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diff --git a/docs/source/vTC/README.rst b/docs/source/vTC/README.rst deleted file mode 100644 index 018573541..000000000 --- a/docs/source/vTC/README.rst +++ /dev/null @@ -1,96 +0,0 @@ -========= -Yardstick -========= - -Overview of the virtual Traffic Classifier -======== -The virtual Traffic Classifier VNF [1], comprises in the current version of -1 VNFC [2]. The VNFC contains both the Traffic Inspection module, and the -Traffic forwarding module, needed to run the VNF. The exploitation of DPI -methods for traffic classification is built around two basic assumptions: -(i) third parties unaffiliated with either source or recipient are able to -inspect each IP packet’s payload and -(ii) the classifier knows the relevant syntax of each application’s packet -payloads (protocol signatures, data patterns, etc.). -The proposed DPI based approach will only use an indicative, small number of the -initial packets from each flow in order to identify the content and not inspect -each packet. -In this respect it follows the Packet Based per Flow State (PBFS). -This method uses a table to track each session based on the 5-tuples -(src address,dest address,src port,dest port,transport protocol) -that is maintained for each flow. - -Concepts -======== -Traffic Inspection: The process of packet analysis and application -identification of network traffic that passes through the vTC. - -Traffic Forwarding: The process of packet forwarding from an incoming -network interface to a pre-defined outgoing network interface. - -Traffic Rule Application: The process of packet tagging, based on a -predefined set of rules. Packet tagging may include e.g. ToS field modification. - -Architecture -============ - -The Traffic Inspection module is the most computationally intensive component -of the VNF. It implements filtering and packet matching algorithms in order to -support the enhanced traffic forwarding capability of the VNF. The component -supports a flow table (exploiting hashing algorithms for fast indexing of flows) -and an inspection engine for traffic classification. The implementation used for -these experiments exploits the nDPI library. The packet capturing mechanism is -implemented using libpcap. When the DPI engine identifies a new flow, the flow -register is updated with the appropriate information and transmitted across the -Traffic Forwarding module, which then applies any required policy updates. -The Traffic Forwarding moudle is responsible for routing and packet forwarding. -It accepts incoming network traffic, consults the flow table for classification -information for each incoming flow and then applies pre-defined policies marking -e.g. type of Service/Differentiated Services Code Point (TOS/DSCP) multimedia -traffic for QoS enablement on the forwarded traffic. It is assumed that the -traffic is forwarded using the default policy until it is identified and new -policies are enforced. The expected response delay is considered to be -negligible,as only a small number of packets are required to identify each flow. - -Graphical Overview -================== - -+----------------------------+ -| | -| Virtual Traffic Classifier | -| | -| Analysing/Forwarding | -| +--------> | -| ethA ethB | -+------+--------------+------+ - | ^ - | | - | | - | | - v | -+------+--------------+------+ -| | -| Virtual Switch | -| | -+----------------------------+ - - -Install -======= - -run the build.sh with root privileges - -Run -=== - -sudo ./pfbridge -a eth1 -b eth2 - -Custom Image -============ - -TBD - -Development Environment -======================= - -Ubuntu 14.04 >= VM |