on the far-end access node, commflag is the link communication symbol, and wherein the E1no of the E_LinkIdentification message sent of RemoteE1no and commflag and far-end access node is the same with the commflag field.
After the far-end access node is received this information, preserve node number.Proceed the automatic configuration of next link, after the normal link of all states all disposes end, the far-end access node sends E_LinkIdentificationEnd message, with the configuration information of going up all firm foundation, aggregation node is received this message, after reaffirming that configuration is correct, loopback E LinkIdentificationOK, layoutprocedure completes successfully automatically.The form of these two message is as follows respectively:
| E_LinkIdentificationEnd | Node | E1Num | Link1Info | ... | ?Linkn?Info |
E1Num total number that to be convergent access node be connected with the total E1 of far-end access node wherein.Link info is the information of each bar E1 link, and it thes contents are as follows:
| OnuE1No | OltE1No | commflag |
| E_LinkIdentificationOk | Node |
Wherein, Node is a far-end access node node number
In the said process, there is one to enter the link preprocessing process of configuration automatically, promptly how starts the process of link configuration and verification.Its process is the preprocessing process of far-end access node as shown in Figure 2.At first, judge whether communication link work is normal, if undesired then delay time a period of time, till the communication link operating state would be normal.Send handshake information by communication channel afterwards, timer is set, if do not receive the ACK message that aggregation node is sent in official hour, show that this node does not have configuration data as yet, next step need carry out automatic configuration flow and handle; If before timing is overtime, receive Ack message, the message content of E_SHAKEHANDACK is except the content that comprises E_LinkIdentificationEnd message, more than a field that whether needs the link verification, distant-end node parses node and link configuration information, next step carries out the automatic checking process of link and handles according to this information.
Be illustrated in figure 3 as the above-mentioned link process chart of configuration automatically.Be depicted as the automatic layoutprocedure of communication link as Fig. 3 a, at first distant-end node sends the sa7pulse signal on communication link, wait for the response signal that aggregation node is beamed back on this link, in case this link is received the sa7pulse back-signalling, send E_LinkIdentification message by communication channel, message format such as precedingly be described, node number is filled out 0xff; Wait for that the other side responds ack message, after aggregation node is received E_LinkIdentification message, according to configuring condition (whether allowing automatic configuration node link data sign), node distributes the node of a free time for this reason, simultaneously with link number in the message and local foundation mapping, loopback E_LinkIdentificationAck message is filled out node number and link information in the message afterwards.After the far-end access node is received this echo message, record node number and link information.So far the automatic configuration successful of communication link is finished.Then begin the automatic layoutprocedure of other link, what Fig. 3 b showed is the automatic layoutprocedure of common link, on common link, send the sa7pulse signal, timer is set to be waited for, if receive the sa7pulse signal response, then at first be this link assignment and the communication channel that continues, send E_LinkIdentification message afterwards, node number in the message content is filled out the node number that has just write down, by the time after receiving the Ack message of aggregation node, the comparison node number, if correct, the mapping relations of minute book link then.Discharge communication channel at last.The automatic configuration of common link so far completes successfully.It should be noted, if above wait for that the timer expiry of the other side's response surpasses stipulated number, show that this link has problem, configuration failure, report and alarm begins the configuration of next bar link.All links are repeated above process.
Figure 4 shows that the automatic checking treatment flow chart of link among Fig. 2.Receive E_SHAKEHANDACK message in Fig. 2, parse node, link configuration information and check field whether, if judge and do not need verification, checking procedure finishes.Otherwise, beginning the link in the configuration information is carried out verification, checking procedure and automatic layoutprocedure are similar, do not repeat them here.
Introduced the handling process of far-end access node above, the handling process of aggregation node does not elaborate as yet.Fig. 5 is the pretreatment process of aggregation node before link verification and layoutprocedure.Fig. 5 a is a handshake information of receiving that distant-end node is sent, responds response message, and message format is as follows:
| E_SHAKEHANDACK | Node | verifyflag | E1Num | Link1?Info | ... | ?Linkn Info |
Wherein verifyflag is a check mark, is filled as required by aggregation node, and other field is the same with the implication of E_LinkIdentificationEnd content.
Fig. 5 b is the handling process of receiving behind certain link sa7pulse, obviously, if be configured, enters automatic checking process; Otherwise, enter automatic configuration flow.
Fig. 6 is the handling process of aggregation node to the automatic layoutprocedure of link.If receive the sa7pulse signal, at first judge whether to allow the node link data to dispose (by the Operation and Maintenance personnel selection) automatically, if do not allow, then abandon this signal, do not do any processing.Otherwise, judge at first whether this link has disposed the node connection, if not configuration then for this link assignment and the communication channel of the free time of continuing, is responded the sa7pulse signal simultaneously, wait for receiving E_LinkIdentification message.After receiving E_LinkIdentification message,,, set up the link maps relation simultaneously then for distant-end node distributes an idle node if judge that the node number in the message is 0xff.Send E_LinkIdentificationAck message to distant-end node at last, message content is filled out fields such as node number and link number.Judge at last whether this link is communication link,, discharge the communication channel resource of distributing just now if not communication link.Otherwise, keep communication channel, and for it corresponding service processor be installed according to the node type among the E_LinkIdentification.
What must propose is, have a kind of like this possibility, in fact this link has been configured between node and has connected, and is after the E_LinkIdentification message of 0xff if at this moment receive node number, the node number that filling has been configured in receiveing the response just, and need not in distribution node number.Other describes identical above processing fundamental sum.
Fig. 7 is automatic checking treatment flow chart, after receiving the sa7pulse signal, according to the automatic verification permission sign of configuration, selects whether will respond sa7pulse, if do not allow, does not then do any processing.Otherwise, at first judge this link, if common link, communication channel then continues; Respond the sa7pulse signal afterwards, wait for receiving E_LinkIdentification message.After receiving this message, message content is compared, whether see and local configurations match, if do not match, report and alarm then.At last, if common link also will discharge the communication channel resource.
Fig. 8 is the application scenarios networking structure figure of whole system, after configuration is finished automatically, whether operating personnel allow automatic node to connect configuration to network element configuration on webmaster, and to network element data simultaneous operation, the distant-end node of one by one aggregation node being with down with network management interface (IP address) carries out data sync one time again, can be reflected on the NM server the whole system data like this, maintain easily personnel operation.
As above process is described, Access Network (pass) node and each other link annexation data configuration can be automatically, finish fast, effectively reduce the configuration complexities of Access Network (pass).
Claims (6)
1, a kind of method that reduces complexity of access network configuration is characterized in that, comprises the steps:
Step 1, use E1Sa7 signal and link verifying function are finished the E1 correctness that patches physically and are discerned;
Step 2, adopt the self adaptation allocation strategy of far-end access node and communication port,, finish the logic configuration of network, specifically comprise step (21)-(210) by convergent access node according to the actual physical annexation:
Step (21) judges whether communication link work is normal, if undesired then delay time a period of time, normal up to the communication link operating state;
Step (22) sends E_SHAKEHAND message by communication channel and convergent access node is shaken hands, timer is set, do not receive the E_SHAKEHANDACK message that convergent access node is sent if surpass the predetermined timing time, and overtime number of times surpasses the number of times that limits, convergent access node configuration data not as yet then, execution in step (23);
Step (23) far-end access node begins to enter automatic configuration flow, and communication link is configured, and sends the sa7pulse signal, allow to carry out the convergent access node of automatic link data configuration, after receiving signal, the communication channel of searching immediately and continue, and loopback sa7pulse signal;
After step (24) far-end access node is received the sa7pulse signal of loopback, send E_LinkIdentification message, fill access node Oxff, report convergent access node by communication channel;
After step (25) convergent access node was received E_LinkIdentification message, decision node Oxff distributed an idle node immediately, and loopback E_LinkIdentificationAck message;
After step (26) far-end access node is received E_LinkIdentificationAck message, preserve the internodal mapping relations of node number and link;
Step (27) repeating step (23)-(26), all dispose end up to the normal link of all states, the far-end access node sends E_LinkIdentificationEnd message, with going up all configuration informations of setting up, convergent access node is received this message, after reaffirming that configuration is correct, loopback E_LinkIdentificationOK, the automatic layoutprocedure of communication link completes successfully;
Step (28) is sent the sa7pulse signal on common link, timer is set waits for the convergent access node back-signalling;
Step (29) far-end access node is received the sa7pulse signal response of convergent access node, then be this link assignment and the communication channel that continues, send E_LinkIdentification message by this passage, fill in the node number that has write down in the node number in message content, await a response;
After step (210) far-end access node is received the E_LinkIdentificationAck message of convergent access node, the comparison node number, the internodal mapping relations of minute book link discharge communication channel at last, and the automatic configuration of common link is finished;
Step 3, convergent access node generate the topology information of network according to the adaptive configuration result, and the informing network management server carries out data synchronization updating.
2, the method for reduction complexity of access network configuration as claimed in claim 1 is characterized in that:
In the described step (24),
The content of described E_LinkIdentification message comprises,
Message number, the node number of far-end access node, node type, the sequence number of link on the far-end access node, link communication symbol, the adeditive attribute of far-end access node;
If described far-end access node is comprehensive access far-end access node, then the adeditive attribute of far-end access node is IP address and port numbers at this moment.
3, the method for reduction complexity of access network configuration as claimed in claim 1 is characterized in that:
In the described step (25),
Described E_LinkIdentificationAck message comprises,
Message number, the node number that convergent access node is distributed for the far-end access node, the sequence number of link on convergent access node, the E1 sequence number on the far-end access node, link communication symbol.
4, the method for reduction complexity of access network configuration as claimed in claim 1 is characterized in that:
If the timer of described wait the other side response is overtime, and the timer expiry number of times surpasses the number of times of regulation, shows that then this link has problem, configuration failure, and report and alarm begins the configuration of next bar link.
5, the method for reduction complexity of access network configuration as claimed in claim 1, it is characterized in that, in the described step (22), if receive E_SHAKEHANDACK message in the time in predetermined timing, the message content of E_SHAKEHANDACK comprises the content of E_LinkIdentificationEnd message and whether needs the field of link verification, the far-end access node parses node and link configuration information, according to this information, carries out the automatic checking process of link and handles.
6, the method for reduction complexity of access network configuration as claimed in claim 5 is characterized in that, the automatic checking process of described link, and concrete steps are as follows:
(1) after convergent access node is received the sa7pulse signal, according to the automatic verification permission sign of configuration, select whether will respond the sa7pulse signal,
If do not allow, then do not do any processing, finish;
If allow, judge then whether this link is common link, if not common link, does not then do any processing, finish;
If common link, the communication channel that then continues is responded the sa7pulse signal, waits for receiving E_LinkIdentification message;
(2) after convergent access node is received E_LinkIdentification message, message content is compared, whether see and local configurations match, if do not match, then report and alarm if mate, then sends E_LinkIdentificationACK message, and be with link-local information, the communication channel resource is discharged.
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