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ABSTRACT REPRESENTATION FOR CONTROL PLANES (ARC) Building ARC ============ Prerequisites ------------- - ant - Batfish (http://www.batfish.org): a git repository forked from the Batfish code repository is included as a submodule of this git repository; run `git submodule update --init` to clone the forked Batfish code repository into the `libs/batfish` directory - graphviz: only required for rendering graphs output by ARC - Gurobi (version 6.5 or newer): only required for equivalence testing; academic users can obtain a free single-user license - Java JDK (version 8 or newer) Compilation ----------- 1. Clone the ARC git repository git clone https://bitbucket.org/uw-madison-networking-research/arc.git 2. Obtain the Batifish source code cd arc git submodule update --init 3. (Optional) Copy or symlink the `gurobi.jar` file from the lib directory of your Gurobi installation to the `projects/arc/lib` directory 4. Compile cd projects/arc/ ant The compiled program is loated in the `target/` directory (within `projects/arc/`); all requisite libraries are copied into a `lib/` subdirectory within the `target/` directory. Using ARC ========= Prerequisites ------------- Create a directory containing a snapshot of the configurations from all routers in the network whose control plane you want to analyze. Example configurations for toy networks are included in the configs/examples directory. ARC currently only supports configurations from Cisco devices. Basic Usage ----------- Run ARC (from the `projects/arc/target` directory) using the following command: java -cp *:lib/* edu.wisc.cs.arc.Driver -configs <CONFIGS-DIR> `CONFIGS-DIR` is the path to a directory containing the configuration files for all devices in the network whose ARC should be generated/analyzed. To produce visual representations of the ETGs contained in an network's ARC, as well as the network's routing instances and (inferred) physical topology, include the `-graphs <GRAPH-DIR>` option. With this option, ARC will output graph files that be rendered using graphviz. You can use the following command to render all graphs produced by ARC: projects/arc/scripts/render_graphs.sh <GRAPH-DIR> To only render the base ETG (i.e., an ETG from which per-traffic-class ETGs are derived), instance graph, and physical topology graph, include the `-b` argument before the GRAPH-DIR when running the script. To verify a particular invariant, include the appropriate `-v` argument (e.g., `-vab` to verify always blocked) when running ARC. To run all verifiers, include the `-vall` argument. To see all options for ARC, use the `-help` argument: java -cp *:lib/* edu.wisc.cs.arc.Driver -help The `projects/arc/scripts/` directory contains a variety of scripts that can aid in running ARC over many networks and parsing ARC's output. Generating FAT Tree Topology ========= Basic Usage ----------- 1. Compile cd projects/fattree/ ant 2. Run FAT Tree generation code (from the `projects/fattree/target` directory) using the following command: java -cp *:lib/* CreateFATTreeTopology -help The `-help` argument shows all options for creating FAT Tree topology.