CN101499942A - Method, system and apparatus for seamless switching - Google Patents
Method, system and apparatus for seamless switching Download PDFInfo
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Abstract
The embodiment of the invention discloses a seamless switching method which comprises the following steps: an intermediate entity belonging to both communication sides receives the mobile information sent by a communication initiator; and the intermediate entity belonging to both communication sides sends the mobile information to the communication receiver, thus establishing the communicating connection between both communication sides. By the method, during the switching process, the communication initiator sends the mobile information of the communication initiator to the communication receiving side by the intermediate entity belonging to both communication sides to establish the communicating connection between both communication sides, thus realizing that the communication initiator can inform the communication receiver of the address change of the communication initiator during the mobile process, and consequently the present communication is not required to be stopped, and the seamless switching is realized. The method can not only solve the accessibility problem of the new address of the mobile host, but also reduce the packet loss rate and switching delay to a maximum extent; the denial of service attack and the attack of a middle man are resisted effectively, and the safety performance of the network is increased.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of mthods, systems and devices of seamless switching.
Background technology
Network layer in the most popular TCP in the whole world (Transmission Control Protocol, transmission control protocol)/IP (Internet Protocol, Internet Protocol) protocol family is IPv4 (internet protocol version four) at present.IPv4 is provided at the communication of the host-to-host between the system among the Internet.Along with continuing to bring out of more and more littler communication terminal, the mobility of network and fail safe become the ultimate challenge that current network faces.Mobile IPv 4 allows node can change to the link access point of network, and needn't change the IP address, can keep simultaneously and the communicating by letter of other node.The disadvantage of mobile IPv 4 is its triangle routing issue, when promptly communication node sends packet to mobile node, need by its home agent, and mobile node can directly send to communication node with packet according to standard I P routing rule.
Along with the development of Internet, the defective of IPv4 comes out more and more significantly, and wherein the address space crisis is the most serious and presses for the problem of solution.In addition, also there is routing table explosion in the IPv4 network, lacks problems such as effective service quality assurance mechanism and security mechanism.Though various remedial measures make these problems obtain to a certain degree alleviation, take a long view, the upgrading that the IPv4 agreement needs could fundamentally solve the variety of problems that runs in the present IPv4 network.Therefore, IETF (InternetEngineering Task Force, internet engineering task group) has proposed IPv6 (IPv 6) agreement.
Mobile IP v 6 has defined a new destination option: the home address option is used to realize that mobile IP is to the transparency of upper-layer protocol and the support that immigration is filtered.No matter be mobile IPv 4 or mobile IP v 6, their IP address function all has dual nature, promptly the IP address be location identifier also be identification identifier, this is the basis that entire I P network carries out route.At first, the IP address is the sign of main frame position in network topology as the network address, and routing mechanism need rely on the IP address to decide the message forwarding path; In addition, because upper-layer protocol in communication process, usually is bundled in an end of communication on the IP address, just cause the IP address to become an identification identifier.If the main frame transfixion, it can keep IP address permanency.If but main frame is mobile in network, when promptly changing the network site, must change the IP address of oneself.Connect because upper-layer protocol, will change the upper strata like this part of IP address as the host identities identifier, caused originally communication disruption end to end.Therefore, need a kind of mechanism that station location marker is separated with identify label, so IETF has proposed a kind of new solution: HIP (Host Identity Protocol, host identity protocol).
The HIP agreement has been inserted new one deck HIP layer between transport layer and network layer, as shown in Figure 1.The HIP agreement has been introduced a new name space---HI (Host Identifier, host identification), and with its sign as main frame.HI fully takes into account the needs of communication security, is one and has the hostid of encrypting meaning.As a rule, HI is the PKI of unsymmetrical key to the lining, and its length without limits.In actual applications, obtain one 128 sequence, be called HIT (HostIdentity Tag, host identification label) by HI being carried out the Hash computing.HIT has identical length with the IPv6 address, can be directly used in the application of IPv6.In order to make API (Application ProgrammingInterface, the application programming interface) compatibility of HIP energy and present agreement, HI also has another kind of LSI (Local Scale Identifier, subrange identifier).It is 32, and is identical with the IPv4 address size, can be directly used in the application of IPv4.
Like this, upper-layer protocol binding no longer be IP but HIT or LSI, positional information is hidden more than the HIP layer, the IP address only is used for the routing packets of network.Upper-layer protocol no longer needs to be concerned about positional information, only need know communication receiver's HIT, and the IP address only has importance to the lower-layer protocols that relates to Route Selection.Packet arrives after the HIP layer, and HIT is mapped to corresponding IP address.Therefore, after main frame moves, though the IP address modification, HIT does not change, and the application on upper strata does not recognize that main frame has taken place to move, and new IP address only needs to shine upon again at the HIP layer.So the connection of communicating pair need not to disconnect.
The HIP agreement has solved separating of host identification and station location marker well, and the support of mobility and fail safe all is far superior to MIPv6 (Mobile Internet Protocol v6, mobile internet protocol edition 6).HIP has exchanged key when connecting, so no longer need extra mechanism to carry out cipher key change.
The inventor finds: in HIP basic agreement and its Extended Protocol, the folk prescription of the main frame of communicating by letter moved provided solution, but to the communication host both sides all in situation about moving, but do not provide series of solutions.When the main frame both sides that communicating by letter all when mobile, under current mechanism, both sides' update package all can not arrive the opposite end, after the several times retry, will end in failure communication disruption.Simultaneously, though existing HIP agreement has provided RVS (Rendezvous Server, aggregation server) how to issue the service that this RVS can provide to its client, and how client is registered in RVS, but existing HIP agreement does not provide when main frame moves, and obtains the concrete renewal process behind the new IP address.
Summary of the invention
The embodiment of the invention provides a kind of mthods, systems and devices of seamless switching, informs the variation of this host address of communication receiver to realize main frame in moving process, need not interrupt ongoing communication, has realized seamless switching.
For achieving the above object, the embodiment of the invention provides a kind of method of seamless switching on the one hand, comprising: the mobility information that the intermediate entities received communication initiator under the communicating pair sends; Intermediate entities under the described communicating pair sends to the communication receiver with described mobility information, sets up communicating to connect of communicating pair.
On the other hand, the embodiment of the invention also provides a kind of system of seamless switching, comprising: the communication initiator is used to send mobility information; Intermediate entities under the communicating pair is used to receive the mobility information that described communication initiator sends, and described mobility information is sent to the communication receiver, sets up communicating to connect of communicating pair.
On the one hand, the embodiment of the invention also provides a kind of intermediate entities, comprising again: receiver module is used for the mobility information that the received communication initiator sends; Sending module is used for the mobility information that described receiver module receives is sent to the communication receiver.
On the one hand, the embodiment of the invention also provides a kind of communication initiator, comprising again: information sending module is used for sending mobility information to intermediate entities.
Compared with prior art, by the embodiment of the invention, in handoff procedure, the communication initiator sends to the communication receiver by the intermediate entities under the communication receiver with communication initiator's mobility information, to set up communicating to connect of communicating pair.The embodiment of the invention has realized that the communication initiator informs the communication receiver with the variation of this communication initiator address in moving process, thereby does not need to interrupt ongoing communication, has realized seamless switching.
Description of drawings
Fig. 1 is the hierarchical structure schematic diagram of prior art HIP;
Fig. 2 is the flow chart of the method for embodiment of the invention seamless switching;
Fig. 3 is the flow chart of the method embodiment one of seamless switching of the present invention;
Fig. 4 is the flow chart of the method embodiment two of seamless switching of the present invention;
Fig. 5 is the schematic diagram of the method embodiment three of seamless switching of the present invention;
Fig. 6 sends the schematic diagram of UPDATE message bag to the communication receiver for embodiment of the invention communication initiator;
Fig. 7 is the structure chart of the system of embodiment of the invention seamless switching;
Fig. 8 is the structure chart of embodiment of the invention intermediate entities;
Fig. 9 is embodiment of the invention communication initiator's a structure chart.
Embodiment
The embodiment of the invention provides a kind of method of seamless switching, and when the main frame based on the HIP agreement moved, the method that adopts the embodiment of the invention to provide can solve the problem that communicating pair is all moving.Simultaneously, the embodiment of the invention provided main frame in the process that moves how the RVS under this main frame upgrade the method for the IP address of this main frame.In embodiments of the present invention, intermediate entities is specially RVS, and the embodiment of the invention is not limited thereto certainly, any IP address of upgrading mobile host of finishing, and the entity of forwarding mobility information function all should fall into the protection range of the embodiment of the invention.
As shown in Figure 2, the flow chart for the method for embodiment of the invention seamless switching specifically may further comprise the steps:
The mobility information that intermediate entities received communication initiator under the step S201, communicating pair sends.Intermediate entities under this communicating pair comprises one or both in communication initiator's intermediate entities and communication receiver's the intermediate entities.This communicating pair adopts Host Based motion management method to communicate.
Intermediate entities under communicating pair sends to mobility information the communication receiver, and the communication initiator also sends to the communication receiver by renewal process with this mobility information.This mobility information comprises communication initiator's positional information at least, can also comprise security information and whether rebulid in the indication information of Security Association one or both.Mobility information is carried by the HIP signaling that comprises the Locator parameter that the communication initiator sends, and this HIP signaling comprises UPDATE message bag or the first request message bag that the communication initiator sends in handshake procedure, for example: I1 message bag.Wherein, I1 message bag is after the communication initiator obtains communication receiver's HIT, sends to communication receiver's a HIP bag, comprises the Locator parameter in this I1 message bag, and communication initiator and communication receiver's HIT.
In addition, be moved the communication initiator, obtained after the new address, the communication initiator upgrades this communication initiator's address by the intermediate entities of renewal process under the communication initiator.
When communication initiator and communication receiver all when mobile, the communication initiator is provided with the types value of Locator parameter in the I1 message bag, carries the address of the intermediate entities under the communication initiator in the Locator parameter.
Intermediate entities under the step S202, communicating pair sends to the communication receiver with mobility information, sets up communicating to connect of communicating pair.After receiving the HIP signaling of carrying mobility information, the intermediate entities under the communication receiver is searched communication receiver's address according to the HIT in the HIP signaling, and this mobility information is sent to the communication receiver.After mobility information was sent to the communication receiver, the communication receiver judged in the I1 message bag whether comprise the Locator parameter, if comprise, then communications reception direction communication initiator replys UPDATE message bag; If do not comprise the Locator parameter in the I1 message bag, then communications reception direction communication initiator replys the first response message bag, for example: R1 message bag.The communication receiver can calculate better R1 message bag in advance, and after receiving I1 message bag, R1 bag of communication receiver's random choose is issued the communication initiator.Wherein, comprise following parameter in the R1 message bag:
(1) R1_COUNTER: comprise the R1 counting label of one 8 byte, which precalculated R1 bag is sign be.
(2) PUZZLE: comprise an integer K, the difficulty of expression puzzle, K is big more, and the answer needed time of puzzle is just many more.It also includes the random sequence J of 8 bytes, the expression puzzle.
(3) DIFFIE_HELLMAN: it has comprised the sequence that is used for the DIFFIE_HELLMAN cipher key change.
(4) HIP_TRANSFORM: it has comprised 6 cryptographic algorithm for the selection of I side.
(5) ESP_TRANSFORM: it has comprised 6 ESP (EncapsulatingSecurity Payload, ESP) cryptographic algorithm for the selection of I side, is replenishing of HIP_TRANSFORM parameter.
(6) HOST_ID: it has comprised the HI of I side.
(7) HIP_SIGNATURE_2: it is the signature of R1 bag, is used to identify whether this bag is sent by R side.
As shown in Figure 3, be the flow chart of the method embodiment one of seamless switching of the present invention, when main frame move obtain new IP address after, upgrade the IP address of this main frame by the RVS of UPDATE process under this main frame.Specifically may further comprise the steps:
Step S301, the mobile host RVS under this mobile host sends UPDATE message bag, and this UPDATE message includes Locator, SEQ parameter.
Wherein, Locator shows the new address of this mobile host, owing to do not have transfer of data between mobile host and the RVS, so the Traffic Type among the LOCATOR is 1, and expression is a signal packet just.When Locator Type is 0, the IPv4 address of expression IPv6 address or IPv6 form, the content of Locator is the new IPv6 address that obtains of mobile host or the IPv4 address of IPv6 form.
The SEQ parameter, the Update ID of the inside is used for identifying the sequence number of this UPDATE message bag.
Step S302, RVS receives after the UPDATE message bag, after the mobile host of determining this UPDATE message bag of transmission was the user who had registered, RVS responded a UPDATE message bag, and this UPDATE message includes ACK, SEQ, ECHO_REQUEST parameter.
Wherein, ACK is the approval of RVS to received UPDATE message bag;
The Update ID of SEQ parameter the inside is the sign of the UPDATE message bag of RVS response;
The most important thing is the ECHO_REQUEST parameter, it comprised a needs mobile host remain untouched return ground random sequence, reach the purpose of address validation with this.
After step S303, mobile host receive the UPDATE message bag of RVS transmission, respond a UPDATE message bag to RVS again, the UPDATE message of this response includes ACK, ECHO_RESPONSE parameter.
Wherein, ACK is the approval of mobile host to received UPDATE message bag;
ECHO_RESPONSE comprises the copy of the random sequence in the ECHO_REQUEST parameter that this mobile host receives.
For RVS, it need carry out the maintenance of state to the client's that registered address information.Aforesaid step S302, when RVS received UPDATE message bag, the state of this new address that RVS should mobile host was set to UNVERIFIED, and the original address of mobile host still is the ACTIVE state.When RVS successfully receives UPDATE message bag among the above-mentioned steps S303, and after the sequence of checking among the ECHO_RESPONSE is consistent with sequence among the ECHO_REQUEST, RVS just transfers the state of the new address of this mobile host to ACTIVE, and the state of the original address of this mobile host is transferred to DEPRECATED.
When communicating pair belongs to a RVS together, because mobile host is after having obtained new IP address, the capital is to the IP address of this mobile host of RVS server update, even therefore the communicating pair main frame has all taken place to move, the communication initiator also can send UPDATE message bag or I1 message bag to the communication receiver by RVS, thereby solved prior art when the communicating pair main frame all when mobile, the UPDATE message bag of communicating pair can't arrive the problem of opposite end.
As shown in Figure 4, flow chart for the method embodiment two of seamless switching of the present invention, when main frame is moved, after obtaining new IP address, this mobile host is that the communication receiver carries out UPDATE to Correspondent Node, simultaneously, send I1 message bag to communication receiver's RVS, this I1 message includes the Locator parameter.
Specifically may further comprise the steps:
Step S401, mobile host sends I1 message bag to communication receiver's RVS.The Locator parameter that comprises in this I1 message bag is the same with Locator parameter in the UPDATE message bag, has carried the information of the new address of this mobile host.Because the I1 message bag of prior art has only the HIT of communicating pair, the embodiment of the invention is expanded I1 message bag: increase a Locator parameter after both sides' HIT.
Step S402, RVS is forwarded to the communication receiver with I1 message bag, and mobile host sends UPDATE message bag to the communication receiver.After communication receiver's RVS received the I1 message bag of mobile host transmission, RVS did not need to judge that this I1 message bag is used for initiating initial handshake, still was used for upgrading, and RVS directly transmits this I1 message bag to the communication receiver.The communication receiver receives I1 message bag, need to judge, this be used for upgrading I1 message bag rather than initiate to shake hands, when resolving I1 message bag, if the inside includes the Locator parameter, just think that this I1 message bag is used for upgrading, otherwise, just think that this I1 message bag is used for initiating to shake hands.
When RVS is forwarded to the communication receiver with I1 message bag, mobile host also sends UPDATE message bag to this communication receiver, when the communication receiver was not moved, the communication receiver not only received the I1 message bag that RVS transmits, and also receives the UPDATE message bag that mobile host is sent.
Step S403, communications reception direction mobile host reply UPDATE message bag.The communication receiver can select to reply two update request UPDATE message bags that RVS transmits sends with mobile host, also can select only answer once, if reply twice, the UPDATE message bag content that the communication receiver beams back is identical.
For defensive attack, must comprise the ECHO_REQUEST parameter in the UPDATE message bag that the communication receiver responds, test the accessibility of new address.
Step S404, mobile host is replied UPDATE message bag to the communication receiver.After mobile host is received the UPDATE message bag that contains the ECHO_REQUEST parameter, must reply a UPDATE message bag that includes ECHO_RESPONSE.The communication receiver transfers the state of the new address of mobile host to ACTIVE after receiving ECHO_RESPONSE, mobile host just can use the new address of this mobile host to communicate like this.
When communicating pair all when mobile, the UPDATE message bag that mails to the communication receiver will be lost, and mail to the I1 message bag of communication receiver's RVS, can arrive the communication receiver, this is because the initiation that communicating pair upgrades, be two independently processes, so communicating pair can both be received own affiliated RVS and transmit the I1 message bag of opposite end, promptly can know communication receiver's new address according to the Locator parameter in the I1 message bag, communicating pair carries out normal UPDATE response and address reachability test then, and final communicating pair can both use the other side's new address to proceed communication.
As shown in Figure 5, be the schematic diagram of the method embodiment three of seamless switching of the present invention.
Mobile host will upgrade the address of this mobile host to three entities: the RVS of this mobile host, communication receiver's RVS and communication receiver after obtaining new address.These three renewal processes are processes independently, and are irrelevant mutually each other, so the time delay that produces of these three renewal processes can not be later than the time delay that renewal process produces.
Communication receiver's RVS only sends to the address that communication receiver's state is ACTIVE with this I1 message bag when receiving the I1 message bag of communication initiator's transmission.If when communication receiver's RVS receives I1 message bag, the communication receiver just in time is in the renewal process, and then RVS is relayed to the original address of communication receiver to this I1 message bag.
If the communication initiator does not receive communication receiver's renewal response within a certain period of time, then the communication initiator need carry out retry, promptly sends UPDATE message bag to the communication receiver, and sends I1 message bag to communication receiver's RVS.Like this, if the UPDATE message that sends by the communication initiator can not be sent to the communication initiator's address right that upgrades the communication receiver after the renewal, the I1 message bag that communication receiver's RVS receives and transmits can guarantee that also the communication initiator address that will upgrade sends to the communication receiver.
When connecting, if the communication initiator does not know the address of the letter recipient's of Xiaotong RVS, the communication initiator sends I1 message bag by the address that DNS inquires about the RVS of knowing the communication receiver to communication receiver's RVS.Communication receiver and do not know the address of communication initiator's RVS.The embodiment of the invention is expanded I1 message bag, has defined a kind of new Locator Type, and is as shown in table 1,
Table 1
| Locator Type | Implication |
| 0 | Expression Locator territory is the IPv4 address of IPv6 address or IPv6 form |
| 1 | Expression Locator territory is ESP SPI, and the IPv4 address of IPv6 address or IPv6 form is followed in the back |
| 2 | Expression Locator territory is the IPv6 address of RVS or the IPv4 address of IPV6 form |
Value in the table 1 is that 2 Locator Type is the Locator Type of embodiment of the invention redetermination.
The communication initiator is in I1 message bag, and additional Locator parameter is made as 2 with the Locator Type of this Locator parameter, and fills in the address of this communication initiator's self RVS in the Locator territory.The communication receiver just can preserve the address of communication initiator's RVS get off like this, gives over to when switching to use.
Embodiment three can use ECHO_REQUEST and ECHO_RESPONSE to carry out address reachability test equally, attacks and man-in-the-middle attack thereby can resist DoS (Denial of Service, denial of service) effectively.The security performance of the embodiment of the invention is identical with existing HIP technical security performance.
In addition, the embodiment of the invention is expanded the function of RVS, make RVS can transmit UPDATE message bag, therefore, the communication initiator can also send UPDATE message bag by the RVS to the communication receiver, RVS transmits this UPDATE message bag that contains the Locator parameter, reaches the purpose that the address is upgraded, as shown in Figure 6.
The method of above-mentioned seamless switching is utilized the signaling of Locator parameter as host identity protocol, allows main frame to inform the variation of its address of Correspondent Node in moving process, does not need to interrupt ongoing communication.Not only under the situation that the communication folk prescription moves, can solve the Reachability question of the new address of mobile host, and successfully solve present HIP main frame both sides all in the mobile problem of losing that connects.
And the seamless switching scheme that the embodiment of the invention proposes has reduced packet loss and handoff delay to greatest extent, and resisting abnegation service aggression and man-in-the-middle attack have improved the network security performance effectively.
As shown in Figure 7, be the structure chart of the system of embodiment of the invention seamless switching, comprising: the communication initiator 71, are used to send mobility information; Intermediate entities 72 under the communicating pair is used for the mobility information that received communication initiator 71 sends, and mobility information is sent to the communication receiver, sets up communicating to connect of communicating pair.
The system of this seamless switching also comprises: the communication receiver 73, are used for the mobility information that the affiliated intermediate entities of received communication recipient 2 sends.
Wherein, the intermediate entities 72 under the communicating pair comprises one or both in communication initiator's intermediate entities and communication receiver's the intermediate entities.
As shown in Figure 8, the structure chart for embodiment of the invention intermediate entities comprises: receiver module 81 is used for the mobility information that the received communication initiator sends;
Sending module 82 is used for the mobility information that receiver module 81 receives is sent to the communication receiver.
This intermediate entities also comprises: search module 83, the HIT that is used for the HIP signaling that receives according to receiver module 81 searches communication receiver's address, with communication receiver's address notification sending module 82.
This intermediate entities also comprises: address update module 84, be used for being moved the communication initiator, and obtained after the new address, upgrade communication initiator's address by renewal process.
As shown in Figure 9, the structure chart for embodiment of the invention communication initiator comprises: information sending module 91 is used for sending mobility information to intermediate entities.
Wherein, information sending module 91 comprises: upgrade sending submodule 911, be used for by renewal process mobility information being sent to the communication receiver.
This communication initiator also comprises: update module 92, be used for being moved the communication initiator, and obtained after the new address, upgrade communication initiator's address by the intermediate entities of renewal process under the communication initiator.
This communication initiator also comprises: module 93 is set, be used for when communication initiator and communication receiver all when mobile, the types value of Locator parameter in the I1 message bag is set, in this Locator parameter, carry the address of the intermediate entities under the communication initiator.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (22)
1, a kind of method of seamless switching is characterized in that, comprising:
The mobility information that intermediate entities received communication initiator under the communicating pair sends;
Intermediate entities under the described communicating pair sends to the communication receiver with described mobility information, sets up communicating to connect of communicating pair.
2, the method for seamless switching according to claim 1, it is characterized in that, intermediate entities under the described communicating pair comprises communication initiator's intermediate entities, or communication receiver's intermediate entities, or described communication initiator's intermediate entities and described communication receiver's intermediate entities.
3, seamless handover method according to claim 1 is characterized in that described communicating pair adopts Host Based motion management method to communicate.
4, as the method for seamless switching as described in any one of the claim 1 to 3, it is characterized in that further comprise: the communication initiator sends to the communication receiver by renewal process with described mobility information.
5, the method for seamless switching according to claim 1, it is characterized in that, described mobility information comprises at least: the positional information of described communicating pair, or described mobility information also comprises security information and whether rebulids in the indication information of Security Association one or both.
6, the method for seamless switching according to claim 1, it is characterized in that, described mobility information is carried by the host identity protocol HIP signaling that comprises the Locator parameter that the communication initiator sends, and described HIP signaling is included in the first request message bag that the communication initiator sends in handshake procedure or upgrades UPDATE message bag.
As the method for seamless switching as described in claim 2 or 6, it is characterized in that 7, the intermediate entities under the described communicating pair sends to the communication receiver with described mobility information and comprises:
Intermediate entities under the described communication receiver is searched described communication receiver's address according to the host identification label HIT in the described HIP signaling, and described mobility information is sent to described communication receiver.
8, as the method for seamless switching as described in the claim 7, it is characterized in that, after described mobility information is sent to the communication receiver, also comprise:
Described communication receiver judges in the described first request message bag whether comprise the Locator parameter;
If comprise, the described communication initiator of then described communications reception direction replys UPDATE message bag;
If do not comprise described Locator parameter in the described first request message bag, the described communication initiator of then described communications reception direction replys the first response message bag.
9, the method for seamless switching according to claim 1 is characterized in that, also comprises:
Be moved described communication initiator, obtained after the new address, described communication initiator upgrades described communication initiator's address by the intermediate entities of renewal process under described communication initiator.
10, as the method for seamless switching as described in the claim 6, it is characterized in that, before the mobility information that the intermediate entities received communication initiator under the described communicating pair sends, also comprise:
When described communication initiator and described communication receiver all when mobile, described communication initiator is provided with the types value of Locator parameter in the described first request message bag, carries the address of the intermediate entities under the described communication initiator in described Locator parameter.
11, as the method for claim 1,9,10 seamless switching as described in any, it is characterized in that described intermediate entities comprises at least: aggregation server RVS, described RVS supports the relaying to UPDATE message bag.
12, as the method for seamless switching as described in the claim 11, it is characterized in that, described intermediate entities also comprises domain name server (DNS), and the communication initiator sends the first request message bag by described DNS query communication recipient's RVS address to communication receiver's RVS.
13, a kind of system of seamless switching is characterized in that, comprising:
The communication initiator is used to send mobility information;
Intermediate entities under the communicating pair is used to receive the mobility information that described communication initiator sends, and described mobility information is sent to the communication receiver, sets up communicating to connect of communicating pair.
14, as the system of seamless switching as described in the claim 13, it is characterized in that, also comprise: the communication receiver is used to receive the mobility information that the intermediate entities under the described communicating pair sends.
As the system of seamless switching as described in the claim 13, it is characterized in that 15, the intermediate entities under the described communicating pair comprises one or both in communication initiator's intermediate entities and communication receiver's the intermediate entities.
16, a kind of intermediate entities is characterized in that, comprising:
Receiver module is used for the mobility information that the received communication initiator sends;
Sending module is used for the mobility information that described receiver module receives is sent to the communication receiver.
17, as intermediate entities as described in the claim 16, it is characterized in that, also comprise:
Search module, the HIT that is used for the HIP signaling that receives according to described receiver module searches described communication receiver's address, with the described sending module of described communication receiver's address notification.
18, as intermediate entities as described in the claim 16, it is characterized in that, also comprise:
The address update module is used for being moved described communication initiator, has obtained after the new address, upgrades described communication initiator's address by renewal process.
19, a kind of communication initiator is characterized in that, comprising: information sending module is used for sending mobility information to intermediate entities.
20, as communication initiator as described in the claim 19, it is characterized in that described information sending module comprises: upgrade sending submodule, be used for described mobility information being sent to the communication receiver by renewal process.
21, as communication initiator as described in the claim 19, it is characterized in that, also comprise: update module is used for being moved described communication initiator, obtained after the new address, upgraded described communication initiator's address by the intermediate entities of renewal process under described communication initiator.
22, as communication initiator as described in the claim 19, it is characterized in that, also comprise: module is set, be used for when described communication initiator and described communication receiver all when mobile, be arranged on the types value of Locator parameter in the first request message bag that the communication initiator sends described in handshake procedure, in described Locator parameter, carry the address of the intermediate entities under the described communication initiator.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867524A (en) * | 2010-06-18 | 2010-10-20 | 中国人民解放军国防科学技术大学 | Seamless mobile communication method and system in locator-identifier split network |
| WO2012059010A1 (en) * | 2010-11-02 | 2012-05-10 | 中兴通讯股份有限公司 | Hap handoff method and system |
| CN102611717A (en) * | 2011-01-19 | 2012-07-25 | 中国移动通信集团公司 | Service data sending method and system, client-side agent and server agent |
| CN102612014A (en) * | 2011-01-24 | 2012-07-25 | 上海贝尔股份有限公司 | Method and device for performing mobility management on sensor network by using HIP (host identity protocol) |
| CN105187236A (en) * | 2015-08-12 | 2015-12-23 | 广东睿江科技有限公司 | Network traffic transfer method |
| CN106131060A (en) * | 2016-08-23 | 2016-11-16 | 公安部第三研究所 | Utilize the tcp/ip communication control method of SYN bag manipulative communications deception track |
| CN106992882A (en) * | 2017-03-24 | 2017-07-28 | 北京小米移动软件有限公司 | Router file migration method and apparatus |
-
2008
- 2008-02-01 CN CNA2008100094997A patent/CN101499942A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867524A (en) * | 2010-06-18 | 2010-10-20 | 中国人民解放军国防科学技术大学 | Seamless mobile communication method and system in locator-identifier split network |
| CN101867524B (en) * | 2010-06-18 | 2012-06-06 | 中国人民解放军国防科学技术大学 | Seamless mobile communication method and system in locator-identifier split network |
| WO2012059010A1 (en) * | 2010-11-02 | 2012-05-10 | 中兴通讯股份有限公司 | Hap handoff method and system |
| CN102611717A (en) * | 2011-01-19 | 2012-07-25 | 中国移动通信集团公司 | Service data sending method and system, client-side agent and server agent |
| CN102612014A (en) * | 2011-01-24 | 2012-07-25 | 上海贝尔股份有限公司 | Method and device for performing mobility management on sensor network by using HIP (host identity protocol) |
| CN102612014B (en) * | 2011-01-24 | 2017-03-01 | 上海贝尔股份有限公司 | The method and apparatus moving property of sensor network being managed using HIP |
| CN105187236A (en) * | 2015-08-12 | 2015-12-23 | 广东睿江科技有限公司 | Network traffic transfer method |
| CN106131060A (en) * | 2016-08-23 | 2016-11-16 | 公安部第三研究所 | Utilize the tcp/ip communication control method of SYN bag manipulative communications deception track |
| CN106992882A (en) * | 2017-03-24 | 2017-07-28 | 北京小米移动软件有限公司 | Router file migration method and apparatus |
| CN106992882B (en) * | 2017-03-24 | 2020-06-02 | 北京小米移动软件有限公司 | Router file migration method and device |
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