Method and device for abstracting logic topology information of peertopeer technological network
Method and device for abstracting logic topology information of peertopeer technological network
 CN 101,895,482 A
 Filed: 05/18/2009
 Published: 11/24/2010
 Est. Priority Date: 05/18/2009
 Status: Active Application
First Claim
1. the logic topology information to pointtopoint technology P2P network carries out abstract method, it is characterized in that, comprising:
 Obtain the set that the Rendezvous Point POP of the peer client in the P2P network is ordered;
Calculate the optimal path between any two the POP points in the set that described POP orders and the weighted value of optimal path;
Collect the optimal path that obtains on each the POP point in the set that described Rendezvous Point POP orders and the result of calculation of weighted value, obtain the set of the abstract logical topology record of described P2P network.
Chinese PRB Reexamination
Abstract
The embodiment of the invention provides a method and a device for abstracting the logic topology information of a P2P (PeerToPeer) network. The method mainly comprises the following steps of: obtaining the set of POPs (Point Of Presence) of a peertopeer client end in the P2P network, computing an optimal path and the weighted value of the optimal path between any two POPs in the set of the POPs by utilizing the related algorithm of a routing protocol in the P2P network, and synthesizing the computed results of the optimal path and the weighted value obtained on each POP to obtain the set of the abstracted logic topology records of the P2P network. The embodiment of the invention provides a common and effective abstracting method of the logic topology information, the network topology information needing to be transmitted is greatly reduced, and the danger of topology information exposure of a bottomlayer network is reduced, so that the network topology information is safely and concisely transferred to a P2P application server.

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No References
10 Claims

1. the logic topology information to pointtopoint technology P2P network carries out abstract method, it is characterized in that, comprising:

Obtain the set that the Rendezvous Point POP of the peer client in the P2P network is ordered; Calculate the optimal path between any two the POP points in the set that described POP orders and the weighted value of optimal path; Collect the optimal path that obtains on each the POP point in the set that described Rendezvous Point POP orders and the result of calculation of weighted value, obtain the set of the abstract logical topology record of described P2P network.


2. the logic topology information to the P2P network according to claim 1 carries out abstract method, it is characterized in that, the set that the described Rendezvous Point POP that obtains the peer client in the P2P network is ordered comprises:
Visit management information bank in the described P2P network by Simple Network Management Protocol, obtain POP point Role Information the described P2P network from described management information bank;
Perhaps, obtain POP point Role Information in the described P2P network based on the static configuration situation of described P2P network.

3. the logic topology information to the P2P network according to claim 2 carries out abstract method, it is characterized in that, optimal path and weighted value between any two the POP points in the set that the described POP of described calculating is ordered, collect the optimal path that obtains on each the POP point in the set that described Rendezvous Point POP orders and the result of calculation of weighted value, obtain the set of the abstract logical topology record of described P2P network, comprising:

According to the POP point Role Information in the described P2P network, utilize the related algorithm of Routing Protocol, calculate any two the source POP points in the set that described POP orders and the weighted value of the optimal path between purpose POP point and this optimal path, obtain abstract logical topology record between described source POP point and purpose POP point according to described optimal path and corresponding weighted value record; Abstract logical topology record in the set that described POP is ordered between the every pair of POP point carries out comprehensive, obtains the set of the abstract logical topology record of described P2P network.


4. the logic topology information to the P2P network according to claim 3 carries out abstract method, it is characterized in that the weighted value of described optimal path comprises:
 the summation of all link weighted values on the optimal path.

5. the logic topology information to the P2P network according to claim 3 carries out abstract method, it is characterized in that:
When there is mulitpath of equal value in the optimal path between described source POP point and purpose POP point, select wherein a paths as optimal path.

6. the logic topology information to the P2P network according to claim 3 carries out abstract method, it is characterized in that, comprises in the abstract logical topology record between described source POP point and purpose POP point:

Described source POP point, described purpose POP point, and the weighted value of the optimal path between described source POP point and purpose POP point; Perhaps, All POP points of process on the optimal path between described source POP point and described purpose POP point, and the weighted value of described optimal path.


7. the logic topology information to the P2P network according to claim 2 carries out abstract method, it is characterized in that, described method also comprises:
 utilize the Routing Protocol in each autonomous system domains in the P2P network, collect the relevant information of P2P network of network topology, perhaps, management information bank by in the Simple Network Management Protocol visit P2P network obtains the relevant information of P2P network of network topology from this management information bank;
The optimal path between any two the POP points in the set that the described POP of described calculating is ordered and the weighted value of optimal path comprise; According to the POP point Role Information information relevant in the described P2P network with described network topology, utilize the related algorithm of Routing Protocol, calculate any two the source POP points in the set that described POP orders and the weighted value of the optimal path between purpose POP point and this optimal path.
 utilize the Routing Protocol in each autonomous system domains in the P2P network, collect the relevant information of P2P network of network topology, perhaps, management information bank by in the Simple Network Management Protocol visit P2P network obtains the relevant information of P2P network of network topology from this management information bank;

8. the logic topology information to pointtopoint technology P2P network carries out abstract device, it is characterized in that, comprising:

The set acquisition module that POP is ordered is used for obtaining the set that the Rendezvous Point POP of the peer client of P2P network is ordered; The optimal path computation module is used for calculating the optimal path between any two POP points of the set that described POP orders and the weighted value of optimal path; Logical topology set of records ends acquisition module is used for collecting the optimal path that obtains on each POP point of the set that described Rendezvous Point POP orders and the result of calculation of weighted value, obtains the set of the abstract logical topology record of described P2P network.


9. the logic topology information to pointtopoint technology P2P network according to claim 8 carries out abstract device, it is characterized in that, described optimal path computation module comprises:

The computing module is used for the POP point Role Information according to the P2P network, utilizes the related algorithm of Routing Protocol, calculates any two the source POP points in the set that described POP orders and the weighted value of the optimal path between purpose POP point and this optimal path; Logical topology record acquisition module is used for obtaining abstract logical topology record between described source POP point and purpose POP point according to described optimal path and corresponding weighted value, and this logical topology is write down store.


10. the logic topology information to pointtopoint technology P2P network according to claim 8 carries out abstract device, it is characterized in that described device also comprises:

The network topological information acquisition module, be used for utilizing the interior Routing Protocol of each autonomous system domains of P2P network, collect the relevant information of P2P network of network topology, perhaps, management information bank by in the Simple Network Management Protocol visit P2P network obtains the relevant information of P2P network of network topology from this management information bank; Described optimal path computation module, also be used for the POP point Role Information information relevant with described network topology according to the P2P network, utilize the related algorithm of Routing Protocol, calculate any two the source POP points in the set that described POP orders and the weighted value of the optimal path between purpose POP point and this optimal path.

Specification(s)