CN102149024B - Method, device and system for vicariously managing ONU (Optical Network Unit) by OLT (Optical Line Terminal) - Google Patents
Method, device and system for vicariously managing ONU (Optical Network Unit) by OLT (Optical Line Terminal) Download PDFInfo
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Abstract
The embodiment of the invention provides a method for vicariously managing an ONU (Optical Network Unit) by an OLT (Optical Line Terminal). The method comprises the following steps of: receiving a downlink management message from a BMS (Business Management System), wherein the downlink management message includes a target IP address and a target port number, the target IP address is a public network IP address shared by a plurality of ONUs, and the target port number is a UDP (User Data Protocol) port number assigned for the target ONU by the BMS; modifying the public network IP address carried in the downlink management message into a private network IP address corresponding to the target ONU according to a corresponding relationship between the pre-set UDP port number and the ONU private network IP address; and sending the modified downlink management message to the target ONU according to the private network IP address. The embodiment of the invention also provides a system and a device for vicariously managing the ONU. By means of the embodiment of the invention, the complexity in system implementation can be reduced and the management cost is further lowered.
Description
Technical field
The embodiment of the present invention relates to network communications technology field, relates in particular to method, the equipment and system of a kind of OLT proxy management ONU.
Background technology
FTTx (Fiber to the x, optical fiber access) under group-network construction, in access network, there is ONU (the Optical Network Unit of magnanimity, optical network unit) or ONT (Optical Network Terminal, Optical Network Terminal) equipment, for ease of describing, be below referred to as optical network unit ONU.In order to realize the management to ONU equipment, the implementation of taking is at present OLT (Optical Line Terminal, optical line terminal) by OAM (Operation Administration and Maintenance, operation management maintain) or OMCI (ONT Management Control Interface, ONT manages control interface) proxy management ONU.
The specific implementation of this scheme is as follows: OLT externally issues unified public network management ip address, can by this public network management ip address access OLT with ONU and it is carried out to SNMP (Simple NetworkManagement Protocol, simple management agreement) management; BMS (Business Management System, business management system) according to the public network management ip address of ONU place OLT, send the SNMP message of access ONU, in this SNMP message, carry frame number/slot number/port/ONT ID (Optical NetworkTerminal IDentity, Optical Network Terminal sign) information of OLT.OLT receives the SNMP message forwarding by public network, obtain the OLT/ frame/groove/port/ONT id information in this SNMP message, and convert SNMP message to OAM/OMCI message and (in EPON system, use OAM, in GPON system, use OMCI), by PON (Passive Optical Network, EPON) line management passage, send to corresponding ONU equipment.
But, because passive optical network is the point-to-multipoint network architecture, under this system architecture, an OLT need to manage a plurality of ONU.Therefore, the OAM/OMCI definition more complicated in such scheme between OLT and ONU, it is higher that this will cause OLT to pass through OAM/OMCI proxy management ONU implementation complexity.Therefore, in prior art there is the technical problem of the operation and maintenance difficulty of system in the implementation of OLT proxy management ONU.
Summary of the invention
Embodiments of the invention provide method, the equipment and system of a kind of OLT proxy management ONU, thereby reduction system realizes difficulty and maintenance management complexity.
Object of the present invention can be achieved through the following technical solutions:
The method of proxy management ONU a kind of, comprise: receive the down management message from business management system BMS, described down management message comprises object IP address and destination slogan, wherein said object IP address is the shared public network IP address of a plurality of optical network unit ONU, and described destination slogan is that BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes; Corresponding relation according to the udp port setting in advance number with ONU private network IP address, is revised as by the described public network IP address carrying in described down management message the private network IP address that described object ONU is corresponding; According to described private network IP address, described amended down management message is sent to described object ONU.
A method of proxy management ONU, comprising: business management system BMS, according to the parameter of the parameter of OLT and ONU, is described ONU distributing user datagram protocol udp port number; Described BMS sends the udp port number of described ONU to described OLT, so that described OLT sets up the corresponding relation of udp port number and ONU private network IP address, the corresponding relation of described udp port number and ONU private network IP address for as described OLT when the down management message receiving from described BMS by described down management message repeating the foundation to object ONU.
A kind of optical line terminal OLT, comprise: downlink message receiving element, the down management message sending for receiving business management system BMS, described down management message carries object IP address and destination slogan, wherein said object IP address is the shared public network IP address of a plurality of optical network unit ONU, and described destination slogan is that described BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes; TCU transfer control unit, for the corresponding relation with ONU private network IP address according to the udp port that sets in advance number, is revised as by the object IP address of carrying in described down management message the private network IP address that described object ONU is corresponding; Downlink message transmitting element, for according to described private network IP address, sends to described object ONU by the amended down management message of described TCU transfer control unit.
The system of a kind of proxy management ONU, it is characterized in that, comprise business management system BMS, optical line terminal OLT as above and a plurality of optical network unit ONU, wherein said BMS is connected to described OLT, and described OLT is connected to described a plurality of ONU by way of point-to-multipoint.
The technical scheme being provided by the embodiment of the invention described above can be found out, in the embodiment of the present invention, because OLT is the ONU distribution private network IP address under it and sign udp port number, avoid the complicated management implementation complexity causing of OAM/OMCI definition between OLT and ONU higher, and then reduced management cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The processing procedure schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The processing procedure schematic diagram that Fig. 2 provides for another embodiment of the present invention;
The processing procedure schematic diagram that Fig. 3 provides for the embodiment of the present invention one;
The processing procedure schematic diagram that Fig. 4 provides for the embodiment of the present invention two;
The processing procedure schematic diagram that Fig. 5 provides for the embodiment of the present invention three;
The processing procedure schematic diagram that Fig. 6 provides for the embodiment of the present invention four;
The OLT structural representation of the centralized management that Fig. 7 provides for the embodiment of the present invention;
The OLT structural representation of the distributed management that Fig. 8 provides for the embodiment of the present invention;
The BMS structural representation that Fig. 9 provides for the embodiment of the present invention;
The system configuration schematic diagram that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
First the embodiment of the present invention provides the method for proxy management ONU a kind of, and it can realize in OLT, and described OLT can agent service management system BMS, and to object, ONU manages.
In one embodiment, when described BMS sends down management message to described object ONU, described OLT can receive described down management message, wherein said down management message can comprise object IP address and destination slogan, described object IP address is the shared public network IP address of a plurality of optical network unit ONU, and described destination slogan is that BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes; And according to the udp port setting in advance number the corresponding relation with ONU private network IP address, the described public network IP address carrying in described down management message is revised as to the private network IP address that described object ONU is corresponding; And described OLT can, further according to described private network IP address, send to described object ONU by described amended down management message.
When ONU sends up administrative message to BMS, described OLT can receive the up administrative message from ONU, described up administrative message comprises source IP address and source port number, the private network IP address that wherein said source IP address is described ONU, the transmitting terminal slogan that described source port number is described ONU; And according to the udp port setting in advance number the corresponding relation with ONU private network IP address, the source port number of described up administrative message is revised as to the udp port number corresponding with described ONU private network IP address, and described source IP address is revised as to described public network IP address; And described OLT can, further according to described public network IP address and described udp port number, send to described BMS by described amended up administrative message.
When described BMS carries out off-line arrangement to ONU, described OLT can further increase order according to the ONU from described BMS receiving, for described object ONU distributes private network IP address; And the udp port number corresponding according to described object ONU, configure the corresponding relation of the udp port number of described object ONU and the private network IP address of described object ONU; And after described object ONU reaches the standard grade, described private network IP address and described udp port number are sent to described object ONU.
When described object ONU initiates registration, described OLT can report to described BMS the on-line message of described object ONU, and receives its udp port number distributing for described object ONU that described BMS issues; And be that described object ONU distributes private network IP address, and configuration arranges the udp port number of described object ONU and the corresponding relation of private network IP address; And described private network IP address and described udp port number are sent to described object ONU.
Refer to Fig. 1, the implementation procedure of a kind of method by OLT proxy management ONU of the embodiment of the present invention can be as follows:
When BMS side issues down management message, so that object ONU is managed, OLT carries out S101.
S101:OLT is the corresponding relation with the private network IP address of ONU according to the udp port of the ONU that sets in advance number, the object IP address of carrying in the down management message receiving is revised as to the private network IP address of object ONU by the shared ONU public network IP address of all ONU under described OLT, the destination slogan carrying in down management message is revised as to the receiving port number of object ONU by the sign udp port number of object ONU, and amended down management message is sent to this object ONU, described udp port number is wherein that BMS is the udp port number that object ONU distributes, it can be used for object ONU to identify, to distinguish different ONU.
When object ONU reporting uplink administrative message, OLT carries out S102.
S102:OLT is according to the ONUUDP port numbers setting in advance and the corresponding relation of ONU private network IP address, the source IP address carrying in the up administrative message receiving is revised as to above-mentioned ONU public network IP address by the private network IP address of described object ONU, the source port number carrying in up administrative message is revised as to the udp port number of this object ONU by the transmitting terminal slogan of object ONU, and amended up administrative message is sent to BMS.
Wherein, up administrative message comprise following any one: up SNMP message, up FTP (FileTransfer Protocol, file transfer protocol (FTP)) administrative message, up NTP/SNTP (Network TimeProtocol/Simple Network Time Protocol, NTP (Network Time Protocol)/SNTP) administrative message, up Telnet (Telnet) administrative message, up DNS (Domain Name System, domain name system) administrative message, and other upstream plant administrative messages; Down management message comprise following any one: descending SNMP message, descending FTP administrative message, descending NTP/SNTP administrative message, descending Telnet administrative message, descending DNS administrative message, and other downstream plant administrative messages.
The shared ONU public network IP address of all ONU under above-mentioned OLT is that BMS is the public network IP address that under this OLT, all ONU distribute, this ONU public network IP address can be identical with the OLT management ip address of OLT, also can be different from OLT management ip address, as a kind of preferred implementation, can default configuration ONU public network IP address identical with the OLT management ip address of OLT.When the ONU public network IP address that distributes as BMS is different from OLT management ip address, the ARP (AddressResolution Protocol, address resolution protocol) that OLT also needs to carry out this ONU public network IP address responds and the operation such as route issue.
In the process of OLT proxy management ONU, bookkeeping can be that BMS initiates, and for example configuration operation, can also be that object ONU initiates, for example Trap operation.When initiating bookkeeping by BMS, the receiving port number of above-mentioned object ONU be down management message stiff end slogan (for example, in the configuration operation that BMS initiates, the stiff end slogan of SNMP message is 161), the stiff end slogan that the transmitting terminal slogan of object ONU is up administrative message; When initiating bookkeeping by object ONU, the receiving port of above-mentioned object ONU is the transient port number of object ONU transmitting-receiving message, and the transmitting terminal slogan of object ONU is the transient port number of object ONU transmitting-receiving message.In addition, initiating the modification of the administrative message that a side of management sends can carry out according to the corresponding relation between the sign udp port of the object ONU of above-mentioned foundation number and the private network IP address of object ONU, the modification of the administrative message that the opposing party responds can be carried out NAPT (Network Address Port Translation, the network address and port translation) conversion according to the dynamic four-tuple transformational relation table of setting up.
Wherein, four-tuple transformational relation table can be specifically the OLT (master control borad in the OLT of centralized management, PON business board in the OLT of distributed management) the first down management message that basis receives and first up administrative message Dynamic Establishing, this four-tuple comprises < object IP address, destination slogan, source IP address, the transient port number of the object ONU transmitting-receiving message that the destination slogan of source port number >, wherein OLT---ONU side or source port number are.
In the embodiment of the present invention, because OLT externally issues unified ONU public network IP address, and by sign udp port number, ONU is distinguished; Inner private network IP address and the ONU under it of using communicates, thereby realizes the proxy management to ONU.Than existing OLT proxy management implementation, avoided the complicated management implementation complexity causing of OAM/OMCI definition between OLT and ONU higher, and then reduced management cost.Therefore in addition, because OLT changes the proxy management of realizing ONU by NAT, do not take too much public network IP address, and different OLT can use identical private network IP address section, therefore greatly save public network IP address resources.
In the invention described above embodiment, OLT selects unappropriated IP address in internal control IP address pool, for the ONU under it distributes private network IP address, and set up the corresponding relation between the udp port number of ONU and the private network IP address of ONU, its implementation comprises: (one) is when BMS carries out off-line arrangement to object ONU, the ONU that OLT sends according to the BMS receiving increases order, for object ONU distributes private network IP address; The udp port number of the object ONU that OLT sends according to BMS, arranges the corresponding relation of the udp port number of object ONU and the private network IP address of object ONU; OLT, after object ONU reaches the standard grade, sends to object ONU by above-mentioned private network IP address and udp port number; Or (two), when object ONU initiates registration, OLT reports to BMS after the on-line message of object ONU, the udp port number of the object ONU that reception BMS issues; OLT is that object ONU distributes private network IP address; OLT arranges the corresponding relation of the udp port number of object ONU and the private network IP address of object ONU; OLT sends to object ONU by private network IP address and udp port number.
The specific implementation form of the udp port of above-mentioned ONU number and the corresponding relation of the private network IP address of ONU can but be not limited only to mapping relations table, be the mapping relations table that OLT safeguards corresponding relation between the udp port number of its lower ONU and the private network IP address of ONU, and can be in real time to this mapping relations table add, the operation such as deletion, replacement.In the administrative message transmitting between OLT and BMS, conventionally the udp port number by ONU public network IP address and object ONU carries out addressing, for example and without limitation, in above-mentioned mapping relations table, specifically can set up the corresponding relation between the udp port number of ONU public network IP address and object ONU and the private network IP address of ONU.
The embodiment of the present invention also provides in the process of a kind of proxy management ONU, the implementation method of BMS side, and its processing procedure as shown in Figure 2, comprises following operation:
S201, BMS are that object ONU distributes udp port number according to the parameter of OLT and object ONU parameter;
S202, BMS send the udp port number of object ONU to OLT.
Above-mentioned processing procedure can execution when BMS carries out off-line arrangement to object ONU, also can when object ONU online registration, carry out.
In addition, BMS is also in advance for all ONU under OLT distribute shared ONU public network IP address.This ONU public network IP address can be identical with the OLT management ip address of OLT, also can be different from OLT management ip address, and as a kind of preferred implementation, can default configuration ONU public network IP address identical with the OLT management ip address of OLT.
In the embodiment of the present invention, because BMS is that ONU distributes udp port number, in public network, can distinguish ONU by ONU public network IP address and udp port number, make OLT to change to realize the proxy management to ONU by NAT, reduced management cost, and this implementation makes BMS can adopt unified FTTB (Fiber To The Building, Fiber-To-The-Building) management mode, has simplified administration interface.
Conventionally can represent the port in communication equipment by " frame number/slot number/port numbers ", therefore the parameter of above-mentioned OLT can be specifically frame number/slot number/port numbers of OLT.Wherein, frame number refers to the frame number at the PON business board place in OLT, and frame number can be " 0 "; Slot number refers to the groove bit number of the PON business board place frame in OLT, in the computational methods of the udp port of embodiment of the present invention ONU, and the slot number of this slot number PON business board that specifically object ONU is corresponding; Port numbers refers to the port numbering of PON port on PON business board.
In the udp port computational methods of the ONU of a kind of optional embodiment of the present invention, this port numbers can refer to the port numbering of the PON port corresponding with object ONU on corresponding PON business board, and above-mentioned purpose ONU parameter can refer to the ONU ID of object ONU.Accordingly, BMS is that object ONU distributes the specific implementation of udp port number to comprise according to the parameter of OLT and object ONU parameter:
According to the UDP plot (A) of the OLT of configuration, on the PON business board place slot number (B) that object ONU is corresponding and the splitting ratio of this PON business board and each groove position, (for example on the splitting ratio of PON business board and each groove position, the product of PON business board quantity is 128 * 4=1024 to PON business board quantity, or 2048 etc.) product, for example, with the port numbers of PON port (C) corresponding with object ONU on PON business board corresponding to above-mentioned ONU and the splitting ratio of this PON business board (128, 256 etc.) the sum of products, obtain the udp port plot (D) of PON port corresponding with object ONU on the PON business board that object ONU is corresponding,
According to the identification number of object ONU (ONU ID), at the udp port plot (D) of above-mentioned PON port, to the scope of udp port plot (D)+(splitting ratio-1 of above-mentioned PON business board) of PON port, select a udp port number as object ONU.
For example and without limitation, the udp port computational methods of above-mentioned purpose ONU can represent by following computing formula:
D＝A+B×1024+C×128
In the invention described above embodiment, when BMS passes through OLT proxy management object ONU, can also comprise following operation:
BMS sends down management message to OLT, the object IP address of carrying in this down management message is the shared ONU public network IP address of all ONU under OLT, and the destination slogan carrying in this down management message is that BMS is the udp port number that described object ONU distributes.
Wherein, the shared ONU public network IP address of all ONU under OLT is that BMS is the public network IP address that under this OLT, all ONU distribute in advance, this ONU public network IP address can be identical with the OLT management ip address of OLT, also can be different from OLT management ip address, as a kind of preferred implementation, can default configuration ONU public network IP address identical with the OLT management ip address of OLT.
Below by the embodiment of the present invention, the specific implementation in actual application is described in detail.
Embodiment mono-
The embodiment of the present invention one provides a kind of BMS ONU to be carried out to the implementation of off-line arrangement, and as shown in Figure 3, specific implementation is as follows for its processing procedure:
S301, BMS calculate the udp port number of this ONU according to the frame of OLT number/slot number/port number information and ONU id information, concrete account form can be with reference to the description of above-described embodiment;
S302, BMS increase order by the udp port of ONU number and ONU and send to OLT, and wherein, udp port number can write ONU to be increased in order, can also send separately;
S303, OLT receive above-mentioned ONU increases order and udp port number;
It is that ONU distributes private network IP address that S304, OLT select available IP address in local pool, set up the corresponding relation of the udp port number of ONU and the private network IP address of ONU, and configure the corresponding relation of this ONU and PON business board, wherein, the corresponding relation of the ONU configuring and PON business board specifically can be kept in ACL (Access Control List, Access Control List (ACL));
S305, OLT be according to ONU and the corresponding relation of PON business board of configuration, issues the corresponding relation of the udp port number of ONU and the private network IP address of ONU to PON business board corresponding to ONU;
After ONU reaches the standard grade, OLT carries out S306, to ONU, issues private network IP address and the udp port number of above-mentioned distribution.
Complete after the off-line arrangement of ONU, OLT carries out NAT conversion to administrative message mutual between BMS and ONU, NAT conversion is specifically realized by PON business board, specifically realize the conversion between ONU public network IP address+udp port number and private network IP address, so that and the administrative message of the transmission between BMS use ONU public network IP address+udp port number, and the administrative message transmitting between ONU is used private network IP address.
OLT in above-mentioned processing procedure is for adopting the OLT of distributed management.ONU is being carried out to, in the process of off-line arrangement, also can adopt the OLT of centralized management, its implementation procedure can be with reference to above-mentioned processing procedure, and difference is only that NAT translation function is realized by the master control borad of OLT without the corresponding relation of configuration ONU and PON business board.
Embodiment bis-
The implementation that the embodiment of the present invention two provides a kind of ONU to register on OLT, it is processed as shown in Figure 4, and specific implementation is as follows:
After S401, ONU power on, to OLT, report registration message;
S402, OLT authenticate ONU, and to BMS, report ONU on-line message after authentication success, and the frame of OLT number/slot number/port number information and ONU id information, wherein, the frame of OLT number/slot number/port number information and ONU id information can write in ONU on-line message, also can send separately;
S403, BMS calculate the udp port number of this ONU according to the frame of OLT number/slot number/port number information and ONU id information, and the udp port of this ONU number is sent to OLT, and concrete account form can be with reference to the description of above-described embodiment;
S404, OLT receive the udp port number of above-mentioned ONU;
It is that ONU distributes private network IP address that S405, OLT select an available IP address in local pool, set up the corresponding relation of the udp port number of ONU and the private network IP address of ONU, and configuring the corresponding relation of this ONU and PON business board, the corresponding relation of the ONU of configuration and PON business board specifically can be kept in ACL;
S406, OLT be according to ONU and the corresponding relation of PON business board of configuration, issues the corresponding relation of the udp port number of ONU and the private network IP address of ONU to PON business board corresponding to ONU;
S407, OLT issue private network IP address and the udp port number of above-mentioned distribution to ONU.
Complete after the online registration of ONU, OLT carries out NAT conversion to administrative message mutual between BMS and ONU, NAT conversion is specifically realized by PON business board, specifically realize the conversion between ONU public network IP address+udp port number and private network IP address, so that and the administrative message of the transmission between BMS use ONU public network IP address+udp port number, and the administrative message transmitting between ONU is used private network IP address.
OLT in above-mentioned processing procedure is for adopting the OLT of distributed management.In the process of ONU online registration, also can adopt the OLT of centralized management, its implementation procedure can be with reference to above-mentioned processing procedure, and difference is only that NAT translation function is realized by the master control borad of OLT without the corresponding relation of configuration ONU and PON business board.
Embodiment tri-
When carrying out off-line arrangement by above-described embodiment pair of O NU, or undertaken after online registration by above-described embodiment two ONU, PON business board under the OLT of distributed management has been preserved the corresponding relation of the udp port number of ONU and the private network IP address of ONU, in the embodiment of the present invention three, this corresponding relation is preserved with the form of NAT mapping relations table.Below, the embodiment of the present invention three be take BMS, and to issue descending SNMP message be example, describes the implementation of the OLT proxy management ONU of distributed management in detail, as shown in Figure 5, specific implementation is as follows for its processing procedure:
S501, BMS send descending SNMP message to OLT, the object IP address of carrying in this descending SNMP message is the shared ONU public network IP address of all ONU under this OLT, and the destination slogan carrying in this descending SNMP message is that BMS is the udp port number that this object ONU distributes;
S502, OLT receive this descending SNMP message, and according to pre-configured ACL, this descending SNMP message are handed down to the PON business board that object ONU is corresponding;
S503, above-mentioned PON business board receive this descending SNMP message, according to the NAT mapping relations table of preserving, the object IP address of carrying in this descending SNMP message is revised as to the private network IP address of object ONU, the destination slogan carrying is revised as to the receiving port number of object ONU in this descending SNMP message;
S504, above-mentioned PON business board are revised as the source MAC in above-mentioned descending SNMP message the MAC Address of OLT, and the target MAC (Media Access Control) address in this descending SNMP message are revised as to the MAC Address of object ONU;
S505, above-mentioned PON business board send to this object ONU by amended descending SNMP message;
S507, object ONU carry out descending SNMP message to be processed, to said process unaware.
It is example that above-mentioned processing procedure be take the OLT of distributed management.If adopt the OLT of centralized management, its implementation and above-mentioned processing procedure are similar, and difference is that the function of PON business board realizes by the master control borad of OLT, therefore, and without configuration ACL.
In the implementation of the proxy management ONU that the embodiment of the present invention three provides, object ONU still operates according to the mode of existing treatment S NMP message, be that the method that the embodiment of the present invention provides is not improved ONU, therefore saved and realized cost, and simplified implementation complexity.
Embodiment tetra-
When carrying out off-line arrangement by above-described embodiment pair of O NU, or undertaken after online registration by above-described embodiment two ONU, PON business board under the OLT of distributed management has been preserved the corresponding relation of the udp port number of ONU and the private network IP address of ONU, in the embodiment of the present invention four, this corresponding relation is preserved with the form of NAT mapping relations table.Below, it is example that the embodiment of the present invention four be take the up administrative message of ONU active reporting, describes the implementation of OLT proxy management ONU of the up management of distributed management in detail, as shown in Figure 6, specific implementation comprises its processing procedure:
S601, object ONU are to OLT reporting uplink SNMP message, and the source IP address carrying in this up SNMP message is the private network IP address of object ONU, and the source port number carrying in this up SNMP message is the transmitting terminal slogan of object ONU;
S602, OLT receive this up SNMP message, and according to pre-configured ACL, this up SNMP message are handed down to the PON business board that object ONU is corresponding;
S603, above-mentioned PON business board receive this up SNMP message, and the NAT mapping relations table according to preserving, is revised as ONU public network IP address by the source IP address carrying in this up SNMP message, and it is the udp port number that described ONU distributes that source port number is revised as to BMS;
S604, above-mentioned PON business board are revised as the source MAC in above-mentioned up SNMP message the MAC Address of OLT, and the target MAC (Media Access Control) address in this up SNMP message are revised as to the MAC Address of BMS;
S605, above-mentioned PON business board send to BMS by amended up SNMP message;
S607, BMS process the up SNMP message receiving.
It is example that above-mentioned processing procedure be take the OLT of distributed management.If adopt the OLT of centralized management, its implementation and above-mentioned processing procedure are similar, and difference is that the function of PON business board realizes by the master control borad of OLT, therefore, and without configuration ACL.
In the implementation of the proxy management ONU that the embodiment of the present invention four provides, object ONU still operates according to the mode of existing treatment S NMP message, be that the method that the embodiment of the present invention provides is not improved ONU, therefore saved and realized cost, and simplified implementation complexity.
The all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, and aforesaid program can be stored in a computer read/write memory medium, and this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Method based on described in above-described embodiment, the embodiment of the present invention also provides a kind of optical line terminal OLT, and described OLT can act on behalf of BMS the ONU in PON system is managed.Particularly, in one embodiment, described OLT can comprise: downlink message receiving element, the down management message sending for receiving business management system BMS, described down management message carries object IP address and destination slogan, wherein said object IP address is the shared public network IP address of a plurality of optical network unit ONU, and described destination slogan is that described BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes; TCU transfer control unit, for the corresponding relation with ONU private network IP address according to the udp port that sets in advance number, is revised as by the object IP address of carrying in described down management message the private network IP address that described object ONU is corresponding; Downlink message transmitting element, for according to described private network IP address, sends to described object ONU by the amended down management message of described TCU transfer control unit.
Further, in one embodiment, described OLT can also comprise: uplink message receiving element and uplink message transmitting element.Wherein, described uplink message receiving element, for receiving the up administrative message from ONU, described up administrative message carries source IP address, the private network IP address that described source IP address is described ONU; And, described TCU transfer control unit, also for according to setting in advance the udp port number corresponding relation with ONU private network IP address, udp port number corresponding to described ONU private net address is carried on to described up administrative message, and the source IP address of described up administrative message is revised as to the public network IP address number corresponding with described udp port; In addition, described uplink message transmitting element, for according to described public network IP address and described udp port number, sends to described BMS by the amended up administrative message of described TCU transfer control unit.
Further, described OLT can also comprise off-line arrangement unit and/or registration dispensing unit.
Described off-line arrangement unit is for when BMS carries out off-line arrangement to described object ONU, and the ONU sending according to the described BMS receiving increases order, for described object ONU distributes private network IP address; Udp port number corresponding to object ONU sending according to described BMS, the corresponding relation of the sign udp port number of described object ONU and the private network IP address of described object ONU is set, and after described object ONU reaches the standard grade, described private network IP address and described udp port number are sent to described object ONU by described downlink message transmitting element.
Described registration dispensing unit, for when described object ONU initiates registration, reports the on-line message of described object ONU to described BMS, and receives its udp port number distributing for described object ONU that described BMS issues; For described object ONU distributes private network IP address, and the mark udp port number of described object ONU and the corresponding relation of private network IP address are set, and described private network IP address and described udp port number are sent to described object ONU by described downlink message transmitting element.
In addition, in specific embodiment, described TCU transfer control unit can be arranged on the PON business board of described OLT inside, and described off-line arrangement unit and described registration dispensing unit can be arranged on the master control borad of described OLT inside.
Refer to Fig. 7, the embodiment of the present invention provides a kind of OLT that adopts centralized management, and the specific implementation structure of the OLT of described centralized management can comprise:
The first downlink message receiving element 701, the down management message sending for receiving BMS, the object IP address of carrying in this down management message is the shared ONU public network IP address of all optical network unit ONU under OLT, and the destination slogan carrying in described down management message is the udp port number of object ONU;
The first uplink message receiving element 702, the up administrative message sending for receiving object ONU, the source IP address carrying in this up administrative message is the private network IP address of object ONU, the transmitting terminal slogan that the source port number that described up administrative message carries is described object ONU;
TCU transfer control unit 703, for the corresponding relation with ONU private network IP address according to the udp port of the ONU that sets in advance number, the private network IP address that object ONU is corresponding is revised as in the object IP address of carrying in above-mentioned down management message, the destination slogan carrying is revised as to the receiving port number of object ONU in above-mentioned down management message; Or, corresponding relation according to the udp port of the ONU setting in advance number with the private network IP address of ONU, the source IP address carrying in above-mentioned up administrative message is revised as to ONU public network IP address, the source port number carrying in above-mentioned up administrative message is revised as to the udp port number of object ONU, the function of TCU transfer control unit 703 specifically can be realized by the master control borad of OLT;
The first downlink message transmitting element 704, for sending to object ONU by the amended down management message of TCU transfer control unit 703;
The first uplink message transmitting element 705, for sending to BMS by the amended up administrative message of TCU transfer control unit 703.
Wherein, above-mentioned up administrative message comprise following any one: up SNMP message, up FTP administrative message, up NTP/SNTP administrative message, up Telnet administrative message, up DNS administrative message, and other upstream plant administrative messages; Down management message comprise following any one: descending SNMP message, descending FTP administrative message, descending NTP/SNTP administrative message, descending Telnet administrative message, descending DNS administrative message, and other downstream plant administrative messages.
The shared ONU public network IP address of all ONU under above-mentioned OLT is that BMS is the public network IP address that under this OLT, all ONU distribute, this ONU public network IP address can be identical with the OLT management ip address of OLT, also can be different from OLT management ip address, as a kind of preferred implementation, can default configuration ONU public network IP address identical with the OLT management ip address of OLT.When the ONU public network IP address that distributes as BMS is different from OLT management ip address, OLT also needs to carry out the operations such as the arp response of this ONU public network IP address and route issue.
The OLT that the embodiment of the present invention provides, owing to externally issuing unified ONU public network IP address, and distinguishes ONU by udp port number; Inner private network IP address and the ONU under it of using communicates, thereby realizes the proxy management to ONU.Than existing OLT proxy management implementation, avoided the complicated management implementation complexity causing of OAM/OMCI definition between OLT and ONU higher, and then reduced management cost.Therefore in addition, because OLT changes the proxy management of realizing ONU by NAT, do not take too much public network IP address, and different OLT can use identical private network IP address section, therefore greatly save public network IP address resources.
The OLT of the centralized management that the invention described above embodiment provides also comprises off-line arrangement unit 706, for when BMS carries out off-line arrangement to object ONU, according to the ONU receiving, increases order, for object ONU distributes private network IP address; The udp port number of the object ONU sending according to BMS, arranges the corresponding relation of the udp port number of object ONU and the private network IP address of object ONU; And after object ONU reaches the standard grade, private network IP address and udp port number are sent to object ONU by downlink message transmitting element 704.Above-mentioned OLT also comprises registration dispensing unit 707, for when object ONU initiates registration, reports after the on-line message of object ONU to BMS the udp port number of the object ONU that reception BMS issues; For object ONU distributes private network IP address; The corresponding relation of the udp port number of object ONU and the private network IP address of object ONU is set; And private network IP address and udp port number are sent to object ONU by downlink message transmitting element 704.
Refer to Fig. 8, the embodiment of the present invention also provides a kind of OLT that adopts distributed management.The specific implementation structure of the OLT of described distributed management can comprise:
The second downlink message receiving element 801, the down management message sending for receiving BMS, the object IP address of carrying in this down management message is the shared ONU public network IP address of all optical network unit ONU under OLT, and the destination slogan carrying in this down management message is the udp port number of object ONU;
The second uplink message receiving element 802, the up administrative message sending for receiving object ONU, the source IP address carrying in this up administrative message is the private network IP address of object ONU, and the source port number carrying in this up administrative message is the transmitting terminal slogan of object ONU;
The one PON unit 803, the one PON unit 803 is connected with object ONU, for the corresponding relation with ONU private network IP address according to the udp port of the ONU preserving number, the object IP address of carrying in above-mentioned down management message is revised as to the private network IP address of object ONU; Or, corresponding relation according to the udp port of the ONU preserving number with the private network IP address of ONU, the source IP address carrying in above-mentioned up administrative message is revised as to ONU public network IP address, the source port number carrying is revised as to the udp port number of object ONU in above-mentioned up administrative message;
The second downlink message transmitting element 804, for sending to object ONU by an amended down management message in PON unit 803;
The second uplink message transmitting element 805, for sending to BMS by an amended up administrative message in PON unit 803.
Wherein, OLT comprises at least one PON unit, and corresponding at least one ONU in each PON unit, and an above-mentioned PON unit refers to the PON unit corresponding with object ONU.The function of the PON unit in the embodiment of the present invention specifically can be realized by the PON business board of OLT, specifically can realize by the CPU software of PON business board, also can realize by logic hardware unit.
Above-mentioned up administrative message comprise following any one: up SNMP message, up FTP administrative message, up NTP/SNTP administrative message, up Telnet administrative message, up DNS administrative message, and other upstream plant administrative messages; Down management message comprise following any one: descending SNMP message, descending FTP administrative message, descending NTP/SNTP administrative message, descending Telnet administrative message, descending DNS administrative message, and other downstream plant administrative messages.
The shared ONU public network IP address of all ONU under above-mentioned OLT is that BMS is the public network IP address that under this OLT, all ONU distribute, this ONU public network IP address can be identical with the OLT management ip address of OLT, also can be different from OLT management ip address, as a kind of preferred implementation, can default configuration ONU public network IP address identical with the OLT management ip address of OLT.When the ONU public network IP address that distributes as BMS is different from OLT management ip address, OLT also needs to carry out the operations such as the arp response of this ONU public network IP address and route issue.
The OLT that the embodiment of the present invention provides, owing to externally issuing unified ONU public network IP address, and distinguishes ONU by udp port number; Inner private network IP address and the ONU under it of using communicates, thereby realizes the proxy management to ONU.Than existing OLT proxy management implementation, avoided the complicated management implementation complexity causing of OAM/OMCI definition between OLT and ONU higher, and then reduced management cost.Because OLT changes the proxy management of realizing ONU by NAT, therefore do not take too much public network IP address, and different OLT can use identical private network IP address section, therefore greatly saved public network IP address resources.In addition, owing to adopting distributed management, only need to realize NAPT function at IP layer, and without processing tension management agreement (as snmp protocol etc.), therefore improve the stability of systematic function.
The OLT of the distributed management that the invention described above embodiment provides also comprises control unit 806, the function of this control unit 806 specifically can be realized by the master control borad of OLT, this control unit 806 comprises off-line arrangement subelement 8061, for when BMS carries out off-line arrangement to object ONU, according to the ONU receiving, increase order, for object ONU distributes private network IP address; The udp port number of the object ONU sending according to BMS, arranges the corresponding relation of the udp port number of object ONU and the private network IP address of object ONU, and corresponding relation is sent to a PON unit; After object ONU reaches the standard grade, private network IP address and udp port number are sent to object ONU by downlink message transmitting element 804.This control unit 806 also comprises registration configuration subelement 8062, for when object ONU initiates registration, reports after the on-line message of object ONU to BMS the udp port number of the object ONU that reception BMS issues; For object ONU distributes private network IP address; The corresponding relation of the udp port number of object ONU and the private network IP address of object ONU is set, and described corresponding relation is sent to a described PON unit; Described private network IP address and udp port number are sent to object ONU by downlink message transmitting element 804.
Above-mentioned control unit 806 also comprises flow-dividing control subelement 8063, be used for according to pre-configured PON unit and the corresponding relation of ONU, and according to the udp port number of the object ONU carrying in down management message, the down management message repeating that the second downlink message receiving element is received is given a PON unit 803.Wherein, pre-configured and preserve all PON unit of OLT and the corresponding relation between ONU in control unit 806, specifically can for each PON unit, distribute corresponding ONU according to the UDP plot of OLT and the slot number of place, PON unit frame of configuration, and set up the corresponding relation between PON unit and ONU.
In the distributed management OLT that the embodiment of the present invention provides, the one PON unit 803 is also for being revised as the source MAC of down management message the MAC Address of OLT, and the target MAC (Media Access Control) address in down management message being revised as to the MAC Address of object ONU, its specific implementation is that MAC Address corresponding to the NAT corresponding relation that issues according to control unit 806 (being udp port that ONU is corresponding number and the corresponding relation of ONU private network IP address) completes the conversion of MAC Address; Control unit 806 is also for being revised as the source MAC of up administrative message the MAC Address of OLT, and the target MAC (Media Access Control) address in up administrative message being revised as to the MAC Address of BMS, its specific implementation is to complete the conversion of MAC Address according to MAC Address corresponding to NAT corresponding relation (being udp port that ONU is corresponding number and the corresponding relation of ONU private network IP address).
In addition, in the process of OLT proxy management ONU, bookkeeping can be that BMS initiates, and can also be that object ONU initiates.Due in communication system, conventionally to administrative message definition well-known port number, for example, to realizing the SNMP message definition port numbers 161 of configuration operation, ONU is fixing receives by 161 ports the descending SNMP message that BMS initiates, and passes through 161 ports to BMS reporting uplink SNMP message, to realize the configuration operation to ONU, this configuration operation is initiated by BMS, comprises get operation, set operation etc.; To realizing the SNMP message definition port numbers 162 of Trap operation, ONU is fixing by 162 port reporting uplink SNMP messages, and receives descending SNMP message by 162 ports, to realize the Trap operation to ONU, Trap operation is initiated by ONU.When initiating bookkeeping by BMS, the receiving port number of above-mentioned object ONU be down management message stiff end slogan (for example, in the configuration operation that BMS initiates, the stiff end slogan of SNMP message is 161), the stiff end slogan that the transmitting terminal slogan of object ONU is up administrative message; When initiating bookkeeping by object ONU, the receiving port of above-mentioned object ONU is the transient port number of object ONU transmitting-receiving message, and the transmitting terminal slogan of object ONU is the transient port number of object ONU transmitting-receiving message.In addition, initiating the modification of the administrative message that a side of management sends can carry out according to the corresponding relation between the udp port of the object ONU of above-mentioned foundation number and the private network IP address of object ONU, the modification of the administrative message that the opposing party responds can be carried out NAPT (NetworkAddress Port Translation, the network address and port translation) conversion according to the dynamic four-tuple transformational relation table of setting up.Wherein, four-tuple transformational relation table can be specifically the OLT (master control borad in the OLT of centralized management, PON business board in the OLT of distributed management) the first down management message that basis receives and first up administrative message Dynamic Establishing, this four-tuple comprises < object IP address, destination slogan, source IP address, the transient port number of the object ONU transmitting-receiving message that the destination slogan of source port number >, wherein OLT---ONU side or source port number are.
The embodiment of the present invention also further provides a kind of BMS in addition, and as shown in Figure 9, the specific implementation structure of described BMS can comprise its structure:
Port number assignment unit 901, for being that object ONU distributes udp port number according to the parameter of OLT and object ONU parameter;
Parameter transmitting element 902, for send the udp port number of ONU public network IP address and object ONU to OLT, so that described OLT sets up the corresponding relation of udp port number and ONU private network IP address, the corresponding relation of described udp port number and ONU private network IP address for as described OLT when the down management message receiving from described BMS by described down management message repeating the foundation to object ONU.
The BMS that the invention described above embodiment provides also comprises packet sending unit 903, for sending down management message to OLT, the object IP address of carrying in this down management message is the shared ONU public network IP address of all ONU under OLT, and the destination slogan carrying in this down management message is the udp port number of object ONU.
The BMS that the embodiment of the present invention provides, owing to distributing udp port number for ONU, make can distinguish ONU by ONU public network IP address and udp port number in public network, make OLT to change to realize the proxy management to ONU by NAT, reduced management cost, and this implementation makes BMS can adopt unified FTTB management mode, has simplified administration interface.
Conventionally can represent the port in communication equipment by " frame number/slot number/port numbers ", therefore the parameter of above-mentioned OLT can be specifically frame number/slot number/port numbers of OLT.Wherein, frame number refers to the frame number at the PON business board place under OLT, and frame number is generally " 0 "; Slot number refers to the groove bit number of the PON business board place frame under OLT, in the computational methods of the udp port of embodiment of the present invention ONU, and the slot number of this slot number PON business board that specifically object ONU is corresponding; Port numbers refers to the port numbering of PON port on PON business board, and in the udp port computational methods of embodiment of the present invention ONU, this port numbers refers to the port numbering of the PON port corresponding with object ONU on corresponding PON business board.Above-mentioned object ONU parameter is the ONU ID of the ONU of feeling the pulse with the finger-tip specifically.Accordingly, BMS is that object ONU distributes the specific implementation of udp port number to comprise according to the parameter of OLT and object ONU parameter: according to the UDP plot (A) of the OLT of configuration, on the PON business board place slot number (B) that object ONU is corresponding and the splitting ratio of this PON business board and each groove position, (for example on the splitting ratio of PON business board and each groove position, the product of PON business board quantity is 1024 to PON business board quantity, 2048 etc.) product, for example, with the port numbers of PON port (C) corresponding with object ONU on PON business board corresponding to above-mentioned ONU and the splitting ratio of this PON business board (128, 256 etc.) the sum of products, obtain the udp port plot (D) of PON port corresponding with object ONU on the PON business board that object ONU is corresponding, according to the identification number of object ONU (ONU ID), at the udp port plot (D) of above-mentioned PON port, to the scope of udp port plot (D)+(splitting ratio-1 of above-mentioned PON business board) of PON port, select a udp port number as object ONU.For example and without limitation, the udp port computational methods of above-mentioned purpose ONU can represent by following computing formula:
D＝A+B×1028+C×128
The embodiment of the present invention also provides the system of a kind of proxy management ONU, and as shown in figure 10, specific implementation structure comprises centralized management formula OLT and/or the above-mentioned distribution management formula OLT that at least one is above-mentioned, above-mentioned arbitrary BMS, and at least one object ONU to its structure.Wherein, described BMS is connected to described OLT, and described OLT is connected to described a plurality of ONU by way of point-to-multipoint.BMS communicates by OLT and ONU, and OLT, by externally issuing unified ONU public network IP address, is internally that ONU distributes private network IP address, carries out NAT conversion and realizes the proxy management to ONU.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. a method of proxy management ONU, is characterized in that, comprising:
Reception is from the down management message of business management system BMS, described down management message comprises object IP address and destination slogan, wherein said object IP address is the shared public network IP address of a plurality of optical network unit ONU, described destination slogan is that BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes, described BMS is that object ONU distributing user datagram protocol udp port number comprises: according to the UDP plot of the optical line terminal OLT of configuration, the product of PON business board quantity on the PON business board place slot number that described ONU is corresponding and the splitting ratio of described PON business board and each groove position, with the port numbers of PON port corresponding with ONU on PON business board corresponding to described ONU and the sum of products of the splitting ratio of described PON business board, obtain the udp port plot of PON port corresponding with described ONU on the PON business board that described ONU is corresponding, according to the identification number of described ONU, it in the scope of the udp port plot of PON business board corresponding to described ONU udp port plot+(splitting ratio-1 of described PON business board) of corresponding PON business board to described ONU, is described ONU distribution udp port number,
Corresponding relation according to the udp port setting in advance number with ONU private network IP address, is revised as by the described public network IP address carrying in described down management message the private network IP address that described object ONU is corresponding;
According to described private network IP address, described amended down management message is sent to described object ONU.
2. method according to claim 1, is characterized in that, also comprises:
Reception is from the up administrative message of ONU, and described up administrative message comprises source IP address and source port number, the private network IP address that wherein said source IP address is described ONU, the transmitting terminal slogan that described source port number is described ONU;
Corresponding relation according to the udp port setting in advance number with ONU private network IP address, is revised as the udp port number corresponding with described ONU private network IP address by the source port number of described up administrative message, and described source IP address is revised as to described public network IP address;
According to described public network IP address and described udp port number, described amended up administrative message is sent to described BMS.
3. method according to claim 1 and 2, is characterized in that, also comprises:
According to the ONU from described BMS receiving, increase order, for described object ONU distributes private network IP address;
The udp port number corresponding according to described object ONU, configures the corresponding relation of the udp port number of described object ONU and the private network IP address of described object ONU;
After described object ONU reaches the standard grade, described private network IP address and described udp port number are sent to described object ONU.
4. method according to claim 1 and 2, is characterized in that, also comprises:
To described BMS, report the on-line message of described object ONU, and receive its udp port number distributing for described object ONU that described BMS issues;
For described object ONU distributes private network IP address, and configuration arranges the udp port number of described object ONU and the corresponding relation of private network IP address;
Described private network IP address and described udp port number are sent to described object ONU.
5. an optical line terminal OLT, is characterized in that, comprising:
Downlink message receiving element, the down management message sending for receiving business management system BMS, described down management message carries object IP address and destination slogan, wherein said object IP address is the shared public network IP address of a plurality of optical network unit ONU, described destination slogan is that described BMS is the User Datagram Protoco (UDP) udp port number that object ONU distributes, and described BMS is that object ONU distributing user datagram protocol udp port number comprises:
According to the product of PON business board quantity on the splitting ratio of PON business board place slot number corresponding to UDP plot, the described ONU of the described OLT of configuration and described PON business board and each groove position, with the port numbers of PON port corresponding with ONU on PON business board corresponding to described ONU and the sum of products of the splitting ratio of described PON business board, obtain the udp port plot of PON port corresponding with described ONU on the PON business board that described ONU is corresponding; According to the identification number of described ONU, it in the scope of the udp port plot of PON business board corresponding to described ONU udp port plot+(splitting ratio-1 of described PON business board) of corresponding PON business board to described ONU, is described ONU distribution udp port number;
TCU transfer control unit, for the corresponding relation with ONU private network IP address according to the udp port that sets in advance number, is revised as by the object IP address of carrying in described down management message the private network IP address that described object ONU is corresponding;
Downlink message transmitting element, for according to described private network IP address, sends to described object ONU by the amended down management message of described TCU transfer control unit.
6. OLT according to claim 5, it is characterized in that, also comprise uplink message receiving element and uplink message transmitting element, wherein, described uplink message receiving element, for receiving the up administrative message from ONU, described up administrative message carries source IP address, the private network IP address that described source IP address is described ONU;
Described TCU transfer control unit, also for according to setting in advance the udp port number corresponding relation with ONU private network IP address, udp port number corresponding to described ONU private net address is carried on to described up administrative message, and the source IP address of described up administrative message is revised as to the public network IP address number corresponding with described udp port;
Described uplink message transmitting element, for according to described public network IP address and described udp port number, sends to described BMS by the amended up administrative message of described TCU transfer control unit.
7. OLT according to claim 5, it is characterized in that, also comprise off-line arrangement unit, described off-line arrangement unit is for when BMS carries out off-line arrangement to described object ONU, the ONU sending according to the described BMS receiving increases order, for described object ONU distributes private network IP address; Udp port number corresponding to object ONU sending according to described BMS, the corresponding relation of the sign udp port number of described object ONU and the private network IP address of described object ONU is set, and after described object ONU reaches the standard grade, described private network IP address and described udp port number are sent to described object ONU by described downlink message transmitting element.
8. OLT according to claim 7, it is characterized in that, described OLT also comprises registration dispensing unit, described registration dispensing unit is for when described object ONU initiates registration, to described BMS, report the on-line message of described object ONU, and receive its udp port number distributing for described object ONU that described BMS issues; For described object ONU distributes private network IP address, and the mark udp port number of described object ONU and the corresponding relation of private network IP address are set, and described private network IP address and described udp port number are sent to described object ONU by described downlink message transmitting element.
9. OLT according to claim 8, is characterized in that, described TCU transfer control unit is arranged on the PON business board of described OLT inside, and described off-line arrangement unit and described registration dispensing unit are arranged on the master control borad of described OLT inside.
10. a method of proxy management ONU, is characterized in that, comprising:
Business management system BMS, according to the parameter of the parameter of OLT and ONU, is described ONU distributing user datagram protocol udp port number;
Described BMS sends the udp port number of described ONU to described OLT, so that described OLT sets up the corresponding relation of udp port number and ONU private network IP address, the corresponding relation of described udp port number and ONU private network IP address for as described OLT when the down management message receiving from described BMS by described down management message repeating the foundation to object ONU;
Described BMS is that described ONU allocation identification User Datagram Protoco (UDP) udp port number comprises according to the parameter of described OLT and ONU parameter:
According to the product of PON business board quantity on the splitting ratio of PON business board place slot number corresponding to UDP plot, the described ONU of the described OLT of configuration and described PON business board and each groove position, with the port numbers of PON port corresponding with ONU on PON business board corresponding to described ONU and the sum of products of the splitting ratio of described PON business board, obtain the udp port plot of PON port corresponding with described ONU on the PON business board that described ONU is corresponding; According to the identification number of described ONU, it in the scope of the udp port plot of PON business board corresponding to described ONU udp port plot+(splitting ratio-1 of described PON business board) of corresponding PON business board to described ONU, is described ONU distribution udp port number.
11. methods according to claim 10, is characterized in that, also comprise:
Described BMS sends down management message to described OLT, and the object IP address of carrying in described down management message is the shared public network IP address of a plurality of ONU, and the destination slogan carrying in described down management message is the udp port number of object ONU.
The system of 12. 1 kinds of proxy management ONU, it is characterized in that, comprise business management system BMS, the optical line terminal OLT as described in any one in the claims 5 to 9 and a plurality of optical network unit ONU, wherein said BMS is connected to described OLT, and described OLT is connected to described a plurality of ONU by way of point-to-multipoint.
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| CN102882717B (en) * | 2012-09-26 | 2016-05-04 | 烽火通信科技股份有限公司 | The management method of optical network unit in passive optical network |
| CN103095705B (en) * | 2013-01-16 | 2016-02-10 | 中兴通讯股份有限公司 | The method and apparatus of isolated area main frame in access local area network (LAN) |
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