Progress Report
نویسنده
چکیده
The goals for the first quarter in the timeline defined in the proposal were to run experiments on ESnet and ANI testbed to capture control-connection packets for file transfer applications, and to design new online flow detection algorithms. Both these activities were planned for the first proposed work item, which is to design new online flow detection algorithms because the Hybrid Network Traffic Engineering System (HNTES) developed in the first project used offline mechanisms. Three approaches were identified in the proposal for online schemes, port mirroring, payload based scheme and NetFlow analysis scheme. The first work item to capture control-connection packets for file transfer applications was intended to study the feasibility of the payload based scheme. Our findings are that control messages in GridFTP are encrypted and therefore, at least for GridFTP, such a payload based scheme for online detection is not feasible. Toward the second work item, hybrid offline-online algorithms have been designed, and two new offline algorithms are under development. Further details are provided below.
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