CN102938919A - Selectable route optimization method of distributed mobile management - Google Patents
Selectable route optimization method of distributed mobile management Download PDFInfo
- Publication number
- CN102938919A CN102938919A CN2012104591251A CN201210459125A CN102938919A CN 102938919 A CN102938919 A CN 102938919A CN 2012104591251 A CN2012104591251 A CN 2012104591251A CN 201210459125 A CN201210459125 A CN 201210459125A CN 102938919 A CN102938919 A CN 102938919A
- Authority
- CN
- China
- Prior art keywords
- router
- couple
- session
- option
- prefix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
Provided is a selectable route optimization method of distributed mobile management. An option of an agency mobile internet protocol version 6 (IPv6) is set to send out along carrying of agency mobile IPv6 message in a conversation building and keeping process to enable a router to conveniently select and execute corresponding route optimizing strategies according to user requests or configuration characteristics of the local router, simultaneously diversification supports on the optimizing strategies are provided for an agency mobile IPv6 network to fine and optimize supports of different applications through the network. The option is a mobile option with variable length and containing zero, one or a plurality of type-length-value codes, and the total word length of the option is integral multiples of 8 bits. A region and a coding format follow requirements for 6.2 bits of RFC3775 to enable a mobile access gateway to ignore and skip unrecognizable option number and option contents. The selectable route optimization method can be applicable to various application fields and has good popularization and application prospects.
Description
Technical field
The present invention relates to a kind of selectable distributed mobile management routing optimization method, exactly, relate to a kind of mobile IP v 6 (Mobile IPv6) and proxy mobile IPv 6 (Proxy Mobile IPv6) agreement of relating to, by carrying the message option of Mobile IP, so that the anchor point of BlueDrama (couple in router) can carry out to the session of new initiation the identification of routing optimality demand, and then in the fast mobile terminal process, session is used different routing optimality strategies and realized the routing optimization method that optimisation strategy is polynary and controlled, the technical field that belongs to multimedia communication
Background technology
The route of traditional IP bag and service Quality Control Technology only are the five-tuple information that comprises source address, destination address, source port, destination interface and protocol type in the analyzing IP packet header, to determine the essential information of flow.The information that the Traditional IP router also just obtains according to five-tuple realize to a certain degree route and the assurance of service quality.But along with popularizing and mobile network's extensive use of mobile device, the movement of mobile device between diverse access point usually can be broken the rule of original fixed network session five-tuple.And Mobile IP can be supported the use of portable terminal under situation of movement, when utilizing home agent, Foreign Agent and address mapping relation to solve the new address that fast mobile terminal obtains, how to keep the problem of already-existing session.
Mobile IPv 6 takes full advantage of the IPv6 agreement to ambulant inherent the support.At first, router at router broadcast message indicating it whether can serve as local agent.Allow to exist a plurality of local agents in the same subnet, mobile node can be to any one local agent registration.Local agent is preserved the home address of mobile node and the table of comparisons of Care-of Address, after it receives the message that sends to mobile node, gives mobile node message repeating according to this table of comparisons.In addition, after mobile node receives the message that other main frames send, in response message with Care-of Address as source address, and to attach the home address of mobile node; The subsequent packet of other main frames is just take the Care-of Address of mobile node as destination address.But attach source routing and select header, header content is the home address of mobile node.The purpose of using this mechanism is that the assurance mobile node can not lost message in moving process.At last, defined redirection process among the IPv6.When mobile node switched in the minizone, after mobile node re-registered successfully, redirection message should be sent out to original base station in the base station, made that route message devious can pick up mobile node in the handoff procedure.
Along with the development of mobile IP technology and the promotion of IPv6 agreement, the network equipment is supported all to have born more function for foundation, maintenance and the position of session than terminal, and the proxy mobile IPv 6 agreement is arisen at the historic moment.The proxy mobile IPv 6 agreement is a kind of based on network localized mobility management agreement, compare with other mobile IPv 6 protocols (such as mobile IPv 6 protocol, fast transfer IPv6 agreement, level IPv6 agreement), the proxy mobile IPv 6 agreement does not need mobile node to participate in any with mobile relevant decision-making, network entity is responsible for following the tracks of the movement of mobile node, and initiates and mobile relevant signalling.In addition, this agreement also guarantees need not change the IPv6 address when mobile node is roamed in whole territory.These characteristics can improve it to the control ability of network for operator.And for the mobile subscriber, then can reduce the design complexities of terminal protocol stack, thereby reduce device resource and energy consumption.
Be subject to the impact of communication network, the deployment of mobile Internet more is tending towards centralized management.This form depends on an independent mobile anchor node terminal equipment is carried out mobility support, and still, there are following three problems usually in this form:
1, the non-optimum of route when particularly the server in content distributing network is pushed to network edge, causes the propagation delay time between mobile subscriber and the content server very large, and load unnecessary in the core net is also too much.
2, extensibility is bad, and because the growth along with mobile subscriber's quantity of the quantity of anchor node increases, along with the increase of business, the mobile anchor node can be more and more crowded.
3, mobility support carries out according to " each node " rather than " each stream ", and it is impossible that this will cause " unloading " of some flow to become.People can not expect that the optimization ability of route is present in each Correspondent Node.When all must pass through central anchor node from mobile node with the flow that mails to mobile node, afore-mentioned had just worsened.Particularly when the communication of mobile node is created in the fixed position.
The problem that exists in order to solve centralized management, the thought of distributed mobile management is fermented formation in beginning in the industry cycle.The purport of distributed mobile management is based on the framework of mobile IP v 6 and proxy mobile IPv 6, anchor node in the centralized management is come for management function and the fractionation of data retransmission function of terminal, so that anchor node only is responsible for the management function of terminal, the data retransmission function is placed on the nearlyer couple in router that is connected to network edge.Anchor node issues prefix or address by couple in router to terminal, and the data traffic that mails to terminal will directly be transmitted by couple in router, no longer detour and be responsible for the anchor node of terminal management function.With regard to alleviated the load that data are processed for the anchor node of being responsible for mobile management, increase extensibility like this, reduced the possibility of Single Point of Faliure.Simultaneously, because anchor node has been broken away from the data retransmission function, make it in management function greater flexibility arranged, routing optimality and the flow control possible for future provide larger space.
Summary of the invention
In view of this, the routing optimization method that the purpose of this invention is to provide a kind of selectable distributed mobile management, the method is so that network can be according to its needs and characteristics selection and the optimisation strategy of carrying out differentiation to the existing and following mobile Internet application.Because there is the routing optimality solution of " optimum " hardly in characteristics that mobile Internet is used and the demand of service quality varied, take unified optimisation strategy obviously can not satisfy the demand of application itself.In addition, be subject to the impact of possible network topology, different couple in routers may be unwilling as the anchor node of session because of certain cause specific, and perhaps different application may be avoided intentionally on current couple in router grappling is carried out in session.Consider that based on this some the present invention is used for client to couple in router and its required routing optimality strategy of anchor point request at the proxy mobile IPv 6 framework mobility option of having given a definition, and also can be used for carrying out between the couple in router negotiation of routing optimality strategy.
In order to achieve the above object, the invention provides a kind of routing optimization method of selectable distributed mobile management, it is characterized in that: because simultaneously coexistence on the network has multiple optimisation strategy, so the option of a proxy mobile IPv 6 is set, can be in the foundation and keep-process of session, along with each proxy mobile IPv 6 message is entrained and send, so that corresponding route optimization strategy is selected and carried out to router according to the configuration feature of user's request or local router, simultaneously for the proxy mobile IPv 6 network brings variation support on the optimisation strategy, so that network self is for more refinement and the optimization of support of different application; Described option is an adjustable length territory, and its total word length is the integral multiple of 8 characters; This territory comprises 0, the mobility option of one or more " type-length-numerical value " codings, and this coded format defers to the requirements of 6.2 joints of RFC3775, so that unrecognizable option number and option content can be ignored and skip to Mobile Access Gateway.
Described option comprises that following each territory and connotation thereof are:
Type, word length 8 bits are option number, distribute its numerical value by the IANA tissue;
Length, word length 8 bits are the option total length, unit is 1 character;
Reserved, word length 8 bits are for keeping item;
Prefix Length, word length 8 bits are the prefix that comprises in the option or the effective length of address Prefix/Address;
Optimizing Option, word length 16 bits are the strategy numbering, its numerical value is organized Unified number by setting, so that couple in router equipment or anchor point device are unified to process to this codomain, avoids occuring chaotic;
Period, word length 16 bits are the cycle, its meaning under Different Strategies is had nothing in common with each other;
Prefix/Address, word length is adjustable, for setting lower needed 0 of strategy, one or more prefixes or address.
Described option is used for following six kinds of scenes:
(1) Dialog request of setting up carries out renewal and the switching of anchor point by the time:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but to time-sensitive or to the time dependence is arranged; This scene setting Optimizing Option territory is " TIME " pattern, and Period is the time cycle, namely every the setting-up time take second as unit, upgrades the anchor node of a session; If need specific prefix to do support, then in Prefix/Address, indicate;
(2) the every couple in router through set point number of the Dialog request of setting up just upgrades anchor point one time:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but along with the continuous increase of moving range, so that conversation continuity descends; This scene setting Optimizing Option territory is " JUMP " pattern, and namely every couple in router through set point number just upgrades the anchor node of a session, and Period is renewal frequency; If need specific prefix to do support, then in Prefix/Address, indicate;
(3) Dialog request set up is avoided the couple in router of setting prefix or address as the session anchor point:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but because of certain reason attempt avoidance certain or some couple in router grappling session; This scene setting Optimizing Option territory is " AVOID " pattern, does not namely upgrade the anchor node of this session at the couple in router of setting prefix or address, and indicates that in Prefix/Address these require prefix or the address of avoiding; Period in this pattern is inoperative, so its numerical value is left in the basket when couple in router or terminal processes;
The session of (4) setting up is required not carry out the switching of anchor point in the prefix of setting or address:
In fast mobile terminal arrived the range of signal of certain couple in router, this couple in router was not transmitting data flow as the anchor point of this session because of certain reason; This scene setting Optimizing Option territory is " REFUSE " pattern, i.e. current access route refusal grappling session, a processing forward request; Period works as Period=FFFF for the time limit that this refusal requires, and shows permanent refusal; At this moment, this option is sent to previous couple in router by current couple in router, is used for protocol negotiation;
The session of (5) setting up new session anchor point more all when each mobile:
This session is according to own characteristic, do not need extremely strong real-time and high-quality routing optimality, but along with the continuous increase of moving range, so that conversation continuity descends, so after moving to current couple in router, whether more to select at random the anchor node of new session according to the probable value that arranges at every turn; This scene setting Optimizing Option territory is " RANDOM " pattern, and Period is the renewal probable value of this session anchor node;
(6) carry out policy conferring between the access route, be used for being confirmed whether to be the session setup specific policy:
Carry out policy conferring according to himself ability between the couple in router, this scene setting Optimizing Option territory is " DISCUSS " pattern, and indicates concrete function and the parameter thereof of every kind of strategy of couple in router.
The various different modes in the Optimizing Option territory in described six kinds of scenes all are to adopt the respective code of 16 bit word lengths to represent.
In the described scene (5), the describing method of the renewal probable value Period of expression session anchor node is; Begin until the rightmost side with position, the leftmost side in its word length 16 bits, be respectively behind the binary digit decimal point the 1st until behind the decimal point the 16th; Couple in router or portable terminal arrange this Period numerical value according to the needs of network configuration or session, when portable terminal moves to current couple in router place, this couple in router judges whether its probable value between 0 to 1 that generates at random is not more than Period numerical value, if then this couple in router Session Anchor that portable terminal is being continued is in this locality; Otherwise this couple in router only carries out the data retransmission operation, and the session of this terminal of not grappling.
The alternative of the routing optimization method of described distributed mobile management is to have carried out purposive selection in optimisation strategy category existing or that confirmed by International Standards Organization, and provides extending space for novel strategy and the application that occurs from now on.
The present invention compared with prior art, its innovation advantage is the improvement that has at least following two aspects: at first, the feasible solution of independence that prior art usually just proposes based on the consideration of certain specific factor can not be taken into account many-sided factor simultaneously.Secondly, prior art generally is divided into two classes: a class is can compatible some other method, and another kind of is incompatible other method.Be not to possess the inventive method can consult to access route and so that multiple optimisation strategy coexists as the characteristic of network simultaneously.
According to present network flow statistic numeral, exist the data flow of number of different types in the mobile Internet, because self service content of different application and software entity and characteristics is different, its requirement for service quality differs greatly.If adopt the optimisation strategy of same in theory " optimum " and method very unrealistic, and, the unification of optimization method, just mean that also router manufacturer must realize its hardware configuration, be that the height of relevant parameter is consistent that these situations all do not meet the principle of liberty of commerce development and competition.In addition, different optimisation strategy all is for different application scenarioss and service function usually, and service function itself also can be along with social development, technological progress and produced unpredictable change.Be the heavy load phenomenon that network brings such as video data, very likely can be along with the development of the coding of application layer, compress technique and be solved in future, thereby the unified optimisation strategy of carrying out for the transmission of video service now will become futile effort.In fact, along with nearly 2 years developments of video coding technique and improving constantly of compression efficiency, also manifest gradually the developing direction of WeiLai Technology.The purpose of the inventive method is to wish so that network layer routing optimality strategy can symbiotic co-existence, and service provides optimum optimisation strategy for difference, and can effectively reduce unnecessary processing operation so that be responsible for anchor point, the access routing device of terminal management and data retransmission.
In addition, as mentioned above, because the routing optimality strategy is among the development, for the network equipment that magnanimity is disposed, it is unpractical with regard to the respective protocol of upgrading all-network equipment that a New Policy is whenever arranged; And it equally also is unpractical will making every kind of New Policy carry out forward compatibility to original old strategy.Therefore, the development of routing optimality scheme should be the process of an increment type, external hanging type, and a kind of such mechanism should be arranged: renewal that can either support policy, also so that New Policy can coexist simultaneously with old strategy.And no matter whether its compatibility, and both all can provide support for special services individually.The inventive method can satisfy above-mentioned requirements: the New Policy that only is required to be generation provides a standard strategy numbering, and the symbiosis in incompatible situation of itself and Existing policies is deposited together.Simultaneously, the present invention can also support respectively to support for the independent of dissimilar sessions on each terminal, is " each stream " different service strategies is provided respectively, but not provide unified optimisation strategy for each terminal.
In sum, the present invention is that the proxy mobile IPv 6 network brings the variation support on the optimisation strategy, so that network itself has good popularizing application prospect for more refinement and the optimization of support of different application.
Description of drawings
Fig. 1 is the choice format schematic diagram of the proxy mobile IPv 6 in the routing optimization method of the present invention.
Fig. 2 is the sequential flow chart of the first application scenarios of routing optimization method of the present invention.
Fig. 3 is the sequential flow chart of the second application scenarios of routing optimization method of the present invention.
Fig. 4 is the sequential flow chart of the third application scenarios of routing optimization method of the present invention.
Fig. 5 is the sequential flow chart of the 4th kind of application scenarios of routing optimization method of the present invention.
Fig. 6 is the sequential flow chart of the 5th kind of application scenarios of routing optimization method of the present invention.
Fig. 7 is the sequential flow chart of the 6th kind of application scenarios of routing optimization method of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the application scenarios of drawings and Examples.
Because simultaneously coexistence has multiple optimisation strategy on the network, so the routing optimization method of the selectable distributed mobile management of the present invention is the option that a proxy mobile IPv 6 is set, can be in the foundation and keep-process of session, along with each proxy mobile IPv 6 message is entrained and send, so that corresponding route optimization strategy is selected and carried out to router according to the configuration feature of user's request or local router, simultaneously for the proxy mobile IPv 6 network brings variation support on the optimisation strategy, so that network self is for more refinement and the optimization of support of different application.
Referring to Fig. 1, introduce the form of this option: it is one and comprises 0, the adjustable length territory of the mobility option of one or more " type-length-numerical value " codings that total word length is the integral multiple of 8 characters; And this coded format is deferred to the requirement of 6.2 joints of RFC3775, so that unrecognizable option number and option content can be ignored and skip to Mobile Access Gateway.This option comprises that following each territory and connotation thereof are:
Type is option number, and word length 8 bits distribute its numerical value by the IANA tissue;
Length is the option total length, and word length 8 bits, unit are 1 character;
Reserved is for keeping item, word length 8 bits;
Prefix Length is the prefix that comprises in the option or the effective length of address Prefix/Address, word length 8 bits;
Optimizing Option is the strategy numbering, word length 16 bits, and its numerical value is organized Unified number by setting, so that couple in router equipment or anchor point device are unified to process to this codomain, avoids occuring chaotic;
Period is the cycle, word length 16 bits, and its meaning under Different Strategies is had nothing in common with each other;
Prefix/Address is for setting lower needed 0 of strategy, one or more prefixes or address, and word length is adjustable.
The present invention has carried out repeatedly implementing test, specifies the operation principle of the inventive method below in conjunction with the emulation embodiment of six kinds of different application scenes.
Referring to Fig. 2, introduce the specific implementation process of the inventive method embodiment in the 1st kind of application scenarios:
(1) couple in router 1 of portable terminal by current place registered to management node.
(2) portable terminal is wanted to send request message to the Correspondent Node initiation session to couple in router 1, requires to carry out routing optimality with TIME pattern optimisation strategy, and sets the Period value.
(3) management node is received this message, the record relevant entry, and this session of mark is the optimisation strategy of TIME pattern, and set the Period value.
(4) management node is informed Correspondent Node position (being couple in router 3) to couple in router 1, and couple in router 1 encapsulates the packet that portable terminal sends to Correspondent Node, send to couple in router 3 by the tunnel after.Couple in router 3 will wrap decapsulation, and data division is sent to Correspondent Node.Correspondent Node returns corresponding data bag, session establishment with reverse path and mode again.At this moment, portable terminal and Correspondent Node by couple in router 1 and 3 can be simultaneously mutual transceiving data each other.
(5) portable terminal begins roaming, moves in the scope of couple in router 2.At this moment, Period is not then.Session is kept by tunnel style.The route of the data process of sending from Correspondent Node is: Correspondent Node → couple in router 3 → couple in router 1 → couple in router 2 → portable terminal.The route of the data process of sending from portable terminal is: portable terminal → couple in router 2 → couple in router 1 → couple in router 3 → Correspondent Node.Among each figure of Fig. 2 ~ Fig. 7, the single line arrow represents to send packet by common route-pattern, and the hollow frame arrow represents to send packet with the tunnel form.
(6) through after a while, Period then, management node control couple in router is initiated routing optimality: couple in router 1 sends packets to couple in router 2, informs address and the port information of its access route 3; Couple in router 1 sends packet to couple in router 3, informs address and the port information of its access route 2.Then, couple in router 1 is no longer passed through in the path that sends data, and directly adopts the tunnel style transmission between couple in router 2 and couple in router 3, and the tunnel rebulids.Portable terminal and the data interaction of Correspondent Node be by couple in router 2 and couple in router 3 communicate by letter finish.
(7) session is proceeded, until finish.As roam into next couple in router zone, repeating step (5) and (6).
Referring to Fig. 3, introduce the specific implementation process of the inventive method embodiment in the 2nd kind of application scenarios:
(1) couple in router 1 of portable terminal by current place registered to management node.
(2) portable terminal is wanted to the Correspondent Node initiation session: first send request message to couple in router 1, require to carry out routing optimality with JUMP pattern optimisation strategy, and to set the Period value be 1, namely every a couple in router again grappling session once.
(3) management node is received this message, record relevant entry, and this session of mark is JUMP pattern optimisation strategy, and to set the Period value be that 1, Jump value is 0.
(4) content of operation of the step (4) in the 1st kind of application scenarios of reference, session establishment.
(5) portable terminal begins roaming, moves in the scope of couple in router 3.At this moment, couple in router 3 knows that from management node this session is the JUMP mode session, and Jump is current to be 0, is not equal to the Period value that is set, and characterizing does not need to switch the session anchor node.Couple in router 3 send comprise the routing optimality option message to management node, the Jump value of this session is added 1, session is kept by tunnel style.Pass through following route from the data that Correspondent Node is sent: Correspondent Node → couple in router 4 → couple in router 1 → couple in router 3 → portable terminal; Pass through following route from the data that portable terminal sends: portable terminal → couple in router 2 → couple in router 1 → couple in router 3 → Correspondent Node.
(6) through after a while, mobile terminal roaming is in the scope of couple in router 2, and couple in router 2 knows that from management node this session is the JUMP mode session, and Jump is current to be 1, the Period value that equals to be set, and characterizing needs to switch the session anchor node.With reference to the initiation process of step (6) routing optimality in the 1st kind of scene, management node control couple in router is initiated routing optimality, and the tunnel rebulids.Portable terminal and the data interaction of Correspondent Node be by couple in router 2 and couple in router 4 communicate by letter finish.
(7) session is proceeded, until finish.As roam into next couple in router zone, repeating step (5) and (6).
Referring to Fig. 4, introduce the specific implementation process of the inventive method embodiment in the 3rd kind of application scenarios:
(1) couple in router 1 of portable terminal by current place registered to management node.
(2) portable terminal is wanted to the Correspondent Node initiation session: send request message to couple in router 1 first, requirement is carried out routing optimality with AVOID pattern optimisation strategy, and to set Prefix value be IPv6 prefix p, and the couple in router that namely ought move to prefix and be p is regional, does not carry out the grappling of session.
(3) management node is received this message, record relevant entry, and this session of mark is AVOID pattern optimisation strategy, and to set the Prefix value be p.
(4) content of operation of the step (4) in the 1st kind of application scenarios of reference, session establishment.
(5) portable terminal begins roaming, moves in the couple in router scope of being avoided.At this moment, known that from management node this session is the AVOID pattern by the couple in router avoided, the Prefix of avoidance is p, and is identical with the Prefix of self current configuration, and characterizing does not need to switch the session anchor node, and session is kept by tunnel style.Pass through following route from the data that Correspondent Node is sent: couple in router → portable terminal that Correspondent Node → couple in router 4 → couple in router 1 → quilt is avoided; Pass through following route from the data that portable terminal sends: couple in router → couple in router 1 → couple in router 4 → Correspondent Node that portable terminal → quilt is avoided.
(6) through after a while, mobile terminal roaming is in couple in router 2 scopes, and couple in router 2 knows that from management node this session is the AVOID pattern, and the Prefix of avoidance is p, be not inconsistent with the Prefix of self current configuration, characterizing needs to switch the session anchor node.With reference to the initiation process of step (6) routing optimality in the 1st kind of application scenarios, management node control couple in router is initiated routing optimality, and the tunnel rebulids.Portable terminal is to be communicated by letter to finish with couple in router 4 by couple in router 2 with the data interaction of Correspondent Node.
(7) session is proceeded, until finish.As roam into next couple in router zone, repeating step (5) and (6).
Referring to Fig. 5, introduce the specific implementation process of the inventive method embodiment in the 4th kind of application scenarios:
(1) couple in router 1 of portable terminal by current place registered to management node.
(2) portable terminal is wanted to the Correspondent Node initiation session: send request message to couple in router 1 first, requirement is carried out routing optimality with TIME pattern optimisation strategy, and to set the TIME value be 0, namely in moving to a couple in router zone, carries out immediately the grappling of session.
(3) management node is received this message, record relevant entry, and this session of mark is TIME pattern optimisation strategy, and to set the TIME value be 0.
(4) content of operation of the step (4) in the 1st kind of application scenarios of reference, session establishment.
(5) portable terminal begins roaming, moves in couple in router 2 scopes.At this moment, the couple in router of being avoided knows that from management node this session is the TIME pattern, and session is kept by tunnel style.Pass through following route from the data that Correspondent Node is sent: Correspondent Node → couple in router 3 → couple in router 1 → couple in router 2 → portable terminal; Pass through following route from the data that portable terminal sends: portable terminal → couple in router 2 → couple in router 1 → couple in router 3 → Correspondent Node.Among the figure, the single line arrow represents to send packet by common route-pattern, and the hollow frame arrow represents to send packet with the tunnel form.
(6) couple in router 1 is initiated the routing optimality request to couple in router 2 and couple in router 3.Couple in router 2 initiates to contain the option of REFUSE to the couple in router 3 of couple in router 1 and Correspondent Node, and the Period thresholding in the setting option is FFFF, show permanent refusal, announce its refusal grappling session, do not carry out such as scene 1 the 6th step by Optimum Operation.The session anchor point does not change, and packet institute via line is constant.
(7) session is proceeded, until finish.As roam into next couple in router zone, repeating step (5) and (6).
Referring to Fig. 6, introduce the specific implementation process of the inventive method embodiment in the 5th kind of application scenarios:
(1) couple in router 1 of portable terminal by current place registered to management node.
(2) portable terminal is wanted to the Correspondent Node initiation session: send request message to couple in router 1 first, requirement is carried out routing optimality with RANDOM pattern optimisation strategy, and setting Period value represents 0.5 for 8FFF(), be the random number that produces of current couple in router greater than 0.5 o'clock, carry out the grappling of session.
(3) management node is received this message, record relevant entry, and this session of mark is RANDOM pattern optimisation strategy, and to set the Period value be 0.5.
(4) content of operation of the step (4) in the 1st kind of application scenarios of reference, session establishment.
(5) portable terminal begins roaming, moves in couple in router 3 scopes.At this moment, couple in router 3 knows that from management node this session is the RANDOM pattern, the Period value is 0.5, produce immediately a random number greater than 0, less than 1, and this random number less than 0.5(for example: random number is 0.4), then do not need to switch the session anchor node, session is kept by tunnel style.Pass through following route from the data that Correspondent Node is sent: Correspondent Node → couple in router 4 → couple in router 1 → couple in router 3 → portable terminal; Pass through following route from the data that portable terminal sends: portable terminal → couple in router 3 → couple in router 1 → couple in router 4 → Correspondent Node.
(6) through after a while, mobile terminal roaming is in couple in router 2 scopes, couple in router 2 knows that from management node this session is the RANDOM pattern, the Period value is 0.5, produce immediately a random number greater than 0, less than 1, and this random number is greater than 0.5(for example: random number is 0.6), then need to switch the session anchor node.Initiate routing optimality with reference to the control of step (6) management node in the 1st kind of application scenarios couple in router, the tunnel rebulids.Portable terminal is to be communicated by letter with couple in router 4 by couple in router 2 with finishing with the data interaction of Correspondent Node.
(7) session is proceeded, until finish.As roam into next couple in router zone, repeating step (5) and (6).
Referring to Fig. 7, introduce the specific implementation process of the inventive method embodiment in the 6th kind of application scenarios:
(1) couple in router 1 sends request to management node, inquires prefix or address prefix or the address information of other couple in router.
(2) management node returns prefix or address prefix or the address information of other couple in router to couple in router 1.
(3) couple in router 1 to the message that couple in router 2 sends with the DISCUSS option, is inquired the optimisation strategy code of its support according to the prefix of returning or address information.
(4) couple in router 2 returns message with the DISCUSS option to couple in router 1, records the code of the routing optimality strategy of himself supporting in this message.
In a word, a plurality of emulation embodiment tests of the inventive method all are successfully, have realized goal of the invention.
Claims (6)
1. the routing optimization method of a selectable distributed mobile management, it is characterized in that: because simultaneously coexistence on the network has multiple optimisation strategy, so the option of a proxy mobile IPv 6 is set, can be in the foundation and keep-process of session, along with each proxy mobile IPv 6 message is entrained and send, so that corresponding route optimization strategy is selected and carried out to router according to the configuration feature of user's request or local router, simultaneously for the proxy mobile IPv 6 network brings variation support on the optimisation strategy, so that network self is for more refinement and the optimization of support of different application; Described option is an adjustable length territory, and its total word length is the integral multiple of 8 characters; This territory comprises 0, the mobility option of one or more " type-length-numerical value " codings, and this coded format defers to the requirements of 6.2 joints of RFC3775, so that unrecognizable option number and option content can be ignored and skip to Mobile Access Gateway.
2. method according to claim 1, it is characterized in that: described option comprises that following each territory and connotation thereof are:
Type, word length 8 bits are option number, distribute its numerical value by the IANA tissue;
Length, word length 8 bits are the option total length, unit is 1 character;
Reserved, word length 8 bits are for keeping item;
Prefix Length, word length 8 bits are the prefix that comprises in the option or the effective length of address Prefix/Address;
Optimizing Option, word length 16 bits are the strategy numbering, its numerical value is organized Unified number by setting, so that couple in router equipment or anchor point device are unified to process to this codomain, avoids occuring chaotic;
Period, word length 16 bits are the cycle, its meaning under Different Strategies is had nothing in common with each other;
Prefix/Address, word length is adjustable, for setting lower needed 0 of strategy, one or more prefixes or address.
3. method according to claim 1 is characterized in that: described option is used for following six kinds of scenes:
(1) Dialog request of setting up carries out renewal and the switching of anchor point by the time:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but to time-sensitive or to the time dependence is arranged; This scene setting Optimizing Option territory is " TIME " pattern, and Period is the time cycle, namely every the setting-up time take second as unit, upgrades the anchor node of a session; If need specific prefix to do support, then in Prefix/Address, indicate;
(2) the every couple in router through set point number of the Dialog request of setting up just upgrades anchor point one time:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but along with the continuous increase of moving range, so that conversation continuity descends; This scene setting Optimizing Option territory is " JUMP " pattern, and namely every couple in router through set point number just upgrades the anchor node of a session, and Period is renewal frequency; If need specific prefix or address to do support, then in Prefix/Address, indicate;
(3) Dialog request set up is avoided the couple in router of setting prefix or address as the session anchor point:
This session does not need extremely strong real-time and high-quality routing optimality according to own characteristic, but because of certain reason attempt avoidance certain or some couple in router grappling session; This scene setting Optimizing Option territory is " AVOID " pattern, does not namely upgrade the anchor node of this session at the couple in router of setting prefix or address, and indicates that in Prefix/Address these require prefix or the address of avoiding; Period in this pattern is inoperative, so its numerical value is left in the basket when couple in router or terminal processes;
The session of (4) setting up is required not carry out the switching of anchor point in the prefix of setting or address:
In fast mobile terminal arrived the range of signal of certain couple in router, this couple in router was not transmitting data flow as the anchor point of this session because of certain reason; This scene setting Optimizing Option territory is " REFUSE " pattern, i.e. current access route refusal grappling session, a processing forward request; Period works as Period=FFFF for the time limit that this refusal requires, and shows permanent refusal; At this moment, this option is sent to previous couple in router by current couple in router, is used for protocol negotiation;
The session of (5) setting up new session anchor point more all when each mobile:
This session is according to own characteristic, do not need extremely strong real-time and high-quality routing optimality, but along with the continuous increase of moving range, so that conversation continuity descends, so after moving to current couple in router, whether more to select at random the anchor node of new session according to the probable value that arranges at every turn; This scene setting Optimizing Option territory is " RANDOM " pattern, and Period is the renewal probable value of this session anchor node;
(6) carry out policy conferring between the access route, be used for being confirmed whether to be the session setup specific policy:
Carry out policy conferring according to himself ability between the couple in router, this scene setting Optimizing Option territory is " DISCUSS " pattern, and indicates concrete function and the parameter thereof of every kind of strategy of couple in router.
4. method according to claim 3 is characterized in that: the various different modes in the Optimizing Option territory in described six kinds of scenes all are to adopt the respective code of 16 bit word lengths to represent.
5. method according to claim 3 is characterized in that: in the described scene (5), represent that the describing method of the renewal probable value Period of session anchor node is; Begin until the rightmost side with position, the leftmost side in its word length 16 bits, be respectively behind the binary digit decimal point the 1st until behind the decimal point the 16th; Couple in router or portable terminal arrange this Period numerical value according to the needs of network configuration or session, when portable terminal moves to current couple in router place, this couple in router judges whether its probable value between 0 to 1 that generates at random is not more than Period numerical value, if then this couple in router Session Anchor that portable terminal is being continued is in this locality; Otherwise this couple in router only carries out the data retransmission operation, and the session of this terminal of not grappling.
6. method according to claim 3, it is characterized in that: the alternative of the routing optimization method of described distributed mobile management is to have carried out purposive selection in optimisation strategy category existing or that confirmed by International Standards Organization, and provides extending space for novel strategy and the application that occurs from now on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459125.1A CN102938919B (en) | 2012-11-15 | 2012-11-15 | The routing optimization method of selectable distributed mobile management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459125.1A CN102938919B (en) | 2012-11-15 | 2012-11-15 | The routing optimization method of selectable distributed mobile management |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102938919A true CN102938919A (en) | 2013-02-20 |
| CN102938919B CN102938919B (en) | 2016-03-30 |
Family
ID=47697767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210459125.1A Expired - Fee Related CN102938919B (en) | 2012-11-15 | 2012-11-15 | The routing optimization method of selectable distributed mobile management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102938919B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054851A1 (en) * | 2013-10-16 | 2015-04-23 | 华为技术有限公司 | Communication method, user equipment, network side device, and communication system |
| CN104994159A (en) * | 2015-06-30 | 2015-10-21 | 青岛海尔智能家电科技有限公司 | Distributed agent method and device based on AllJoyn, and mobile equipment |
| CN110166406A (en) * | 2018-02-12 | 2019-08-23 | 华为技术有限公司 | Manage method, system and the relevant device of media transmission access |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100011250A (en) * | 2008-07-24 | 2010-02-03 | 성균관대학교산학협력단 | Method of optimizing route for data packet transmission between mobile node and onlink node using routing table in mobile access gateway of pmipv6 environment |
| CN102647708A (en) * | 2012-04-06 | 2012-08-22 | 中山大学 | Distributive mobile IPv6 method based on network mobile management and routing optimization |
-
2012
- 2012-11-15 CN CN201210459125.1A patent/CN102938919B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100011250A (en) * | 2008-07-24 | 2010-02-03 | 성균관대학교산학협력단 | Method of optimizing route for data packet transmission between mobile node and onlink node using routing table in mobile access gateway of pmipv6 environment |
| CN102647708A (en) * | 2012-04-06 | 2012-08-22 | 中山大学 | Distributive mobile IPv6 method based on network mobile management and routing optimization |
Non-Patent Citations (1)
| Title |
|---|
| SHEN YAN等: "THE OPTIONAL ROUTING OPTIMIZATION STRATEGY OF DISTRIBUTED MOBILITY MANAGEMENT", 《PROCEEDINGS OF IEEE CCIS 2012》, 1 November 2012 (2012-11-01), pages 3 - 4 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054851A1 (en) * | 2013-10-16 | 2015-04-23 | 华为技术有限公司 | Communication method, user equipment, network side device, and communication system |
| CN104994159A (en) * | 2015-06-30 | 2015-10-21 | 青岛海尔智能家电科技有限公司 | Distributed agent method and device based on AllJoyn, and mobile equipment |
| CN110166406A (en) * | 2018-02-12 | 2019-08-23 | 华为技术有限公司 | Manage method, system and the relevant device of media transmission access |
| US11700284B2 (en) | 2018-02-12 | 2023-07-11 | Huawei Technologies Co., Ltd. | Method, system, and related device for managing media transmission path |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102938919B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Das et al. | TeleMIP: telecommunications-enhanced mobile IP architecture for fast intradomain mobility | |
| CN100474854C (en) | Method and network system for selecting called continued network | |
| CN101212810B (en) | Customer premise equipment switching method in radio network | |
| CN101390370B (en) | Gateway, terminal and the method for controlling gateway and terminal | |
| CN100596095C (en) | Hierarchical mobility IPv6 rapid switching method and system | |
| KR100531623B1 (en) | COMMUNICATION METHOD USING MOBILE IPv6 IN NAT-PT ENVIRONMENT AND MEDIUM THEREOF | |
| CN102037691A (en) | Systems and methods for multiplexing multiple connections in mobile IP network | |
| CN101627650B (en) | Architecture for multiple MIH users | |
| MX2010011436A (en) | Method for transferring a flow between two heterogeneous access points. | |
| CN104145505A (en) | Access processing method, device, and system | |
| CN101111067A (en) | Mobile terminal and communication method for gateway access | |
| KR100701038B1 (en) | System for interworking services of heterogeneous networks and method for vertical handoff | |
| CN101588569B (en) | Multiple LMA selection method in mobile node switching process in PWIPv6 domain | |
| CN102938919A (en) | Selectable route optimization method of distributed mobile management | |
| CN104041122B (en) | A kind of data domain service processing method, apparatus and system | |
| CN102123526B (en) | Method, system and device for configuring multi-port mobile node port | |
| CN103813395A (en) | Method for moving seamlessly among different networks by terminal user, and wireless local area network optimization gateway (WOG) | |
| CN101369924A (en) | Mobile management method used for mobile IP network | |
| CN102754460A (en) | Method for indicating information and mobility management network element | |
| CN101146339B (en) | SGSN-spanning switching method and mobile communication network | |
| CN105357663A (en) | Method for supporting mobile node to notify existing IPv6 prefix | |
| CN101335700A (en) | Address acquiring method, signaling routing method, communication system and related apparatus | |
| CN101577975B (en) | Method for establishing IP connection and data transmission method | |
| CN102546356B (en) | Method and system capable of ensuring service quality of mobile nodes in logo network | |
| CN101009610A (en) | The method for quick switching of the mobile nodes in the multi-protocol label switching network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20211115 |