CN101621399A - Management method and system of passive optical network as well as optical line terminal - Google Patents
Management method and system of passive optical network as well as optical line terminal Download PDFInfo
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- CN101621399A CN101621399A CN200810128216A CN200810128216A CN101621399A CN 101621399 A CN101621399 A CN 101621399A CN 200810128216 A CN200810128216 A CN 200810128216A CN 200810128216 A CN200810128216 A CN 200810128216A CN 101621399 A CN101621399 A CN 101621399A
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Abstract
The embodiment of the invention discloses a management method and a system of a passive optical network as well as an optical line terminal, relating to the technical field of communication. The embodiment of the invention is invented for the flexible management of an optical network unit. The above method comprises: the optical line terminal receives a message sent by a gateway of a broadband network, and the message comprises parameter configuration information packaged by an access node control protocol; the optical line terminal extracts the parameter configuration information packaged by the access node control protocol from the message; the optical line terminal packages the parameter configuration information packaged by the access node control protocol, the passive optical network transmission and collection layer information and the passive optical network physical layer information into a downlink frame to be sent to the optical network unit. The embodiment of the invention is mainly applied to the passive optical network access technology.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of management method, system of EPON, and a kind of optical line terminal.
Background technology
As shown in Figure 1, traditional cut-in convergent network mainly comprises: UE (User Equipment, subscriber equipment), RG (Residential Gateway, home gateway), AN (Access Node, access node), BNG equipment such as (Broadband Network Gateway, wideband network gateways).Wherein, user equipment (UE) is that the terminal equipment of visit miscellaneous service function is provided for the user, as provide business of networking PC, provide video communication service mediaphone, the set-top box (STB, Set Top Box) of IPTV business etc. is provided.Home gateway RG and user equipment (UE) interconnection form home network, and RG links to each other with AN by line attachment.AN provides various access waies for RG, as: digital subscriber line (DSL, Digital Subscriber Line) inserts, the light access of EPON (PON, Passive Optical Network) mode or the light access of active optical network mode etc.Various types of AN realize converging of customer flow, and (aggregation network) is connected to one or more BNG by aggregation networks.
In the PON access way, realize that the equipment of AN function is OLT (optical line terminal, optical line terminal) and ONU (optical network unit, optical network unit).Under this access way, pass through ANCP agreement (Access Node Control Protocol between BNG and the OLT, Access Node Control Protocol) communicates, and be to adopt OMCI agreement (ONU Management andControl Interface, ONU management and control interface) to communicate between OLT and the ONU.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: because the communication protocol between BNG and the OLT, between OLT and the ONU is different, when BNG manages ONU, with the message of ANCP protocol encapsulation, need be revised as between OLT and the ONU message between BNG and the OLT with the OMCI protocol encapsulation.Therefore, this has just caused the inflexible problem of the management of ONU.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of management method, system and optical line terminal of EPON, the flexibility when with raising optical network unit being managed.
The embodiment of the invention provides a kind of management method of EPON, comprising: optical line terminal receives the message that wideband network gateway sends, and this message comprises the parameter configuration message with the Access Node Control Protocol encapsulation; Optical line terminal extracts the parameter configuration message with the Access Node Control Protocol encapsulation from this message; Optical line terminal will be packaged into downlink frame with parameter configuration message, EPON transmission convergence layer information and the EPON physical layer information of Access Node Control Protocol encapsulation, send to optical network unit.
Correspondingly, the embodiment of the invention also provides a kind of management method of EPON, comprise: optical line terminal receives the uplink frame that optical network unit sends, and this uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; Optical line terminal extracts the state reporting message with the Access Node Control Protocol encapsulation from this uplink frame; Optical line terminal will send to wideband network gateway with the state reporting message of Access Node Control Protocol encapsulation.
Correspondingly, the embodiment of the invention also provides a kind of optical line terminal, comprising: receiving element, extraction unit, encapsulation unit and transmitting element;
Wherein, at down direction, receiving element is used to receive the message that wideband network gateway sends, and this message comprises the parameter configuration message with the Access Node Control Protocol encapsulation; Extraction unit is used for extracting the parameter configuration message that encapsulates with Access Node Control Protocol from the message that receives; Encapsulation unit is used for parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation are packaged into downlink frame; Transmitting element is used to send this downlink frame to optical network unit;
At up direction, receiving element is used to receive the uplink frame that optical network unit sends, and this uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; Extraction unit is used for extracting the state reporting message that encapsulates with Access Node Control Protocol from the uplink frame that receives; Transmitting element is used for the state reporting message with the Access Node Control Protocol encapsulation is sent to wideband network gateway.
Correspondingly, the embodiment of the invention also provides a kind of management system of EPON, comprising: wideband network gateway, optical line terminal and optical network unit;
At down direction, optical line terminal is used to receive the message that wideband network gateway sends, and this message comprises the parameter configuration message with the Access Node Control Protocol encapsulation; From this message, extract parameter configuration message with the Access Node Control Protocol encapsulation; To be packaged into downlink frame with parameter configuration message, EPON transmission convergence layer information and the EPON physical layer information of Access Node Control Protocol encapsulation, send to optical network unit;
At up direction, optical line terminal is used to receive the uplink frame that optical network unit sends, and this uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; From this uplink frame, extract state reporting message with the Access Node Control Protocol encapsulation; To send to wideband network gateway with the state reporting message of Access Node Control Protocol encapsulation.
By as can be seen above-mentioned, in the embodiment of the invention, utilize the ANCP agreement to carry out the mutual of information between optical line terminal and the Optical Network Terminal, thereby the communication protocol between they the two, and the communication protocol between optical line terminal and the wideband network gateway can be consistent.Thereby, utilize the embodiment of the invention can avoid in the prior art, because OLT and ONU, the inconsistent and inflexible problem of the configuration to ONU that causes of the communication protocol between OLT and the BNG has improved the flexibility when ONU managed.
Description of drawings
Fig. 1 is the composition schematic diagram of cut-in convergent network traditional in the prior art;
Fig. 2 is the schematic diagram of the management system of the embodiment of the invention one EPON;
Fig. 3 is the structure chart that each device protocol of the embodiment of the invention is realized functional block diagram and protocol stack;
Fig. 4 is the structure chart of the embodiment of the invention two optical line terminals;
Fig. 5 is the schematic diagram of the embodiment of the invention two optical line terminals;
Fig. 6 carries out the flow chart of parameter configuration to ONU by OLT for the embodiment of the invention three BNG;
Fig. 7 is the schematic diagram of the embodiment of the invention three ANCP protocol encapsulation ONU line attachment configuration datas;
Fig. 8 carries out flow chart that state report by OLT to BNG for the embodiment of the invention four ONU.
Embodiment
For solving in the prior art because OLT and ONU, the inconsistent and inflexible problem of the configuration to ONU that causes of the communication protocol between OLT and the BNG, the embodiment of the invention provides a kind of management method, system and a kind of optical line terminal of optical network unit.For the advantage of the technical scheme that makes the embodiment of the invention is clearer, the embodiment of the invention is further described in detail below in conjunction with accompanying drawing.
In following embodiment, be convenient and describe that we are called " down direction " with the communication direction of BNG-OLT-ONU, the communication direction of ONU-OLT-BNG is called " up direction ".
As shown in Figure 2, the management system of the embodiment of the invention one EPON comprises: wideband network gateway 201, optical line terminal 202 and optical network unit 203.
Because ANCP is principal and subordinate's control protocol, during the ANCP that sets up between OLT and ONU was connected, OLT was a controller, and ONU is a controlled device.In the ANCP that OLT and BNG set up was connected, OLT was a controlled device, and BNG is a controller.Each device protocol of the embodiment of the invention is realized functional block diagram and protocol stack as shown in Figure 3.
On down direction, wideband network gateway 201 is used for sending message to optical line terminal, and this message comprises the parameter configuration message with the Access Node Control Protocol encapsulation;
On up direction, optical network unit 203 is used for sending uplink frame to optical line terminal, and above-mentioned uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation;
Concrete, on down direction, wideband network gateway 201 is by the above-mentioned parameter configuration messages, and the relevant parameter of access interface on the configuration optical network unit 203 is controlled relevant parameter (multicast replication on the control optical network unit) as physical layer parameter, link layer parameter or multicast admission.
Above-mentioned parameter configuration message with the Access Node Control Protocol encapsulation can also comprise the configuration information of at least two optical network units; At this moment, optical line terminal 202 is resolved above-mentioned parameter configuration message with the Access Node Control Protocol encapsulation, obtains the configuration information of at least two optical network units; And configuration information, EPON transmission convergence layer information and the EPON physical layer information of each optical network unit be packaged into downlink frame, send to corresponding optical network unit, wherein, the configuration information of each optical network unit encapsulates with Access Node Control Protocol.
On up direction, optical network unit 203 is by above-mentioned state reporting message, to the state of wideband network gateway 201 report of user line attachments, so that wideband network gateway 201 is grasped the state on access line road in real time.
Before optical line terminal will send to wideband network gateway with the state reporting message of Access Node Control Protocol encapsulation, optical line terminal can also judge whether the state reporting message meets predetermined strategy, if meet, optical line terminal just sends this state reporting message.
The state reporting message with the Access Node Control Protocol encapsulation that optical line terminal 202 can also send two above optical network units merges, and the state reporting message after will merging sends to wideband network gateway, wherein, the state reporting message after the merging encapsulates with Access Node Control Protocol.
In the uplink frame that optical network unit 203 sends, can also comprise configuration response message with the Access Node Control Protocol encapsulation; Optical line terminal 202 extracts configuration response message from uplink frame, send to wideband network gateway 201.If optical line terminal 202 receives the configuration response message that two above optical network units send, then the configuration response message that two above optical network units are sent merges, configuration response message after the above-mentioned merging is sent to wideband network gateway, and the configuration response message after the above-mentioned merging encapsulates with Access Node Control Protocol.
In the present embodiment, utilize the ANCP agreement to carry out the mutual of information between optical line terminal and the Optical Network Terminal, thereby the communication protocol between they the two, and the communication protocol between optical line terminal and the wideband network gateway can be consistent, thereby avoid in the prior art, the inflexible problem of the configuration to ONU that causes owing to the communication protocol between OLT and ONU, OLT and the BNG is inconsistent has improved the flexibility when ONU managed.
Below in conjunction with Fig. 4 the concrete structure and the function corresponding thereof of described optical line terminal are done detailed description.
As shown in Figure 4, the embodiment of the invention two optical line terminals can comprise: receiving element 401, extraction unit 402, encapsulation unit 403 and transmitting element 404.
At down direction, receiving element 401 is used to receive the message that wideband network gateway sends, and this message comprises the parameter configuration message with the Access Node Control Protocol encapsulation; Extraction unit 402 is used for extracting the parameter configuration message that encapsulates with Access Node Control Protocol from the message that receives; Encapsulation unit 403 is used for parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation are packaged into downlink frame; Transmitting element 404 is used to send this downlink frame to optical network unit;
At up direction, receiving element 401 is used to receive the uplink frame that optical network unit sends, and this uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; Extraction unit 402 is used for extracting the state reporting message that encapsulates with Access Node Control Protocol from the uplink frame that receives; Transmitting element 404 is used for the state reporting message with the Access Node Control Protocol encapsulation is sent to wideband network gateway.
Owing to can comprise a plurality of optical network units in the EPON management system, therefore on down direction, the parameter configuration message portability in the message that BNG sends is to the configuration messages of a plurality of ONU.Therefore, for accurate configuration messages with each ONU sends to corresponding ONU, as shown in Figure 5, optical line terminal also comprises resolution unit 405.Resolution unit 405 is used to resolve above-mentioned parameter configuration message with the Access Node Control Protocol encapsulation, obtains the configuration information of two above optical network units.At this moment, encapsulation unit is packaged into downlink frame with configuration information, EPON transmission convergence layer information and the EPON physical layer information of each optical network unit, and wherein, the configuration information of each optical network unit encapsulates with Access Node Control Protocol.
Above-mentioned parameter configuration message with the Access Node Control Protocol encapsulation is by TLV (type lengthvalue, type, length, value) mode is organized, and can carry the configuration data of a plurality of line attachments, and every line attachment can have a plurality of different line attachment configuration datas.If concrete configuration object is a line attachment or logic line attachment, this line attachment or logic line attachment are described by line attachment ID (Access-Loop-Circuit-ID, line attachment sign) TLV.The coding of this line attachment ID comprises AN groove number (slot), port numbers (port) information, if the logic line attachment also will comprise VLAN or VPI/VCI information.Utilize line attachment ID TLV in the ANCP agreement institute transmission parameters configuration messages by parsing, promptly can locate concrete line attachment or logic line attachment.Promptly, just can determine above-mentioned at least two optical network units, obtain respectively and the corresponding configuration messages of above-mentioned at least two optical network units by resolving the line attachment sign type lengths values in the above-mentioned parameter configuration messages.
On up direction, optical line terminal also can be handled for the state reporting message that ONU initiatively sends according to predetermined strategy, and for example for the message of some fixed type, optical line terminal is just transmitted etc.Therefore, optical line terminal also can comprise:
Owing to can comprise a plurality of optical network units in the EPON management system, optical line terminal may be received the state reporting message with the Access Node Control Protocol encapsulation that a plurality of optical network units send, so optical line terminal also comprises:
Merge cells 407 is used at least two state reporting messages with the Access Node Control Protocol encapsulation are merged;
At this moment, the state reporting message with the Access Node Control Protocol encapsulation after transmitting element will merge sends to wideband network gateway.
Also may comprise configuration response message in the uplink frame that receiving element receives with the Access Node Control Protocol encapsulation, extraction unit extracts the configuration response message with the Access Node Control Protocol encapsulation from uplink frame, transmitting element will send to wideband network gateway with the configuration response message of Access Node Control Protocol encapsulation.If receive the configuration response message that at least two optical network units send with the Access Node Control Protocol encapsulation, merge cells merges at least two configuration response message with the Access Node Control Protocol encapsulation, and the configuration response message after transmitting element will merge sends to wideband network gateway.
In the present embodiment, utilize the ANCP agreement to carry out the mutual of information between optical line terminal and the Optical Network Terminal, thereby the communication protocol between they the two, and the communication protocol between optical line terminal and the wideband network gateway can be consistent, thereby avoid in the prior art, the inflexible problem of the configuration to ONU that causes owing to the communication protocol between OLT and ONU, OLT and the BNG is inconsistent has improved the flexibility when ONU managed.
Below respectively in conjunction with the embodiments three and embodiment four, the process of utilizing ANCP to carry out information interaction to optical network unit and optical line terminal describes.
As shown in Figure 6, embodiment three BNG carry out the method flow diagram of parameter configuration to ONU by OLT.Set up ANCP at BNG and OLT and be connected, BNG is the ANCP controller, and OLT is the ANCP controlled device.Set up ANCP and connect between OLT and ONU, OLT is the ANCP controller, and ONU is the ANCP controlled device.This method comprises the steps:
In this parameter configuration message, can carry the configuration information of an ONU, also can carry the configuration information of at least two ONU.
If carry the configuration information of at least two ONU in this parameter configuration message, OLT resolves the above-mentioned parameter configuration messages, obtains and the corresponding configuration messages of each optical network unit; As seen from Figure 7, the line attachment ID TLV by each ONU in the analytic parameter configuration messages can determine each purpose ONU, determines promptly also which ONU BNG need carry out parameter configuration to; At last, will form new configuration messages respectively with the corresponding configuration information of each purpose optical network unit by OLT with the ANCP protocol encapsulation.
After ONU receives downlink frame, carry out the relevant parameters configuration operation according to the parameter configuration message in the downlink frame.
After ONU executed the parameter configuration operation, ONU can send configuration response message to BNG.ONU sends uplink frame to OLT, and this uplink frame comprises configuration response message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; OLT will extract from uplink frame with the configuration response message of Access Node Control Protocol encapsulation, sends to BNG.
The configuration response message that OLT also can send a plurality of ONU that receive with the Access Node Control Protocol encapsulation, OLT merges the configuration response message that a plurality of ONU send, configuration response message after will merging then sends to BNG, wherein, the configuration response message after the merging encapsulates with Access Node Control Protocol.
As shown in Figure 8, embodiment four ONU carry out the method flow diagram that state reports by OLT to BNG.Set up ANCP at BNG and OLT and be connected, BNG is the ANCP controller, and OLT is the ANCP controlled device.Set up ANCP and connect between OLT and ONU, OLT is the ANCP controller, and ONU is the ANCP controlled device.This method comprises the steps:
Step 801, optical line terminal receive the uplink frame that optical network unit sends, and this uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; Step 802, optical line terminal extract the state reporting message with the Access Node Control Protocol encapsulation from this uplink frame;
Step 803, optical line terminal will send to wideband network gateway with the state reporting message of Access Node Control Protocol encapsulation.
Concrete, before step 803, also comprise:
Optical line terminal judges whether the state reporting message with the Access Node Control Protocol encapsulation meets predetermined strategy, if meet, optical line terminal sends state reporting message with the Access Node Control Protocol encapsulation to wideband network gateway.Can also be according to predetermined strategy, the state reporting message that ONU is sent suppresses, and promptly after receiving the state reporting message that ONU sends, if judge that message meets predetermined strategy, OLT will not transmit this message to BNG so yet.For example, described predetermined policy can be not to be transmitted certain type message, after OLT receives the message that ONU sends, if the type of stipulating in the type of described message and the predetermined policy is identical, then the message of this type is not transmitted.
The state reporting message that OLT also can send a plurality of ONU that receive merges, and the state reporting message after will merging then sends to BNG, and wherein, the state reporting message after the merging encapsulates with Access Node Control Protocol.
By embodiments of the invention as can be seen, because BNG and OLT, all adopt the ANCP agreement to communicate between OLT and the ONU, also be that agreement between them is consistent, thereby avoid in the prior art the inflexible problem of the configuration to ONU that causes owing to the communication protocol between OLT and ONU, OLT and the BNG is inconsistent.Therefore, the embodiment of the invention has improved the flexibility to ONU configuration and management.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (11)
1, a kind of management method of EPON is characterized in that, described method comprises:
Optical line terminal receives the message that wideband network gateway sends, and described message comprises the parameter configuration message with the Access Node Control Protocol encapsulation;
Described optical line terminal extracts described parameter configuration message with the Access Node Control Protocol encapsulation from described message;
Described optical line terminal is packaged into downlink frame with described parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation, sends to optical network unit.
2, the management method of EPON according to claim 1 is characterized in that, described parameter configuration message with the Access Node Control Protocol encapsulation has been carried the configuration information of at least two optical network units;
Described optical line terminal is packaged into downlink frame with configuration information, EPON transmission convergence layer information and the EPON physical layer information of each optical network unit, send to optical network unit, wherein, the configuration information of described each optical network unit encapsulates with Access Node Control Protocol.
3, a kind of management method of EPON is characterized in that, described method comprises:
Optical line terminal receives the uplink frame that optical network unit sends, and described uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation;
Described optical line terminal extracts described state reporting message with the Access Node Control Protocol encapsulation from described uplink frame;
Described optical line terminal sends to wideband network gateway with described state reporting message with the Access Node Control Protocol encapsulation.
4, the management method of EPON according to claim 3 is characterized in that, before described optical line terminal sends to wideband network gateway with described state reporting message with the Access Node Control Protocol encapsulation, also comprises:
Described optical line terminal judges whether described state reporting message with the Access Node Control Protocol encapsulation meets predetermined strategy, if meet, described optical line terminal sends the described state reporting message that encapsulates with Access Node Control Protocol to described wideband network gateway.
5, the management method of EPON according to claim 3 is characterized in that, described optical line terminal sends to wideband network gateway with described state reporting message with the Access Node Control Protocol encapsulation, specifically comprises:
Described optical line terminal merges at least two state reporting messages with the Access Node Control Protocol encapsulation;
The state reporting message with the Access Node Control Protocol encapsulation after described optical line terminal will merge sends to described wideband network gateway.
6, a kind of optical line terminal is characterized in that, comprising: receiving element, extraction unit, encapsulation unit and transmitting element;
Wherein, at down direction, described receiving element is used to receive the message that wideband network gateway sends, and described message comprises the parameter configuration message with the Access Node Control Protocol encapsulation;
Described extraction unit is used for extracting described parameter configuration message with the Access Node Control Protocol encapsulation from the message of described reception;
Described encapsulation unit is used for described parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation is packaged into downlink frame;
Described transmitting element is used to send described downlink frame to optical network unit;
At up direction, described receiving element is used to receive the uplink frame that described optical network unit sends, and described uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation;
Described extraction unit is used for extracting described state reporting message with the Access Node Control Protocol encapsulation from the uplink frame of described reception;
Described transmitting element is used for described state reporting message with the Access Node Control Protocol encapsulation is sent to described wideband network gateway.
7, optical line terminal according to claim 6 is characterized in that, described parameter configuration message with the Access Node Control Protocol encapsulation comprises the configuration information of at least two optical network units;
Described optical line terminal also comprises:
Resolution unit is used to resolve described parameter configuration message with the Access Node Control Protocol encapsulation, obtains the configuration information of at least two optical network units;
Described encapsulation unit, also be used for configuration information, EPON transmission convergence layer information and the EPON physical layer information of each optical network unit are packaged into downlink frame, wherein, the configuration information of described each optical network unit encapsulates with Access Node Control Protocol.
8, optical line terminal according to claim 6 is characterized in that, also comprises:
Judging unit, be used to judge whether described state reporting message with the Access Node Control Protocol encapsulation meets predetermined strategy, if meet, drive described transmitting element and send the described state reporting message that encapsulates with Access Node Control Protocol to described wideband network gateway.
9, optical line terminal according to claim 6 is characterized in that, also comprises:
Merge cells is used at least two state reporting messages with the Access Node Control Protocol encapsulation are merged;
Described transmitting element also is used for the state reporting message with the Access Node Control Protocol encapsulation after merging is sent to described wideband network gateway.
10, a kind of management system of EPON is characterized in that, described system comprises: wideband network gateway, optical line terminal and optical network unit; It is characterized in that,
At down direction, described optical line terminal is used to receive the message that described wideband network gateway sends, and described message comprises the parameter configuration message with the Access Node Control Protocol encapsulation; From described message, extract described parameter configuration message with the Access Node Control Protocol encapsulation; Described parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation is packaged into downlink frame, sends to described optical network unit;
At up direction, described optical line terminal, be used to receive the uplink frame that described optical network unit sends, described uplink frame comprises state reporting message, EPON transmission convergence layer information and the EPON physical layer information with the Access Node Control Protocol encapsulation; From described uplink frame, extract described state reporting message with the Access Node Control Protocol encapsulation; Described state reporting message with the Access Node Control Protocol encapsulation is sent to described wideband network gateway.
11, EPON management system according to claim 10 is characterized in that, described optical line terminal comprises: receiving element, extraction unit, encapsulation unit and transmitting element;
Wherein, at down direction, described receiving element is used to receive the message that described wideband network gateway sends;
Described extraction unit is used for extracting described parameter configuration message with the Access Node Control Protocol encapsulation from the message of described reception;
Described encapsulation unit is used for described parameter configuration message, EPON transmission convergence layer information and EPON physical layer information with the Access Node Control Protocol encapsulation is packaged into downlink frame;
Described transmitting element is used to send described downlink frame to described optical network unit;
At up direction, described receiving element is used to receive the uplink frame that described optical network unit sends;
Described extraction unit is used for extracting described state reporting message with the Access Node Control Protocol encapsulation from the uplink frame of described reception;
Described transmitting element is used for described state reporting message with the Access Node Control Protocol encapsulation is sent to described wideband network gateway.
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| CN101621399B (en) | 2011-12-07 |
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