CN101841522A - SIP network and P2PSIP network intercommunication method and system - Google Patents
SIP network and P2PSIP network intercommunication method and system Download PDFInfo
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Abstract
The invention provides an SIP network and P2PSIP network intercommunication method and a system. Wherein a call routing process in which a node in a P2PSIP network initiates a conversation is as follows: the P2PSIP conversation initiating node inquires the address of an SIP proxy node form a DNS server, and sends an SIP INVITE request to the SIP proxy node; and the SIP proxy node forwards the request to an SIP conversation target node so as to realize the intercommunication between the SIP conversation target node and the P2PSIP conversation initiating node. The call routing process in which the node in an SIP network initiates the conversation is as follows: an SIP conversation initiating node inquires the address of a P2PSIP proxy node from the SIP proxy node, and forwards the SIP INVITE request to the P2PSIP proxy node; and the P2PSIP proxy node finds out the address of a P2PSIP conversation target node and forwards the SIP INVITE request to the P2PSIP conversation target node so as to realize the intercommunication between the P2PSIP conversation target node and the SIP conversation initiating node. The invention solves the problem of the intercommunication between the P2PSIP network and the SIP network.
Description
Technical field
The present invention relates generally to the method for a kind of client-server mode session initiation protocol and the intercommunication of self-organizing network Session initiation Protocol, more particularly, be applicable to traditional SIP network and P2PSIP BlueDrama initiation protocol interoperability methods.
Background technology
SIP (Session Initiation Protocol, Session initiation Protocol) is one of multimedia communication application layer control protocol of formulating of the Internet engineering duty group (IETF), is used to set up, revise and stops both sides or Multimedia session in many ways on the IP network.Plurality of advantages such as this agreement is simple by means of it, be easy to expand, be convenient to realize more and more obtain the favor of industry, and it just progressively becomes the important protocol in NGN (next generation network) and the 3G multimedia subsystem domain.
At client/server (Client/Server, abbreviation C/S) in the network architecture, server is a server, and client computer is the basis of network, client computer relies on server to obtain needed Internet resources, and server provides network necessary resource for client computer.Along with increasing of client, the pressure of server must increase, and probably can cause server owing to overload is collapsed.
Tradition SIP network also is centralized C/S framework: traditional SIP network uses registrar to carry out the registration of user network position, needs sip agent node or SIP reorientation server to carry out the route of sip message.Tradition SIP uses home server and DNS that next jumping inquiry service of sip message is provided.Owing to adopt centralized framework, there is the problem such as reliability aspects such as single point failures in traditional SIP.Moreover, high expense is gone up in configuration and maintenance, and the bottleneck that the requirement of hardware performance is all become traditional SIP development.
In contrast to this, peer-to-peer network (P2P) is as a kind of emerging technology, make up overlay network based on existing the Internet, share computer resource and service by the peer switch between the system, realized complete distributed, can expand, reliably, the network application mode of stalwartness.With the network schemer of traditional client/server remarkable difference is arranged, the C/S network schemer needs a central server carry out the data distribution, for client provides corresponding service.And in peer-to-peer network, computer forms network with Peer and connects, and node not only serves as server but also serve as the role of client.Just because of the advantage of P2P technology at aspects such as decentralization, extensibility and robustnesses, it is widely used in the every field of computer network, as file download, Streaming Media, ip voice communication etc., increasing user selects to use these business and application based on the P2P technology.
Along with popularizing of P2P technology, there is the people that sip technique and P2P framework are combined, just P2PSIP technology, i.e. peer-to-peer network session initiation protocol technology.The advantage of P2PSIP technology is the interconnect problem that both can solve between the P2P system, can solve the single point failure and the performance bottleneck problem of SIP system again, and can run on public internet.Therefore, P2PSIP can be applied to very wide scene.
The dynamic resource storage algorithm that is based on distributed hashtable of P2PSIP network architecture utilization makes some users form a particular network.Distributed hashtable is under the situation that does not need server, and each user is responsible for a route among a small circle, and is responsible for storage sub-fraction data, thereby realizes the addressing and the storage of whole overlay network.In the specific implementation, normally adopt key assignments (Key-Value) pattern, by the distributed hash function, unique being mapped on certain node of key assignments (key) with input connects with this node by some routing algorithm then.Many achievements in research have been produced in the DHT field at present, for example Chord, CAN, Tapestry etc.These DHT Overlay externally provide similar to the traditional Hash table function that deposits in and take out.
Enter the nineties, the client-server pattern is popular rapidly, and along with development of internet technology, the P2PSIP network is also promptly come in people's the life, and two kinds of network long-term co-existence are among society.Because must exchange of information between two kinds of networks, and the initiation of session be simple more good more rapidly, and therefore a kind of existence of the method that makes the intercommunication that two kinds of networks can be good just seems very important.In view of this consideration, we have proposed the method for a kind of client-server mode session initiation protocol and the intercommunication of self-organizing network Session initiation Protocol.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and system of a kind of SIP network and P2PSIP network interworking, solves the intercommunication problem between P2PSIP network and traditional SIP network.
According to an aspect of the present invention, the method of a kind of SIP network and P2PSIP network interworking is proposed, the calling route flow process that comprises the node initiation session in the P2PSIP network, and the calling route flow process of the node initiation session in the SIP network, wherein, the calling route flow process of the node initiation session in the P2PSIP network, may further comprise the steps: the P2PSIP session is initiated node and is initiated query requests to dns server, inquire about the sip agent address of node, and the sip agent node is issued in SIP INVITE request; The sip agent node receives the P2PSIP session and initiates the SIP INVITE request that node sends, and request is transmitted to SIP session target node; SIP session target node receives SIP INVITE request, initiates the node intercommunication with the P2PSIP session; The calling route flow process of the node initiation session in the SIP network may further comprise the steps: the SIP session is initiated node and is sent SIP INVITE request to the sip agent node, the address of inquiry P2PSIP agent node; The sip agent node is initiated query requests to dns server, obtains the address of P2PSIP agent node, and SIP INVITE request is transmitted to the P2PSIP agent node; The P2PSIP agent node receives the SIP INVITE request of sip agent node, finds P2PSIP session target address of node by distributed hashtable, and transmits SIP INVITE request to it; P2PSIP session target node receives SIP INVITE request, initiates the node intercommunication with the SIP session.
Further, the sip agent node is initiated query requests to dns server, obtains the address of P2PSIP agent node, may further comprise the steps: the sip agent node is initiated query requests to dns server, carries the P2PSIP domain names in query requests; In dns server, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address; According to stored relation, dns server returns the address of P2PSIP agent node to the sip agent node.
Further, in dns server, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address, may further comprise the steps: add at new node, when agent node withdraws from or agent node lost efficacy, dynamically update the P2PSIP agent node; The P2PSIP agent node address after upgrading and the corresponding relation of P2PSIP domain names are saved in the dns server.
Further, the P2PSIP session is initiated node, P2PSIP session target node and P2PSIP agent node all by SIP URI unique identification.
Further, node is initiated operation from query requests to dns server is initiated in the P2PSIP session, further comprising the steps of: the P2PSIP session is initiated node and is initiated query requests by the P2PSIP agent node to dns server, and the P2PSIP agent node of this initiation query requests is not same agent node with the P2PSIP agent node of the SIP INVITE request that receives the sip agent node.
According to a further aspect of the invention, also propose the system of a kind of SIP network and P2PSIP network interworking, comprise SIP network, P2PSIP network and dns server, wherein, dns server, the information of storing all agent nodes comprises P2PSIP agent node and sip agent node; Receive the P2PSIP session and initiate the query requests of node, and return the sip agent address of node; Receive the query requests of sip agent node, and return the address of P2PSIP agent node; The P2PSIP network comprises: node is initiated in the P2PSIP session, initiates query requests to dns server, inquires about the sip agent address of node, and the sip agent node is issued in SIP INVITE request; P2PSIP session target node receives SIP INVITE request, initiates the node intercommunication with the SIP session; The P2PSIP agent node receives the SIP INVITE request of sip agent node, finds P2PSIP session target address of node by distributed hashtable, and transmits SIP INVITE request to it; The SIP network comprises: node is initiated in the SIP session, sends SIP INVITE request to the sip agent node, the address of inquiry P2PSIP agent node; SIP session target node receives SIP INVITE request, initiates the node intercommunication with the P2PSIP session; The sip agent node receives the P2PSIP session and initiates the SIP INVITE request that node sends, and request is transmitted to SIP session target node; Initiate query requests to dns server, the address that obtains the P2PSIP agent node, and SIP INVITE request is transmitted to the P2PSIP agent node.
Further, the P2PSIP network has unique domain name.
Further, the P2PSIP session is initiated node, P2PSIP session target node and P2PSIP agent node all by SIP URI unique identification.
Further, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address in the dns server.
Further, when the P2PSIP agent node adds at new node, agent node withdraws from or agent node lost efficacy, dynamically update.
Compared with prior art, the invention solves intercommunication problem between P2PSIP network and traditional SIP network.Have more flexibility, have stronger adaptability.Wherein:
P2PSIP user's initiation session can not passed through agent node, and P2PSIP user can directly initiate query requests to DNS, and this just makes the mode of initiation session that alternative arranged, and the burden of agent node has also reduced, and flow process has also been simplified.
Agent node can be selected a plurality of in the P2PSIP network, the P2PSIP agent node of initiating query requests is elected different agent nodes respectively with the P2PSIP agent node of the SIP INVITE request that receives the sip agent node, thereby disperse to initiate or receive the burden that request causes.
Dynamic election also makes the performance of agent node be guaranteed.Incidents such as the withdrawing from of agent node, new node adding, agent node inefficacy all may trigger new election.The election of P2PSIP agent node is based on the ability of node, as line duration, bandwidth, CPU, internal memory or the like.The P2PSIP agent node that election is come out has that autgmentability is strong, good reliability, low cost and the easy advantage of deployment.
Description of drawings
Fig. 1 is the calling route flow chart of the node initiation session in the P2PSIP network of the present invention.
Fig. 2 is the calling route flow chart of the node initiation session in the present invention's tradition SIP network.
Fig. 3 is the calling route flow process embodiment of the node initiation session in the P2PSIP network among the present invention.
Fig. 4 is the calling route flow process embodiment of the node initiation session in traditional SIP network among the present invention.
Fig. 5 is the system construction drawing of SIP network among the present invention and P2PSIP network interworking
Fig. 6 is P2PSIP network in the system of the present invention.
Fig. 7 is SIP network in the system of the present invention.
Embodiment
The method of a kind of SIP network and P2PSIP network interworking, comprise the calling route flow process of the node initiation session in traditional SIP network and the calling route flow process of the node initiation session in the P2PSIP network, specify the implementation procedure of above-mentioned flow process below in conjunction with accompanying drawing.
Fig. 1 is the calling route flow chart of the node initiation session in the P2PSIP network of the present invention.In order more clearly to represent call flow, suppose that the P2PSIP network is C, the node that participates in this network calling out is A, and traditional SIP network is D, and the node that participates in this network calling out is B.As node A in P2PSIP network C when Node B initiates a session request in traditional SIP network D, it is as follows to call out the route flow process:
In step 101, node A initiates query requests to dns server, the agent node address of query node B place network D.Node in the P2PSIP network can be initiated query requests to dns server, and this is the characteristics of P2PSIP network.In the framework that interconnects based on dns server, each P2PSIP network all has unique domain name, and dns server is replied the domain name query requests according to the routing iinformation of storage.The P2PSIP network is that decentralization distributes, and a plurality of nodes are arranged.
In step 102, after dns server is received query requests, the agent node address of network D is returned to node A.The agent node of tradition SIP network is taken on by special sip server.
In step 103, node A issues SIP INVITE request the agent node of network D.
In step 104, the agent node of network D is transmitted to target node b with request, realizes the intercommunication of node A and Node B.Traditional SIP network is the distribution of centralization, and node must pass through agent node when the receipt of call request, can find address of node in the network by agent node.
Fig. 2 is the calling route flow chart of the node initiation session in the present invention's tradition SIP network.When Node B among traditional SIP network D when node A sends conversation request in the P2PSIP network C, it is as follows to call out the route flow process:
In step 201, Node B is sent SIP INVITE request, the agent node address of query node A place network C to the agent node of network D.
In each P2PSIP network agent node is arranged all, will inquire about and transmit by agent node during node receipt of call in the P2PSIP network.The agent node of P2PSIP network not only can be taken on by specialized server, can also take on by the good node of election performance.An ordinary node among the present invention is equivalent to a user in the reality.
The present invention is choosing dynamically election of employing on the P2PSIP agent node, the P2PSIP network has the information that some mechanism are understood whole network node, therefrom select one or several best node of performance to come when acting on behalf of node (because agent node can be born functions such as forwarding), as line duration, bandwidth, CPU, internal memory or the like.Incidents such as agent node withdraws from, new node adds, agent node inefficacy all may trigger new election, and whole network is reselected agent node and informed all nodes, that is to say that whole network is in the state of a Dynamic Maintenance.The P2PSIP agent node that election is come out has that autgmentability is strong, good reliability, low cost and the easy advantage of deployment.
In step 202, the agent node of network D is initiated query requests to dns server.Traditional SIP network node can be initiated the inquiry the inside to dns server by agent node and stored address of node information, and DNS should store the information of all agent nodes.
In step 203, dns server returns to the agent node address of node A place network C the agent node of network D.
In step 202～step 203, the agent node of network D is initiated query requests to dns server, dns server returns to the agent node address of node A place network C the agent node of network D, may further comprise the steps: the agent node of network D is initiated query requests to dns server, carries the P2PSIP domain names in query requests; In dns server, preserve the corresponding relation of the agent node address of P2PSIP domain names and node A place network C; According to stored relation, dns server is to the agent node address of sip agent node return node A place network C.
Further, in dns server, preserve in the operation of corresponding relation of agent node address of P2PSIP domain names and node A place network C, may further comprise the steps: in the new node adding, when agent node withdraws from or agent node lost efficacy, dynamically update the agent node address of network C, and the corresponding relation of the agent node address of the network C after will upgrading and P2PSIP domain names is saved in the dns server.
In step 204, the agent node of network D is transmitted to SIP INVITE request the agent node of network C.
In step 205, after the agent node of network C is received request, find the address of destination node A, and SIP INVITE request is forwarded to node A by distributed hashtable, realize the intercommunication of Node B and node A.Node in arbitrary P2PSIP territory facilitates the use address of node in this network of distributed hash list query by SIP URI unique identification.
Traditional SIP network is the C/S framework, and key is that agent node can inquire the network address of node in this SIP network, can carry out routing forwarding.As the agent node of traditional SIP network, be that sip server is taken on normally by special server.
The P2PSIP network is the distribution of a decentralization, and each node all is reciprocity, and the P2PSIP network has agent node, therefore, node can be initiated query requests to dns server by self or agent node, to obtain targeted customer's relevant information, call request is arrived faster.Will transmit by agent node during node receipt of call in the P2PSIP network, and agent node both can have been taken on by the good user node of through performance, also can be taken on by special server.
Compare former method, the method of this client-server mode session initiation protocol and the intercommunication of self-organizing network Session initiation Protocol, P2PSIP user's initiation session can not passed through agent node, P2PSIP user can directly initiate query requests to DNS, this just makes the mode of initiation session that alternative arranged, the burden of agent node has also reduced, and flow process has also been simplified.Further, agent node can be selected a plurality ofly in the P2PSIP network, disperse to initiate or receive the burden that request causes, and dynamic election also makes the performance of agent node be guaranteed.Therefore, the invention solves intercommunication problem between P2PSIP network and traditional SIP network.Have more flexibility, have stronger adaptability.
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail:
Fig. 3 is the calling route flow chart of the node initiation session in the P2PSIP network among the present invention.As the indefiniteness example, Fig. 3 represents is the calling route flow process that the node A that is arranged in the P2PSIP network calls out the Node B of traditional SIP network.Wherein, the node A that is arranged in P2PSIP network msn.p2p will send SIPInvite message to the Node B that is positioned at traditional SIP network yahoo.cs.
At first, node A sends query requests to dns server, and dns server finds the agent node address of B@yahoo.cs place network, and gives node A with the agent node address.
Then, node A sends to request message Invite:B@yahoo.cs the agent node of Node B place network.
At last, the agent node of yahoo.cs finds the address of B@yahoo.cs, and Invite:B@yahoo.cs is transmitted to Node B.Thereby finished the calling route flow process that node A among the P2PSIP network msn.p2p calls out the Node B among traditional SIP network yahoo.cs.
Fig. 4 is the calling route flow chart of the node initiation session in traditional SIP network among the present invention.As the indefiniteness example, Fig. 4 represents is the calling route flow chart that the Node B that is arranged in traditional SIP network configuration is called out the node A of P2PSIP network.Wherein, the Node B that is arranged in traditional SIP network configuration yahoo.cs will send SIP Invite message to the A that is arranged in P2PSIP network configuration msn.p2p.
At first, Node B sends to SIP Invite message Invite:A@msn.p2p in the agent node of yahoo.cs.
Secondly, the agent node in yahoo.cs territory is initiated query requests to dns server.After dns server is received query requests, find the agent node address of msn.p2p, and the address is returned to the agent node of yahoo.cs.
Then, the agent node of yahoo.cs is issued Invite:A@msn.p2p information the agent node of msn.p2p.
At last, the agent node of msn.p2p inquires the address of node A, and Invite:A@msn.p2p information is issued node A.Node B sends to node A by the agent node of msn.p2p and the agent node of yahoo.cs with A@msn.p2p, thereby has finished the calling route flow process of the node initiation session in traditional SIP network.
Fig. 5 comprises SIP network, P2PSIP network and dns server for the system construction drawing of SIP network among the present invention and P2PSIP network interworking.Wherein:
Dns server is stored the information of all agent nodes, comprises P2PSIP agent node and sip agent node.Receive the P2PSIP session and initiate the query requests of node, and return the sip agent address of node; Receive the query requests of sip agent node, and return the address of P2PSIP agent node.
Node in the P2PSIP network can be initiated query requests to dns server, and this is the characteristics of P2PSIP network.In the framework that interconnects based on dns server, each P2PSIP network all has unique domain name, and dns server is replied the domain name query requests according to the routing iinformation of storage.Concrete, when receiving the query requests of sip agent node, in query requests, carry the P2PSIP domain names, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address in the dns server, according to this corresponding relation, return the address of P2PSIP agent node to the sip agent node.
Concrete structure below in conjunction with SIP network and P2PSIP network illustrates the intercommunication process.
Fig. 6 is P2PSIP network in the system of the present invention.Comprise: node, P2PSIP agent node and P2PSIP session target node are initiated in the P2PSIP session.A plurality of nodes are arranged in the P2PSIP network, are that decentralization distributes.Node in arbitrary P2PSIP territory is facilitated the use the distributed hash tabulation and is inquired about by SIP URI unique identification.
Node is initiated in the P2PSIP session, initiates query requests to dns server, inquires about the sip agent address of node, and the sip agent node is issued in SIP INVITE request.
P2PSIP session target node receives SIP INVITE request, initiates the node intercommunication with the SIP session.
The P2PSIP agent node receives the SIP INVITE request of sip agent node, finds P2PSIP session target address of node by distributed hashtable, and transmits the SIPINVITE request to it.When the P2PSIP agent node adds or has agent node to withdraw from new node, dynamically update.
The agent node of P2PSIP network not only can be taken on by specialized server, can also take on by the good node of election performance.An ordinary node among the present invention is equivalent to a user in the reality.The present invention adopts dynamically election choosing on the P2PSIP agent node, and incidents such as the withdrawing from of agent node, new node adding, agent node inefficacy all may trigger new election.The election of P2PSIP agent node is based on the ability of node, as line duration, bandwidth, CPU, internal memory or the like.The P2PSIP agent node that election is come out has that autgmentability is strong, good reliability, low cost and the easy advantage of deployment.
Fig. 7 is SIP network in the system of the present invention.Comprise: node, sip agent node and SIP session target node are initiated in the SIP session.Traditional SIP network is the distribution of centralization, and the agent node of traditional SIP network is taken on by special sip server.
Node is initiated in the SIP session, sends SIP INVITE request to the sip agent node, the address of inquiry P2PSIP agent node.
SIP session target node receives SIP INVITE request, initiates the node intercommunication with the P2PSIP session.
The sip agent node receives the P2PSIP session and initiates the SIP INVITE request that node sends, and this request is transmitted to SIP session target node; Initiate query requests to dns server, the address that obtains the P2PSIP agent node, and SIP INVITE request is transmitted to the P2PSIP agent node.Tradition sip agent node is taken on by special sip server.
Traditional SIP network is the C/S framework, and key is that agent node can inquire the network address of node in this SIP network, can carry out routing forwarding.As the agent node of traditional SIP network, be that sip server is taken on normally by special server.
The P2PSIP network is the distribution of a decentralization, and each node all is reciprocity, and the P2PSIP network has agent node, therefore, node can be initiated query requests to dns server by self or agent node, to obtain targeted customer's relevant information, call request is arrived faster.Will transmit by agent node during node receipt of call in the P2PSIP network, and agent node both can have been taken on by the good user node of through performance, also can be taken on by special server.
Compare former method, the method of this client-server mode session initiation protocol and the intercommunication of self-organizing network Session initiation Protocol, P2PSIP user's initiation session can not passed through agent node, P2PSIP user can directly initiate query requests to DNS, this just makes the mode of initiation session that alternative arranged, the burden of agent node has also reduced, and flow process has also been simplified.Further, agent node can be selected a plurality ofly in the P2PSIP network, disperse to initiate or receive the burden that request causes, and dynamic election also makes the performance of agent node be guaranteed.Therefore, the invention solves intercommunication problem between P2PSIP network and traditional SIP network.Have more flexibility, have stronger adaptability.
Claims (10)
1. the method for SIP network and P2PSIP network interworking comprises the calling route flow process of the node initiation session in the P2PSIP network, and the calling route flow process of the node initiation session in the SIP network, wherein:
The calling route flow process of the node initiation session in the P2PSIP network may further comprise the steps:
The P2PSIP session is initiated node and is initiated query requests to dns server, inquires about the sip agent address of node, and the sip agent node is issued in SIP INVITE request;
The sip agent node receives the P2PSIP session and initiates the SIP INVITE request that node sends, and request is transmitted to SIP session target node;
SIP session target node receives SIP INVITE request, initiates the node intercommunication with the P2PSIP session;
The calling route flow process of the node initiation session in the SIP network may further comprise the steps:
The SIP session is initiated node and is sent SIP INVITE request to the sip agent node, the address of inquiry P2PSIP agent node;
The sip agent node is initiated query requests to dns server, obtains the address of P2PSIP agent node, and SIP INVITE request is transmitted to the P2PSIP agent node;
The P2PSIP agent node receives the SIP INVITE request of sip agent node, finds P2PSIP session target address of node by distributed hashtable, and transmits the SIPINVITE request to it;
P2PSIP session target node receives SIP INVITE request, initiates the node intercommunication with the SIP session.
2. according to the method for described SIP network of claim 1 and P2PSIP network interworking, wherein, the sip agent node is initiated query requests to dns server, obtains the address of P2PSIP agent node, may further comprise the steps:
The sip agent node is initiated query requests to dns server, carries the P2PSIP domain names in query requests;
In dns server, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address;
According to stored relation, dns server returns the address of P2PSIP agent node to the sip agent node.
3. according to the method for described SIP network of claim 2 and P2PSIP network interworking, wherein, in dns server, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address, may further comprise the steps:
Add at new node, when agent node withdraws from or agent node lost efficacy, dynamically update the P2PSIP agent node;
The P2PSIP agent node address after upgrading and the corresponding relation of P2PSIP domain names are saved in the dns server.
4. according to the method for described SIP network of claim 1 and P2PSIP network interworking, wherein, the P2PSIP session is initiated node, P2PSIP session target node and P2PSIP agent node all by SIP URI unique identification.
5. according to the method for described SIP network of claim 1 and P2PSIP network interworking, wherein, node is initiated operation from query requests to dns server is initiated in the P2PSIP session, further comprising the steps of: the P2PSIP session is initiated node and is initiated query requests by the P2PSIP agent node to dns server, and the P2PSIP agent node of this initiation query requests is not same agent node with the P2PSIP agent node of the SIP INVITE request that receives the sip agent node.
6. the system of SIP network and P2PSIP network interworking comprises SIP network, P2PSIP network and dns server, wherein:
Dns server, the information of storing all agent nodes comprises P2PSIP agent node and sip agent node; Receive the P2PSIP session and initiate the query requests of node, and return the sip agent address of node; Receive the query requests of sip agent node, and return the address of P2PSIP agent node;
The P2PSIP network comprises:
Node is initiated in the P2PSIP session, initiates query requests to dns server, inquires about the sip agent address of node, and the sip agent node is issued in SIP INVITE request;
P2PSIP session target node receives SIP INVITE request, initiates the node intercommunication with the SIP session;
The P2PSIP agent node receives the SIP INVITE request of sip agent node, finds P2PSIP session target address of node by distributed hashtable, and transmits the SIPINVITE request to it;
The SIP network comprises:
Node is initiated in the SIP session, sends SIP INVITE request to the sip agent node, the address of inquiry P2PSIP agent node;
SIP session target node receives SIP INVITE request, initiates the node intercommunication with the P2PSIP session;
The sip agent node receives the P2PSIP session and initiates the SIP INVITE request that node sends, and request is transmitted to SIP session target node; Initiate query requests to dns server, the address that obtains the P2PSIP agent node, and SIP INVITE request is transmitted to the P2PSIP agent node.
7. according to the system of described SIP network of claim 6 and P2PSIP network interworking, wherein, the P2PSIP network has unique domain name.
8. according to the system of described SIP network of claim 7 and P2PSIP network interworking, wherein, the P2PSIP session is initiated node, P2PSIP session target node and P2PSIP agent node all by SIP URI unique identification.
9. according to the system of described SIP network of claim 7 and P2PSIP network interworking, wherein, preserve the corresponding relation of P2PSIP domain names and P2PSIP agent node address in the dns server.
10. according to the system of described SIP network of claim 6 and P2PSIP network interworking, wherein, when the P2PSIP agent node adds at new node, agent node withdraws from or agent node lost efficacy, dynamically update.
Priority Applications (1)
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| CN102546712A (en) * | 2010-12-20 | 2012-07-04 | 中国移动通信集团公司 | Message transmission method, equipment and system based on distributed service network |
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| CN108737534A (en) * | 2018-05-11 | 2018-11-02 | 北京奇虎科技有限公司 | A kind of data transmission method, device, block catenary system based on block chain |
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