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Lab02

Last edited by Katharina Renk

UNDER CONSTRUCTION!

In this lab, we will set up a simple topology with containerlab and configure two cEOS switches that we manage with the goSDN controller.

Please note: You need to have the lab-vm or all the software in Prerequisites installed to run this lab.

The figure below shows what we want to set up using the goSDN-Controller, goSDN-CLI and gnmi:

lab01-network.drawio

Run the containerlab

Go to the directory of gosdn and use following command:

make containerlab-start

Download the folder below and place it into the artifacts folder of your gosdn folder

lab01.zip Or get it with wget:

wget https://code.fbi.h-da.de/danet/gosdn/-/wikis/uploads/e7bbf3f0575a4e471c8ba8862c0b2dde/lab01.zip

Open a new terminal and start the CLI to talk to the controller (Do not close the previous terminal)

Build command prompt

make build
cd artifacts
./gosdnc prompt

CLI_image

Login into the controller with the credentials

login –controller 172.100.0.5:55055 --u admin --p (password)

To get the (password) go to the previous terminal and use the following commands

docker logs clab-gosdn_csbi_arista_base-gosdn

In the end of the script a 16 character alphanumeric password is generated like this: “Generated admin password: uyslboh15gjp9dne” (not the actual password, just an example) login_password

Set up the PND ID

pnd use (Choose ID from the displayed menu)

PND_id_display PND_success

Set-Up the devices/switches

mne create --address 172.100.0.11:6030 --name switch1 --username admin --password admin --type plugin
mne create --address 172.100.0.12:6030 --name switch2 --username admin --password admin --type plugin

Check for the devices

mne list

Configuration of the switches(the UUID have to be changed according to the output from the devices)

Switch 1

mne set 401982c5-fb98-4402-b98f-1b6d30915fc4 network-instances/network-instance[name=default]/config --file ./lab01/enable-routing.json   --force-push
mne set 401982c5-fb98-4402-b98f-1b6d30915fc4 interfaces/interface[name=Ethernet1] --file ./lab01/s01-ethernet01.json  --force-push
mne set 401982c5-fb98-4402-b98f-1b6d30915fc4 interfaces/interface[name=Ethernet2] --file ./lab01/s01-ethernet02.json  --force-push
mne set 401982c5-fb98-4402-b98f-1b6d30915fc4 network-instances/network-instance[name=default]/protocols --file ./lab01/s01-route.json --force-push
mne set 401982c5-fb98-4402-b98f-1b6d30915fc4 network-instances/network-instance[name=default]/tables --file ./lab01/tables.json --force-push

Switch 2

mne set c724b95b-c751-4728-9f19-376e0d570104 network-instances/network-instance[name=default]/config --file ./lab01/enable-routing.json   --force-push
mne set c724b95b-c751-4728-9f19-376e0d570104 interfaces/interface[name=Ethernet1] --file ./lab01/s02-ethernet01.json  --force-push
mne set c724b95b-c751-4728-9f19-376e0d570104 interfaces/interface[name=Ethernet2] --file ./lab01/s02-ethernet02.json  --force-push
mne set c724b95b-c751-4728-9f19-376e0d570104 network-instances/network-instance[name=default]/protocols --file ./lab01/s02-route.json --force-push
mne set c724b95b-c751-4728-9f19-376e0d570104 network-instances/network-instance[name=default]/tables --file ./lab01/tables.json --force-push

If you've cloned the goSDN repo from here and have all the requirements, then you can start the containerlab topology (which is defined below) using the command make containerlab-start from within the root of the repository

CLI and the controller

Setup centos devices

Since we do not have access via gNMI on those devices, we have to perform some steps manually, within the container itself.

First we have to get into the centos device via docker exec -it clab-gosdn_csbi_arista_base-centos1 bash and run the following commands:

[root@centos1 /]# ip address add 10.0.0.100/24 dev eth1
[root@centos1 /]# ip route del default
[root@centos1 /]# ip route add default via 10.0.0.1 dev eth1
[root@centos1 /]# exit

docker exec -it clab-gosdn_csbi_arista_base-centos2 bash

[root@centos2 /]# ip address add 192.168.0.100/24 dev eth1                                                           
[root@centos2 /]# ip route del default                                                                               
[root@centos2 /]# ip route add default via 192.168.0.1 dev eth1                                                      
[root@centos2 /]# exit

Testing our setup

Ping the centos devices with the ip's

docker exec -ti clab-gosdn_csbi_arista_base-centos1 ping 192.168.0.1
docker exec -ti clab-gosdn_csbi_arista_base-centos2 ping 10.0.0.1

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