Cooperative caching method in intelligence cooperative network
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A smart collaborative network and collaborative caching technology, applied in the Internet field, can solve problems such as lack of cooperative caching mechanism
Inactive Publication Date: 2015-04-29
BEIJING JIAOTONG UNIV
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[0006] At present, in the smart collaborative network, ther
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Embodiment 1
[0068] An example of this mechanism is attached Figure 7 As shown in , the user Cilent sends a service request message to the network to request a file stored on the server Server, and the service identifier of the file is SID 1 . The topology contains two autonomous domains D 1 and D 2 , each autonomous domain contains a resource manager, respectively RM 1 and RM 2 . where RM 1 Requires that a cached copy of each packet be kept within the domain, RM 2 It is required that no packets are cached within the domain. In this scenario, the specific communication process of this mechanism is as follows:
[0069] Step 1, Client sends RM 1 Send a service request message, requesting service identifier as SID 1 document;
[0070] Step 2, RM 1 After receiving the service request, check whether there is an entry corresponding to the service ID in the cache summary table;
[0071] Step 3, there is no corresponding entry in the cache summary table, RM 1 Query the entry corresp...
Embodiment 2
[0079] attached Figure 8 To show another embodiment under this mechanism, the user Cilent sends a pair of SID to the network 1 service request message, and the document has been domain D 1 The content router R n cache. In this scenario, the specific communication process of this mechanism is as follows:
[0080] Step 1, Client sends RM 1 Send a service request message, requesting service identifier as SID 1 document;
[0081] Step 2, RM 1 After receiving the service request, check whether there is an entry corresponding to the service ID in the cache summary table;
[0082] Step 3, there is a corresponding entry in the cache summary table, RM 1 Replace the destination address in the service request packet with R n , and increment the number of cache hits in the entry by 1, and send this message to R n ;
[0083] Step 4, R n After receiving the service request, send the service packet directly to the user;
[0084] Step 5, the user receives the service data packet...
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Abstract
The invention relates to a method for realizing cooperative caching in an intelligence cooperative network. The method comprises the steps of arranging a resource manager in a network, determining contents to be at a caching position in the network, maintaining a caching abstract table, and recording caching resources of a router of the network; when the resource manager receives a service request packet sent by a content requester, searching a corresponding table item from the caching abstract table; if the table item is found, directly sending a service request to a content router recorded by the table item; if no table item is found, inquiring a service registering table, and forwarding the service request to the resource manager of the adjacent network; when the resource manager receives a service data packet, caching the service data packet at the selected content router according to a content arrangement algorithm. According to the method disclosed by the invention, dynamic adaptation of the cached resources can be realized, and a hit request is routed to the content router of the service content through the resource manager, so that intra-domain caching cooperation can be realized, caching redundancy can be reduced, and the caching performance can be improved.
Description
technical field [0001] The invention relates to a method for realizing collaborative caching in a smart collaborative network, and belongs to the technical field of the Internet. Background technique [0002] Smart collaborative network is a new next-generation Internet network architecture. The intelligent collaborative network dynamically perceives the network status and intelligently matches service requirements, and then selects reasonable network groups and their internal components to provide intelligent services, and realizes this by introducing mechanisms such as behavior matching, behavior clustering, and network complex behavior game decision-making. The dynamic adaptation and collaborative scheduling of resources can greatly improve the utilization rate of network resources, reduce network energy consumption, and significantly improve user experience. [0003] The "three-layer" and "two-domain" general architecture model of the intelligent collaborative network, ...
Claims
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