CN102624759B - A kind of method and node for realizing Data Migration in session - Google Patents
A kind of method and node for realizing Data Migration in session Download PDFInfo
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- CN102624759B CN102624759B CN201110032173.8A CN201110032173A CN102624759B CN 102624759 B CN102624759 B CN 102624759B CN 201110032173 A CN201110032173 A CN 201110032173A CN 102624759 B CN102624759 B CN 102624759B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000005012 migration Effects 0.000 title claims abstract description 42
- 238000013508 migration Methods 0.000 title claims abstract description 42
- 230000006854 communication Effects 0.000 claims description 13
- 238000002372 labelling Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 description 16
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 206010048669 Terminal state Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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Abstract
The present invention provides a kind of method and node for realizing Data Migration in session, and when data generation migration is at the end of session not yet, origin node notifies that the session statuss of new node terminal, origin node retain the control of business of the terminal., according to the session statuss, the subsequent message of forwarding terminal is to origin node for new node.Origin node or new node update session statuss in conversation end.By technical scheme, impact of the Data Migration to session can be avoided.
Description
Technical field
The present invention relates to communication field, more particularly, to the method and node of Data Migration in a kind of P2P networks.
Background technology
P2P, is the abbreviation of English Peer-to-Peer, in be translated into equity interconnection or P-2-P technology.P2P is in file at present
The aspect such as exchange, Distributed Calculation, service be shared has fully shown its powerful technical advantage, but the application of P2P
It is main still to concentrate in Internet applications, the not yet large-scale application in conventional telecommunication network.Consider up till now and incite somebody to action
Come in communication network, the main flow of session control is SIP (conversation initialization) agreement, therefore, P2P technologies are incorporated in telecommunications network
Go, it is necessary to can guarantee that application of the Session Initiation Protocol in P2P networks, while being required to run all kinds of typical services.
Based on considerations above, how P2P technologies are all incorporated into telecommunications being devoted to research by many mechanisms of current industry
Network, Fig. 1 are that a kind of P2P core net frameworks that most researchers and research institution approval are obtained in existing research are illustrated
Figure, wherein：
101 represent P2P overlay networks, and it is made up of all kinds of peer-to-peers (also referred to as node in the present invention) for undertaking different role
A logic network；
102 is the peer node in P2P overlay networks, is the element in P2P overlay networks, and being can be to same
In P2P overlay networks, other nodes provide storage and transmit the node of service；
103 is non-P2P terminal units, does not support any P2P agreements for be linked into P2P overlay networks, only supports Session Initiation Protocol
Terminal unit；
104 is P2P terminal units, for the both supports P2P agreements being linked in P2P overlay networks, also supports the end of IP agreement
End equipment；It is weaker in view of the ability of general terminal unit, particularly hand-held terminal device, so actual portion in many cases
Administration, P2P terminal units are also linked into P2P overlay networks as just P2P clients, do not undertake the service such as storage, transmission
Device；
105 is the access node of the terminal unit such as S103, S104, it is contemplated that the needs of telecommunications operation, including P2P terminals with
Non- P2P terminals all must be linked in P2P overlay networks by access node nearby, when the access node is used as non-P2P terminals
Access node when, while as agent node, be responsible for road inside the Session Initiation Protocol that adopts non-P2P terminals and P2P overlay networks
By the conversion of the adopted agreements of SIP, and when access node of the node as P2P terminals, it is only necessary to which message is relayed.
Fig. 2 is the business process map that a new peer node is added to overlay network, adds node to refer to prepare in figure
The new node for adding stacking network, access node is Current resource responsible node, and registered nodes are mainly responsible for distribution node
Node ID.When adding node to be added to stacking network first, it obtains it to registered nodes by http protocol and configures first
Data, such as network are the Node-ID that it distributes, certificate and related adjacent node routing table information.Add the follow-up basis of node
Adjacent node routing table sends to its access node and adds request, and different DHT algorithms, the then mode for calculating access node differ
Sample, so that by taking Chord algorithms as an example, access node is next-hops of the Node-ID of addition node in Chord rings to the present invention.It is accurate
Ingress is received and adds node to add request, and the Resource ID for being stored are less than the resource migration of addition node to addition
Node, and notify that the adjacent node resource in its adjacency list is had moved new node.Concrete steps include as follows：
201. addition nodes add Overlay stacking networks first, add node to register in network by http protocol
Node sends Attach Request message, and in message, labelling adds the IP address of node；
202. registered nodes are the Node-ID for adding one 128 bit space of node distribution, should to adding node to return attachment
Message is answered, the Bootstrap node address lists in message in labelling Overlay networks, wherein Bootstrap are predominantly added
Node provides the entry address of Overlay networks；
203. add node to send to access node by Overlay networks adds request message, adds node to add first
When entering network, Attach flow processs are triggered, access node is found by Bootstrap；
204. access nodes allow node to access, and return and add request-reply message；
To adding node to send data storage request message, message labelling needs new 205. access nodes according to DHT algorithms
The data that node is responsible for, by taking Chord algorithms as an example, access node is the Resource ID for being stored less than the money for adding node
Source moves to addition node；
206. addition nodes return response message after obtaining success and give access node；
207-208. accesses node sends routing table update request message to its adjacent node, notifies the neighbour in its adjacency list
Connect node and indicate that resource is had moved new node.
Fig. 3 is that sip terminal is linked in P2P stacking networks come by agent node and initiates the flow process for calling.It is concrete to wrap
Include following steps：
301.SIP terminals 1 send SIP session invitation messages to the agent node of P2P stacking networks, and in message, caller is public
User Identity PUI and destination address information or number information；
302. agent nodes according to DHT algorithms caller PUI in message is carried out Hash generate ResourceID, and as
Destination address, in responsible node of the Overlay networks by the protocol addressed caller sip terminals of RELOAD 1, searching is finished, may
Can be connected by the IP that RELOAD agreement Attach processes are set up between agent node and responsible node, and the IP of responsible node
Address information is uploaded to the SIP operation layers of agent node；
303. agent node SIP operation layers, according to the responsible node IP address information that 302 steps are obtained, to responsible node
Send SIP session invitation messages；
304. responsible nodes are sent to peer node the session for receiving, and responsible node may be calculated according to DHT before sending
Method, finds peer node, and the IP connections between setting up by RELOAD layers, obtains peer IP address information, and pass to negative
The SIP operation layers of duty node；
305. responsible node SIP operation layers, according to the peer node IP address information that 304 steps are obtained, to peer node
Send SIP session invitation messages；
306-307. peer nodes receive current session, and original route returns 200OK response messages；
Fig. 4 is described in conversation procedure, and P2P networks occur node and add, and cause the scene of Data Migration.
401.SIP terminals are setting up session by P2P networks and peer node；
402. newly added nodes send to origin node and add request message；
403. can perform data migration process according to prior art, origin node, related Data Migration to new node.
Transition process is described with Fig. 2
When Data Migration is initiated in conversation procedure, as conversation procedure Central Plains service node is produced in conversation procedure
Temporary variable associated with the session and dynamic data may be backed up not over RELOAD layers, when Data Migration is to new addition
Node, may make the loss of these data, the session set up and communicating in eventually affecting data migration process.
The content of the invention
The technical problem to be solved in the present invention is to provide the data migration method during a kind of P2P BlueDramas and section
Point, makes the session service control just in conversation procedure remain in origin node, until conversation end, so as to avoid data from moving
Move the impact to session.
The present invention provides a kind of method for realizing Data Migration in session.Origin node notifies the session shape of new node terminal
State, origin node retain the control of business of terminal；, according to session statuss, the subsequent message of forwarding terminal is to origin node for new node；
Origin node or new node update session statuss in conversation end.
Further, origin node is when terminal session invitation message is received, or, origin node is receiving the addition of new node
Request message, or origin node to new node send leave request message when, origin node notify new node described in terminal session
State.
Further, session statuss include：The address information and/or terminal session status indication information of origin node.Wherein,
Address information refers to the IP address information or node identification Node-ID of origin node.
Further, according to session statuss, the subsequent message of forwarding terminal is referred specifically to new point to origin node：New node is received
The subsequent message of terminal, according to terminal session status indication information, judges that the session of terminal is in foundation in Data Migration
Or in communication, and not yet terminate, then the address information according to the origin in session statuss, forwarding terminal subsequent message is to institute
Origin node.
Or, after new node receives session statuss, then it is assumed that the session of terminal be in Data Migration foundation or
In communication, and not yet terminate；After the new node receives the subsequent message of terminal, according to the origin node in session statuss
Address information, forwarding terminal subsequent message is to origin node.
Further, origin node notifies that the session statuss of terminal described in the new node include：Industry of the origin node in terminal
Labelling session statuss in business data, move to new node with business datum.
Further, no labelling session statuss in new node finds terminal traffic data, then not the follow-up of terminal
Message is transmitted to origin node.
Further, origin node or new node update session statuss and include in conversation end：Origin node receives terminal
Or the opposite end of terminal release message when, origin node discharges the session, notifies that new node updates session statuss；Or, it is former
Node discharges the session when intervalometer T1 is overtime, notifies that new node updates session statuss；Or, new node is in intervalometer
When T2 is overtime, session statuss are updated.
Further, intervalometer T1 is arranged when session establishment or data are shifted by origin node, and T1 durations are by operator
Policy development.Intervalometer T2 is arranged when Data Migration is received by new node, and the T2 durations are formulated by carrier policy, or
Person, is arranged and be marked at by origin node in the business datum of terminal, move to new node with business datum.
The present invention also provides a kind of node for realizing Data Migration in session.The node notifies the session shape of new node terminal
State, the node retain the control of business of terminal；The node according to new node forward come terminal subsequent message, continue with
The session of terminal；The node updates session statuss in conversation end, or notifies that new node updates session statuss.
Further, the node is when terminal session invitation message is received, or, node please in the addition for receiving new node
Message, or node is asked to send to new node when leaving request message, the node notifies the session statuss of new node terminal.
Further, the node notifies that the session statuss of new node terminal can be the labelling institute in the business datum of terminal
Session statuss are stated, and the new node are moved to business datum.
Further, the node updates session statuss in conversation end, or notifies that new node renewal session statuss can
To be：When the node receives the release message of the opposite end of terminal or terminal, node discharges the session, notifies that new node updates
Session statuss；Or, when intervalometer T1 is overtime, releasing session notifies that new node updates the session statuss to node.
The present invention also provides a kind of node for realizing Data Migration in session.The node receives the terminal of origin node notice
After session statuss, according to session statuss, the subsequent message of forwarding terminal is to origin node, and the more new session shape in conversation end
State.
Further, according to session statuss, the subsequent message of forwarding terminal is referred specifically to the node to origin node：The node is received
To the subsequent message of terminal, the origin node is given according to the origin node address information forwarding terminal subsequent message in session statuss.
Further, the node updates session statuss and includes in conversation end：The node receive the origin node lead to
When knowing, or when intervalometer T2 is overtime, the session statuss are updated.
By data migration method and node during the P2P BlueDramas that the present invention is provided, make just in conversation procedure
In session service control remain in origin node, until conversation end, so as to avoid impact of the Data Migration to session.
Description of the drawings
Fig. 1 is P2P core network system configuration diagrams
Fig. 2 is added to the business process map of P2P overlay networks for new peer node in prior art
Fig. 3 be prior art in sip terminal be linked into P2P stacking networks in and initiate call flow chart
Fig. 4 is the flow chart of Data Migration in prior art
Fig. 5 is flow chart when embodiment of the present invention new node is added
Fig. 6 is flow chart when embodiment of the present invention origin node is exited
Fig. 7 is the flow chart that embodiment of the present invention new node forwards messages to origin node process
Fig. 8 is the process chart after embodiment of the present invention T2 timer expiry
Fig. 9 is the process chart after embodiment of the present invention T1 timer expiry
Specific embodiment
Below by several embodiments, the present invention is described in further detail.
Fig. 5 is the embodiment of the present invention one, and scene P2P network sip terminal and the opposite end of description just in session establishment or lead to
During news, new node is added, and former responsible sip terminal service node, i.e. origin node move to the business datum of the terminal
New node, origin node continue the session control for keeping the terminal, and until conversation end, its idiographic flow is described as follows shown：
501.SIP terminals 1 are linked into P2P networks by agent node, and are set up with peer node by P2P networks
Session or session are had built up just in communication process, and detail may be referred to Fig. 3 flow processs；
502. origin nodes notify the session statuss of new node terminal when receiving sip terminal 1 and setting up session.
The method of notice can be that origin node adds session statuss to sip terminal business datum area, and is moved by data
Move, the session statuss are migrated in the lump to new node.
Session statuss include the address information of origin node.It can in addition contain include session statuss configured information.
Address information can be the Node-ID of origin node, or the IP address information of origin node.Session statuss indicate letter
Breath is set to Semi-Active states, represents that session does not terminate.
When new node judges whether session statuss, or, terminal is judged according to session statuss configured information
During whether session is in foundation or communicates in Data Migration, and not yet terminate.
For example, origin node and new node include the method that address information adds session statuss configured information using session statuss.
Then origin node notifies session statuss to after new node, when new node judges to draw Data Migration according to session statuss configured information
It is in foundation or not yet terminates in communicating, then the subsequent message of terminal is given to into origin node.
Again for example, the method for origin node and new node using session statuss only including address information.Then origin node is by session
After state notifying is to new node, new node receives session statuss and then feels the need to for the subsequent message of terminal to be given to origin node.
In addition, session statuss can also include arranging T1 intervalometers by origin node, timer duration is formulated by migration efficiency.
Session statuss can also include arranging T2 intervalometers by origin node or new node.T1 and T2 intervalometers are used to indicate that new node exists
After timer expiry, remove or change session statuss and be designated as Idle states.
It should be noted that 502 steps can also occur after 503 steps or 504 steps or 505 steps, this patent
Here it is not restricted.If method of the notification procedure of 502 steps using session statuss are added in data field, 502 steps are 505
Complete before step.
503. new nodes are added to P2P overlay networks, send to origin node and add request message.
504. origin nodes allow new node to add, and return response message to new node；
505. origin nodes perform data migration process, and detailed step is referring to Fig. 2 flow processs；
Control of business of the 506. origin node preserving sessions status indication informations for Semi-Active sessions；
507a-507b. origin nodes receive the release message of the release of sip terminal 1 and opposite end call release, and origin node release is exhaled
Cry；
508. update session statuss.
If session statuss configured information is contained in session statuss, session statuss are removed or are changed to new node and is indicated
Information is Idle states.The Store orders in RELOAD agreements, Resource of the destination address for sip terminal 1 can be passed through
ID。
If session statuss configured information is not included in session statuss, session statuss are updated, such as by deleting address information,
To make new node that the subsequent message of terminal are forwarded to origin node no longer.
Fig. 6 is the embodiment of the present invention two, the scene P2P network sip terminal of description and peer node just in session establishment or
In person's communication process, origin node gracefulness is exited, and former responsible sip terminal service node moves to the business datum of the terminal newly
Node, origin node continue the session control for keeping the terminal, and until conversation end, its idiographic flow is described as follows shown：
The same 501-502 of 601-602, and Notification Method, session statuss it is content-defined etc. also all with described in Fig. 5 embodiments
It is identical.
603. origin nodes prepare to exit P2P networks, and origin node exits request message to the new node transmission that will replace it；
What 604. new nodes received origin node exits request message, returns to responsible node and exits response request-reply and disappear
Breath；
605. origin nodes perform data migration process；
The same 506-507 of 606-607；
608 same 508.
When in origin node, all sessions all terminate, origin node just really exits P2P networks；
Fig. 7 is the embodiment of the present invention three, the scene P2P network sip terminal of description and peer node just in session establishment or
In person's communication process, after new node Data Migration is finished, receive from sip terminal 1 message or be sent to disappearing for sip terminal 1
Breath, new node forward the message to origin node process according to session statuss, and concrete steps include as follows：
701.SIP terminals 1 are being set up in session or communication process with peer node, and new node is added to P2P networks,
Origin node moves to new node the business datum of sip terminal 1.
702. new nodes receive nodes from sip terminal 1 or are sent to the sip message of sip terminal 1.
703. new nodes carry out 704 steps according to session statuss.
If origin node adds session statuss to sip terminal business datum area, and by Data Migration, by the session statuss one
And migrate to new node, then in 703 steps, new node carries out 704 steps according to the session statuss in 1 business datum of sip terminal.
The concrete mode judged according to session statuss with it is identical described in Fig. 5 embodiments.
704. new nodes are transmitted to origin node the message for receiving.
The scene P2P network sip terminal of Fig. 8 descriptions, is newly saved with peer node just in session establishment or communication process
After point data migration is finished, in T2 timer expiries, new node updates session statuss, and concrete steps include as follows：
801. same 701.
802. new nodes judge T2 timer expiries, update session statuss.Concrete grammar can be that new node passes through
Store orders in RELOAD agreements are revised as Idle current sessions status indication information, or remove session statuss.
T2 intervalometers are set up when Data Migration is received by new node, T2 timer durations by carrier policy formulate or
Informed by origin node, informing method can be：
T2 timer durations are formulated by origin node, are stored in the business datum of sip terminal 1, in Data Migration, from original
Node moves to new node.
The scene P2P network sip terminal of Fig. 9 descriptions, is newly saved with peer node just in session establishment or communication process
After point data migration is finished, in T1 timer expiries, origin node call release, and session statuss instruction is removed or changes,
Concrete steps include as follows：
901. same 801.
902. origin nodes judge T1 timer expiries.
903. origin nodes discharge the session of sip terminal 1.
904. notify that new node updates session statuss.
Can notify that new node is removed or changed session statuss and indicates, concrete grammar can pass through RELOAD with new node
Store orders in agreement are revised as Idle current sessions state instruction or remove session statuss.
T1 intervalometers by origin node in session establishment, or data shift when set up, T1 timer durations are by operator
Policy development.
The present invention also provides a kind of node of Data Migration in session.When the node is origin node, with following characteristics：
The node notifies the session statuss of new node terminal, and the node retains the control of business of the terminal；The node
According to new node forward come terminal subsequent message, continue with the session of terminal；The node updates meeting in conversation end
Speech phase, or notify that new node updates session statuss.The wherein definition of session statuss is identical with preceding method embodiment.
Particularly, the node is when terminal session invitation message is received, or, ask to disappear in the addition for receiving new node
Cease, or the node is sent to new node when leaving request message, the node notifies the session statuss of terminal described in new node.
Particularly, the node notifies that the method for new node session statuss can be the labelling in the business datum of the terminal
Session statuss, move to new node with business datum.
The node updates session statuss in conversation end, or notifies that new node updates session statuss and can be：The section
During the release message of the opposite end that point receives the terminal or the terminal, the session is discharged, and notifies the new node more
The new session statuss.Or, the node discharges the session when intervalometer T1 is overtime, notifies that the new node updates institute
State session statuss.The wherein definition of intervalometer T1 is identical with preceding method embodiment.
In addition, when the node is new node, with following characteristics：
After the node receives the session statuss of the terminal of origin node notice, according to session statuss, forwarding terminal subsequently disappears
Cease to origin node, and session statuss are updated in conversation end.
Wherein, the node receives the subsequent message of the terminal, according to session statuss, judges that the session of the terminal exists
In foundation being in during Data Migration or being communicated, and not yet terminate, then according to the origin node address information in session statuss
The SS later message is forwarded to origin node.
The node is notified according to origin node, or when intervalometer T2 is overtime, updates the session statuss.
Certainly, the present invention can also have other various embodiments, in the case of without departing substantially from spirit of the invention and its essence, ripe
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (16)
1. a kind of method for realizing Data Migration in session, it is characterised in that：In P2P networks sip terminal with opposite end just in session
In foundation or communication process,
Origin node notifies that the session statuss of new node sip terminal, the origin node retain the control of business of the sip terminal；
The origin node is the service node of former responsible sip terminal；
The new node forwards the subsequent message of the sip terminal to the origin node according to the session statuss；
The origin node or the new node update the session statuss in conversation end.
2. the method for claim 1, it is characterised in that
The origin node when the sip terminal session invitation message is received, or, the origin node is receiving the new node
Addition request message, or the origin node sent to the new node when leaving request message, and the origin node notifies institute
State the session statuss of sip terminal described in new node.
3. the method for claim 1, it is characterised in that the session statuss include：The address information of the origin node
And/or the sip terminal session statuss configured information；
Wherein, the address information refers to the IP address information or node identification Node-ID of the origin node.
4. method as claimed in claim 3, it is characterised in that the new node forwards the SIP according to the session statuss
The subsequent message of terminal is referred specifically to the origin node：
The new node receives the subsequent message of the sip terminal, according to the sip terminal session statuss configured information, judges
During the session of the sip terminal is in foundation or communicates in Data Migration, and not yet terminate, then according to the session
The address information of the origin node in state, forwards the sip terminal subsequent message to the origin node.
5. method as claimed in claim 3, it is characterised in that the new node forwards the SIP according to the session statuss
The subsequent message of terminal is referred specifically to the origin node：
After the new node receives the session statuss, then judge that the session of the sip terminal is in Data Migration
In setting up or communicating, and not yet terminate；After the new node receives the subsequent message of sip terminal, according to the session
The address information of the origin node in state, forwards the sip terminal subsequent message to the origin node.
6. the method for claim 1, it is characterised in that origin node notifies the session of sip terminal described in the new node
State includes：
Origin node session statuss described in labelling in the business datum of the sip terminal, move to business datum described
New node.
7. method as claimed in claim 6, it is characterised in that
Whether the new node has session statuss described in labelling in judging the sip terminal business datum, if having, described
The subsequent message of sip terminal is transmitted to the origin node.
8. the method for claim 1, it is characterised in that the origin node or the new node in conversation end more
The new session statuss include：
When the origin node receives the release message of the opposite end of the sip terminal or the sip terminal, the origin node release
The session, notifies that the new node updates the session statuss；Or,
The origin node discharges the session when intervalometer T1 is overtime, notifies that the new node updates the session statuss；Or
Person,
The new node updates the session statuss when intervalometer T2 is overtime.
9. method as claimed in claim 8, it is characterised in that the intervalometer T1 by the origin node in session establishment or
Arrange when data are shifted, the T1 durations are formulated by carrier policy；
The intervalometer T2 is arranged when Data Migration is received by the new node, and the T2 durations are formulated by carrier policy,
Or, arranged and be marked at by the origin node in the business datum of the sip terminal, the new section is moved to business datum
Point.
10. a kind of node for realizing Data Migration in session, it is characterised in that the node is the service of former responsible sip terminal
Node,
First device, notifies new node in P2P networks sip terminal and opposite end just in session establishment or communication process
The session statuss of sip terminal, retain the control of business of the sip terminal；
Second device, for according to the new node forward come the sip terminal subsequent message, continue with the SIP
The session of terminal；
3rd device, for the session statuss are updated in conversation end, or notifies that the new node updates the session
State.
11. nodes as claimed in claim 10, it is characterised in that when the sip terminal session invitation message is received, or
Person, receiving the addition request message of the new node, or sends to the new node when leaving request message, described first
Device notifies the session statuss of sip terminal described in the new node.
12. nodes as claimed in claim 10, it is characterised in that notify the session statuss of sip terminal described in the new node
Refer specifically to：
In the business datum of the sip terminal, session statuss described in labelling, move to the new node with business datum.
13. nodes as claimed in claim 10, it is characterised in that the session statuss, Huo Zhetong are updated in conversation end
Know that the new node updates the session statuss and refers specifically to：
During the release message of the opposite end for receiving the sip terminal or the sip terminal, the session is discharged, notify described new
Session statuss described in node updates；Or,
When intervalometer T1 is overtime, the session is discharged, notify that the new node updates the session statuss.
14. a kind of nodes for realizing Data Migration in session, it is characterised in that include：
4th device, receives origin node in P2P networks sip terminal and opposite end just in session establishment or communication process
The session statuss of the sip terminal of notice；
5th device, for receiving after the session statuss of the sip terminal of origin node notice, according to the session statuss, forwards institute
The subsequent message of sip terminal is stated to the origin node；
6th device, for the session statuss are updated in conversation end；
The origin node is the service node of former responsible sip terminal.
15. nodes as claimed in claim 14, it is characterised in that according to the session statuss, after forwarding the sip terminal
Continuous message is referred specifically to the origin node：
The subsequent message of the sip terminal is received, the SIP ends are forwarded according to the origin node address information in the session statuss
End subsequent message gives the origin node.
16. nodes as claimed in claim 14, it is characterised in that the session statuss are updated in conversation end to be included：
When the origin node notice is received, or when intervalometer T2 is overtime, the session statuss are updated.
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| CN201110032173.8A CN102624759B (en) | 2011-01-28 | 2011-01-28 | A kind of method and node for realizing Data Migration in session |
| PCT/CN2011/080709 WO2012100560A1 (en) | 2011-01-28 | 2011-10-12 | Method and nodes for implementing data migration in session |
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| RU2706173C1 (en) | 2016-01-05 | 2019-11-14 | Хуавей Текнолоджиз Ко., Лтд. | Method, equipment and device for mobile communication |
| CN109996350A (en) * | 2018-01-03 | 2019-07-09 | 大唐移动通信设备有限公司 | Conversation modes optimization method and device in a kind of 5G system |
| CN109445718A (en) * | 2018-11-16 | 2019-03-08 | 广东小天才科技有限公司 | A kind of method for writing data and system based on Data Migration |
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| CN101079759A (en) * | 2007-07-24 | 2007-11-28 | 杭州华三通信技术有限公司 | Distributed bidirectional forwarding detection method and device |
| CN101848444A (en) * | 2009-03-23 | 2010-09-29 | 华为终端有限公司 | Called processing method, system and network node |
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| US8166176B2 (en) * | 2006-05-31 | 2012-04-24 | Alcatel Lucent | Context-aware migration of communication session |
| CN101399768B (en) * | 2007-09-30 | 2011-04-20 | 华为技术有限公司 | Policy control method, device and system |
| CN101242665B (en) * | 2008-03-17 | 2012-07-18 | 中兴通讯股份有限公司 | A switching method for multimedia session continuity |
| CN101789960B (en) * | 2009-12-31 | 2013-10-09 | 中国人民解放军国防科学技术大学 | Neighbor session load processing method and device |
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| CN101079759A (en) * | 2007-07-24 | 2007-11-28 | 杭州华三通信技术有限公司 | Distributed bidirectional forwarding detection method and device |
| CN101848444A (en) * | 2009-03-23 | 2010-09-29 | 华为终端有限公司 | Called processing method, system and network node |
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