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- [*FRRouting*](https://frrouting.org/) is a free and open source Internet routing protocol suite for Linux and Unix platforms. It implements BGP, OSPF, RIP, IS-IS, PIM, LDP, BFD, Babel, PBR, OpenFabric and VRRP, with alpha support for EIGRP and NHRP. Router nodes in *P4-Utils* are based on *FRRouting*. It is not required for topologies without routers.
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- [*P4-Utils*](https://github.com/nsg-ethz/p4-utils) is an extension to *Mininet* that supports P4 devices. It was strongly inspired by the original [*p4app*](https://github.com/p4lang/p4app) from the [p4lang](https://github.com/p4lang) repository.
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Since the installation process can be a bit tedious and cumbersome, we provide you with a [virtual machine](#virtual-machine-vm) with all the required components already installed.
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> **Important**
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> Some exercises or examples will only work (due to bug fixes) if you use the same version of BMv2 and P4C that we provide. See the following [installation](https://github.com/nsg-ethz/p4-learning/blob/junota/vm/bin/install-p4-tools.sh) script and use the same `commits`.
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## Virtual Machine (VM)
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If you build the VM from the vagrant script we provide or directly download the OVA package you will have *P4-Utils* already installed, however if you already have the required software and use your own machine/VM you can manally install it:
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> Some exercises or examples will only work (due to bug fixes) if you use the same version of BMv2 and P4C that we provide. Take a look at this [installation script](https://github.com/nsg-ethz/p4-learning/blob/junota/vm/bin/install-p4-tools.sh) and make sure you use the same `commits`.
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```bash
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git clone https://github.com/nsg-ethz/p4-utils.git
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cd p4-utils
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sudo ./install.sh
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```
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To update you just simply run:
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```bash
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cd /home/p4/p4-tools/p4-utils
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git pull
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``` |
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**Since the installation process can be a bit tedious and cumbersome, please check out the [*P4-Utils* installation guide](https://nsg-ethz.github.io/p4-utils/installation.html)**. Indeed, since *P4-Learning* is simply a compilation of examples and exercises for *P4-Utils*, their software requirements are the same. You can choose among different ways of installing the *P4-Tools* suite (including *P4-Learning* and *P4-Utils*). |
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