CN103812708A - Method for single family unit ONU port capability recognition of GPON system - Google Patents
Method for single family unit ONU port capability recognition of GPON system Download PDFInfo
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- CN103812708A CN103812708A CN201410070840.5A CN201410070840A CN103812708A CN 103812708 A CN103812708 A CN 103812708A CN 201410070840 A CN201410070840 A CN 201410070840A CN 103812708 A CN103812708 A CN 103812708A
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Abstract
The invention discloses a method for single family unit ONU port capability recognition of a GPON system. The method comprises the steps of establishing an OMCC channel between an OLT and an ONU; sending uploading commands to the ONU through the OLT; replying to the OLT with an uploading response data packet through the ONU; analyzing the uploading response data packet sent by the ONU through the OLT, and obtaining the total uploading number; sending re-uploading commands to the ONU through the OLT, replying to the OLT with a re-uploading response data packet through the ONU; obtaining and analyzing the re-uploading response data packet sent by the ONU through the OLT; enabling the OLT to set the obtained re-uploading response data packet times i to be equal to (i+1); judging whether the obtained re-uploading response data packet times i is smaller than the total uploading number through the OLT; when the re-uploading response data packet times i is smaller than the total uploading number, enabling the OLT to send the re-uploading commands to the ONU; when the the re-uploading response data packet times i is no smaller than the total uploading number, ending the recognition process; and ending optical network unit recognition by the optical line terminal (OLT).
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of for GPON(Gigabit-capable Passive Optical Networks gigabit gauge without light source network, be called for short GPON) system list home unit type (Single Family Unit, be called for short SFU) ONU(Optical Network Unit optical network unit port, be called for short ONU) recognition methods.
Background technology
GPON system operational administrative function should be supported the management functions such as configuration to ONU, fault, performance, safety.The operational administrative function of ONU has two kinds of implementations: one is local management, and one is telemanagement.In ONU telemanagement, a very important part is exactly the Port Management of ONU, in order to realize, the port of ONU is managed for configuration, the identification of the port ability to ONU just seems and is even more important, but in actual applications, distance supervisor usually cannot be seen the ONU that far-end connects, and cannot determine by actual look the port ability of ONU.
The prerequisite that current conventional ONU port capability identification method can correctly be identified ONU port ability is exactly optical line terminal (Optical Line Terminal, be called for short OLT) software code in store the port information of this ONU, and store in ONU2-G management entity (Managed Entity, be called for short ME) supplier products code (Vendor product code) property value to the mapping relations of port information data structure.The support of every increase to a kind of new ONU, all need to revise OLT software code, increase port information data structure and mapping relations that this ONU is corresponding, this limit decision the current ONU port capability identification method ONU that can only produce same company of OLT producer, and the ONU that this model OLT intercommunication was debugged comes into force.
Summary of the invention
The object of the present invention is to provide a kind of for GPON system list home unit type ONU port capability identification method; The method, without any manufacturer's information, only need meet the SFU type ONU of main flow GPON standard, all can correctly realize the identification to ONU port ability, and the intercommunication performance of OLT and ONU is greatly improved.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of GPON system list home unit type ONU port capability identification method that is used for, is characterized in, the method comprises following steps:
Step 1, sets up optical network terminal management control channel between optical line terminal and optical network unit;
Step 2, sends " uploading " order by above-mentioned optical line terminal to above-mentioned optical network unit;
Step 3, replys " uploading response " packet by this optical network unit to optical line terminal;
Step 4, resolves by this optical line terminal " uploading response " packet that optical network unit sends, and obtains " uploading total degree ";
Step 5, sends " again uploading " order by this optical line terminal to above-mentioned optical network unit;
Step 7, is obtained and is resolved " again uploading response " packet sending from optical network unit by above-mentioned optical line terminal, extract respectively ethernet port information, cable TV interface message;
Step 8, this optical line terminal arranges obtained " again uploading response " packet number of times i=i+1;
Step 9, judges by above-mentioned optical line terminal whether " again uploading response " the packet number of times i obtaining is less than " uploading total degree "; While being less than, jump to step 5; While being not less than, identifying finishes, execution step 10;
Step 10, extracts respectively the total quantity of the total quantity of all above-mentioned ethernet port information acquisition ethernet ports and the port of all above-mentioned Ethernet information acquisition cable TV interface by optical line terminal.
Above-mentioned step 7 comprises following steps:
Step 7.1, above-mentioned optical line terminal obtains " again uploading response " packet that above-mentioned optical network unit sends;
Step 7.2, above-mentioned optical line terminal obtains " attribute of management entity " field list in " again uploading response " packet and is shown Ethernet interface, " again uploading response " packet that cable TV interface is corresponding;
Step 7.3, resolve respectively " attribute of management entity " field list in " again uploading response " packet by this optical line terminal and be shown Ethernet interface, packet that cable TV interface is corresponding, setting receives " again uploading response " data packet number m1=m1+1 of Ethernet interface type " attribute of management entity " field, and " again uploading response " the data packet number m2=m2+1 that receives cable TV interface type " attribute of management entity " field is set;
The above-mentioned optical line terminal of step 7.4 is respectively according to m1 " again uploading response " packet, different " instance properties of management entity " field in m2 " again uploading response " packet, the example quantity n1=n1+1 of different instances " instance properties of management entity " field in m1 " again uploading response " packet is set, the example quantity n2=n2+1 of different instances " instance properties of management entity " field in m2 " again uploading response " packet is set, the port number of determining respectively Ethernet interface is n1, the port number of cable TV interface is n2.
The present invention compared with prior art has the following advantages: the method, without the manufacturer's information of storing in ONU, is also debugged with OLT intercommunication without ONU in advance, has avoided OLT specially for the ONU of different moneys revises software code simultaneously.The SFU type ONU that only need meet main flow GPON standard, all can correctly realize the identification to ONU port ability, has greatly strengthened the intercommunication performance of OLT and ONU.
Accompanying drawing explanation
Fig. 1 is a kind of GPON network working mode figure for GPON system list home unit type ONU port capability identification method of the present invention.
Fig. 2 is a kind of overall flow figure for GPON system list home unit type ONU port capability identification method of the present invention.
Fig. 3 is a kind of particular flow sheet for GPON system list home unit type ONU port capability identification method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
" requirement of the GPON of China Telecom equipment and technology " regulation SFU type ONU takes OMCI(Optical Network Terminal Management and Control Interface) network terminal management and control interface, be called for short OMCI) mode carry out the telemanagement of ONU, the ethernet port of supporting for SFU type ONU and cable TV port (being called for short CATV port), if upper this port that exists of this SFU, ONU is upper just must create the ME example that this port is corresponding automatically, and the number of the ME example of establishment equals the number of this port.
As shown in Figure 1, GPON system is by ONU, OLT and Optical Distribution Network (Optical Distribution Network is called for short ODN) composition.OLT, for Access Network provides the interface between network side and core net, is connected with each ONU by ODN.ONU, for Access Network provides the interface of user's side, provides the access of the multi-business flows such as speech, data, video and ODN, is subject to OLT centralized control.
As shown in Figure 2 and Figure 3, a kind of for GPON system list home unit type ONU port capability identification method, the method comprises following steps:
Step 1, sets up optical network terminal management control channel (Optical Network Terminal Management and Control Channel is called for short OMCC) between optical line terminal 10 and optical network unit 20.
Step 2, sends " uploading " order by above-mentioned optical line terminal 10 to above-mentioned optical network unit 20.
" uploading " order in the present embodiment is MIB upload order.This MIB upload command format is as follows:
Field: field name;
Byte: byte number;
Comments: field fill substance;
TCI: mark is controlled;
Message type: information type;
Device ID: device type;
ME ID: management entity type;
Message contents: the information content;
OMCI trailer:OMCI check code;
0x0A:ITU-988 standard regulation, for GPON system, this field is filled 0X0A;
Entity class=ONU data: the application entity that represents this packet effect is ONU data entity;
Entity instance field represents the example of the application entity of OMCI packet effect.For an ONU, ONU data entity exists, and only has an example, and instance number is 0.
Send " uploading " when order when optical network unit 20 receives optical line terminal 10, execution step 3, replys " uploading response " packet by this optical network unit 20 to optical line terminal 10.
Optical network unit 20 receives " uploading " order from above-mentioned optical line terminal 10.
Optical network unit 20 is replied " uploading response " packet to above-mentioned optical line terminal 10.
" uploading response " packet in the present embodiment is MIB upload response packet, and the concrete form of this packet is as follows:
Wherein " mibUpload EntryNum " is in step 4 and " uploads total degree ".
In the time that optical line terminal 10 receives " uploading response " packet that described optical network unit 20 sends, execution step 4, resolves by this optical line terminal 10 " uploading response " packet that optical network unit 20 sends, and obtains " uploading total degree ".
When optical line terminal 10 obtains after " uploading total degree ", execution step 5, sends " again uploading " order by this optical line terminal 10 to described optical network unit 20.
" again uploading " order in the present embodiment is MIB upload response order, and the concrete form of this order is as follows:
Send " again uploading " when order when optical network unit 20 receives optical line terminal 10, execution step 6, replys " again uploading response " packet by this optical network unit 20 to optical line terminal 10.
Above-mentioned optical network unit 20 receives " the again uploading " order from above-mentioned optical line terminal 10;
Above-mentioned optical network unit 20 is replied " again uploading response " packet to above-mentioned optical line terminal 10.
" again uploading response " packet in the present embodiment is MIB upload next response packet, and the concrete form of this packet is as follows:
Attribute mask: attribute mask field;
Value of first attribute: for indicating specific object value corresponding to attribute mask.
Wherein, " Entity class of object " field is " attribute of management entity " field in step 7.3, according to ITU-988 standard, the any application entity enumerated value having defined, because SFU only need support Ethernet interface and CATV interface, for SFU port identification function, only paying close attention to Entity class of object numerical value is 11 (Entity class of object is the Ethernet interface application entity of 11 corresponding ONU), the MIB upload next response packet of 162 (Entity class of object be 162 corresponding ONU with CATV mouth application entity).
Wherein, " Entity instance of object " field is " attribute of management entity " field in step 7.3.
Step 7, is obtained and is resolved " again uploading response " packet sending from optical network unit 20 by above-mentioned optical line terminal 10.This step comprises following steps:
Step 7.1, above-mentioned optical line terminal 10 obtains " again uploading response " packet that above-mentioned optical network unit 20 sends.
Step 7.2, above-mentioned optical line terminal 10 obtains " attribute of management entity " field list in " again uploading response " packet and is shown Ethernet interface, " again uploading response " packet that cable TV interface is corresponding.
Step 7.3, resolve respectively " attribute of management entity " field list in " again uploading response " packet by this optical line terminal 10 and be shown Ethernet interface, packet that cable TV interface is corresponding, setting receives " again uploading response " data packet number m1=m1+1 of Ethernet interface type " attribute of management entity " field, and " again uploading response " the data packet number m2=m2+1 that receives cable TV interface type " attribute of management entity " field is set.
In the present embodiment, OLT is according to the difference of " Entity class of object " field, receive only the MIB upload next response packet of " Entity class of object " field for " 11 ", " 162 ", and calculate " Entity class of object " field be the MIB upload next response data packet number m1 of " 11 ", calculating " Entity class of object " field be the MIB upload next response data packet number m2 of " 162 ".
The above-mentioned optical line terminal 10 of step 7.4 is respectively according to different " instance properties of management entity " field in m1 " again uploading response " packet, m2 " again uploading response " packet, arrange different instances " instance properties of management entity " field in individual " again uploading response " packet of m1 example quantity n1=n1+1, the example quantity n2=n2+1 of different instances " instance properties of management entity " field in individual " again uploading response " packet of m2 is set.
In the present embodiment, when OLT is " 11 " according to " Entity class of object " field, due to the difference of " Entity instance of object " field, the categorical measure n1 of the MIB upload next response packet of different instances " Entity instance of object " field is calculated in accumulation.When OLT is " 162 " according to " Entity class of object " field, due to the difference of " Entity instance of object " field, the example quantity n2 of the MIB upload next response packet of different instances " Entity instance of object " field is calculated in accumulation.
In the time that startup is carried out port identification to a SFU, OLT is to n1, n2, i initialization is set to 0, in the time receiving the packet that first " Entity class of object " field is " 11 ", n1 is 1, while often receiving the packet that new " Entity class of object " field is " 11 " below, n1 cumulative 1, new " Entity class of object " field is that the packet of " 11 " refers to that this packet " Entity instance of object " field is that 11 packets that still " Entity instance of object " field is 11 from previous " Entity instance of object " field are different, in like manner, in the time receiving first " Entity class of object " field for the packet of " 162 ", n2 is 1, after while often receiving the packet that new " Entity class of object " field is " 162 ", n2 cumulative 1.
Step 8, this optical line terminal 10 arranges obtained " again uploading response " packet number of times i=i+1.
Step 9, judges by above-mentioned optical line terminal 10 whether " again uploading response " the packet number of times i obtaining is less than " uploading total degree "; While being less than, jump to step 5; While being not less than, identifying finishes, execution step 10.
Step 10, extracts respectively the total quantity of the total quantity of all above-mentioned ethernet port information acquisition ethernet ports and the port of all above-mentioned Ethernet information acquisition cable TV interface by optical line terminal 10.
Optical line terminal 10 records the categorical measure n1 of all " again uploading response " packets with difference " instance properties of management entity " field that belong to Ethernet interface, and extracts the port total quantity n1 of Ethernet interface.
Optical line terminal 10 records the categorical measure n2 of all " again uploading response " packets with difference " instance properties of management entity " field that belong to cable TV interface, and extracts the port total quantity n2 of cable TV interface.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Read after foregoing those skilled in the art, for multiple modification of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (2)
1. for a GPON system list home unit type ONU port capability identification method, it is characterized in that, the method comprises following steps:
Step 1, sets up optical network terminal management control channel between optical line terminal (10) and optical network unit (20);
Step 2, sends " uploading " order by described optical line terminal (10) to described optical network unit (20);
Step 3, replys " uploading response " packet by this optical network unit (20) to optical line terminal (10);
Step 4, resolves by this optical line terminal (10) " uploading response " packet that optical network unit (20) sends, and obtains " uploading total degree ";
Step 5, sends " again to described optical network unit (20) by this optical line terminal (10)
Step 6, replys " again uploading response " packet by this optical network unit (20) to optical line terminal (10);
Step 7, is obtained and is resolved " again uploading response " packet sending from optical network unit (20) by described optical line terminal (10), extract respectively ethernet port information, cable TV interface message;
Step 8, this optical line terminal (10) arranges obtained " again uploading response " packet number of times i=i+1;
Step 9, judges by described optical line terminal (10) whether " again uploading response " the packet number of times i obtaining is less than " uploading total degree "; While being less than, jump to step 5; While being not less than, identifying finishes, execution step 10;
Step 10, extracts respectively the total quantity of the total quantity of all described ethernet port information acquisition ethernet ports and the port of all described Ethernet information acquisition cable TV interface by optical line terminal (10).
2. as claimed in claim 1ly it is characterized in that for GPON system list home unit type ONU port capability identification method, described step 7 comprises following steps:
Step 7.1, described optical line terminal (10) obtains " again uploading response " packet that described optical network unit (20) sends;
Step 7.2, described optical line terminal (10) obtains " attribute of management entity " field list in " again uploading response " packet and is shown Ethernet interface, " again uploading response " packet that cable TV interface is corresponding;
Step 7.3, resolve respectively " attribute of management entity " field list in " again uploading response " packet by this optical line terminal (10) and be shown Ethernet interface, packet that cable TV interface is corresponding, setting receives " again uploading response " data packet number m1=m1+1 of Ethernet interface type " attribute of management entity " field, and " again uploading response " the data packet number m2=m2+1 that receives cable TV interface type " attribute of management entity " field is set;
Optical line terminal (10) described in step 7.4 is respectively according to different " instance properties of management entity " field in m1 " again uploading response " packet, m2 " again uploading response " packet, arrange different instances " instance properties of management entity " field in individual " again uploading response " packet of m1 example quantity n1=n1+1, the example quantity n2=n2+1 of different instances " instance properties of management entity " field in individual " again uploading response " packet of m2 is set; The port number of determining respectively Ethernet interface is that the port number of n1, cable TV interface is n2.
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| CN101945310A (en) * | 2010-09-16 | 2011-01-12 | 中兴通讯股份有限公司 | Method for reporting capacity of ONU port in real time and ONU |
| CN102238019A (en) * | 2010-04-20 | 2011-11-09 | 中兴通讯股份有限公司 | Optical network unit (ONU) and method for reporting capacity thereof |
| CN103281600A (en) * | 2013-06-03 | 2013-09-04 | 上海斐讯数据通信技术有限公司 | Method for identifying ONU types |
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- 2014-02-28 CN CN201410070840.5A patent/CN103812708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170468A (en) * | 2007-11-22 | 2008-04-30 | 中国电信股份有限公司 | Acquisition method and system for optical network unit capability information |
| CN102238019A (en) * | 2010-04-20 | 2011-11-09 | 中兴通讯股份有限公司 | Optical network unit (ONU) and method for reporting capacity thereof |
| CN101945310A (en) * | 2010-09-16 | 2011-01-12 | 中兴通讯股份有限公司 | Method for reporting capacity of ONU port in real time and ONU |
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