Setting up Cisco TRex

 

Objectives

By the end of this guide, you will be able to

• download and install TRex
• configure TRex 

 

What is TRex?

It is an open source traffic generator that works on DPDK-based processors and that supports both stateless and stateful modes.

Step 1: Download the latest stable version from the following link

https://trex-tgn.cisco.com/trex/release/latest

Step 2: Extract downloaded folder to /opt/trex and navigate to it

mkdir -p /opt/trex

sudo tar -xvf latest.tar --directory=/opt/trex/

cd /opt/trex/v2.98

 

Replace 2.98 with the corresponding version you downloaded.

Step 3: Creating the configuration file trex_cfg.yaml

The configuration file can be created in two ways:

i)  Manually

 

Firstly run the following script to see the available network devices. 

sudo ./dpdk_setup_ports.py -s   

 

The package comes with a basic configuration file template.

Copy it the /etc/ folder and rename it to trex_cfg.yaml

sudo cp cfg/simple_cfg.yaml /etc/trex_cfg.yaml

 

Edit the configuration file to add the relevant information about the interface and IP address.

sudo nano /etc/trex_cfg.yaml

 

 

ii)  Through script

 

Simply run the following script and follow the instructions.

sudo ./dpdk_setup_ports.py -i