CN103117927A - Method of obtaining address of strategy server - Google Patents
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- CN103117927A CN103117927A CN2011103649049A CN201110364904A CN103117927A CN 103117927 A CN103117927 A CN 103117927A CN 2011103649049 A CN2011103649049 A CN 2011103649049A CN 201110364904 A CN201110364904 A CN 201110364904A CN 103117927 A CN103117927 A CN 103117927A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
- H04W80/045—Network layer protocols, e.g. mobile IP [Internet Protocol] involving different protocol versions, e.g. MIPv4 and MIPv6
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Abstract
The invention discloses a method of obtaining the address of a strategy server. The method comprises obtaining address properties of the strategy server from an authentication, authorization and accounting (AAA) server in the process that an access service router authenticates a mobile node, wherein the address properties of the strategy server provide flow routing strategies for the mobile node. According to the method, the address of the strategy server of the mobile node is obtained from the AAA server in the authentication process or a registration process, so that before an automatic send-receiver (ASR) or an intelligent long range (ILR) selects appropriate flow routing for a business started by a terminal node according to the flow routing of the multi-interface mobile node, the flow routing strategies of the mobile node can be obtained from the strategy server according to the address of the strategy server of the mobile node.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of method of address of acquisition strategy server.
Background technology
The existing widely used TCP/IP in internet (Transmission Control Protocol/InternetProtocol, transmission control protocol/internet protocol) in, the IP address has dual-use function, both as the station location marker of communication terminal host network interface in network topology of network layer, again as the identify label of transport layer host network interface.But when host mobility was more and more general, the semanteme overload defective of this IP address was day by day obvious.When the IP address of main frame changed, not only route changed, and the identify label of communication terminal main frame also changes, and will cause like this routing overhead more and more heavier, and the variation of host identification also will cause using and the interruption that is connected.The purpose that identify label and position separation problem propose is for the semanteme overload that solves the IP address and the problem such as routing overhead is serious, the dual-use function of IP address is separated, realize the support that the problems such as exchanging visit between the heterogeneous networks zone in routing overhead and Next Generation Internet are dynamically heavily distributed, alleviated in mobility, many locals property, IP address.
Fig. 1 shows the architectures of communication networks that a kind of identity is separated with the position, in this architectures of communication networks, configuration AID (Access Identifier, the access sign) as terminal MN (Mobile Node, mobile node) and the identify label of CN (Correspondent Node, peer node).RID (RouterIdentifier, Route Distinguisher) as station location marker, ASR (Access Service Router, access service router) is as couple in router, configuration RID (Router Identifier, Route Distinguisher) is as station location marker.All terminals register, authenticate by ASR and access network is all undertaken by ASR.When terminal accessed or leaves ASR, ASR needed (the Identifier﹠amp to ILR; Location Register, identity and location register register) report.ILR is according to the report of ASR, preserves and the mapping relations (AID, RID) of maintenance terminal identify label AID and position RID, and response to the query mappings relation is provided simultaneously.
Message at identity and location network repeating as shown in Figure 2.When MN and CN communicated, after the message that MN is sent to CN arrived ASR1, whether ASR1 existed the current RID of CN according to the destination address (being the AID of CN) of message on the local map record of inquiry ASR1.
If exist, ASR1 carries out encapsulate forwarded according to the RID of the CN that inquires to message.
If do not exist, ASR1 is to the current RID of ILR inquiry CN; Then ASR1 uses the RID of ASR1 and CN that message is encapsulated, then encapsulated message is forwarded to ASR2 corresponding to RID of CN from the RID that ILR obtains CN; Last ASR2 carries out decapsulation to the message that receives, and is forwarded to CN.
In the message repeating flow process, the encapsulation format of message is divided into two kinds of original message and RID encapsulated messages:
Original message forwards: at the Access Layer of identity and locator separation network, namely adopt AID to carry out message repeating as source address and destination address between Host and ASR, message format as shown in Figure 3.
The RID encapsulated message forwards: in the core layer of identity and locator separation network, namely adopt the message repeating after RID encapsulates between ASR and ASR, message as shown in Figure 4.
At present, because terminal can have a plurality of connections simultaneously, make the mapping relations of terminal AID and RID become complicated.For example, in Fig. 5, MN is by two different interface if1 (interface1) and if2 (interface2) access marked net, and wherein if1 accesses ASR1, and if2 accesses ASR2.If1 and if2 will use different station location markers like this, and if1 is assigned with the RID1 of ASR1, and if2 is assigned with the RID2 of ASR2.And in Fig. 6, MN is also by two different interface if1 and if2 access marked net, but therefore if1 and the identical ASR of if2 access are assigned with identical RID, the i.e. RID1 of ASR1.
Under single access technology scene, mapping relations (the AID that ILR safeguards, RID) can complete preferably the route task, but under the multi-access technology scene, as mentioned above, a plurality of interfaces on MN all will use identical AID, mapping relations (the AID that safeguarded by ILR this moment, RID) can't distinguish distinct interface from same MN, therefore, under the multi-access technology scene, ILR not only will safeguard (AID, RID), comprise the access technology type of each interface of MN, belong to the distinct interface of same MN with differentiation.Mapping relations on expansion ILR are (AID, RID, IF), complete the upper distinct interface access style of MN in the registration of ILR by ASR.
Under the multi-access technology scene, the ILR mapping relations (AID, RID, IF) of expansion have been distinguished the distinct interface that belongs to same MN, have following problem but carry out route by (AID, RID, IF):
Fig. 5 illustrates the different ASR of distinct interface access of many interfaces MN, and there are two mapping relations in MN on ILR: (AID1, RID1, IF1) and (AID1, RID2, IF2).When CN initiated communication to MN, the correct mapping relations of ASR3 How to choose came the route message to which interface of MN.
Fig. 6 illustrates the identical ASR of distinct interface access of many interfaces MN, and there are two mapping relations in MN on ILR, (AID1, RID1, IF1) and (AID1, RID1, IF2).When CN sent message to MN, ASR1 received the message that comes from CN, and the interface of ASR1 How to choose MN carries out message repeating.
Therefore, when peer node sends data to many interface terminations, opposite end ASR or terminal ASR or ILR need to be according to the stream of many interface terminations by information such as strategies, terminal location sign and interface that the service selection of initiating for peer node is suitable, thereby carry out normal message repeating route, with the anomaly that reduces transfer of data, the effective guarantee that transfer of data is provided.
And at ASR or ILR according to the stream of many interface terminations by policy information, before terminal location sign and interface that the service selection of initiating for peer node is suitable, ASR or ILR must know the address of the strategic server at terminal place, download the stream of corresponding this terminal by strategy from strategic server.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of address of acquisition strategy server, and the stream that uses mobile node at needs is during by strategy, can be according to the address acquisition of strategic server to stream by strategy.
For solving the problems of the technologies described above, the method for the address of a kind of acquisition strategy server of the present invention comprises:
The access service router is in the process that mobile node is authenticated, from authentication, mandate, charging (AAA) server is retrieved as described mobile node that the address properties of stream by the strategic server of strategy is provided.
Further, describedly be retrieved as described mobile node from aaa server the address properties of stream by the strategic server of strategy be provided, comprising:
Described access service router carries the attribute-value of the address of asking described strategic server to (AVP) in the AAA request message that sends to described aaa server;
After described aaa server receives described AAA request message, when carrying described AVP in described AAA request message, search the address properties of corresponding strategic server according to the sign of mobile node, the address properties of the strategic server that finds is returned to described access service router.
Further, describedly be retrieved as described mobile node from aaa server the step of stream by the address properties of the strategic server of strategy be provided, comprising:
Described access service router sends the AAA request message to described aaa server;
Described aaa server is searched the address properties of corresponding strategic server according to the sign of mobile node after receiving described AAA request message, the address properties of the strategic server that finds is returned to described access service router.
Further, also comprise:
Described access service router sends registration request to identity and location register register after described mobile node is by authentication, carry the address properties of strategic server in described registration request;
Described identity and location register register after receiving described registration request, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described identity and location register register with the stream of described mobile node by strategy, and the sign of adding described identity and location register register in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Further, also comprise:
Described identity and location register register are nullified this identity in the strategy request list object and the sign of location register register to described strategic server request when knowing that described mobile node leaves this identity and location register register;
Described strategic server is nullified the sign of described identity and location register register according to the request of described identity and location register register in described strategy request list object.
Further, also comprise:
Described access service router after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described access service router with the stream of described mobile node by strategy, and the sign of adding described access service router in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Further, also comprise:
Described access service router is nullified the sign of this access service router in the strategy request list object to described strategic server request when knowing that described mobile node leaves;
Described strategic server is nullified the sign of described access service router according to the request of described access service router in described strategy request list object.
Further, a kind of method of address of acquisition strategy server comprises:
The access service router is after mobile node is by authentication, send registration request to identity and location register register, carry policy server address request option in this registration request, asking provides the address properties of stream by the strategic server of strategy for mobile node;
After described identity and location register register receive described registration request, according to described policy server address request option, obtain the address properties of described strategic server from authentication, mandate, charging (AAA) server, the address properties of the strategic server that gets is sent to described access service router.
Further, the described address properties that obtains described strategic server from aaa server comprises:
Described identity and location register register send the AAA request message to described aaa server, carry the option of request strategy server address in this AAA request message;
After described aaa server receives described AAA request message, when carrying the option of described request policy server address in described AAA request message, search the address properties of corresponding strategic server according to the sign of mobile node, the address properties of the strategic server that finds is returned to described identity and location register register.
Further, also comprise:
Described access service router after receiving the address properties of described strategic server from described identity and location register register, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described access service router with the stream of described mobile node by strategy, and the sign of adding described access service router in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Further, also comprise:
Described access service router is nullified the sign of this access service router in the strategy request list object to described strategic server request when knowing that described mobile node leaves;
Described strategic server is nullified the sign of described access service router according to the request of described access service router in described strategy request list object.
Further, also comprise:
Described identity and location register register after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described identity and location register register with the stream of described mobile node by strategy, and the sign of adding described identity and location register register in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Further, also comprise:
Described identity and location register register are nullified this identity in the strategy request list object and the sign of location register register to described strategic server request when knowing that described mobile node leaves this identity and location register register;
Described strategic server is nullified the sign of described identity and location register register according to the request of described identity and location register register in described strategy request list object.
Further, a kind of stream that obtains is comprised by the method for strategy:
Strategic server is at the stream of network element request mobile node during by strategy, the stream of described mobile node is sent to described network element by strategy, and the sign of adding described network element in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node;
When described strategic server is changed by strategy at the stream of mobile node, according to the stream of the request mobile node that records in the described strategy request list object sign by the network element of strategy, the stream that upgrades is pushed to network element by strategy.
Further, a kind of access service router comprises: authentication ' unit, wherein:
Described authentication ' unit is used in the process that mobile node is authenticated, from authentication, mandate, charging (AAA) server is retrieved as described mobile node that the address properties of stream by the strategic server of strategy is provided.
Further, described authentication ' unit, concrete being used for carried the attribute-value of the address of asking described strategic server to (AVP) at the AAA request message that sends to described aaa server; Perhaps, directly the AAA request message of described AVP is not carried in transmission, to the address properties of the described strategic server of described aaa server request.
Further, also comprise registering unit, wherein:
Described registering unit is used for after described mobile node is by authentication, sends registration request to identity and location register register, carries the address properties of strategic server in described registration request.
Further, also comprise the strategy request unit, wherein:
Described strategy request unit is used for after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy.
Further, also comprise identifying and nullify the unit, wherein:
Described sign is nullified the unit, is used for nullifying the sign of this access service router in the strategy request list object to described strategic server request when knowing that mobile node leaves.
Further, a kind of identity and location register register comprise: message sink unit and strategy request unit, wherein:
Described message sink unit is used for receiving registration request;
Described strategy request unit is used for after receiving described registration request, according to the address properties of the strategic server that carries in described registration request, to the stream of strategic server request mobile node by strategy.
Further, also comprise identifying and nullify the unit, wherein:
Described sign is nullified the unit, is used for when knowing that mobile node leaves this identity and location register register this identity to strategic server request cancellation in the strategy request list object and the sign of location register register.
Further, a kind of strategic server comprises: tactful transmitting element and strategy request list object maintenance unit, wherein:
Described tactful transmitting element is used for sending to the request stream by the network element of strategy by strategy the stream of mobile node;
Described strategy request list object maintenance unit, be used for adding the described request stream by the sign of the network element of strategy at the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Further, described strategy request list object maintenance unit also is used for nullifying the sign of network element in described strategy request list object after receiving the de-registration request of network element
Further, a kind of authentication, mandate, charging (AAA) server comprise: message sink unit, address search unit and information transmitting unit, wherein:
Described message sink unit is used for receiving the AAA request message;
The address properties of the strategic server of correspondence is searched during to (AVP) in described address search unit, the attribute-value of address that is used for carrying the request strategy server at described AAA request message according to the sign of mobile node; Perhaps, after receiving described AAA request message, directly search the address properties of corresponding strategic server according to the sign of mobile node;
Described information transmitting unit, the address properties that is used for strategic server that described address search unit is found returns to the access service router.
Further, a kind of access service router comprises: registering unit, wherein:
Described registering unit, be used for after mobile node is by authentication, send registration request to identity and location register register, carry policy server address request option in this registration request, asking provides the address properties of stream by the strategic server of strategy for mobile node.
Further, a kind of identity and location register register comprise: message sink unit and address acquisition unit, wherein:
Described message sink unit is used for receiving registration request;
Described address acquisition unit, for the policy server address request option that carries according to described registration request, obtain the address properties of described strategic server from authentication, mandate, charging (AAA) server, the address properties of the strategic server that gets is sent to the access service router.
Further, described address acquisition unit, concrete being used for sends the AAA request message to described aaa server, carries the option of request strategy server address in this AAA request message.
Further, a kind of authentication, mandate, charging (AAA) server comprise: message sink unit, address search unit and information transmitting unit, wherein:
Described message sink unit is used for receiving the AAA request message;
Described address search unit is used for searching the address properties of corresponding strategic server according to the sign of mobile node when described AAA request message carries the option of request strategy server address;
Described information transmitting unit, the address properties that is used for the strategic server that will find returns to identity and location register register.
Further, a kind of strategic server comprises: tactful transmitting element, strategy request list object maintenance unit and stream are by tactful push unit, wherein:
Described tactful transmitting element when being used for stream at network element request mobile node by strategy, sends to described network element with the stream of described mobile node by strategy;
Described slightly request object list maintenance unit, be used for adding at the strategy request list object sign of described network element, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node;
Described stream is by tactful push unit, is used for when the stream of mobile node is changed by strategy, according to the stream of the request mobile node that records in the described strategy request list object sign by the network element of strategy, the stream that upgrades is pushed to network element by strategy.
In sum, the present invention is by getting the address of the strategic server of mobile node from aaa server in authentication or registration process, making ASR or ILR need to be that the suitable stream of the service selection initiated of peer node is by front by strategy according to the stream of the mobile node of many interfaces, can according to the address of the strategic server of mobile node, obtain the stream of mobile node by strategy from strategic server.
Description of drawings
Fig. 1 is the architectures of communication networks schematic diagram that identity of the prior art is separated with the position;
Fig. 2 is the repeating process schematic diagram of message of the prior art in identity and locator separation network;
Fig. 3 is original AID message schematic diagram of the prior art;
Fig. 4 is RID encapsulated message schematic diagram of the prior art;
Fig. 5 is the schematic diagram that many interfaces MN distinct interface of the prior art is connected to different ASR;
Fig. 6 is the schematic diagram that many interfaces MN distinct interface of the prior art is connected to identical ASR;
Fig. 7 is the communication network connection diagram in the present invention;
Fig. 8 is the flow chart of the ASR/ILR acquisition strategy server address embodiment 1 in the present invention;
Fig. 9 is the flow chart of the ASR/ILR acquisition strategy server address embodiment 2 in the present invention;
Figure 10 is that the strategic server in the present invention pushes stream by the flow chart of policy update embodiment 3;
Figure 11 is the flow chart that embodiment 4 is nullified in the strategic server binding in the present invention;
Figure 12 is the Organization Chart of the access service router in the present invention;
Figure 13 is identity in the present invention and the Organization Chart of location register register;
Figure 14 is the Organization Chart of the strategic server in the present invention;
Figure 15 is the Organization Chart of the aaa server in the present invention.
Embodiment
Present embodiment has proposed a kind of in identify label and locator separation network, and ASR and ILR find the method for terminal institute relative strategy server address.ASR and ILR obtain stream by strategy according to this address from strategic server, for being sent to the Business Stream of many interface terminations, select most suitable route.
In order more clearly to describe the content of present embodiment, carry out following explanation:
(1) CN is the correspondent node of MN, and CN can have a plurality of.
(2) MN_IF1 refers to the interface 1 of current MN.
(3) MN_IF2 refers to the interface 2 of current MN.
(4) flow X refers to be initiated by CN, to the data flow X of MN.
(5) in the present embodiment, the implication of multiple access refers to, at first MN is the terminal that has multiple communication standard (as 3G, LTE and WLAN etc.), secondly MN can be simultaneously interface by different communication standards be attached to network.
(6) in the present embodiment, stream can be divided into passive flow routing policy and dynamic flow routing policy by strategy.The passive flow routing policy comprises according to the selection strategy of stream attribute (as address, port numbers and five-tuple etc.), according to the selection strategy of APN (Access Point Name, access point), according to the selection strategy of busy period with according to selection strategy of carrier policy etc.; The dynamic flow routing policy comprises based on the dynamic routing strategy of end side and the dynamic routing strategy of side Network Based.Dynamic routing strategy based on end side comprises the connection status of the many interfaces of terminal and terminal use's selection wish etc.; The dynamic routing strategy of side Network Based comprises the link of network and load state etc.Stream is all left on strategic server by strategy, and strategic server is deployed in marked network.
The method of the address of the acquisition strategy server of present embodiment comprises:
From the address that authentication, mandate, charging (AAA) server obtain the strategic server of mobile node, comprise following two kinds of implementations in authentication or registration process:
(1) ASR in the access authentication procedure of MN, obtains the address of the strategic server of MN from AAA server.ILR is to obtain the address of the strategic server of MN in the registration process of MN at ASR.
(2) ILR obtains the address of the strategic server of MN from AAA server.ASR obtains the address of the strategic server of MN from ILR in the registration process that is MN.
In addition, when strategic server was changed by strategy at the stream of MN, the stream that active push is upgraded was by strategy.
When MN left ASR/ILR, ASR/ILR nullified the record of the ASR/ILR in the strategy request list object of binding with MN on strategic server to strategic server.
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
The below describes in conjunction with the method for figure following examples to present embodiment take communication network shown in Figure 7 as the basis.
Embodiment 1:
Fig. 8 is the flow process of the embodiment 1 of ASR/ILR acquisition strategy server address, comprising:
Step 801: many interfaces MN comprises two interface IF1 and IF2, when MN passes through wherein a certain interface, when being attached to network as interface IF1 by ASR1, in the connection procedure of IF1, ASR1 obtains the address of the strategic server of service MN by AAA server in verification process;
Method one, ASR1 is when the request of initiating to AAA server, if do not preserve the information of address of the strategic server of MN on ASR1, it carries the AVP (Attribute-Value-Pairs, attribute-value to) of the address of request strategy server in the AAA request message.After AAA server receives the AAA request, search according to MN_ID (Identity), (this attribute can be the address to carry the address properties of the strategic server of MN in the AAA response message, it can be also domain name, if domain name, ASR1 need to pass through DNS (domain name system) query script, the address of acquisition strategy server) to ASR1.
Method two, ASR1 sends AAA and asks the server to AAA, and AAA server is after receiving the AAA request, in being back to the AAA response message of ASR1, initiatively carry the address properties (illustrating the same) of the strategic server of MN to ASR1, inform the policy server address of its MN.
The AVP of the request strategy server address of describing in said method can realize by the new attribute of expansion aaa protocol (as radius, diameter).
Step 802, after MN was by authentication, ASR1 initiated registration request to ILR, identify label and the station location marker of registration MN, and carry the option of the address of strategic server in registration request.
Step 803, ILR receives the registration request that comes from ASR1, according to the option of the address of the strategic server in registration request, obtain address or the domain name of the strategic server of MN, if domain name, ILR need to pass through DNS query script, acquisition strategy server address.
Step 804, ILR is according to the address of the strategic server that obtains, to the stream of strategic server request MN by strategy.
After strategic server was received request, the stream of transmission MN to ILR, created and safeguards the strategy request list object of MN, for example: (MN_ID, ILR_ID, ASR1_ID) by strategy simultaneously.Step 804 and step 805 are without precedence.
Step 805, ASR1 is according to the policy server address that obtains, to the stream of strategic server request MN by strategy.
After strategic server was received request, the stream that sends MN to ASR1, and created and safeguards the strategy request list object of MN by strategy, for example: (MN_ID, ILR_ID, ASR1_ID).Step 805 and step 804 are without precedence.
Embodiment 2:
Fig. 9 is the embodiment two of ASR/ILR acquisition strategy server address.Specifically comprise the following steps:
Step 901, MN_IF1 is connected to network by ASR1.
Step 902, after MN was by authentication, ASR1 initiated registration request to ILR, identify label and the station location marker of registration MN, and carry policy server address request option in registration request.
Step 903, when ILR finds to have carried policy server address request option in the ASR1 registration request, ILR will with AAA server reciprocal process in (this reciprocal process be used for to be authorized the mobility service of MN or the ability of authentication ILR etc.), send the AAA request to AAA server, wherein carry the option of request strategy server address.
Step 904, after AAA server received the AAA request that comes from ILR, according to the option of wherein request strategy server address, the address properties that carries strategic server in response message (can be address or domain name in this attribute.If domain name, ILR need to inquire about the address that obtains the acquisition strategy server by DNS) to ILR.
Step 905, after the AAA response message of receiving the address properties that carries policy service that comes from AAA server, the address properties of ILR acquisition strategy server from response message, and generate and safeguard mapping relations (AID, RID1, IF1) for MN.ILR sends registration confirmation message to ASR1, carries the policy server address attribute in acknowledge message.
Step 906, ASR1 obtains the strategic server of MN from the registration confirmation message of receiving address properties (can be address or domain name in this attribute.If domain name, ASR1 need to inquire about the address that obtains the acquisition strategy server by DNS).
Step 907, ILR is according to the address properties of the strategic server that obtains, to the stream of strategic server request MN by strategy.
After strategic server was received request, the stream that sends MN to ILR, and created and safeguards the strategy request list object of MN by strategy, for example: (MN_ID, ILR_ID, ASR1_ID).Step 907 and step 905, step 906, step 908 are without precedence.
Step 908, ASR1 is according to the address properties of the strategic server that obtains, to the stream of strategic server request MN by strategy.
After strategic server was received request, the stream that sends MN to ASR1, and created and safeguards the strategy request list object of MN by strategy, for example: (MN_ID, ILR_ID, ASR1_ID).Step 908 and step 907 are without precedence.
Embodiment 3:
Figure 10 is that stream is by policy update embodiment.Specifically comprise the following steps:
Step 1001, because the variation of terminal, network element entity, user or carrier policy, when causing the stream of MN on strategic server to be changed by strategy, strategic server will be according to the strategy request list object of its MN that safeguards, and the stream that changes to these object network element active push is by strategy.
For example: have the strategy request list object (MN_ID with the ID of MN binding on strategic server, ILR_ID, ASR1_ID, ASR2_ID), wherein ILR_ID, ASR1_ID can be the address informations of ILR and ASR1, ASR2_ID can be the address information of CN_ASR, and the MN stream after strategic server will upgrade to ILR, ASR1, ASR2 active push is by strategy.
The stream of MN after step 1002, strategic server are upgraded to the ASR1 active push is by strategy.Step 1002 and step 1004, step 1006 are without precedence.
Step 1003, ASR1 is after the MN stream of receiving the strategic server propelling movement is by strategy, and the MN stream existing to ASR1 upgraded by strategy, and sends stream by pushing acknowledge message to strategic server.
The stream of MN after step 1004, strategic server are upgraded to the ILR active push is by strategy.Step 1004 and step 1002, step 1006 are without precedence.
Step 1005, ILR is after the MN stream of receiving the strategic server propelling movement is by strategy, and the MN stream existing to ILR upgraded by strategy, and sends stream by pushing acknowledge message to strategic server.
Step 1006, strategic server pushes the stream of the MN after upgrading by strategy to ASR3.Step 1006 and step 1002, step 1004 are without precedence.
Step 1007, ASR2 is after the CN stream of receiving the strategic server propelling movement is by strategy, and the CN stream existing to ASR2 upgraded by strategy, and sends stream by pushing acknowledge message to strategic server.
Embodiment 4:
Figure 11 is the cancellation embodiment of the strategy request list object of MN on strategic server.Specifically comprise the following steps:
Step 1101, after ASR1 knew that MN leaves, ASR1 initiated to nullify the request of mapping relations to ILR.
For example: the cancellation of the mapping relations (AID, RID1, IF1) that ILR safeguards.
Step 1102, the mapping relations that the ILR removal request is nullified, and send the cancellation acknowledge message to ASR1.
Step 1103, ASR1 initiate to nullify the request of ASR1_ID in the strategy request list object of MN to strategic server.
For example: have the strategy request list object (MN_ID with the ID of MN binding on strategic server, ILR_ID, ASR1_ID), wherein recorded and asked the stream of MN by the identification information of the relevant network element of strategy, the information relevant with oneself in ASR1 request delete list.Step 803, step 804 and 802 are without precedence.
Step 1104, after strategic server is received de-registration request, the record relevant to ASR1 in the strategy request list object of cancellation MN.
Such as: comprise ASR1 address information, ASR2 address information etc. in the strategy request list object, after strategic server is received the ASR1 de-registration request, will nullify the address information of ASR1.
Step 1105, after nullifying the strategy request list object record relevant to ASR1, strategic server sends to ASR1 and nullifies acknowledge message.
Step 1106, after ILR knew that MN leaves ILR, ILR initiate to nullify the request of ILR_ID in the strategy request list object of MN to strategic server;
For example: after MN shutdown or movement were registered to another ILR, former ASRs had nullified the mapping relations of MN to former ILR, and former ILR does not receive the registration request of the MN that new ASR sends in certain lifetime, and ILR can think that this moment, MN left ILR.So ILR initiate to nullify ILR_ID request in strategy request list object with the ID binding of MN to strategic server.
Step 1107, strategic server receive in the strategy request list object of ID binding of the cancellation of ILR and MN after the ILR_ID request, and strategic server is nullified in the strategy request list object of MN and the ILR relative recording.
Such as: comprise ILR1 address information, ILR2 address information etc. in the strategy request list object, after strategic server received that ILR1 nullifies the request of ILR1 record, strategic server was nullified the address information of ILR1.Step 1107, step 1106 and 1102 are without precedence.
Step 1108, after nullifying the strategy request list object record relevant to ILR, strategic server sends to ILR and nullifies acknowledge message.
As shown in figure 12, the invention provides a kind of access service router, comprising: authentication ' unit, registering unit, strategy request unit and sign are nullified the unit, wherein:
Authentication ' unit is used in the process that mobile node is authenticated, from authentication, mandate, charging (AAA) server is retrieved as mobile node that the address properties of stream by the strategic server of strategy is provided.
Authentication ' unit, the attribute-value of concrete address for carry the request strategy server at the AAA request message that sends to aaa server is to (AVP); Perhaps, directly the AAA request message of AVP is not carried in transmission, to the address properties of aaa server request strategy server.
Registering unit is used for after mobile node is by authentication, sends registration request to identity and location register register, carries the address properties of strategic server in registration request.
The strategy request unit is used for after getting the address properties of strategic server, according to the address properties of strategic server, to the stream of strategic server request mobile node by strategy.
Sign is nullified the unit, is used for nullifying the sign of this access service router in the strategy request list object to the strategic server request when knowing that mobile node leaves.
As shown in figure 13, present embodiment provides a kind of identity and location register register, comprising: message sink unit, strategy request unit and sign are nullified the unit, wherein:
The message sink unit is used for receiving registration request;
The strategy request unit is used for after receiving registration request, according to the address properties of the strategic server that carries in registration request, to the stream of strategic server request mobile node by strategy.
Sign is nullified the unit, is used for when knowing that mobile node leaves this identity and location register register this identity to strategic server request cancellation in the strategy request list object and the sign of location register register.
As shown in figure 14, present embodiment provides a kind of strategic server, comprising: tactful transmitting element and strategy request list object maintenance unit, wherein:
The strategy transmitting element is used for sending to the request stream by the network element of strategy by strategy the stream of mobile node;
Strategy request list object maintenance unit, be used for adding the request stream by the sign of the network element of strategy at the strategy request list object, wherein, the strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
Strategy request list object maintenance unit also is used for nullifying the sign of network element in the strategy request list object after receiving the de-registration request of network element.
As shown in figure 15, present embodiment provides a kind of aaa server, comprising: message sink unit, address search unit and information transmitting unit, wherein:
The message sink unit is used for receiving the AAA request message;
The address properties of the strategic server of correspondence is searched during to (AVP) in address search unit, the attribute-value of address that is used for carrying the request strategy server at the AAA request message according to the sign of mobile node; Perhaps, after receiving the AAA request message, directly search the address properties of corresponding strategic server according to the sign of mobile node;
Information transmitting unit, the address properties that is used for strategic server that the address search unit is found returns to the access service router.
Another kind of access service router provided by the invention comprises: registering unit, wherein:
Registering unit, be used for after mobile node is by authentication, send registration request to identity and location register register, carry policy server address request option in this registration request, asking provides the address properties of stream by the strategic server of strategy for mobile node.
The another kind of identity that present embodiment provides and location register register comprise: message sink unit and address acquisition unit, wherein:
The message sink unit is used for receiving registration request;
Described address acquisition unit, for the policy server address request option that carries according to registration request, from the address properties of authentication, mandate, charging (AAA) server acquisition strategy server, the address properties of the strategic server that gets is sent to the access service router.
Address acquisition unit, concrete being used for sends the AAA request message to aaa server, carries the option of request strategy server address in this AAA request message.
The another kind of aaa server that present embodiment provides comprises: message sink unit, address search unit and information transmitting unit, wherein:
The message sink unit is used for receiving the AAA request message;
The address search unit is used for searching the address properties of corresponding strategic server according to the sign of mobile node when the AAA request message carries the option of request strategy server address;
Information transmitting unit, the address properties that is used for the strategic server that will find returns to identity and location register register.
The another kind of strategic server that present embodiment provides comprises: tactful transmitting element, strategy request list object maintenance unit and stream are by tactful push unit, wherein:
The strategy transmitting element when being used for stream at network element request mobile node by strategy, sends to network element with the stream of mobile node by strategy;
Request object list maintenance unit slightly is used for adding at the strategy request list object sign of network element, and wherein, the stream that the strategy request list object is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node;
Stream is by tactful push unit, is used for when the stream of mobile node is changed by strategy, according to the stream of the request mobile node that records in the strategy request list object sign by the network element of strategy, the stream that upgrades is pushed to network element by strategy.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (29)
1. the method for the address of an acquisition strategy server, is characterized in that, comprising:
The access service router is in the process that mobile node is authenticated, from authentication, mandate, charging (AAA) server is retrieved as described mobile node that the address properties of stream by the strategic server of strategy is provided.
2. the method for claim 1, is characterized in that, describedly is retrieved as described mobile node from aaa server the address properties of stream by the strategic server of strategy is provided, and comprising:
Described access service router carries the attribute-value of the address of asking described strategic server to (AVP) in the AAA request message that sends to described aaa server;
After described aaa server receives described AAA request message, when carrying described AVP in described AAA request message, search the address properties of corresponding strategic server according to the sign of mobile node, the address properties of the strategic server that finds is returned to described access service router.
3. the method for claim 1, is characterized in that, describedly is retrieved as described mobile node from aaa server the step of stream by the address properties of the strategic server of strategy is provided, and comprising:
Described access service router sends the AAA request message to described aaa server;
Described aaa server is searched the address properties of corresponding strategic server according to the sign of mobile node after receiving described AAA request message, the address properties of the strategic server that finds is returned to described access service router.
4. the method for claim 1, is characterized in that, also comprises:
Described access service router sends registration request to identity and location register register after described mobile node is by authentication, carry the address properties of strategic server in described registration request;
Described identity and location register register after receiving described registration request, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described identity and location register register with the stream of described mobile node by strategy, and the sign of adding described identity and location register register in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
5. method as claimed in claim 4, is characterized in that, also comprises:
Described identity and location register register are nullified this identity in the strategy request list object and the sign of location register register to described strategic server request when knowing that described mobile node leaves this identity and location register register;
Described strategic server is nullified the sign of described identity and location register register according to the request of described identity and location register register in described strategy request list object.
6. the method for claim 1, is characterized in that, also comprises:
Described access service router after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described access service router with the stream of described mobile node by strategy, and the sign of adding described access service router in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
7. method as claimed in claim 6, is characterized in that, also comprises:
Described access service router is nullified the sign of this access service router in the strategy request list object to described strategic server request when knowing that described mobile node leaves;
Described strategic server is nullified the sign of described access service router according to the request of described access service router in described strategy request list object.
8. the method for the address of an acquisition strategy server, is characterized in that, comprising:
The access service router is after mobile node is by authentication, send registration request to identity and location register register, carry policy server address request option in this registration request, asking provides the address properties of stream by the strategic server of strategy for mobile node;
After described identity and location register register receive described registration request, according to described policy server address request option, obtain the address properties of described strategic server from authentication, mandate, charging (AAA) server, the address properties of the strategic server that gets is sent to described access service router.
9. method as claimed in claim 8, is characterized in that, the described address properties that obtains described strategic server from aaa server comprises:
Described identity and location register register send the AAA request message to described aaa server, carry the option of request strategy server address in this AAA request message;
After described aaa server receives described AAA request message, when carrying the option of described request policy server address in described AAA request message, search the address properties of corresponding strategic server according to the sign of mobile node, the address properties of the strategic server that finds is returned to described identity and location register register.
10. method as claimed in claim 8, is characterized in that, also comprises:
Described access service router after receiving the address properties of described strategic server from described identity and location register register, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described access service router with the stream of described mobile node by strategy, and the sign of adding described access service router in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
11. method as claimed in claim 10 is characterized in that, also comprises:
Described access service router is nullified the sign of this access service router in the strategy request list object to described strategic server request when knowing that described mobile node leaves;
Described strategic server is nullified the sign of described access service router according to the request of described access service router in described strategy request list object.
12. method as claimed in claim 8 is characterized in that, also comprises:
Described identity and location register register after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy;
Described strategic server sends to described identity and location register register with the stream of described mobile node by strategy, and the sign of adding described identity and location register register in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
13. method as claimed in claim 12 is characterized in that, also comprises:
Described identity and location register register are nullified this identity in the strategy request list object and the sign of location register register to described strategic server request when knowing that described mobile node leaves this identity and location register register;
Described strategic server is nullified the sign of described identity and location register register according to the request of described identity and location register register in described strategy request list object.
14. one kind is obtained stream by the method for strategy, it is characterized in that, comprising:
Strategic server is at the stream of network element request mobile node during by strategy, the stream of described mobile node is sent to described network element by strategy, and the sign of adding described network element in the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node;
When described strategic server is changed by strategy at the stream of mobile node, according to the stream of the request mobile node that records in the described strategy request list object sign by the network element of strategy, the stream that upgrades is pushed to network element by strategy.
15. an access service router is characterized in that, comprising: authentication ' unit, wherein:
Described authentication ' unit is used in the process that mobile node is authenticated, from authentication, mandate, charging (AAA) server is retrieved as described mobile node that the address properties of stream by the strategic server of strategy is provided.
16. access service router as claimed in claim 15 is characterized in that:
Described authentication ' unit, concrete being used for carried the attribute-value of the address of asking described strategic server to (AVP) at the AAA request message that sends to described aaa server; Perhaps, directly the AAA request message of described AVP is not carried in transmission, to the address properties of the described strategic server of described aaa server request.
17. the access service router, is characterized in that as claimed in claim 15, also comprises registering unit, wherein:
Described registering unit is used for after described mobile node is by authentication, sends registration request to identity and location register register, carries the address properties of strategic server in described registration request.
18. the access service router, is characterized in that as claimed in claim 15, also comprises the strategy request unit, wherein:
Described strategy request unit is used for after getting the address properties of described strategic server, according to the address properties of described strategic server, to the stream of the described mobile node of strategic server request by strategy.
19. the access service router, is characterized in that as claimed in claim 15, also comprise identifying nullifying the unit, wherein:
Described sign is nullified the unit, is used for nullifying the sign of this access service router in the strategy request list object to described strategic server request when knowing that mobile node leaves.
20. an identity and location register register is characterized in that, comprising: message sink unit and strategy request unit, wherein:
Described message sink unit is used for receiving registration request;
Described strategy request unit is used for after receiving described registration request, according to the address properties of the strategic server that carries in described registration request, to the stream of strategic server request mobile node by strategy.
21. identity as claimed in claim 20 and location register register is characterized in that, also comprise identifying nullifying the unit, wherein:
Described sign is nullified the unit, is used for when knowing that mobile node leaves this identity and location register register this identity to strategic server request cancellation in the strategy request list object and the sign of location register register.
22. a strategic server is characterized in that, comprising: tactful transmitting element and strategy request list object maintenance unit, wherein:
Described tactful transmitting element is used for sending to the request stream by the network element of strategy by strategy the stream of mobile node;
Described strategy request list object maintenance unit, be used for adding the described request stream by the sign of the network element of strategy at the strategy request list object, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node.
23. strategic server as claimed in claim 22 is characterized in that:
Described strategy request list object maintenance unit also is used for nullifying the sign of network element in described strategy request list object after receiving the de-registration request of network element.
24. an authentication, mandate, charging (AAA) server is characterized in that, comprising: message sink unit, address search unit and information transmitting unit, wherein:
Described message sink unit is used for receiving the AAA request message;
The address properties of the strategic server of correspondence is searched during to (AVP) in described address search unit, the attribute-value of address that is used for carrying the request strategy server at described AAA request message according to the sign of mobile node; Perhaps, after receiving described AAA request message, directly search the address properties of corresponding strategic server according to the sign of mobile node;
Described information transmitting unit, the address properties that is used for strategic server that described address search unit is found returns to the access service router.
25. an access service router is characterized in that, comprising: registering unit, wherein:
Described registering unit, be used for after mobile node is by authentication, send registration request to identity and location register register, carry policy server address request option in this registration request, asking provides the address properties of stream by the strategic server of strategy for mobile node.
26. an identity and location register register is characterized in that, comprising: message sink unit and address acquisition unit, wherein:
Described message sink unit is used for receiving registration request;
Described address acquisition unit, for the policy server address request option that carries according to described registration request, obtain the address properties of described strategic server from authentication, mandate, charging (AAA) server, the address properties of the strategic server that gets is sent to the access service router.
27. identity as claimed in claim 26 and location register register is characterized in that:
Described address acquisition unit, concrete being used for sends the AAA request message to described aaa server, carries the option of request strategy server address in this AAA request message.
28. an authentication, mandate, charging (AAA) server is characterized in that, comprising: message sink unit, address search unit and information transmitting unit, wherein:
Described message sink unit is used for receiving the AAA request message;
Described address search unit is used for searching the address properties of corresponding strategic server according to the sign of mobile node when described AAA request message carries the option of request strategy server address;
Described information transmitting unit, the address properties that is used for the strategic server that will find returns to identity and location register register.
29. a strategic server is characterized in that, comprising: tactful transmitting element, strategy request list object maintenance unit and stream are by tactful push unit, wherein:
Described tactful transmitting element when being used for stream at network element request mobile node by strategy, sends to described network element with the stream of described mobile node by strategy;
Described slightly request object list maintenance unit, be used for adding at the strategy request list object sign of described network element, wherein, the described strategy request list object stream that is used for the record request mobile node is by the correspondence relationship information of the sign of the sign of the network element of strategy and mobile node;
Described stream is by tactful push unit, is used for when the stream of mobile node is changed by strategy, according to the stream of the request mobile node that records in the described strategy request list object sign by the network element of strategy, the stream that upgrades is pushed to network element by strategy.
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| CN201110364904.9A CN103117927B (en) | 2011-11-17 | 2011-11-17 | A kind of method of the address of acquisition strategy server |
| PCT/CN2012/083725 WO2013071817A1 (en) | 2011-11-17 | 2012-10-30 | Policy server address acquisition method |
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| CN201110364904.9A CN103117927B (en) | 2011-11-17 | 2011-11-17 | A kind of method of the address of acquisition strategy server |
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| WO2013071817A1 (en) | 2013-05-23 |
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