GoBGP Practical Activity

Task description

You have the following topology:

GoBGP is installed and peering is configured. Configure BGP policies to ensure that link "A" has higher preference than link "B" and traffic between rt1 and rt3 passed through rt2 router.

1. Setup Vagrant

Download from https://www.vagrantup.com/downloads.html and install

2. Pull repository

git clone https://github.com/ivanlysogor/hse-gobgp-bgp

3. Setup environment

cd hse-gobgp-bgp
vagrant up

4. Configure virtual routers

Configure virtual routers:

• configure BGP policies to change route priorities

Hints:

• you can connect to you virtual routers with command vagrant ssh rt1
• GoBGP configuration documentation: https://github.com/osrg/gobgp
• GoBGP config file located in /etc folder (/etc/gobgpd.conf)
• GoBGP policy configuration - https://github.com/osrg/gobgp/blob/master/docs/sources/policy.md
• Zebra interface accessible via telnet localhost 2601 with password zebra and enable zebra

5. Validate

Traceroute rt3 eth3 interface IP address from rt1 eth1 interface to ensure that traffic pass through rt1/rt2 eth4 interfaces.

Test it for opposite direction traffic too.

5. Destroy VM

vagrant destroy