CN101389147A

CN101389147A - Slave node data interconnecting device, method and system base on one point to several points network

Info

Publication number: CN101389147A
Application number: CNA2008101707796A
Authority: CN
Inventors: 谭培龙; 李宏宇
Original assignee: Shenzhen Huawei Communication Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2008-10-29
Filing date: 2008-10-29
Publication date: 2009-03-18
Anticipated expiration: 2028-10-29
Also published as: CN101389147B

Abstract

The embodiment provides a data inter-communication method, device and system for slave node based on one point-to-multiple points network. The method comprises obtaining data sent by the communication triggering slave node; obtaining destination address of the data from the obtained data; searching the logic link label corresponding to the destination address of the data in corresponding relation between the logic link label and the data address according to the obtained destination address of the data; sending obtained data to a destination logic link according to data destination address obtained by the search and corresponding logic link label. The invention overcomes the impact of the data intercommunication between nodes to the system in prior art, makes application scene return to flexibility of the Ethernet.

Description

A kind of based on point-to-point configuration from node data interworking unit, method and system

Technical field

The present invention relates to wide-band communication system, relate in particular in a kind of point-to-point configuration from carrying out device, the method and system of data interchange between node.

Background technology

Wide-band communication system mainly comprises point-to-point system and puts multiple spot (P2MP, PointtoMultipoint) system.Wherein, point-to-point system mainly is meant: in the system host node with single from being connected by the link of point-to-point physically between node, as digital subscriber line system (DSL, DigitalSubscriber Line).Point-to-multi-point system mainly is meant: in the system host node with a plurality of from being connected by a physically multiplexing link between node, as EPON (PON, Passive OpticalNetwork) system.

Fig. 1 is the structural representation of prior art mid point to multiple spot PON system.The PON system is by master node (OLT, Optical Line Termination), a plurality of from node (ONT, Optical NetworkTermination) and passive optical splitters form, wherein OLT is connected with passive optical splitters 102 by optical fiber 101, and passive optical splitters 102 is connected with a plurality of ONT by optical fiber 101.In this PON system, use same physical link between OLT and a plurality of ONT, therefore when OLT and a plurality of ONT carry out data interchange, need to solve multiple access access problem.In the practical application of PON system, often also need carry out data interchange between each ONT in the same PON system.

As shown in Figure 2, the structural representation of the system that forms for a plurality of PON system in the prior art.In order to improve the access user density of PON system, often upwards connect ether Switching Module 201, to insert a plurality of PON system by OLT.To the single system node device also is similar situation, and a plurality of single system node devices further converge interconnection by the ether switch of last company.

In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: under the group-network construction of prior art 2, different ether service traffics between node (as the ONT the PON) are wanted intercommunication under the same P2MP system, if these ether service traffics are not beaten virtual local area network tags (Virtual Local Area Network Tag VLAN Tag) or in same VLAN (Virtual Local Area Network VLAN) to host node, can in converging the ether Switching Module of interconnection, be dropped, thus can't intercommunication.In system as depicted in figs. 1 and 2, in order to carry out data interchange between the different ONT that make same PON system, the data that are up to OLT from ONT can be marked mutually different virtual local area network tags (VLAN Tag), if three layers of processing module are arranged among the OLT, then can directly realize the data interchange between the ONT; If there are not three layers of processing module among the OLT, need carry out the data interchange between the ONT to three layers of processing node of upstream.The problem of doing existence like this is: VLAN planning and application scenarios have been proposed constraint and restriction, changed the use freedom of former Ethernet.

Summary of the invention

In order to overcome defective of the prior art, the invention provides in a kind of point-to-point configuration from carrying out device, the method and system of data interchange between node, make application scenarios return the flexibility of Ethernet, adapt to the demand of operator to plurality of application scenes.

On the one hand, the invention provides a kind of based on point-to-point configuration from the node data interoperability methods, this method comprises: obtaining communication is initiated the data sent from node; From the described data of obtaining, obtain the destination address of data; According to the destination address of the data of described acquisition, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data; According to the described LLID that finds the destination address correspondence of described data the described data of obtaining are sent to the purpose logical links.

On the other hand, the invention provides a kind of based on point-to-point configuration from the node data interworking unit, it is characterized in that this device comprises: data capture unit is used for obtaining communication and initiates the data sent from node; The destination address acquiring unit is used for from the destination address of the described data acquisition data of obtaining; LLID and memory manage unit, the corresponding relation that is used for service logic chain line and data address, and, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data according to the destination address of the data of described acquisition; Data transmission unit sends to the purpose logical links according to the described LLID that finds the destination address correspondence of described data with the described data of obtaining.

The present invention also provide a kind of based on point-to-point configuration from the node data intercommunicating system, this system comprises: host node and at least two are from node, wherein, at least one is initiated from node for communication from node, described host node comprises: data capture unit is used for the data that the obtaining communication initiation is sent from node; The destination address acquiring unit is used for from the destination address of the described data acquisition data of obtaining; LLID and memory manage unit, the corresponding relation that is used for service logic chain line and data address, and, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data according to the destination address of the data of described acquisition; Data transmission unit, according to described find described number according to the LLID of destination address correspondence with the described data forwarding of obtaining to the purpose logical links.Described communication is initiated to comprise from node: the upstream data transmitting element is used to send the data that communication is sent from node.

Technique scheme has following advantage or beneficial effect:

The invention provides in a kind of point-to-point configuration from carrying out device, the method and system of data interchange between node, overcome constraint and the restriction of prior art, make the flexibility of application scenarios recurrence Ethernet VLAN planning and application scenarios.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of prior art mid point to multiple spot PON system.

Fig. 2 is the structural representation of the system that a plurality of PON system forms in the prior art.

Fig. 3 is the apparatus structure block diagram of the embodiment of the invention.

Fig. 4 is the method flow diagram of the embodiment of the invention.

Fig. 5 is the structural representation of embodiment of the invention PON system.

Fig. 6 is the structured flowchart from the node data intercommunicating system based on point-to-point configuration of the embodiment of the invention.

Fig. 7 is data uplink of the present invention and descending schematic diagram.

Fig. 8 is that the data search of embodiment of the invention PON system sends schematic diagram.

Fig. 9 is the data interchange process schematic diagram between ONT of the present invention.

Figure 10 is the mapping relations figure of GLAN ID of the present invention and GEM Port ID1.

Figure 11 comprises transmitting of purpose MAC among the GLAN of the present invention.

Figure 12 is the constructive process figure of GLAN of the present invention.

Shown in Figure 13, be the flow chart of data forwarding of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

Embodiment one

As shown in Figure 3, be the apparatus structure block diagram of the embodiment of the invention.This device is based on point-to-point configuration to carry out from internodal data interchange, and with reference to figure 3, this device comprises: data capture unit 301, destination address acquiring unit 302, LLID and memory manage unit 303, data transmission unit 304.Data capture unit 301 is used for the data that the obtaining communication initiation is sent from node; Destination address acquiring unit 302 is used for obtaining from the described data of obtaining the destination address of data; LLID and memory manage unit 303 are used for the corresponding relation of service logic chain line and data address, according to the destination address of the data of described acquisition, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data; Data transmission unit 304 sends to the purpose logical links according to the described LLID that finds the destination address correspondence of described data with the described data of obtaining.

The beneficial effect of the embodiment of the invention: adopt embodiments of the invention can realize a little in the system of multiple spot intercommunication from data between the node, overcome constraint and the restriction of prior art, made application scenarios return the flexibility of Ethernet VLAN planning and application scenarios.

Embodiment two

On the basis of embodiment one, described data transmission unit also is used for: as if the corresponding LLID of destination address that does not find described data from the LLID and the corresponding relation of data address, the described data forwarding of obtaining is given the up logical links of host node; And, if from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, broadcast data in all logical links except the logical links that sends described data.

Above-mentioned LLID and memory manage unit 303 specifically comprise: the corresponding relation study module, be used for initiating the chain line and the data address of the point-to-multi-point system of the data sent from node, set up the corresponding relation of described LLID and data address according to each communication; Memory module is used to store the corresponding relation of the described data of obtaining and described LLID and data address.

Above-mentioned point-to-point configuration can be that the above-mentioned LLID of gigabit passive optical network is the gigabit passive optical network encapsulation port-mark.Device is applied to the gigabit passive optical network encapsulation local area network (LAN), this gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID, and described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.It is the source MAC of Ethernet data that described communication is initiated from the address of node, and the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.

Adopting GEM (G-PON Encapsulation Method, passive optical network packaging method) in Feng Zhuan the system, with one group of gigabit passive optical network encapsulation method local area network (LAN) (G-PON Encapsulation MethodLocal Area Network GEM LAN) expression can intercommunication GEM port (Port), by GLAN ID (GEM LAN ID) but identify the gigabit passive optical network encapsulation port (GEM Port) of this group intercommunication.Can further include the up link of this system in the middle of the GLAN.

GEM LAN is applicable to the system that all adopt the GEM technology, comprises (gigabit passive optical network) GPON system and PON system.In OLT, initiate the data that ONT sends by data capture unit 301 obtaining communications, utilize the system logic chain line and the ethernet source MAC Address corresponding relation of the data that the corresponding relation study module sends from node communication to learn, its learning process is as follows: whenever OLT receives communication when initiating packet that ONT sends, with the ethernet source MAC Address in this packet of study and the corresponding relation of system logic chain line, learning outcome is charged to system logic chain line-ethernet mac address transmit, by the corresponding relation of the memory module described data of obtaining of storage and described LLID and data address; Destination address acquiring unit 302 is used for obtaining from the described data of obtaining the destination address of data; The data that 303 couples of ONT of LLID and memory manage unit come, with its Ethernet target MAC (Media Access Control) address is that index search system logic chain line-ethernet mac address is transmitted, the LLID of the destination address correspondence of the data during data transmission unit 304 is transmitted according to the system logic chain line-ethernet mac address that finds sends to the purpose logical links with the described data of obtaining, and the packet after will encapsulating sends to the purpose logical links, and packet arrives corresponding to node by the purpose logical circuit; If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then the described data forwarding of obtaining is given the up logical links of host node, also can be in all logical links except the logical links that sends described data broadcast data.

Embodiment three

As shown in Figure 4, be the method flow diagram of the embodiment of the invention.The inventive method may further comprise the steps:

Step 401: the data that the obtaining communication initiation is sent from node, these data comprise the destination address of data;

Step 402: the destination address that from the described data of obtaining, obtains data;

Step 403: according to the destination address of the data of described acquisition, be index, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data with its Ethernet target MAC (Media Access Control) address;

In the process of implementation step 403, if from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then the described data forwarding of obtaining is given the up logical links of host node, perhaps broadcast data in all logical links except the logical links of described transmission data.

LLID and the corresponding relation of data address are each communicate by letter the point-to-multi-point system chain line of initiating the data sent from node or up LLID and data address foundation by study.

Step 404: the described data of obtaining are sent to the purpose logical links according to the described LLID that finds the destination address correspondence of described data.

Embodiment four

On the basis of embodiment three, this method is based on point-to-point configuration, and this point-to-point configuration can be gigabit passive optical network.

This method is applied to the gigabit passive optical network encapsulation local area network (LAN), and above-mentioned LLID is the gigabit passive optical network encapsulation port-mark.This gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID, and described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.It is the source MAC of Ethernet data that described communication is initiated from the address of node, and the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.

With the PON system is the specific embodiment of example explanation the inventive method.Fig. 5 is the structural representation of embodiment of the invention PON system.

This point-to-multi-point system is the PON system, links to each other with Ethernet switch structure 501, and this PON system is made up of OLT500, a plurality of ONT500 '.OLT can be that switch, router or business provide platform, can also carry out allocated bandwidth, network security and administration configuration at different user, and it provides the optical fiber interface towards passive optical-fiber network (PON interface).Optical splitter is used for connecting OLT500 and ONT500 ', and its function is the distribution downlink data and concentrates upstream data.According to the difference of ONT500 ' in the present position, the application model of PON system can be divided into that Fiber To The Curb (FTTC), Fiber To The Building (FTTB), Fiber-To-The-Office (FTTO) and fiber-to-the-home polytypes such as (FTTH).In the FTTC structure, ONT500 ' is placed on the junction box limit of roadside or electric pole; In the FTTB structure, ONT500 ' directly is put in the building, can adopt modes such as ADSL, Cable, LAN to insert in the user family after Fiber To The Building; FTTO and FTTH structure all are provided with passive optical splitters in the roadside, and ONT500 ' are put in user's the office or family.After OLT500 started, it can the periodic information such as time slot that the broadcasting permission inserts on this OLT500 port.ONT500 ' is according to the permission access information of OLT500 broadcasting, initiatively initiate register requirement, OLT500 is by the authentication to ONT500 ', allow ONT500 ' access, and give the unique LLID (being LLID among the EPON, is GEM Port-ID among the GPON) of this OLT port of ONT500 ' distribution of request registration.

Introduce descending (from OLT to ONT) and up (from ONT to OLT) process of data below respectively.As shown in Figure 7, be data uplink of the present invention and descending schematic diagram.In the data downstream direction, OLT adopts broadcast mode, is assigned to all ONT unit on the PON by the 1:N optical splitter in the Optical Distribution Network.Packet from OLT to a plurality of ONT with broadcast type when descending, that adopt is time-division multiplex technology (TDM), LLID or GEM Port-ID that distribute, specific ONT when comprising the front registration in the encapsulation of packet outside, this sign shows that this packet is to unique one among the ONT (ONT1, ONT2, ONT3......ONTn).The partial data bag can be to all ONT or special one group of ONT, in Fig. 7, when packet arrives the passive optical splitters position, is divided into three groups of independently signals, and each group signal is transferred to all ONT signals.When packet was transferred to one of them ONT, this ONT received the packet corresponding with it according to the LLID that distributes to it or the GEM Port-ID of OLT port, will be transferred to the data packet discarding of other ONT.As shown in Figure 7, ONT1 receives three groups of

packets

1,2,3, receives only packet 1, and sends to terminal use 1 with 1, and

packet

2 and 3 is abandoned.

In the data uplink direction, be coupled to same optical fiber by the 1:N passive optical splitters in the Optical Distribution Network without interfering with each other from the multiple business information of each ONT, finally deliver to the OLT receiving terminal.During data uplink, adopt time division multiple access access technology (TDMA), divide time slot to transmit uplink traffic to ONT.After ONT succeeded in registration, OLT can distribute specific bandwidth to ONT according to the configuration of system, and when adopting dynamic bandwidth to adjust, OLT can distribute bandwidth for dynamically each ONT according to the status report of designated bandwidth allocation strategy and each ONT.Bandwidth is for the PON aspect, and what can transmit the basic time slot of data exactly.Below an OLT port (PON port), clock is a strict synchronism between all ONT and the OLTPON port, each ONT be merely able to OLT to he distribute the time engrave beginning, with the slot length transmission data of distributing to it.By time slot allocation and delay compensation, when the data-signal of guaranteeing a plurality of ONT was coupled to an optical fiber, the uplink packet of each ONT can not interfere with each other.As shown in Figure 7, upwards transmit by time slot 1, time slot 2 and time slot 3 respectively from ONT1, ONT2 and the up data of ONT3, and each time slot is spaced from each other.

Can also adopt wavelength division multiplexing (WDM) technology between ONT and the OLT, be OLT with each ONT between adopt different wavelength to set up point-to-point communication link, perhaps OLT sends downlink data to ONT and adopts broadcast mode, and ONT each ONT when OLT sends upstream data adopts different wavelength.Be so-called WDM PON or NG-PON technology.

Here said PON system logic chain line promptly is meant the LLID or the GEM Port-ID of data transmission channel between OLT and ONT, and whether ONT is this ONT according to the destination of this sign judgment data bag.With source chain line on the up data markers from ONT to OLT, with purpose chain line on the descending packet meeting mark from OLT to ONT.

Referring again to Fig. 5, among the OLT, obtaining communication is initiated the data that ONT sends, and obtains the destination address of data from the described data of obtaining.The PON system logic chain line and the ethernet source MAC Address corresponding relation of the packet that point-to-multi-point system chain line-502 couples of OLT of ether MAC Address corresponding relation study module are up are learnt, its learning process is as follows: whenever OLT receives communication when initiating packet that ONT sends, with the ethernet source MAC Address in this packet of study and the corresponding relation of PON system logic chain line, learning outcome is charged to PON system logic chain line-ethernet mac address transmit 503.When transmitting packet, the packet that LLID and memory manage unit come ONT, with its Ethernet target MAC (Media Access Control) address is index, utilizing target MAC (Media Access Control) address to search module 504 searches PON system logic chain line-ethernet mac address and transmits, if find the LLID of the destination address correspondence of data, then transfer to data interchange forwarding module 505 this packet is encapsulated with the PON system logic chain line that finds, and the packet after will encapsulating sends to the purpose logical links by data interchange forwarding module between ONT.If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then the described data forwarding of obtaining is given the up logical links of host node, perhaps broadcast data in all logical links except the logical links that sends described data.The data search that is illustrated in figure 8 as embodiment of the invention PON system sends schematic diagram.

Data interchange process between the ONT as shown in Figure 9, Fig. 9 is the data interchange process schematic diagram between ONT of the present invention.Each packet all exists corresponding MAC Address and sign, and is as shown in table 1.Suppose to want to realize the data interchange between ONT1 and the ONT2, detailed process is as follows: ONT1 sends packet 1 to OLT, packet 1 comprises MAC Address 1 and MAC Address 2, MAC Address 1 is the ethernet source MAC Address of packet 1, sign 1 is the PON LLID corresponding with ethernet source MAC Address 1, and address 2 is Ethernet target MAC (Media Access Control) address (MAC Address of packet 2); The encapsulation of PON LLID among the OLT-ethernet mac address corresponding relation study module learning data bag 1 outside the corresponding relation of chain line 1 and ethernet source MAC Address 1, learning outcome is charged to PON LLID-ethernet mac address transmits; LLID and memory manage unit are that index search PON LLID-ethernet mac address is transmitted with the Ethernet target MAC (Media Access Control) address, to find MAC Address 2 and corresponding identification 2 thereof this moment, the PON LLID (sign 2) that packet 1 usefulness of ONT1 is found by data interchange forwarding module between ONT encapsulates, and transmit this packet to sign 2 logical links of ONT2, thereby ONT2 can receive packet.

Can realize that similarly ONT2 sends the data forwarding of data to ONT1.Like this, just realized the data interchange between the ONT.

Table 1

LLID	MAC Address
LLID	MAC Address	Sign 1	MAC Address 1
Sign 2	MAC Address 2	Sign 1	MAC Address 1
Sign 2	MAC Address 2	Sign 3	MAC Address 3
Up link	MAC Address	Sign 3	MAC Address 3	4

With the GPON system is the specific embodiment of example explanation the inventive method.

GEM Port ID is described " LLID " in the GPON system.The constructive process of GLAN is as follows: the ONT1201 that disposes GLAN ID and comprise on OLT; OLT distributes GEM Port ID1202 for ONT automatically, and sets up mapping relations with GLAN ID, and Figure 10 is the mapping relations figure of GLAN ID of the present invention and GEM Port ID1.Figure 12 is the constructive process figure of GLAN of the present invention, and OLT and ONT consult GEM Port ID1203 automatically; OLT adds the GEM Port ID that generates in the list item of GLAN 1204.A GEM Port can only belong to a GLAN, and can there be a plurality of GLAN in a PON system.

Can set up the GLAN that only comprises two GEM Port, not need other parameter in the time of data forwarding, just go out GEM Port ID, just data directly can be transmitted, as the GLAN among Figure 10 5 according to what go into that GEM Port ID finds same GLAN.E-Line business for point-to-point can adopt this GLAN.

For the GLAN that comprises two above GEM Port, need the study mechanism of MAC Address in the time of data forwarding, and purpose MAC participates in the process of tabling look-up of forwarding.That need to set up comprises transmitting of purpose MAC, and Figure 11 comprises transmitting of purpose MAC among the GLAN of the present invention.Wherein backhaul represents uplink port.

The flow chart of data forwarding is the flow chart of data forwarding of the present invention as shown in figure 13.Receive Ethernet data 1301 from GEMPort or up going port; The source MAC of learning data adds to and transmits 1302; To go into GEM Port ID is that index search transmits 1303; Judge whether to find corresponding GLAN ID1304; Transfer other if not to and handle 1305; If find out GEM Port ID1306 according to GLAN ID and purpose MAC; Judge whether to find the corresponding GEM Port ID1307 that goes out; If forward the data to up going port or go out GEM Port1308; If not, will be divided into two kinds of situations: can forward the data to all GEM Port and up going ports that this GLAN comprises, (i.e. broadcasting) 1309 also can transmit 1310 with the upstream processing node of data except the GEM Port of source.

Concrete data forwarding flow process for example.OLT is that 203 GEM Port receives that source MAC is that 00E0FC010001, purpose MAC are the data of 00E0FC010002 from ID.According to source GEM Port ID203, searching its GLAN ID is 6, and finding out GEM ID according to GLAN ID6 and purpose MAC 00E0FC010002 again is 204, and it is 204 GEM Port that OLT forwards the data to ID.

Also can set up the GLAN that only comprises two GEM Port, do not need to support the study of MAC Address, the parameter that does not also need other in the time of data forwarding, just go out GEM Port ID according to what go into that GEM Port ID finds same GLAN, just data directly can be transmitted, as the GLAN5 among Figure 10.E-Line business for point-to-point can adopt this GLAN.

Embodiment five

Fig. 6 is the structured flowchart from the node data intercommunicating system based on point-to-point configuration of the embodiment of the invention.This system comprises: host node and at least two are from node, wherein, at least one initiates to comprise from this host node 500 of node for communication from node: data capture unit 301, destination address acquiring unit 302, LLID and memory manage unit 303, data transmission unit 304.Data capture unit is used for the data that the obtaining communication initiation is sent from node, and the data that storage is obtained are also learnt LLID and the corresponding relation of data address; The destination address acquiring unit is used for obtaining from the described data of obtaining the destination address of data; LLID and memory manage unit are used for the corresponding relation of service logic chain line and data address, according to the destination address of the data of described acquisition, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data; Data transmission unit sends to the purpose logical links according to the described LLID that finds the destination address correspondence of described data with the described data of obtaining, and realizes the intercommunication from data between node.Described from node 500 ' comprising: upstream data transmitting element 601 is used to send communication and initiates the data sent from node.

Embodiment six

On the basis of embodiment five, described data transmission unit also is used for: as if the corresponding LLID of destination address that does not find described data from the LLID and the corresponding relation of data address, the described data forwarding of obtaining is given the up logical links of host node; And, if from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, broadcast data in all logical links except the logical links that sends described data.

Above-mentioned point-to-point configuration can be a gigabit passive optical network, and above-mentioned LLID is the gigabit passive optical network encapsulation port-mark.System applies is in the gigabit passive optical network encapsulation local area network (LAN), this gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID, and described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.It is the source MAC of Ethernet data that described communication is initiated from the address of node, and the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.

GEM LAN is applicable to the system that all adopt the GEM technology, comprises GPON system and PON system.In ONT, upstream data transmitting element 601 data of initiating to send from node of will communicating by letter send to the OLT.In OLT, initiate the data that ONT sends by data capture unit 301 obtaining communications, utilize the corresponding relation study module that the system logic chain line and the ethernet source MAC Address corresponding relation of OLT upstream data are learnt, its learning process is as follows: whenever OLT receives communication when initiating packet that ONT sends, with the ethernet source MAC Address in this packet of study and the corresponding relation of system logic chain line, learning outcome is charged to system logic chain line-ethernet mac address transmit, by the corresponding relation of the memory module described data of obtaining of storage and described LLID and data address; Destination address acquiring unit 302 is used for obtaining from the described data of obtaining the destination address of data; The data that 303 couples of ONT of LLID and memory manage unit come, with its Ethernet target MAC (Media Access Control) address is that index search system logic chain line-ethernet mac address is transmitted, the LLID of the destination address correspondence of the data during data transmission unit 304 is transmitted according to the system logic chain line-ethernet mac address that finds sends to the purpose logical links with the described data of obtaining, and the packet after will encapsulating sends to the purpose logical links, and packet arrives corresponding to node by the purpose logical circuit; If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then the described data forwarding of obtaining is given the up logical links of host node, also can be in all logical links except the logical links that sends described data broadcast data.

The beneficial effect of the embodiment of the invention: overcome constraint and the restriction of prior art, made application scenarios return the flexibility of Ethernet to VLAN planning and application scenarios.

Claims

One kind based on point-to-point configuration from the node data interoperability methods, it is characterized in that described method comprises:

The data that the obtaining communication initiation is sent from node;

From the described data of obtaining, obtain the destination address of data;

According to the destination address of the data of described acquisition, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data;

According to the described LLID that finds the destination address correspondence of described data the described data of obtaining are sent to the purpose logical links.
2. the method for claim 1, it is characterized in that, if from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then with the up logical links of the described data forwarding of obtaining to host node.
3. the method for claim 1, it is characterized in that, if from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, then broadcast data in all logical links except the logical links that sends described data.
4. the method for claim 1, it is characterized in that described LLID and the corresponding relation of data address are each communicate by letter the point-to-multi-point system chain line of initiating the data sent from node or up LLID and data address foundation by study.
5. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that described point-to-point configuration is a gigabit passive optical network.
6. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that described LLID is the gigabit passive optical network encapsulation port-mark.
7. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that described method is applied to the gigabit passive optical network encapsulation local area network (LAN).
8. method as claimed in claim 7, it is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, and every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID.
9. method as claimed in claim 7 is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.
10. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that it is the source MAC of Ethernet data that described communication is initiated from the address of node, the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.
11. one kind based on point-to-point configuration from the node data interworking unit, it is characterized in that described device comprises:

Data capture unit is used for the data that the obtaining communication initiation is sent from node;

The destination address acquiring unit is used for from the destination address of the described data acquisition data of obtaining;

LLID and memory manage unit, the corresponding relation that is used for service logic chain line and data address, and, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data according to the destination address of the data of described acquisition;

Data transmission unit sends to the purpose logical links according to the described LLID that finds the destination address correspondence of described data with the described data of obtaining.
12. device as claimed in claim 11 is characterized in that, described data transmission unit also is used for:

If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, with the up logical links of the described data forwarding of obtaining to host node; And

If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, broadcast data in all logical links except the logical links that sends described data.
13. device as claimed in claim 11 is characterized in that, described LLID and memory manage unit comprise:

The corresponding relation study module is used for initiating according to each communication chain line or the up LLID and the data address of the point-to-multi-point system of the data sent from node, sets up the corresponding relation of described LLID and data address;

Memory module is used to store the corresponding relation of the described data of obtaining and described LLID and data address.
14., it is characterized in that described point-to-point configuration is a gigabit passive optical network as claim 11 or 12 or 13 described devices.
15., it is characterized in that described LLID is the gigabit passive optical network encapsulation port-mark as claim 11 or 12 or 13 described devices.
16., it is characterized in that described device is applied to the gigabit passive optical network encapsulation local area network (LAN) as claim 11 or 12 or 13 described devices.
17. device as claimed in claim 16, it is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, and every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID.
18. device as claimed in claim 16 is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.
19., it is characterized in that it is the source MAC of Ethernet data that described communication is initiated from the address of node as claim 11 or 12 or 13 described devices, the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.
20. one kind based on point-to-point configuration from the node data intercommunicating system, described system comprises: host node and at least two are from node, wherein, at least one initiates to it is characterized in that from node for communication from node,

Described host node comprises: data capture unit is used for the data that the obtaining communication initiation is sent from node;

The destination address acquiring unit is used for from the destination address of the described data acquisition data of obtaining;

LLID and memory manage unit, the corresponding relation that is used for service logic chain line and data address, and, from the corresponding relation of LLID and data address, search the corresponding LLID of destination address of described data according to the destination address of the data of described acquisition;

Data transmission unit, according to the LLID of the described destination address correspondence that finds described data with the described data forwarding of obtaining to the purpose logical links;

Described communication is initiated to comprise from node: the upstream data transmitting element is used to send the data that communication is sent from node.
21. system as claimed in claim 20 is characterized in that, described data transmission unit also is used for:

If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, with the up logical links of the described data forwarding of obtaining to host node; And

If from the corresponding relation of LLID and data address, do not find the corresponding LLID of destination address of described data, broadcast data in all logical links except the logical links that sends described data.
22. system as claimed in claim 20 is characterized in that, described LLID and memory manage unit comprise:

The corresponding relation study module is used for initiating according to each communication chain line or the up LLID and the data address of the point-to-multi-point system of the data sent from node, sets up the corresponding relation of described LLID and data address;

Memory module is used to store the corresponding relation of the described data of obtaining and described LLID and data address.
23., it is characterized in that described point-to-point configuration is a gigabit passive optical network as claim 20 or 21 or 22 described systems.
24., it is characterized in that described LLID is the gigabit passive optical network encapsulation port-mark as claim 20 or 21 or 22 described systems.
25., it is characterized in that described system applies is in the gigabit passive optical network encapsulation local area network (LAN) as claim 20 or 21 or 22 described systems.
26. system as claimed in claim 25, it is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) constitutes by the host node of one group of intercommunication and from the logical links between the node, and every group of gigabit passive optical network encapsulation local area network (LAN) possesses unique LLID.
27. system as claimed in claim 25 is characterized in that, described gigabit passive optical network encapsulation local area network (LAN) comprises the up logical links of host node.
28., it is characterized in that it is the source MAC of Ethernet data that described communication is initiated from the address of node as claim 20 or 21 or 22 described systems, the destination address of described data is the target MAC (Media Access Control) address of Ethernet data.