CN100454835C - Optical network unit remote management method in Ethernet passive optical network system - Google Patents
Optical network unit remote management method in Ethernet passive optical network system Download PDFInfo
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- CN100454835C CN100454835C CNB2005100986685A CN200510098668A CN100454835C CN 100454835 C CN100454835 C CN 100454835C CN B2005100986685 A CNB2005100986685 A CN B2005100986685A CN 200510098668 A CN200510098668 A CN 200510098668A CN 100454835 C CN100454835 C CN 100454835C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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Abstract
This invention discloses one light network unit remote management method of Ethernet light network without source, which manages light network units through current standard operation frame extension and adopts standard management information object and receives simple management agreement pack at light path end side and analyzes all management subjects, wherein, if certain subject is managed by certain network unit and sealing it to the management frame to send to relative light network unit; then operating light network unit then to light circuit terminal.
Description
Technical field
The invention provides a kind of method for remote management, relate in particular to the method for remote management of the ONU in EPON (Ethernet passive optical network) system of the communications field ONU (optical network unit).
Background technology
In ADSL (ADSL (Asymmetric Digital Subscriber Line)), management for terminal MODEM (modulator-demodulator), common implementation method is, directly manage by local serial ports, perhaps an IP address is set, logins by WEB (network) mode or TELNET (Telnet) mode then and manage to MODEM.
For the management of ONU in the EPON system, the measure that a lot of business mens are taked is the same with the management to MODEM in ADSL, adopts CLI (command line interface) mode, realizes ONU is managed by serial ports or TELNET at present; Perhaps come ONU is managed by WEB or SNMP (Simple Network Management Protocol).One of them way to manage of the support that has in the business men, what have then supports all way to manages.
For the TELNET mode, WEB mode and SNMP mode are no matter realize a kind of or multiple, each ONU must distribute an IP address could realize management to ONU, have under the OLT (optical line terminal) a plurality of ONU (1: 16,1: 32,1: 64,1: 128 etc.).
Because simple, easy-to-use, advantage fast that snmp protocol has, and be a kind of general-purpose industrial standard, can adopt the equipment of the webmaster management different manufacturers of supporting the SNMP standard, realize united net management, therefore increasing business men is supported the SNMP mode.
PON (EPON) technology is the optical fiber access technology of a kind of point to multiple spot, and it is made up of the OLT of office's side, the ONU and the ODN (Optical Distribution Network) of user side.General its descending employing TDM (time division multiplexing) broadcast mode, up employing TDMA (time division multiple access access) mode, and can form topological structures (typical structure is a tree structure) such as tree type, star-like, bus-type neatly.
Because EPON equipment has merged the advantage of PON and Ethernet, system configuration is more simplified, and standard is loose, and cost is lower, so EPON equipment will be employed more and more.
So just relate to management to the EPON system, because the EPON system is a kind of novel service application model, form a relatively independent EPON system by an OLT and a plurality of ONU, the management of EPON system hereto, both it can be treated (OLT and all ONU) as a management system, also it can be handled as a plurality of independently management systems, wherein OLT is one and manages system independently, and other ONU is respectively single independently management system.
In EPON system management standard, do not have definition how to manage ONU under the OLT, only defined obtaining of some variate-values, can not finish management, the management of ONU is realized by each business men ONU.If the realization united net management, adopting SNMP will be a kind of selection of wisdom.
Yet, because the characteristics of EPON system, to be with a plurality of ONU under the OLT, if still adopt common SNMP way, each ONU realizes an AGENT (OAMAgent), no matter directly webmaster management information is sent to ONU, will take a large amount of IP addresses like this, still be all to be a kind of huge wastes the IP address of private network concerning public network.
For example, according to traditional SNMP way, each ONU realizes the SNMPAGENT of a standard, and then each ONU need distribute an IP address, and management data directly sends to ONU from webmaster.Like this, if there be N OLT on the equipment at OLT place, M ONU arranged under each OLT, then using conventional methods the IP address that needs should need 1 (the IP address of management OLT place equipment)+N * M (the IP address of management ONU equipment) individual.
In addition, a little less than the management support very of current standard to ONU, only defined the response of some variable requests and variable, promptly can only obtain the value of part MIB (management information bank) variable, only support the read operation of SNMP to the represented management information of managed object, can not support other operations, can not be managed for configuration it.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method for remote management to the terminal equipment ONU in the EPON system, and the SNMP by standard carries out unified management to network.
The invention provides the method for remote management of optical network unit in a kind of Ethernet passive optical network system, comprise the steps:
Network management unit sends the Simple Network Management Protocol request package to optical line terminal equipment, includes the optical network unit numbering of management information and the desire management of this management information institute in this request package;
The described agreement request bag that to be received by a snmp agent on the optical line terminal side apparatus resolves to a plurality of management information bank objects, and determines the management information bank object to its long-range optical network unit operation that has under its command therein;
The optical network unit numbering that optical line terminal carries according to the agreement request bag, check whether its this optical network unit that has under its command supports telemanagement, if support, then management information bank object and attributes encapsulation thereof are gone in the oam frame, be sent to this optical network unit;
This optical network unit is resolved this oam frame that receives, and therefrom extracts the management information bank object, and determines to support the described management information bank object that extracts;
Optical network unit is realized the operation to described management information bank object in this locality, and managing response frame of the optical line terminal loopback under it, wherein carries the result that practical operation is returned;
The result that described optical line terminal returns described practical operation puts into the loopback of Simple Network Management Protocol respond packet and gives network management unit.
Described method for remote management can further include following steps:
In the optical line terminal side, send to the optical network unit that it has under its command by oam frame of optical line terminal assembling, require this optical network unit to confirm whether to support telemanagement;
Whether this optical network unit supports telemanagement according to self, to response frame of optical line terminal loopback, carries the affirmation information of whether supporting;
Optical line terminal is resolved this response frame that receives, and confirms and writes down this optical network unit and whether support telemanagement.
Described method for remote management can further include following steps:
Self take place when unusual when optical network unit detects, this this abnormal information is encapsulated in the oam frame, is sent to the optical line terminal under it;
Described optical line terminal is converted into simple network management protocol trap with the information in the oam frame that receives and wraps and offer network management unit.
The present invention has realized OLT and its all ONU that are with have down been carried out unified management, has saved a large amount of IP address resources; Owing to adopt snmp protocol to manage in the OLT side, ONU can respond the management request of OLT side by simple AGENT, support the mib object management of any standard, SNMP and mib object are standard, be convenient to realize the unified management of the equipment between the different business mens, after business realizing interconnected, webmaster also might be realized unified management, and was easy to realize the expansion to what's new.
Description of drawings
Fig. 1 is according to the described whole management frame system figure of embodiments of the invention;
Fig. 2 realizes according to embodiments of the invention whether ONU telemanagement definite ONU on the OLT side apparatus supports ONU telemanagement flow chart;
Fig. 3 realizes that according to embodiments of the invention the ONU telemanagement realizes the mib object operational flowchart of far-end ONU on the OLT side apparatus;
Fig. 4 realizes that according to embodiments of the invention the ONU telemanagement realizes the abnormality processing flow chart that far-end ONU reports on the OLT side apparatus;
Fig. 5 realizes that according to embodiments of the invention the ONU telemanagement responds OLT and confirms whether ONU itself supports ONU telemanagement flow chart on the ONU side apparatus;
Fig. 6 realizes that according to embodiments of the invention the ONU telemanagement realizes the mib object process chart on the ONU side apparatus;
Fig. 7 realizes that according to embodiments of the invention the ONU telemanagement realizes that on the ONU side apparatus this locality reports process chart unusually;
Fig. 8 is the specific OAMPDU frame structure schematic diagram in the existing standard;
Fig. 9 adopts data field format schematic diagram in the OAMPDU frame structure specific under the Branch/Leaf mode;
Figure 10 adopts data field format schematic diagram in the OAMPDU frame structure specific under the MIB mode.
Embodiment
The present invention adopts and to manage ONU based on the OAM frame of snmp protocol and EPON standard, by expanding the ONU equipment of managing to the expansion of existing standard OAM or to Organization Specific OAMPDU (assembly operation maintenance management protocol Data Unit), Organization SpecificInformation TLV (assembly type of message length value) and the Organization Specific Event TLV (assembly event type length value) of OAM.The present invention adopts the MIB management object of standard, on the equipment of OLT side, realize SNMP AGENT, when AGENT receives the SNMP bag, parse all mib objects, if certain mib object manages certain ONU, then this mib object is encapsulated in the OAM frame, sends to corresponding ONU; In the ONU side, handle by the simple AGENT of ONU side, if receive the OAM frame that mib object is handled, resolve its mib object at once, operate ONU then, then the OAM frame of back response is given OLT.
Because the present invention is that the management information that webmaster is all at first sends to OLT, and then is forwarded to ONU by OLT by OAM.Like this, only need an IP address to get final product.All existing in the operating data of all management information specifically is that ONU under that OLT, and it can be known according to the data that issue of webmaster.
Such as (the perhaps network element of the equipment among the present invention, do not comprise ONU, ONU is as another separate equipment) on have the ply-yarn drill of polylith OLT, a plurality of OLT are arranged on the every ply-yarn drill, " extension " a plurality of ONU under each OLT, suppose to have 5 OLT ply-yarn drills, have 4 OLT on the every ply-yarn drill, 32 ONU are arranged under each OLT.The OLT numbering is from 1-20, the numbering 1/1-1/32 of ONU, 2/1-2/32, ..., 20/1-20/32, for the IP address, equipment and only need one (otherwise using conventional method will need 1+5 * 4 * 32=641 IP address) together with following ONU, when managing, such as managing to the ONU under the OLT 10 20, then webmaster will need information of managing and be issued to equipment together with the numbering of OLT and ONU, promptly need certain ONU that indicates under that OLT to operate.After equipment receives this information, be the form of appointment with this information translation, encapsulation is advanced in the OAM frame, sends the OAM frame to this ONU then.That is to say webmaster and OLT equipment need indicate the ONU which OLT of current operation under when transmitting management information, OLT equipment then can and then remove OLT and ONU information, directly and ONU transmission management information.
As follows in the SNMP of the OLT side AGENT course of work:
When certain ONU succeeds in registration, send one " the OAM frame of inquiry ", require this ONU to confirm whether support telemanagement, be referred to as " ONU remote management and control OAM frame ";
AGENT resolves the snmp protocol bag that receives, and is decomposed into independent one by one mib object;
If certain mib object is the bookkeeping to certain ONU, check at first then whether this ONU supports the ONU telemanagement, if do not support, then in the SNMP response packet, return one and do not support ONU telemanagement sign indicating number to give webmaster; If support then the attributes encapsulation of mib object advanced the OAM frame, send this OAM frame, be referred to as " ONU telemanagement data OAM frame "; Its attribute can be the OID (object identity definition) of mib object, perhaps other unique sign, as respective leaves child node in the tree in the EPON standard etc., or action type, as the management information value that directly reads managed object, the value that reads the management information of next managed object, management information to managed object is carried out write operation, or the value of mib object with and length or the like;
Wait for the response of ONU, if response timeout then returns a wait " ONU telemanagement data OAM frame " response timeout sign indicating number and gives webmaster in the SNMP response packet to " ONU telemanagement data OAM frame "; Otherwise the actual information (success or failure etc.) of ONU response is put into the SNMP response packet;
The AGENT loopback SNMP of OLT side replys to webmaster.
The SNMP AGENT of OLT side also can handle " the ONU telemanagement TRAP OAM frame " that ONU initiatively sends, the SNMP TRAP that is translated into standard wraps and offers webmaster, send a response OAM frame then to this ONU, be referred to as " ONU telemanagement TRAP response OAM frame ".
The ONU side does not need treatment S NMP agreement, only mib object is handled, responded " the ONU remote management and control OAM frame " and " ONU telemanagement data OAM frame " of OLT side transmission and can initiatively send one " ONU telemanagement TRAP OAM frame " by a simple AGENT.
" the ONU remote management and control OAM frame " that the OLT that ONU side AGENT processing receives sends, the current ONU telemanagement OAM frame of whether supporting of loopback is referred to as " ONU remote management and control response OAM frame ".
" the ONU telemanagement data OAM frame " that the OLT that ONU side AGENT processing receives sends, this frame is resolved, finish concrete operations according to mib object, its operating result is encapsulated in the OAM frame loopback gives OLT, be referred to as " ONU telemanagement data response OAM frame " ONU.
If ONU is local to be taken place unusually, as alarm etc., ONU side AGENT is encapsulated into its relevant information in the OAM frame, sends to OLT at once, is referred to as " ONU telemanagement TRAP OAM frame ".
As shown in Figure 1, for managing the frame system figure of whole EPON system.Administrative messag (as the SNMP request package) can be initiated (step 101) from webmaster or SNMP MANAGER (keeper), after OLT receives, handles through analytical analysis, the OLT local operation is directly responded, as direct loopback SNMP response bag (step 102); Perhaps, administrative messag (as the SNMP request package) can be initiated (step 101) from webmaster or SNMP MANAGER (keeper), encapsulating this message into, the OAM frame sends to ONU (step 103), the simple AGENT of ONU side gives OLT (step 104) by the loopback of OAM frame after receiving and handling again, OLT side AGENT responds the webmaster operation, loopback SNMP response bag (step 105) after the analyzing and processing again; Administrative messag also can be initiated at the OLT place, sends remote control management frame (step 106) to ONU, and whether inquiry ONU supports telemanagement, and ONU can support then to respond OLT, loopback OAM frame (step 107); Particular message also can be initiated at the ONU place, and such as unexpected message etc., ONU sends the OAM frame (step 108) of unexpected message to the OLT side, after the OLT analyzing and processing this message is sent to webmaster, for example can issue webmaster (step 109) by SNMP TRAP mode.
Flow chart as shown in Figure 2 is used for OLT and confirms whether to support the telemanagement of ONU to ONU, can be initiated by OLT in any moment when OLT and ONU all normally move, and recommends to be chosen in the ONU back of succeeding in registration and sends to ONU.
At first,, be used to inquire about certain ONU and whether support the ONU telemanagement, send " ONU remote management and control OAM frame " (step 202) to this ONU then at OAM frame of OLT place assembling; A timer and a counter are set, wait for the response of ONU,, send " ONU remote management and control OAM frame ", (step 203) once more if also do not receive the response OAM frame of ONU behind the timer expiry; Judge whether in the maximum count scope, to receive the OAM response frame (step 204) of ONU; If reach the response frame that certain number of times does not also receive ONU, determine that then this ONU does not support the ONU telemanagement, preserves this ONU and does not support ONU telemanagement (step 208); Otherwise resolve " ONU remote management and control response OAM frame " (step 205) received, judge that this ONU supports telemanagement (step 206); If support, then preserve this ONU and support ONU telemanagement (step 207); Confirm that this ONU does not support telemanagement if resolve the back, then preserve this ONU and do not support ONU telemanagement (step 208).
As shown in Figure 3, for handling the SNMP solicit operation flow chart that MANAGER issues.
Issue SNMP request back (step 301) at MANAGER, at first resolve the SNMP request (step 302) that MANAGER issues at the AGENT of OLT side, be decomposed into one by one independently mib object, successively each mib object is analyzed (step 303) again, judge that whether each mib object is the operation (step 304) to far-end ONU, if not then just handling (step 310) in this locality, whether support telemanagement (step 305) if reexamine this ONU, do not support the telemanagement sign indicating number if do not support then return to ONU of MANAGER; If support then the attributes encapsulation of mib object advanced in the OAM frame (can encapsulate one or more mib object simultaneously) (step 306), issue " ONU telemanagement data OAM frame " (step 307) that comprise this OAM frame information then, start a timer (step 308), if timer expiry is not also received the response of ONU, then return to MANAGER ONU response timeout sign indicating number (step 312), otherwise handle the response frame of ONU, response message is returned to MANAGER (step 313).
As shown in Figure 4, for handling the unusual reporting information flow chart of ONU.
When the OAM frame that receives the abnormal information that ONU reports, promptly after " ONU telemanagement TRAPOAM frame " (step 401), information in the OAM frame is converted into the information that SNMP TRAP message needs, and the SNMP TRAP message of a standard of assembling sends to MANAGER (step 402).
As shown in Figure 5, confirm for ONU response OLT whether ONU supports the responding process figure of telemanagement.
Whenever, as long as ONU receives " ONU remote management and control OAM frame " (step 501), whether affirmation itself supports telemanagement (step 502), if support, then assembles ONU and supports ONU telemanagement OAM frame (step 503); If do not support, then form ONU and do not support ONU telemanagement OAM frame (step 504), then actual result is returned to OLT (step 505) by " ONU remote management and control response OAM frame ".
As shown in Figure 6, be of the processing of ONU side to the mib object in the OAM frame.
Receive " the ONU telemanagement data OAM frame " back (step 601) that OLT sends, resolve this OAM frame, extract all mib objects (step 602), handle successively then, judge at first whether ONU supports these mib objects (step 603), if do not support direct loopback " ONU telemanagement data response OAM frame " to give OLT, carry this mib object information (step 605) of not supporting; If support then realize operation (step 604) to mib object in this locality, OLT, the result's (step 606) who returns when carrying practical operation are given in loopback then " ONU telemanagement data response OAM frame ".
Processing when as shown in Figure 7, the local generation of ONU is unusual.
If ONU itself detects unusual (step 701) taking place, then will this unusual relevant information encapsulate in the OAM frame (step 702), send " ONU telemanagement TRAP OAM frame " (step 703) to OLT, reports the abnormal conditions of the local appearance of ONU.
Expansion and packaged type to the OAM frame described in the present invention can further specify with reference to figure 8,9,10.
As shown in Figure 8,,, can will encapsulate in the Data field according to certain form the management information of ONU according to the present invention for the OAMPDU frame format of the particular organization that defines in the existing standard, for example, the form that adopts among image pattern 9 or Figure 10.
As shown in Figure 9, adopt a kind of mode of ONU telemanagement for example, the form in the DATA data field.
Wherein:
1OUI is supplier's unique identification, 3 bytes;
2Code is a command code, and 1 byte for example is used to represent that current operation is to be provided with/to obtain request;
3Type is an action type, and 1 byte for example can represent current which kind of attribute to be operated, for example to Ethernet interface or CATV mouth etc.;
4Port is a port numbering, 1 byte, for example ethernet port 1,2 etc.;
5Variable Container is the variable that carries in the OAM frame, a branch/leaf and a mib object corresponding one by one (for non-existent by self-defined separately in the corresponded manner standard);
6width is consistent with the definition in the standard with value;
As shown in figure 10, adopt the mode of another kind of ONU telemanagement for example, the form in the DATA data field.
Wherein:
1OUI is supplier's unique identification, 3 bytes;
2Code is a command code, and 1 byte for example is used to represent that the SNMP that current webmaster sends operates, for example, and as following table;
| 0x00 | Get Request |
| 0x01 | Get Next Request |
| 0x02 | Get Response |
| 0x03 | Set Request |
| 0x04 | Trap |
| 0x05 | Get Bulk Request |
| 0x06 | Inform Request |
| 0x07 | Trap2 |
| 0x08 | Report |
| 0x09-0xff | Reserved |
3MIB Variable Container is the mib object that carries in the OAM frame, and an object is corresponding with a MIB Variable Container, and indefinite length wherein comprises OID (object identity definition) width, MIB OID, Width and Value; Wherein OID width is the length of MIB OID, and each node among the OID is represented with 2 bytes; MIB OID is the identifier (then also comprising index if not scalar) of mib object; For example certain mib object is: 1.3.6.1.4.1.3902.1012.2.3.3.1, and then OID width is that (12 * 2=24), MIB OID is 0x0001_0003_0006_0001_0004_0001_0f3e_03f4_0002_0003_0003 _ 0001 to 0x18; Width is consistent with the definition in the standard with Value.
With upper type, only be exemplary, be not to be used to limit the present invention, the version that those skilled in the art should understand other also is feasible.
Claims (10)
1, the method for remote management of optical network unit in a kind of Ethernet passive optical network system, described Ethernet passive optical network system comprises the network management unit of supporting the Simple Network Management Protocol standard, at least one optical line terminal and a plurality of optical network units that have under its command thereof, it is characterized in that described method comprises the steps:
Network management unit sends the Simple Network Management Protocol request package to the optical line terminal side apparatus, includes the optical network unit numbering of management information and the desire management of this management information institute in this request package;
The described agreement request bag that to be received by a snmp agent on the optical line terminal side apparatus resolves to a plurality of management information bank objects, and determines the management information bank object to its long-range optical network unit operation that has under its command therein;
The optical network unit numbering that optical line terminal carries according to the agreement request bag, check whether its this optical network unit that has under its command supports telemanagement, if support, then management information bank object and attributes encapsulation thereof are gone in the oam frame, be sent to this optical network unit;
This optical network unit is resolved this oam frame that receives, and therefrom extracts the management information bank object, and determines to support the described management information bank object that extracts;
Optical network unit is realized the operation to described management information bank object in this locality, and managing response frame of the optical line terminal loopback under it, wherein carries the result that practical operation is returned;
The result that described optical line terminal returns described practical operation puts into the loopback of Simple Network Management Protocol respond packet and gives network management unit.
2, the method for claim 1 is characterized in that, optical line terminal checks whether its optical network unit that has under its command supports that telemanagement specifically comprises the steps:
Send to the optical network unit that it has under its command by oam frame of optical line terminal assembling, require this optical network unit to confirm whether to support telemanagement;
Whether this optical network unit supports telemanagement according to self, to response frame of optical line terminal loopback, carries the affirmation information of whether supporting;
Optical line terminal is resolved this response frame that receives, and confirms and writes down this optical network unit and whether support telemanagement.
3, the method for claim 1 is characterized in that, also comprises:
Self take place when unusual when optical network unit detects, this abnormal information is encapsulated in the oam frame, is sent to the optical line terminal under it;
Described optical line terminal is converted into simple network management protocol trap with the information in the oam frame that receives and wraps and offer network management unit.
4, the method for claim 1, it is characterized in that, described optical line terminal is determined the management information bank object step to its long-range optical network unit operation that has under its command from a plurality of management information bank objects that parse, for not being the management information bank object that long-range optical network unit is operated, then handle in this locality by optical line terminal.
5, the method for claim 1, it is characterized in that, described optical line terminal checks whether its this optical network unit that has under its command supports the telemanagement step, if this optical network unit do not support, then return to optical network unit of network management unit and do not support the telemanagement sign indicating number.
6, the method for claim 1 is characterized in that, described optical line terminal is gone into management information bank object and attributes encapsulation thereof when being sent to this optical network unit in the oam frame, also comprises the steps:
Described optical line terminal starts a timer, if timer then, does not also receive the response of this optical network unit, then returns to an optical network unit response timeout of network management unit sign indicating number.
7, the method for claim 1, it is characterized in that, described optical line terminal is gone into step in the oam frame with management information bank object and attributes encapsulation thereof, be by expansion, perhaps assembly operation maintenance management protocol Data Unit, assembly type of message length value and assembly event type length value expanded encapsulating the oam frame of standard.
8, the method for claim 1, it is characterized in that, described optical network unit is resolved this oam frame that receives, therefrom extract the management information bank object, and the described management information bank object step that extracts of definite support, if this optical network unit is not supported the management information bank object that extracts, then directly response frame of loopback is given optical line terminal, wherein carries the information of not supporting this management information bank object.
9, method as claimed in claim 2 is characterized in that, described oam frame by a form of optical line terminal assembling sends to its optical network unit that has under its command and specifically comprises the steps:
Described optical line terminal is provided with a timer and a counter, wait for the response of this optical network unit, if also do not receive response behind the timer expiry, then send this oam frame once more, continue to require this optical network unit to confirm whether to support telemanagement, and with timer reset, counter adds 1; If counter reaches the response that pre-determined number is not also received this optical network unit, then definite this optical network unit is not supported telemanagement.
10, method as claimed in claim 3 is characterized in that, described optical line terminal with the information in the oam frame that receives be converted into simple network management protocol trap wrap offer network management unit after, also comprise:
Optical line terminal sends a response frame to this optical network unit, wherein carries the information that reports success.
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| CNB2005100986685A CN100454835C (en) | 2005-09-07 | 2005-09-07 | Optical network unit remote management method in Ethernet passive optical network system |
| PCT/CN2006/002011 WO2007028313A1 (en) | 2005-09-07 | 2006-08-09 | A remote management method of onu in epon system |
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| CNB2005100986685A CN100454835C (en) | 2005-09-07 | 2005-09-07 | Optical network unit remote management method in Ethernet passive optical network system |
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| CN101034938B (en) * | 2007-04-05 | 2010-12-08 | 中兴通讯股份有限公司 | Configuration method for remote management IP address of the ONU in the EPON network |
| CN101299642B (en) * | 2007-04-30 | 2011-07-27 | 智邦科技股份有限公司 | Optical fiber network system and management method thereof |
| CN101388725B (en) * | 2007-09-14 | 2012-05-23 | 中兴通讯股份有限公司 | Method for controlling and managing network unit/optical network terminal |
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