nokia-basic-dci-lab

A basic Datacenter Interconnect (DCI) lab for with leaf/spine switches powered by SR Linux and DC Gateway and P routers powered by Nokia 7750 SR OS.

In this lab, you will see two DC fabrics with VXLAN/EVPN and a WAN network that interconnects them with BGP-VPN.

There are clients connected to Leaf routers(see the topology below) in every site to test the connectivity in the fabric as well as inter-dc.

Images & License

This lab requires containerized images of both SR Linux and SROS and a valid vSIM license for SROS. SR Linux container image is automatically pulled from the public repository upon deploying the lab. (See the topology file) SROS container image is available via a Nokia private repository, but can also be derived from an vSIM VM image via VRNETLAB.

Topology

Deploy on containerlab

From within the cloned directory run:

sudo clab deploy -c

Deploy on c9s

Install clabernetes

helm upgrade --install --create-namespace --namespace c9s \
    clabernetes oci://ghcr.io/srl-labs/clabernetes/clabernetes

Setup clabverter

alias clabverter='sudo docker run --user $(id -u) \
    -v /opt/nokia:/opt/nokia \
    -v $(pwd):/clabernetes/work --rm \
    ghcr.io/srl-labs/clabernetes/clabverter:latest'

Run clabverter

clabverter --stdout --naming non-prefixed --disableExpose \
| kubectl apply -f -

Client connectivity validation

The netcheck.sh script will run ping from client1 in DC1 to other clients. That will validate connectivity within and between the dc fabrics.

With containerlab

./netcheck.sh

With c9s

Automated ping tests from client1 towards client2, client3 and client4 can be done with:

./netcheck-c9s.sh

The output will show the success or failure of the ping tests for each destination.

To run the ping tests manually, use the following command:

kubectl exec -it -n c9s-dci <pod-name-for-client1> -- docker exec -it client1-dc1 ping 10.0.0.4

Cleanup

Containerlab

sudo clab destroy -c

c9s

kubectl delete namespace c9s-dci

If you wish to also uninstall the clabernetes:

helm uninstall -n c9s clabernetes && \
kubectl delete namespace c9s

Misc

Traffic capture with wireshark

pcapc9s.sh <host-with-kubectl> c9s-dci client4 eth1

Replace underscores in names

sed -ir 's/([a-zA-Z0-9]+)_dc/\1-dc/g' dci.clab.yml