CN104219146A - Method and device for label configuration in access network based on ANCP (access network control protocol) - Google Patents
Method and device for label configuration in access network based on ANCP (access network control protocol) Download PDFInfo
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Abstract
The invention provides a method and a device for label configuration in an access network based on an ANCP (access network control protocol). The method includes: acquiring LSP (label switched path) information of services from a user of the access network to the access network, wherein the LSP information includes information of an access node and an intermediate node on the LSP, labels corresponding to all physical links on an LSP and bandwidth information corresponding to the LSP; generating label configuration information of the access node on the basis of the ANCP, wherein the label configuration information of the access node is used for configuring the access node so as to establish a designated access line, an uplink port of the access node and mapping among the labels used in the uplink port of the access point and used for indicating bandwidth occupied by the LSP on the uplink port of the access node; transmitting the label configuration information of the access node to the access node so as to indicate the access node to have the access node configured according to the label configuration information of the access node.
Description
Technical field
The present invention generally relates to the broadband access network communications field, more specifically, relates to a kind of method and apparatus carrying out label allocation in Access Network based on Access Network control protocol (Access Network Control Protocol is called for short ANCP).
Background technology
Following Access Network has many service architectures, and multiprotocol label switching (MPLS) is incorporated into (such as described in Broadband Forum BBF (http://www.broadband-forum.org) document TR-144, TR-145 and WT-178) in Access Network by it.In ordinary MPLS network, transfer of data occurs in label switched path (LabelSwitching Path, be called for short LSP) on, LSP information comprises the information of all nodes on the LSP from source to destination and the label corresponding with the every bar physical link on LSP, by utilizing the label on LSP, make the realization of the datum plane of MPLS network relatively simple.And as described in WT-178, support that the access node of MPLS must support many control/management agreements relevant to MPLS, such as, support the MPLS architecture according to RFC3031, support tag distribution protocol (the Label Distribution Protocol of RFC5036, be called for short LDP) etc., what this made the control plane of MPLS network realizes relative complex.
In addition, software defined network (Software Defined Network, be called for short SDN), virtual and cloud are the hot issues of current industry, are also the much-talked-about topics in BBF.The virtual user of making of Access Network dynamic requests can access the different virtual Access Networks or different application disposed in physical access network by third party.The virtual access node of virtual Access Network may be positioned on some intermediate nodes (as switch) be not directly connected with access node (physics access node).Therefore, physical access network must effectively set up terminal use and hope virtual Access Network or application between bang path.
Summary of the invention
Although LDP is a kind of tag distribution protocol for ordinary MPLS network, because the logical topology of Access Network is very simple, the intermediate node in Access Network only forwards grouping usually, therefore uses LDP for too complicated these intermediate nodes.In fact, in Access Network, only use light weight label signaling just enough.
In addition, as mentioned above, in virtual Access Network, physical access network must effectively set up terminal use and hope virtual Access Network or application between bang path.Therefore business of how effectively setting up from line attachment to the mapping of suitable LSP be a challenge.Further, along with the discussion of the SDN in and Access Network virtual to Access Network heats up, it is desirable to control from the service that whole Access Network visual angle is new to these.Such as, virtual Access Network operator wishes to carry out centralized control to Access Network, easily obtains and configure best visual link (that is, optimum label switching path) with the network control element by centralization.
For above problem, the invention provides a kind of method and apparatus carrying out tag configurations in Access Network based on existing protocol (as ANCP).
According to an aspect of the present invention, a kind of method carrying out label allocation in Access Network based on ANCP is provided.The method comprises: the LSP information obtaining the service from the user of Access Network to Access Network, and this LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on this LSP and this LSP of the access node on this LSP; For the access node on this LSP produces the access node tag configurations message based on ANCP, this access node tag configurations message is for configuring access node to set up the mapping between label that line attachment, the uplink port of access node and the uplink port of this access node of specifying use, and bandwidth shared by this LSP on the uplink port being used to indicate this access node; And this access node tag configurations message is sent to access node, access node is configured according to this access node tag configurations message to indicate access node.
According to another aspect of the present invention, a kind of device carrying out label allocation in Access Network based on ANCP is provided.This device comprises: acquiring unit, it is configured to the LSP information of the service obtained from the user of this Access Network to this Access Network, and this LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on this LSP and this LSP of the access node on this LSP; Tag configurations message generating unit, it is configured to as the access node generation on this LSP is based on the access node tag configurations message of ANCP, this access node tag configurations message is for configuring access node to set up the mapping between label that line attachment, the uplink port of access node and the uplink port of this access node of specifying use, and bandwidth shared by this LSP on the uplink port being used to indicate this access node; And transmitting element, it is configured to this access node tag configurations message to send to access node, is configured according to this access node tag configurations message to indicate access node to access node.
According to a further aspect in the invention, provide a kind of method carrying out label allocation in Access Network based on ANCP, comprise: receive the access node tag configurations message based on ANCP, this access node tag configurations message for configuring access node to set up the mapping between label that line attachment, the uplink port of this access node and the uplink port of this access node of specifying use, and the uplink port being used to indicate this access node specifies bandwidth shared by LSP; And transmit based on this access node tag configurations message generation, this transmits the corresponding relation on instruction line attachment, uplink port and uplink port between the label that uses.
According to a further aspect in the invention, provide a kind of device carrying out label allocation in Access Network based on ANCP, comprise: receiving element, it is configured to receive the access node tag configurations message based on ANCP, this access node tag configurations message for configuring access node to set up the mapping between label that line attachment, the uplink port of this access node and the uplink port of this access node of specifying use, and the uplink port being used to indicate this access node specifies bandwidth shared by LSP; And transmit generation unit, it is configured to transmit based on this access node tag configurations message generation, and this transmits the corresponding relation on instruction line attachment, uplink port and uplink port between the label that uses.
According to a further aspect in the invention, provide a kind of method carrying out label allocation in Access Network based on ANCP, comprise: receive the intermediate node tag configurations message based on ANCP, this intermediate node tag configurations message is used for configure intermediate nodes, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by specific LSP on corresponding port; And transmit based on this intermediate node tag configurations message generation, this is transmitted the instruction inbound port of this specified services at this intermediate node place, enters label, corresponding relation between outbound port and outgoing label.
According to a further aspect in the invention, provide a kind of device carrying out label allocation in Access Network based on ANCP, comprise: receiving element, it is configured to receive the intermediate node tag configurations message based on ANCP, this intermediate node tag configurations message is used for configure intermediate nodes, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by specific LSP on corresponding port; And transmit generation unit, it is configured to transmit based on this intermediate node tag configurations message generation, and this is transmitted the instruction inbound port of described specified services at this intermediate node place, enters label, corresponding relation between outbound port and outgoing label.
Utilize the solution of the present invention, simple tag configurations can be realized in Access Network, and centralized control can be carried out to label distribution.
Accompanying drawing explanation
After the description below with reference to the specific embodiment of the present invention given by following accompanying drawing, the present invention will be understood better, and other objects of the present invention, details, feature and advantage will become more apparent.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the many service architectures adopting ANCP;
Fig. 2 shows the signaling diagram carrying out the method for label allocation in Access Network based on ANCP according to embodiment of the present invention;
Fig. 3 shows the schematic diagram of the form of the tag configurations message based on ANCP according to embodiment of the present invention;
Fig. 4 A and 4B respectively illustrates the schematic diagram according to the access node tag configurations message based on ANCP of embodiment of the present invention and the form of intermediate node tag configurations message;
Fig. 5 shows the block diagram carrying out the device of label allocation in Access Network based on ANCP according to embodiment of the present invention;
Fig. 6 shows the block diagram of another device for carrying out label allocation in Access Network based on ANCP according to the embodiment of the present invention; And
Fig. 7 shows the block diagram of the another device for carrying out label allocation in Access Network based on ANCP according to the embodiment of the present invention.
Wherein, in all of the figs, same or analogous label represents to have identical, similar or corresponding feature or function.
Embodiment
Below with reference to accompanying drawings preferred implementation of the present disclosure is described in more detail.Although show preferred implementation of the present disclosure in accompanying drawing, but should be appreciated that, the disclosure can be realized in a variety of manners and not should limit by the execution mode of setting forth here.On the contrary, provide these execution modes to be to make the disclosure more thorough and complete, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Current, in Internet Engineering Task group (IETF) RFC 6320, define Access Node Control Protocol ANCP, work to perform the operation relevant to service quality, service and subscriber between its network access server in many service architectures (Network Access Server is called for short NAS) and access node.The definition in BBF (TR-147, WT-207) of corresponding framework.
Fig. 1 shows the schematic diagram of the many service architectures 100 adopting ANCP.As shown in fig. 1, many service architectures 100 comprise one or more physics access node (hereinafter referred to as access node) AN 102, AN 104, one or more intermediate node (as switch) 106,108, wideband network gateway (BNG) 110, certification, authorization and accounting (AAA) server 112.In addition, in many service architectures 100, one or more user is also comprised, as user 1, user 2, user 3 etc.In some instances, many service architectures 100 also comprise one or more VNO (VNO) or application 114.
In an example, user 1 wishes the service of access VNO 114, therefore should set up the connection between user 1 to the virtual access node (as intermediate node 108) of VNO 114 in physical access network.
In BNG 110, ANCP agreement is adopted to control access node/optical line terminal.ANCP is a kind of simple protocol, its network element supporting ANCP with other for the access node controlled in Access Network, therefore can consider in Access Network, to realize tag configurations by expansion ANCP.
Fig. 2 shows the signaling diagram carrying out the method 200 of label allocation in Access Network based on ANCP according to embodiment of the present invention.Below, with reference to the schematic diagram of figure 1, in conjunction with verification process, method 200 is described, but those skilled in the art can understand, tag configurations method of the present invention is not limited to the environment described in Fig. 2, but can realize in other environment, such as, can realize in conjunction with digital subscriber line (DSL) Topology Discovery process.
When user 1 asks the service of VNO 114, first user initiates authentication request (step 202), the identifier etc. of VNO that this authentication request comprises user certificate and asks.
BNG 110 explains this authentication request and sends corresponding access request (step 204) to aaa server 112.It will be understood by those skilled in the art that authentication request also can directly send to aaa server 112 by BNG 110 or by access node AN102.
In step 206, aaa server 112 returns access response to BNG 110, and instruction accepts the access request of user 1.According to one embodiment of the present invention, this access response comprises the LSP information of user 1 to the virtual access node of VNO 114, and this LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on this LSP and this LSP of the access node on this LSP.
After receiving this access response, more specifically, after receiving this LSP information, the ANCP server in BNG 110 is the access node tag configurations message (step S208) that the access node AN 102 on this LSP produces based on ANCP.
Fig. 3 shows the schematic diagram of the form of the tag configurations message based on ANCP according to embodiment of the present invention.As shown in Figure 3, in order to expand for tag configurations to conventional ANCP message, need to define new type of message.Such as, can define new type of message Type_Label_Configuration to indicate this ANCP message in " type of message " field of ANCP message is ANCP message for tag configurations.
Be for access node tag configurations or for intermediate node tag configurations according to expanded ANCP message, the tag configurations message based on ANCP of two seed categories can be defined further.Such as, can be access node tag configurations message for carrying out tag configurations to access node by " subtype " field of the ANCP message in Fig. 3 being set to " 0 " indicate this ANCP message, being somebody's turn to do " subtype " field, to be set to " 1 " indicate this ANCP message be intermediate node tag configurations message for carrying out tag configurations to intermediate node.But it will be understood by those skilled in the art that the present invention is not limited thereto, but can arrange to indicate access node tag configurations message and intermediate node tag configurations message by any subtype of other differentiable modes to this ANCP message.
Fig. 4 A shows the schematic diagram of the form of the access node tag configurations message based on ANCP according to embodiment of the present invention.In the present invention, access node tag configurations message is for configuring access node, the line attachment of specifying with foundation (namely, the user-side port of access node), mapping between label that the uplink port (i.e. the network-side port of access node) of access node and the uplink port of access node use, and be used to indicate bandwidth shared by this LSP on uplink port.Note, for simplicity, the schematic diagram of the access node tag configurations message in Fig. 4 A eliminates TCP/IP encapsulation header part as shown in Figure 3 and ANCP head part.
As shown in Figure 4 A, the field for tag configurations in this access node tag configurations message comprises: sub-type field, length field, line attachment identification field, LSP label field and LSP bandwidth field etc.
As mentioned above, for access node tag configurations message, should " subtype " field such as can be set to " 0 ".
Length field is used to indicate the total length for the field of tag configurations in access node tag configurations message.
Line attachment identification field is for identifying the line attachment of access node.Such as, Access-Loop-Circuit-ID or Access-Loop-Remote-ID defined in existing ANCP agreement can be used to identify line attachment.
LSP label field is used to indicate the label that the uplink port (i.e. network-side port) of access node uses.
LSP bandwidth field is used to indicate the bandwidth of the business distributing to this line attachment.Access node uses this bandwidth information to the business on the uplink port between the Different L SP dispatching access node place.
Such as, in the implementation shown by Fig. 4 A, for the length+12 of the value=line attachment identification field of the length field in the field of tag configurations, in units of byte.Herein, 12 is total lengths of sub-type field, length field, reserved field, LSP label field and LSP bandwidth field included in the field for tag configurations, in units of byte.
Carry out reference diagram 2 again, after ANCP server in BNG 110 creates the access node tag configurations message (step S208) based on ANCP, produced access node tag configurations message is sent to access node AN 102 (step S210) by it.
After access node AN 102 receives the access node tag configurations message based on ANCP of BNG 110 transmission, according to this access node tag configurations message, access node AN 102 is configured, thus the mapping of setting up between label that line attachment, the uplink port of access node and the uplink port of access node use, and set bandwidth (step S212) shared by this LSP on uplink port.Specifically, according to the content (such as type of message is Type_Label_Configuration) in " type of message " field, access node AN102 determines that received message is tag configurations message, and determine that this message is the access node configuration messages for being configured access node according to the information (such as subtype is " 0 ") in " subtype " field further, then according to the information in the payload portions of this message, the label of specified services at this access node place is configured, thus set up instruction line attachment, the transmitting and it stored of corresponding relation between the label that uplink port and uplink port use.
After tag configurations process of the present invention terminates, when access node AN 102 receives the ul data packet from appointment line attachment, it is by searching stored transmitting, this packet is forwarded to the uplink port corresponding with this line attachment, and with the label of the correspondence in transmitting, this packet is marked.
Or, after tag configurations process of the present invention terminates, when access node AN 102 receives packet by the uplink port of specifying, it removes the label entrained by this packet, and by searching stored transmitting, this packet is forwarded to the line attachment corresponding with this uplink port.
After access node AN 102 is successfully made tag configurations (step S212), it sends ANCP response to indicate the tag configurations on this access node to be successfully completed (step S214) to BNG 110.
In some cases, such as when the virtual Access Network that user wants access third party to dispose in physical access network, need the transmission path set up between the virtual access node of user and this virtual Access Network, and virtual access node may be arranged on some intermediate nodes be not directly connected with physics access node (intermediate node 108 of such as Fig. 1).Now, also need to be configured the label on all intermediate nodes on LSP.
In this case, after receiving this access response (step S206), more specifically, after receiving this LSP information, the ANCP server in BNG 110 is also the intermediate node tag configurations message (step S208 ') that intermediate node on this LSP produces based on ANCP.
Fig. 4 B shows the schematic diagram of the form of the intermediate node tag configurations message based on ANCP according to embodiment of the present invention.In the present invention, intermediate node tag configurations message (comprises destination node for the intermediate node configured on LSP, the i.e. virtual access node of the VNO of the desired access of user), intermediate node 106 as shown in Figure 1 and intermediate node 108, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and indicate bandwidth shared by this LSP on corresponding port.Note, with Fig. 4 category-A seemingly, the schematic diagram of the intermediate node tag configurations message in Fig. 4 B eliminates TCP/IP encapsulation header part as shown in Figure 3 and ANCP head part.
As shown in Figure 4 B, the field for tag configurations in this intermediate node tag configurations message comprises: sub-type field, length field, inbound port id field, enter label field, outbound port id field, outgoing label field and LSP bandwidth field etc.
As mentioned above, for intermediate node tag configurations message, should " subtype " field such as can be set to " 1 ".
Length field is used to indicate the total length for the field of tag configurations in intermediate node tag configurations message.
Inbound port id field is used to indicate the identifier of the inbound port of this intermediate node.
Enter the label for this business on this inbound port that label field is used to indicate this intermediate node.
Outbound port id field is used to indicate the identifier of the outbound port of this intermediate node.
For the label of this business on this outbound port that outgoing label field is used to indicate this intermediate node.
LSP bandwidth field is used to indicate the bandwidth this LSP distributing to this business.Intermediate node can use this bandwidth information to dispatch the business on outbound port between Different L SP.
Such as, in the implementation shown by Fig. 4 B, the value of length field can be set to 16 bytes.Herein, 16 are sub-type field included in the field for tag configurations, length field, reserved field, inbound port id field, enter the total length of label field, outbound port id field, outgoing label field and LSP bandwidth field, in units of byte.
In one embodiment, when virtual access node (the i.e. destination node that intermediate node is the VNO that user wants to be connected to, intermediate node 108 such as shown in Fig. 1) time, the outbound port id field of this intermediate node tag configurations message and outgoing label field are set to sky (NULL).Alternatively, also outbound port id field and outgoing label field can be set to can represent arbitrarily the value that this field is invalid, even can omit outbound port id field and outgoing label field.
Carry out reference diagram 2 again, after ANCP server in BNG 110 produces the intermediate node tag configurations message (step S208 ') based on ANCP, produced intermediate node tag configurations message is sent to intermediate node by it, such as, intermediate node 106 shown in Fig. 1 or intermediate node 108 (step S210 ').
After intermediate node receives the intermediate node tag configurations message based on ANCP of BNG 110 transmission, be configured according to this intermediate node tag configurations message pair intermediate node, thus set up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and set bandwidth shared by specific LSP on corresponding port (step S212 ').Specifically, according to the information (such as type of message is Type_Label_Configuration) in " type of message " field, intermediate node determines that received ANCP message is tag configurations message, and determine that this message is the intermediate node configuration messages for being configured intermediate node according to the information (such as subtype is " 1 ") in " subtype " field further, then according to the information in the payload portions of this message, the label of specified services at this intermediate node place is configured, thus set up instruction inbound port, enter label, the transmitting and it stored of corresponding relation between outbound port and outgoing label.
After tag configurations process of the present invention terminates, when intermediate node receives packet from certain inbound port, it is by searching stored transmitting, this packet is sent by the outbound port corresponding with this inbound port, and replaces with the outgoing label of the correspondence in transmitting and entrainedly when this packet enters from inbound port enter label.
After this intermediate node is successfully made tag configurations, it sends ANCP response to BNG 110 and is successfully completed (step S214 ') to indicate the tag configurations on this intermediate node.
Usually, user to the VNO wished virtual access node (intermediate node 108 as shown in Figure 1) between LSP may comprise multiple intermediate node (intermediate node 106 as shown in Figure 1 and intermediate node 108), ENG 110 is by being configured the label of specified services at each intermediate node place for each intermediate node is parallel or perform step S208 '-S214 ' successively.
When ENG 110 receives from access node and each intermediate node the ANCP response indicating successfully configuration, it sends authentication success message (S216) to user.
So far, the virtual link between user and the VNO desired by it (i.e. the virtual access node of VNO) is successfully established.
Integrating step S208-S214 and step S208 '-S214 ' is described successively to access node tag configurations process and intermediate node tag configurations process above, but it will be appreciated by those skilled in the art that, the present invention is not limited thereto, but only can perform the access node tag configurations process of step S208-S214, or, can walk abreast or perform this two processes with other orders.
In addition, in description above, ENG 110 receives LSP information from aaa server 112, but the present invention is not limited thereto, and ENG 110 can obtain this LSP information in any way, such as, can arrange the LSP information of specified services in advance in ENG 110.
In addition, in description above, describe transmitting of two kinds of forms for access node and intermediate node, but the present invention is not limited thereto.It will be understood by those skilled in the art that the forwarding tableau format that access node and intermediate node are set up can be identical, for access node, inbound port id field can be set to corresponding line attachment identifier, and label will be entered be set to sky.
Fig. 5 shows the block diagram of the device 500 for carrying out label allocation in Access Network based on ANCP according to the embodiment of the present invention.Device 500 such as can be implemented in the ANCP server in ENG 110 or by ANCP server and realizes.But the present invention is not limited thereto, device 500 can by supporting that arbitrarily the network controls element of ANCP agreement realizes.
As shown in the figure, device 500 comprises: acquiring unit 510, it is configured to the LSP information of the service obtained from the user of Access Network to Access Network, and this LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on LSP and this LSP of the access node on LSP; Tag configurations message generating unit 520, it is configured to as the access node generation on this LSP is based on the access node tag configurations message of ANCP, this access node tag configurations message is for configuring access node to set up the mapping between label that line attachment, the uplink port of access node and the uplink port of this access node of specifying use, and bandwidth shared by this LSP on the uplink port being used to indicate this access node; And transmitting element 530, it is configured to this access node tag configurations message to send to access node, is configured according to the label of this access node tag configurations message to access node place to indicate access node.
In one embodiment, tag configurations message generating unit 520 is also configured to as the intermediate node generation on this LSP is based on the intermediate node tag configurations message of ANCP, this intermediate node tag configurations message is for configuring the intermediate node on this LSP, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by this LSP on corresponding port.In this embodiment, transmitting element 530 is also configured to this intermediate node tag configurations message to send to intermediate node, is configured according to this intermediate node tag configurations message pair intermediate node to indicate intermediate node.
In one embodiment, this access node tag configurations message comprises: for identify the line attachment of access node line attachment identification information, be used to indicate the LSP label information of the label that the uplink port of access node uses and be used to indicate the LSP bandwidth information of bandwidth of the business distributing to line attachment.
In one embodiment, the inbound port id information that this intermediate node tag configurations message comprises the identifier of the inbound port being used to indicate intermediate node, be used to indicate intermediate node inbound port on for this business label enter label information, and be used to indicate the LSP bandwidth information of the bandwidth this LSP distributing to this business.
In one embodiment, such as when intermediate node is not destination node, the outbound port id information that this intermediate node tag configurations message also comprises the identifier of the outbound port being used to indicate this intermediate node and be used to indicate this intermediate node outbound port on for the outgoing label information of the label of this business.
Fig. 6 shows the block diagram of another device 600 for carrying out label allocation in Access Network based on ANCP according to the embodiment of the present invention.Device 600 such as can be implemented in access node (access node AN102 as shown in Figure 1) or by access node and realizes.
As shown in the figure, device 600 comprises receiving element 610, it is configured to receive the access node tag configurations message based on ANCP, this access node tag configurations message for configuring access node to set up the mapping between label that line attachment, the uplink port of this access node and the uplink port of this access node of specifying use, and the uplink port being used to indicate this access node specifies bandwidth shared by LSP.Device 600 also comprises transmits generation unit 620, and it is configured to transmit based on this access node tag configurations message generation, and this transmits the corresponding relation on instruction line attachment, uplink port and uplink port between the label that uses.
In one embodiment, device 600 also comprises transmitting element 630, it is configured to when receiving the ul data packet from appointment line attachment, transmit by searching this, this packet is forwarded to the uplink port corresponding with this appointment line attachment, and the label of correspondence in transmitting with this marks to this packet; And be configured to when by specific uplink port accepts to packet time, remove the label entrained by this packet, and transmit by searching this this packet is forwarded to the line attachment corresponding with this uplink port.
Fig. 7 shows the block diagram of the another device 700 for carrying out label allocation in Access Network based on ANCP according to the embodiment of the present invention.Device 700 such as can be implemented in intermediate node (intermediate node as shown in Figure 1 (as switch) 106 or 108) or by intermediate node and realizes.
As shown in the figure, device 700 comprises receiving element 710, it is configured to receive the intermediate node tag configurations message based on ANCP, this intermediate node tag configurations message is used for configure intermediate nodes, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by specific LSP on corresponding port.Device 700 also comprises transmits generation unit 720, it is configured to transmit based on this intermediate node tag configurations message generation, and this is transmitted the instruction inbound port of this specified services at this intermediate node place, enters label, corresponding relation between outbound port and outgoing label.
In one embodiment, device 700 also comprises transmitting element 730, it is configured to when receiving the packet from appointment inbound port, transmit described in searching, this packet is forwarded to the outbound port corresponding with this inbound port, and the outgoing label of correspondence in transmitting with this is replaced and entrainedly when this packet enters from this inbound port is entered label.
According to the solution of the present invention, by arranging the access node tag configurations message based on ANCP, dynamic user's attach procedure can be realized the appointment line attachment on the user port of access node to be connected to the correct LSP on uplink port (i.e. network-side port).
In addition, according to the solution of the present invention, by expanding to carry out tag configurations to the node in Access Network to ANCP, simple tag configurations can be realized, and centralized control can be carried out to label distribution.In this way, the operator of Access Network has unified parametric controller and comes Dynamic controlling access node and intermediate node (as switch) and no longer need on the access node and intermediate node of Access Network, realize complicated LDP.
Here, with reference to accompanying drawing, method disclosed herein is described.But be to be understood that, shown in accompanying drawing and described in specification sequence of steps is only schematic, without departing from the scope of the claims, these method steps and/or action can perform according to different orders and the concrete order that be not limited to described in shown in accompanying drawing and specification.
In one or more exemplary design, the function that can realize described in the application by hardware, software, firmware or their combination in any.If realized with software, then can using described function as one or more instruction or code storage on a computer-readable medium, or transmit as the one or more instruction on computer-readable medium or code.Computer-readable medium comprises computer-readable storage medium and communication media, and wherein communication media comprises and contributes to computer program is delivered to another place arbitrary medium from a place.Storage medium can be the addressable any usable medium of universal or special computer.This computer-readable medium can comprise, such as but not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disc memory apparatus, disk storage device or other magnetic storage apparatus, or can be used for other medium any carrying or store the code modules of hope with the form of universal or special computer or the addressable instruction of universal or special processor or data structure.Further, any connection also can be known as computer-readable medium.Such as, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, the wireless technology of DSL or such as infrared ray, radio and microwave and so on is come from website, server or other remote source, so the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, radio and microwave and so on is also included within the definition of medium.
Can realize by general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or the combination in any for performing function as herein described or perform in conjunction with various exemplary logical block, module and the circuit described by the disclosure.General processor can be microprocessor, or processor also can be the processor of any routine, controller, microcontroller or state machine.Processor also can be implemented as the combination of computing equipment, such as, and the combination of the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessor and DSP kernel, or other this kind of structure any.
Those of ordinary skill in the art it is also understood that various exemplary logical block, module, circuit and algorithm steps that the embodiment in conjunction with the application describes can be embodied as electronic hardware, computer software or the combination of the two.In order to clearly represent this interchangeability between hardware and software, all around its function, general description is carried out to various exemplary parts, block, module, circuit and step above.Be embodied as hardware as this function or be embodied as software, the design constraint depending on specific application and apply over the whole system.Those skilled in the art for often kind of application-specific, can realize described function in the mode of accommodation, but, thisly realize decision-making and should not be construed as and deviate from protection scope of the present invention.
Above description of the present disclosure is for enabling any those of ordinary skill of this area realize or use the present invention.To those skilled in the art, various amendment of the present disclosure is all apparent, and general principle defined herein also can be applied to other distortion when not departing from spirit of the present invention and protection range.Therefore, the present invention is not limited to example as herein described and design, but consistent with the widest scope of principle disclosed herein and novel features.
Claims (18)
1. in Access Network, carry out a method for label allocation based on Access Network control protocol (ANCP), comprising:
Obtain label switched path (LSP) information from the user of described Access Network to the service of described Access Network, described LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on described LSP and this LSP of the access node on described LSP;
For the access node on described LSP produces the access node tag configurations message based on ANCP, described access node tag configurations message is for configuring access node to set up the mapping between label that line attachment, the uplink port of access node and the uplink port of this access node of specifying use, and bandwidth shared by described LSP on the uplink port being used to indicate this access node; And
Described access node tag configurations message is sent to access node, according to described access node tag configurations message, access node is configured to indicate access node.
2. the method for claim 1, also comprises:
For the intermediate node on described LSP produces the intermediate node tag configurations message based on ANCP, described intermediate node tag configurations message is for configuring the intermediate node on described LSP, setting up the inbound port of specified services at described intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by this LSP on corresponding port; And
Described intermediate node tag configurations message is sent to intermediate node, is configured according to described intermediate node tag configurations message pair intermediate node to indicate intermediate node.
3. the method for claim 1, wherein said access node tag configurations message comprises: for identify the line attachment of access node line attachment identification information, be used to indicate the LSP label information of the label that the uplink port of described access node uses and be used to indicate the LSP bandwidth information of bandwidth of the business distributing to described line attachment.
4. method as claimed in claim 2, the inbound port id information that wherein said intermediate node tag configurations message comprises the identifier of the inbound port being used to indicate described intermediate node, be used to indicate described intermediate node described inbound port on for described business label enter label information, and be used to indicate the LSP bandwidth information of the bandwidth described LSP distributing to described business.
5. method as claimed in claim 4, wherein when intermediate node is not destination node, the outbound port id information that described intermediate node tag configurations message also comprises the identifier of the outbound port being used to indicate described intermediate node and be used to indicate described intermediate node described outbound port on for the outgoing label information of the label of described business.
6. in Access Network, carry out a device for label allocation based on Access Network control protocol (ANCP), comprising:
Acquiring unit, it is configured to obtain label switched path (LSP) information from the user of described Access Network to the service of described Access Network, and described LSP information comprises the bandwidth information corresponding with the information of intermediate node, the label corresponding with the every bar physical link on described LSP and this LSP of the access node on described LSP;
Tag configurations message generating unit, it is configured to as the access node generation on described LSP is based on the access node tag configurations message of ANCP, described access node tag configurations message is for configuring access node to set up the mapping between label that line attachment, the uplink port of access node and the uplink port of this access node of specifying use, and bandwidth shared by described LSP on the uplink port being used to indicate this access node; And
Transmitting element, it is configured to described access node tag configurations message to send to access node, is configured according to described access node tag configurations message to indicate access node to access node.
7. device as claimed in claim 6, wherein
Described tag configurations message generating unit is also configured to as the intermediate node generation on described LSP is based on the intermediate node tag configurations message of ANCP, described intermediate node tag configurations message is for configuring the intermediate node on described LSP, setting up the inbound port of specified services at described intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate bandwidth shared by this LSP on corresponding port; And
Described transmitting element is also configured to described intermediate node tag configurations message to send to intermediate node, is configured according to described intermediate node tag configurations message pair intermediate node to indicate intermediate node.
8. device as claimed in claim 6, wherein said access node tag configurations message comprises: for identify the line attachment of access node line attachment identification information, be used to indicate the LSP label information of the label that the uplink port of described access node uses and be used to indicate the LSP bandwidth information of bandwidth of the business distributing to described line attachment.
9. device as claimed in claim 7, the inbound port id information that wherein said intermediate node tag configurations message comprises the identifier of the inbound port being used to indicate described intermediate node, be used to indicate described intermediate node described inbound port on for described business label enter label information, and be used to indicate the LSP bandwidth information of the bandwidth described LSP distributing to described business.
10. device as claimed in claim 9, wherein when intermediate node is not destination node, the outbound port id information that described intermediate node tag configurations message also comprises the identifier of the outbound port being used to indicate described intermediate node and be used to indicate described intermediate node described outbound port on for the outgoing label information of the label of described business.
11. 1 kinds of methods carrying out label allocation in Access Network based on Access Network control protocol (ANCP), comprising:
Receive the access node tag configurations message based on ANCP, described access node tag configurations message for configuring access node to set up the mapping between label that line attachment, the uplink port of this access node and the uplink port of this access node of specifying use, and the uplink port being used to indicate this access node specifies the shared bandwidth of label switched path (LSP); And
Transmit based on described access node tag configurations message generation, this transmits the corresponding relation on instruction line attachment, uplink port and uplink port between the label that uses.
12. methods as claimed in claim 11, also comprise:
When receiving the ul data packet from appointment line attachment, transmit described in searching, described packet is forwarded to the uplink port corresponding with described line attachment, and with described in transmit in the label of correspondence described packet is marked; And
When by specific uplink port accepts to packet time, remove the label entrained by described packet, and by transmitting described in searching, described packet be forwarded to the line attachment corresponding with described uplink port.
13. 1 kinds of devices carrying out label allocation in Access Network based on Access Network control protocol (ANCP), comprising:
Receiving element, it is configured to receive the access node tag configurations message based on ANCP, described access node tag configurations message for configuring access node to set up the mapping between label that line attachment, the uplink port of this access node and the uplink port of this access node of specifying use, and the uplink port being used to indicate this access node specifies the shared bandwidth of label switched path (LSP); And
Transmit generation unit, it is configured to transmit based on described access node tag configurations message generation, and this transmits the corresponding relation on instruction line attachment, uplink port and uplink port between the label that uses.
14. devices as claimed in claim 13, also comprise:
Transmitting element, it is configured to when receiving the ul data packet from appointment line attachment, transmit described in searching, described packet is forwarded to the uplink port corresponding with described line attachment, and with described in transmit in the label of correspondence described packet is marked; And be configured to when by specific uplink port accepts to packet time, remove the label entrained by described packet, and by transmitting described in searching, described packet be forwarded to the line attachment corresponding with described uplink port.
15. 1 kinds of methods carrying out label allocation in Access Network based on Access Network control protocol (ANCP), comprising:
Receive the intermediate node tag configurations message based on ANCP, described intermediate node tag configurations message is used for configure intermediate nodes, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate the shared bandwidth of specific label switching path (LSP) on corresponding port; And
Transmit based on described intermediate node tag configurations message generation, this transmitted the instruction inbound port of described specified services at described intermediate node place, enter label, corresponding relation between outbound port and outgoing label.
16. methods as claimed in claim 15, also comprise:
When receiving the packet from appointment inbound port, transmit described in searching, described packet is forwarded to the outbound port corresponding with described inbound port, and with described in transmit in the outgoing label of correspondence replace and entrainedly when described packet enters from described inbound port enter label.
17. 1 kinds of devices carrying out label allocation in Access Network based on Access Network control protocol (ANCP), comprising:
Receiving element, it is configured to receive the intermediate node tag configurations message based on ANCP, described intermediate node tag configurations message is used for configure intermediate nodes, setting up the inbound port of specified services at this intermediate node place, enter label, mapping between outbound port and outgoing label, and be used to indicate the shared bandwidth of specific label switching path (LSP) on corresponding port; And
Transmit generation unit, it is configured to transmit based on described intermediate node tag configurations message generation, and this is transmitted the instruction inbound port of described specified services at described intermediate node place, enters label, corresponding relation between outbound port and outgoing label.
18. devices as claimed in claim 17, also comprise:
Transmitting element, it is configured to when receiving the packet from appointment inbound port, transmit described in searching, described packet is forwarded to the outbound port corresponding with described inbound port, and with described in transmit in the outgoing label of correspondence replace and entrainedly when described packet enters from described inbound port enter label.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989213A (en) * | 2017-05-31 | 2018-12-11 | 瞻博网络公司 | It is arranged using the selected structural path transmission LSP between dummy node |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601971A (en) * | 2003-09-26 | 2005-03-30 | 华为技术有限公司 | Resource allocation method of bearing control layer |
| CN1859431A (en) * | 2005-04-30 | 2006-11-08 | 中兴通讯股份有限公司 | Method for realizing two-way marked exchange path |
| CN101931548A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Method, apparatus and system for label management of access network |
| CN102244863A (en) * | 2010-05-13 | 2011-11-16 | 华为技术有限公司 | 802.1x-based access authentication method, access equipment and aggregation equipment |
-
2013
- 2013-06-04 CN CN201310220161.7A patent/CN104219146B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601971A (en) * | 2003-09-26 | 2005-03-30 | 华为技术有限公司 | Resource allocation method of bearing control layer |
| CN1859431A (en) * | 2005-04-30 | 2006-11-08 | 中兴通讯股份有限公司 | Method for realizing two-way marked exchange path |
| CN101931548A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Method, apparatus and system for label management of access network |
| CN102244863A (en) * | 2010-05-13 | 2011-11-16 | 华为技术有限公司 | 802.1x-based access authentication method, access equipment and aggregation equipment |
Non-Patent Citations (2)
| Title |
|---|
| MATTHEW BOCCI ET AL: "Network high availability for ethernet services using IP/MPLS networks", 《IEEE COMMUNICATIONS MAGAZINE》 * |
| 王静华: "基于MPLS流量工程的约束路由的研究", 《计算机工程与设计》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989213A (en) * | 2017-05-31 | 2018-12-11 | 瞻博网络公司 | It is arranged using the selected structural path transmission LSP between dummy node |
| CN108989213B (en) * | 2017-05-31 | 2022-01-11 | 瞻博网络公司 | Transmitting LSP settings using selected fabric paths between virtual nodes |
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