CN101102273A - Broadband access and broadband access method - Google Patents
Broadband access and broadband access method Download PDFInfo
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- CN101102273A CN101102273A CNA2007101193548A CN200710119354A CN101102273A CN 101102273 A CN101102273 A CN 101102273A CN A2007101193548 A CNA2007101193548 A CN A2007101193548A CN 200710119354 A CN200710119354 A CN 200710119354A CN 101102273 A CN101102273 A CN 101102273A
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Abstract
The wideband access device comprises a transceiver at user side, a service identification unit, a service mapping unit, and a transceiver at network side. The invention also provides a wideband access method comprising: determining the service provided by each link; identifying the service carried by service message received by the link at user side; according to service carried by the identified service message, establishing the mapping relation between the user side link and the network side link; according to the mapping relation, relaying the service message from user side link to the network side link; relaying the service message from network side link to the user side link.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of broadband access equipment and broad band access method.
Background technology
The framework of broadband access network comprises following a few part at present: the user network, access node (AN, Access Node), aggregation networks and the wideband network gateway (BNG, BroadbandNetwork Gateway) that with the home gateway are core.Wherein, home gateway also can be called ustomer premises access equipment (CPE, CustomerPremises Equipment); Access node is finished the multi-form access of user, as being optical line terminal (OLT, Optical Line Terminal) of DSL couple in multiplexer (DSLAM, DSL Access Multiplex) and CMTS etc.; Aggregation networks is finished the function of convergence and exchange; But wideband network gateway is meant application bandwidth and service quality (QoS, Quality of Service) Ce Lve Internet Protocol (IP, Internet Protocol) edge router, as Broadband Remote Access Server (BRAS, Broadband Remote Access Server) and business router etc.
Along with developing rapidly of broadband access network, access node is just becoming the multi-service linkage unit based on Ethernet.Fig. 1 shows the typical networking diagram of broadband access network, wherein, various user terminals are connected to home gateway 108, and home gateway 108 is connected to access node 110 by link 20, and access node 110 is connected on a plurality of wideband network gateways by link 40,60 and 80.User's miscellaneous service, insert as Internet, IPTV (IPTV, Internet Protocol Television), IP phone (VoIP, Voice over IP) etc. business offers the user by various terminals, various terminals are connected to access node 110 by home gateway 108 again, access node 110 is connected on the different wideband network gateways that different business is provided, access node 110 shown in Fig. 1 can be DSLAM, wideband network gateway BNG120 is used to provide the IPTV business, wideband network gateway BNG140 is used to provide Broadband Remote Access Server (BRAS) business, and wideband network gateway BNG160 is used to provide IP phone (VoIP) business.
Because the network side of access node is connecting the different B NG that different business is provided, access node should be distinguished the business that the user asks when receiving the service message of user side, and transmits user's service message to the BNG that corresponding service is provided of network side.Access node all is based on two layers at present, and promptly the recognition technology of link layer lacks the recognition capability to (the OSI architecture comprises network layer, transport layer, session layer, presentation layer and application layer more than two layers) more than two layers.Get in touch for correct the setting up with different B GN of terminal that different business will be provided, access node uses static configuration information, disposes two layers of mapping relations of its user side link and network side link and sets up described contact.Such as, come the following content of static configuration respectively by network management system: several user's VLAN (VLAN of user side, and the mapping relations of configure user VLAN and service VLAN VirtualLocal Area Network) and several service VLAN of corresponding priority level, network side and corresponding priority level.Connect access node and the user terminal that corresponding service is provided by user vlan, connect access node and the wideband network gateway of corresponding service is provided by service VLAN, thereby the link of the link of setting up the user terminal that a certain business is provided and the network side BNG of the same business of realization is unique corresponding.Like this, when receiving user's service message, according to corresponding relation, directly carry out two layers of forwarding between this user vlan and service VLAN, the service message that user terminal is sent is transferred on the wideband network gateway that corresponding business is provided.The simplest situation of this mode is shone upon and is realized by setting up static port, can also realize similar static mappings by the mode of VLAN stacking.
The solution that provides above can only be applicable to the situation that a business is provided in the user side link, i.e. the situation of a corresponding business side link of user side link.When a plurality of business is provided in a user side link, promptly during the situation of the corresponding a plurality of business side links of user side link, such as, when a user used same broadband access carrying IP phone (VoIP business) in send and receive e-mail (Internet access service), aforesaid way can not be suitable for.This be because, when using Email (Internet access service), access point apparatus has been set up the link connection of this user side link to BRAS (the Internet access service is provided), the service message that therefore user's broadband access can be carried IP phone also sends to the link of BRAS (the Internet access service is provided), cause the business of broadband access carrying IP phone not implement, even also can influence the use of user Email (Internet access service).
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of broadband access equipment and cut-in method, to realize that broadband access equipment provides multiple services access.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of broadband access equipment comprises:
Reception/the transmitting element of user side is used for the service message by its link reception or transmission broadband access equipment user side;
The traffic identification unit links to each other with the reception/transmitting element of user side, is used to identify the service message institute loaded service information that user side reception/transmitting element receives by its link;
Professional map unit, link to each other with the reception/transmitting element of traffic identification unit, network side and the reception/transmitting element of user side, be used for the service message that the traffic identification unit identifies is sent to the link of the reception/transmitting element of the network side that corresponding service is provided, and in the future the service message of the described link of reception/transmitting element of automatic network side sends on the described link of reception/transmitting element of user side;
Reception/the transmitting element of network side is used for the service message by its link reception or transmission broadband access equipment network side.
The invention also discloses a kind of broad band access method, comprising:
A, determine the business that each bar link of network side is provided;
B, identify the service message institute loaded service that the user side link receives;
C, according to the described service message institute bearer service that identifies, set up described user side link and the mapping relations of corresponding professional network side link be provided;
D, the described mapping relations of foundation are forwarded to the user side service message on the corresponding network side link, and the service message of automatic network sidelinks is forwarded on the corresponding user side link in the future.
Wherein, the step of the business that each bar link of the described definite network side of steps A is provided comprises: the configuration information of the business that each bar link of the network side of storing according to reading is supported, determine the business that each bar link of network side is provided.
The step of the business that each bar link of the described definite network side of steps A is provided comprises: determine the business that each bar link of network side is provided by adopting protocol dynamic ground.Wherein, described agreement comprises: the scope of business agreement.
In the such scheme, step B is described to be identified the service message institute loaded service step that the user side link receives and comprises: identify the service message institute loaded service that the user side link receives by the protocal analysis method.Wherein, described protocal analysis method comprises: determine the agreement that described service message adopts; Read service fields in the packaged data of service message according to the set form of described agreement; Analyze the business that described service fields identifies according to the predetermined different field that different business adopted.Described protocal analysis method comprises: degree of depth service message detection method.
The described user side link of step C and provide the mapping relations of corresponding professional network side link to comprise one of following or combination in any: the mapping relations of user terminal source MAC and network side link; The mapping relations of user terminal source IP address and network side link; The mapping relations of the protocol type of teleservice message and network side link; The mapping relations of user terminal TCP/UDP source port number and network side link; The VLAN sign that user terminal inserts and the mapping relations of network side link; The ATM VPI/VCI that user terminal inserts and the mapping relations of network side link; The physical port that user terminal inserts and the mapping relations of network side link.
By such scheme as can be seen, broadband access equipment provided by the invention and cut-in method, can identify the information more than two layers of OSI architecture, therefore can identify the service message institute loaded service information of transmission, and be forwarded on the service link of corresponding network side.
Specifically, the present invention can adopt the DPI technology, support is to the 3rd layer of identification to application layer of agreement, thereby can identify service message loaded service information, and then described service message is carried out correct forwarding according to business information, provide the wide band multi-business ability thereby improved access node, make things convenient for carrying out of wide band multi-business.
Description of drawings
Fig. 1 is the broadband access network typical case networking schematic diagram of prior art;
Fig. 2 is the structure chart of broadband access equipment of the present invention;
Fig. 3 is the flow chart of service access of the present invention.
Embodiment
Broadband access equipment provided by the invention is corresponding to the access node in the broadband access network.Fig. 2 shows described broadband access equipment structural representation of the present invention, comprising: the reception/transmitting element 208 of the reception/transmitting element 202 of user side, traffic identification unit 204, professional map unit 206 and network side.Wherein:
Reception/the transmitting element 202 of user side is used to receive/send the service message of broadband access equipment user side.Specifically,, link to each other, receive the service message of the user terminal of transmitting from home gateway, and the service message that will issue user terminal sends to home gateway as home gateway with user side equipment.
Traffic identification unit 204 links to each other with the reception/transmitting element 202 of user side, is used for the service message from user terminal that the user side receiving element is received is carried out traffic identification, confirms this service message institute loaded service information.
Professional map unit 206 links to each other with the reception/transmitting element 208 of traffic identification unit 204, network side, the reception transmitting element 202 of user side.Store the mapping relations of different business and different network side link, the business information of the service message that identifies according to traffic identification unit 204 is determined the network side link that will use, set up the user side link of this service message of transmission and the mapping relations of network side link, and transmit service message in view of the above, comprise: will be forwarded on the corresponding network side link according to the business information that identifies from the service message of the user side of traffic identification unit 204, the service message on the service link of the network side that receives is forwarded on the corresponding user side link according to the mapping relations of being set up.
Wherein, the link that corresponding service is provided of network side can be various links, include but not limited to following link: ethernet link, asynchronous transfer mode (ATM, Asynchronous Transfer Mode) link, VPN (virtual private network) (VPN, Virtual Private Network) link, multi protocol label exchange (MPLS, Multiprotocol Label Switch) link, end-to-end dummy line emulation (PWE3, PseudowireEmulation Edge-to-Edge) link, virtual special local area network service (VPLS, Virtual Private LANService) link.
Reception/the transmitting element 208 of network side links to each other with professional map unit 206, is used to receive/send the service message of access device network side.Specifically, will send on the network, and the corresponding business message that comes automatic network that will receive sends to professional map unit 206 from the service message of professional map unit 206.
Referring to the flow chart of the service access of the broadband access equipment of the present invention shown in Fig. 3, the cut-in method of broadband access equipment of the present invention is further described.Wherein, the access device of support wide band multi-business of the present invention is corresponding to the access node among Fig. 1 110, and its user side link is a link 20, and its network side link is a link 40,60 and 80.This cut-in method may further comprise the steps:
Step 301: determine business that each bar link of network side of access device the is supported line item of going forward side by side.
Wherein, the business that can come each bar link of configuration network side to be supported by management system in advance, and configuration information stored.For example, when the network side link 40,60 and 80 of configuration access node 110 is supported IPTV, BRAS, VoIP business respectively, the ID of the business that can in configuration information, write down each network side link ID and be supported separately, and will store in this configuration information record to one configuration file.When needed, access device reads this configuration file, according to the configuration information of each link ID that writes down in the configuration file and corresponding service ID, just can determine each business that each bar link of its network side is supported.
Can also dynamically find business that each bar link of network side the is supported line item of going forward side by side by agreement.(Service Location Protocol SLP) realizes for example can to adopt the scope of business agreement.When adopting the SLP agreement, access device can be taken on user agent role, finds each business on each network side link by operation SLP protocol dynamic.
Step 302: access device identifies the service message institute loaded service information that user side link 20 receives by the traffic identification function of traffic identification unit 204.
Wherein, the method of access device identification services can be that the method by protocal analysis realizes, for example, at first determine the agreement that this service message is adopted, read out service fields in the packaged data of service message according to the set form of described agreement then, each traffic ID of being put down in writing with the traffic identification unit is relatively determined the type of this service message institute loaded service again.Wherein, when carrying out protocal analysis, can adopt degree of depth service message to detect (DPI, Deep Packet Inspection) technology.
Step 303: access device according to the business information that identifies, is set up the mapping relations of user side link that sends this service message and the network side link that corresponding business is provided by professional map unit 206.
Wherein, the mapping relations that access device is set up can adopt certain following mapping mode, or the combination of several mapping modes:
1) mapping of source user terminal MAC (Media Access Control, medium access control) address and network side link;
2) mapping of user terminal source IP address and network side link;
3) mapping of the protocol type of teleservice message and network side link;
4) mapping of user terminal transmission control protocol/User Datagram Protoco (UDP) (TCP/UDP, Transmission ControlProtocol/User Datagram Protocol) source port number and network side link;
5) the VLAN sign of user terminal access and the mapping of network side link;
6) virtual path identifier/Virtual Path Identifier (ATM VPI/VCI, Virtual PathIdentifier/Virtual Channel Identifier) of user terminal access and the mapping of network side link;
7) physical port of user terminal access and the mapping of network side link.
Step 304:, described user side service message is forwarded on the described network side link that corresponding business is provided by the mapping relations of setting up; On the other hand, when access device received service message from network side, the mapping relations by professional map unit 206 is set up in step 303 were forwarded to the service message of receiving on network side link 40,60 and 80 on the corresponding user side link 20.
As seen from the above, by the cut-in method that access device of the present invention provided, realized the identification of access device to the business-level of service message, thereby, service message from the different business of same user side link or different user sidelinks can be sent on the corresponding different network side link, and will send corresponding user side link to from the service message of different network side links, improved access node the wide band multi-business ability is provided, support a terminal to realize the service access under a plurality of service conditions, make things convenient for carrying out of wide band multi-business.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a broadband access equipment is characterized in that, comprising:
Reception/the transmitting element of user side is used for the service message by its link reception or transmission broadband access equipment user side;
The traffic identification unit links to each other with the reception/transmitting element of user side, is used to identify the service message institute loaded service information that user side reception/transmitting element receives by its link;
Professional map unit, link to each other with the reception/transmitting element of traffic identification unit, network side and the reception/transmitting element of user side, be used for the service message that the traffic identification unit identifies is sent to the link of the reception/transmitting element of the network side that corresponding service is provided, and in the future the service message of the described link of reception/transmitting element of automatic network side sends on the described link of reception/transmitting element of user side;
Reception/the transmitting element of network side is used for the service message by its link reception or transmission broadband access equipment network side.
2. a broad band access method is characterized in that, comprising:
A, determine the business that each bar link of network side is provided;
B, identify the service message institute loaded service that the user side link receives;
C, according to the described service message institute bearer service that identifies, set up described user side link and the mapping relations of corresponding professional network side link be provided;
D, the described mapping relations of foundation are forwarded to the user side service message on the corresponding network side link, and the service message of automatic network sidelinks is forwarded on the corresponding user side link in the future.
3. broad band access method according to claim 2 is characterized in that, the step of the business that each bar link of the described definite network side of steps A is provided comprises:
The configuration information of the business that each bar link of the network side of storing according to reading is supported is determined the business that each bar link of network side is provided.
4. broad band access method according to claim 2 is characterized in that, the step of the business that each bar link of the described definite network side of steps A is provided comprises:
Determine the business that each bar link of network side is provided by adopting protocol dynamic ground.
5. broad band access method according to claim 4 is characterized in that, described agreement comprises: the scope of business agreement.
6. broad band access method according to claim 2 is characterized in that, step B is described to be identified the service message institute loaded service step that the user side link receives and comprise:
Identify the service message institute loaded service that the user side link receives by the protocal analysis method.
7. broad band access method according to claim 6 is characterized in that, described protocal analysis method comprises:
Determine the agreement that described service message adopts;
Read service fields in the packaged data of service message according to the set form of described agreement;
Analyze the business that described service fields identifies according to the predetermined different field that different business adopted.
8. broad band access method according to claim 6 is characterized in that, described protocal analysis method comprises: degree of depth service message detection method.
9. broad band access method according to claim 2 is characterized in that, the described user side link of step C and provide the mapping relations of corresponding professional network side link to comprise one of following or combination in any:
The mapping relations of user terminal source MAC and network side link;
The mapping relations of user terminal source IP address and network side link;
The mapping relations of the protocol type of teleservice message and network side link;
The mapping relations of user terminal TCP/UDP source port number and network side link;
The VLAN sign that user terminal inserts and the mapping relations of network side link;
The ATM VPI/VCI that user terminal inserts and the mapping relations of network side link;
The physical port that user terminal inserts and the mapping relations of network side link.
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| CNA2007101193548A CN101102273A (en) | 2007-07-20 | 2007-07-20 | Broadband access and broadband access method |
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| CNA2007101193548A CN101102273A (en) | 2007-07-20 | 2007-07-20 | Broadband access and broadband access method |
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| CN101848134A (en) * | 2009-03-27 | 2010-09-29 | 中兴通讯股份有限公司 | Multi-service access node and data message forwarding method thereof |
| CN101984598A (en) * | 2010-11-04 | 2011-03-09 | 成都市华为赛门铁克科技有限公司 | Message forwarding method and deep packet inspection (DPI) device |
| CN101482883B (en) * | 2009-02-12 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for on-line updating characteristic character library |
| CN102710468A (en) * | 2011-03-28 | 2012-10-03 | 华为技术有限公司 | Customer service access method and system and access equipment |
| CN104202219A (en) * | 2014-09-17 | 2014-12-10 | 上海斐讯数据通信技术有限公司 | Multi-service wan connection binding testing method and system |
| CN104811326A (en) * | 2014-01-24 | 2015-07-29 | 中兴通讯股份有限公司 | Service chain management method, service chain management system, and devices |
| CN104954165A (en) * | 2015-04-20 | 2015-09-30 | 华为技术有限公司 | Link analysis method, device and system |
| CN105636100A (en) * | 2015-12-31 | 2016-06-01 | 京信通信系统（中国）有限公司 | Data link monitoring method and device |
| CN106302206A (en) * | 2015-05-28 | 2017-01-04 | 中兴通讯股份有限公司 | The method for processing forwarding of message, Apparatus and system |
| CN112449751A (en) * | 2019-06-28 | 2021-03-05 | 华为技术有限公司 | Data transmission method, switch and station |
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| CN101482883B (en) * | 2009-02-12 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for on-line updating characteristic character library |
| CN101848134B (en) * | 2009-03-27 | 2014-09-10 | 中兴通讯股份有限公司 | Multi-service access node and data message forwarding method thereof |
| CN101848134A (en) * | 2009-03-27 | 2010-09-29 | 中兴通讯股份有限公司 | Multi-service access node and data message forwarding method thereof |
| CN101984598A (en) * | 2010-11-04 | 2011-03-09 | 成都市华为赛门铁克科技有限公司 | Message forwarding method and deep packet inspection (DPI) device |
| WO2012058988A1 (en) * | 2010-11-04 | 2012-05-10 | 成都市华为赛门铁克科技有限公司 | Method for message forwarding and device for deep packet inspection |
| US8594086B2 (en) | 2010-11-04 | 2013-11-26 | Huawei Technologies Co., Ltd. | Packet diversion method and deep packet inspection device |
| CN102710468A (en) * | 2011-03-28 | 2012-10-03 | 华为技术有限公司 | Customer service access method and system and access equipment |
| WO2012130142A1 (en) * | 2011-03-28 | 2012-10-04 | 华为技术有限公司 | Method, system, and access device for user service access |
| CN104811326A (en) * | 2014-01-24 | 2015-07-29 | 中兴通讯股份有限公司 | Service chain management method, service chain management system, and devices |
| CN104202219A (en) * | 2014-09-17 | 2014-12-10 | 上海斐讯数据通信技术有限公司 | Multi-service wan connection binding testing method and system |
| CN104954165A (en) * | 2015-04-20 | 2015-09-30 | 华为技术有限公司 | Link analysis method, device and system |
| WO2016169121A1 (en) * | 2015-04-20 | 2016-10-27 | 华为技术有限公司 | Link analysis method, device and system |
| CN104954165B (en) * | 2015-04-20 | 2018-09-07 | 华为技术有限公司 | A kind of method, equipment and the system of link analysis |
| CN106302206A (en) * | 2015-05-28 | 2017-01-04 | 中兴通讯股份有限公司 | The method for processing forwarding of message, Apparatus and system |
| CN106302206B (en) * | 2015-05-28 | 2020-04-24 | 中兴通讯股份有限公司 | Message forwarding processing method, device and system |
| CN105636100A (en) * | 2015-12-31 | 2016-06-01 | 京信通信系统（中国）有限公司 | Data link monitoring method and device |
| CN105636100B (en) * | 2015-12-31 | 2019-01-18 | 京信通信系统（中国）有限公司 | A kind of data link monitoring method and device |
| CN112449751A (en) * | 2019-06-28 | 2021-03-05 | 华为技术有限公司 | Data transmission method, switch and station |
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Open date: 20080109 |