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fuzzXwuzz / Containerlab-multi-area-OSPF-configuration-Nokia-SRLinux

Containerlab multi-area OSPF configuration Nokia SRLinux
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Nokia SRLinux Containerlab Multi-Area OSPF Configuration on Windows 10 WSL2 Ubuntu-22.04

## System Information
- Windows version: 10.0.19045.4780
- WSL version: 2.2.4.0
- Ubuntu version: 22.04.4 LTS
- Containerlab version: 0.57.0
- Docker version: 27.2.0, build 3ab4256
- Docker Desktop version: 4.33.1 (161083)

Install WSL2 on Windows

  1. Enable Virtual Machine support in BIOS (SVM for AMD).

  2. Update Windows to the latest features and restart.

  3. Enable Windows features in Control Panel:

    • Windows Subsystem for Linux
    • Virtual Machine Platform
    • Restart your computer.

  4. Run PowerShell as Administrator and check WSL version:

    wsl -v

    Ensure it shows WSL logo on the Windows app start menu

  5. Update WSL:

    wsl --update

  6. Install Ubuntu 22.04 on PowerShell:

    wsl --list --online
wsl --install -d Ubuntu-22.04

    Enter your username and password.

  7. Verify WSL app logo appears in the start menu.

  8. Update and upgrade Ubuntu:

    sudo apt update && sudo apt full-upgrade -y

  9. Install Docker in WSL following Docker's official guide.

  10. Check Docker service status:

    sudo service docker status

    Test Docker

    sudo docker run hello-world

    Ensure it is 'ON'.

  11. Install Docker Desktop on Windows and integrate with WSL2 in settings > resources. Ensure Ubuntu-22.04 is checked.

  12. Verify Docker integration on PowerShell:

    wsl -l

    Ensure WSL, Ubuntu, and Docker Desktop are listed.

  13. Optionally switch iptables to legacy version:

    sudo update-alternatives --config iptables

    Choose option 1 for legacy.

  14. Install Containerlab:

    curl -sL https://containerlab.dev/setup | sudo bash -s "all"

    containerlab

Install Nokia SRLinux

  1. Pull the Nokia SRLinux Containerlab images: 
    sudo docker pull ghcr.io/nokia/srlinux
  2. Verify router images installed in Docker: 
    docker images

Topology Plan

=====================================================
|            > System Interface IP Address IPv4     |
|             #srl1 > 1.1.1.1/32                    |
|             #srl2 > 2.2.2.2/32                    |
|             #srl3 > 3.3.3.3/32                    |
|             #srl4 > 4.4.4.4/32                    |
|---------------------------------------------------|
|            > Link Interface IP Address IPv4       |
|             #srl1     RID 1.1.1.1                 |
|                 e1-1                              |
|                     area: 0.0.0.0                 |
|                     addr: 10.4.5.1/30             |
|                 e1-2                              |
|                     addr: 10.2.4.1/30             |
|             #srl2     RID 2.2.2.2                 |
|                 e1-1                              |
|                     area: 0.0.0.0                 |
|                     addr: 10.4.5.2/30             |
|             #srl3     RID 3.3.3.3                 |
|                 e1-1                              |
|                     area: 0.0.0.0                 |
|                     addr: 10.2.4.2/30             |
|                 e1-2                              |
|                     area: 0.0.0.1 stub            |
|                     addr: 10.6.5.1/30             |
|             #srl4     RID 4.4.4.4                 |
|                 e1-1                              |
|                     area: 0.0.0.1 stub            |
|                     addr: 10.6.5.2/30             |
=====================================================

Create Topology File

  1. Create a directory: 
    mkdir -p /home/user/srl02-lab

  2. Create the topology file:

    vi /home/user/srl02-lab/srl02-lab.yml
    name: srl02-lab

topology:
 nodes:
   srl1:
     kind: nokia_srlinux
     image: ghcr.io/nokia/srlinux
     startup-config: srl1.cfg
   srl2:
     kind: nokia_srlinux
     image: ghcr.io/nokia/srlinux
     startup-config: srl2.cfg
   srl3:
     kind: nokia_srlinux
     image: ghcr.io/nokia/srlinux
     startup-config: srl3.cfg
   srl4:
     kind: nokia_srlinux
     image: ghcr.io/nokia/srlinux
     startup-config: srl4.cfg
 links:
   - endpoints: ["srl1:e1-1", "srl2:e1-1"]
   - endpoints: ["srl1:e1-2", "srl3:e1-1"]
   - endpoints: ["srl3:e1-2", "srl4:e1-1"]

Create interface Configuration Files for Router Links

srl1.cfg

vi /home/user/srl02-lab/srl1.cfg
set / interface ethernet-1/1 admin-state enable
set / interface ethernet-1/1 subinterface 0
set / interface ethernet-1/1 subinterface 0 ipv4
set / interface ethernet-1/1 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/1 subinterface 0 ipv4 address 10.4.5.1/30

set / network-instance default
set / network-instance default interface ethernet-1/1.0

set / interface ethernet-1/2 admin-state enable
set / interface ethernet-1/2 subinterface 0
set / interface ethernet-1/2 subinterface 0 ipv4
set / interface ethernet-1/2 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/2 subinterface 0 ipv4 address 10.2.4.1/30

set / network-instance default
set / network-instance default interface ethernet-1/2.0

srl2.cfg

vi /home/user/srl02-lab/srl2.cfg
set / interface ethernet-1/1 admin-state enable
set / interface ethernet-1/1 subinterface 0
set / interface ethernet-1/1 subinterface 0 ipv4
set / interface ethernet-1/1 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/1 subinterface 0 ipv4 address 10.4.5.2/30

set / network-instance default
set / network-instance default interface ethernet-1/1.0

srl3.cfg

vi /home/user/srl02-lab/srl3.cfg
set / interface ethernet-1/1 admin-state enable
set / interface ethernet-1/1 subinterface 0
set / interface ethernet-1/1 subinterface 0 ipv4
set / interface ethernet-1/1 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/1 subinterface 0 ipv4 address 10.2.4.2/30

set / network-instance default
set / network-instance default interface ethernet-1/1.0

set / interface ethernet-1/2 admin-state enable
set / interface ethernet-1/2 subinterface 0
set / interface ethernet-1/2 subinterface 0 ipv4
set / interface ethernet-1/2 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/2 subinterface 0 ipv4 address 10.6.5.1/30

set / network-instance default
set / network-instance default interface ethernet-1/2.0

srl4.cfg

vi /home/user/srl02-lab/srl4.cfg
set / interface ethernet-1/1 admin-state enable
set / interface ethernet-1/1 subinterface 0
set / interface ethernet-1/1 subinterface 0 ipv4
set / interface ethernet-1/1 subinterface 0 ipv4 admin-state enable
set / interface ethernet-1/1 subinterface 0 ipv4 address 10.6.5.2/30

set / network-instance default
set / network-instance default interface ethernet-1/1.0

Deploy the Topology

sudo containerlab deploy -t /home/user/srl02-lab/srl02-lab.yml

output shown as below:

+---+---------------------+--------------+-----------------------+---------------+---------+----------------+----------------------+
| # |        Name         | Container ID |         Image         |     Kind      |  State  |  IPv4 Address  |     IPv6 Address     |
+---+---------------------+--------------+-----------------------+---------------+---------+----------------+----------------------+
| 1 | clab-srl02-lab-srl1 | 483460df06ff | ghcr.io/nokia/srlinux | nokia_srlinux | running | 172.20.20.5/24 | 2001:172:20:20::5/64 |
| 2 | clab-srl02-lab-srl2 | 2db6a02b4ea6 | ghcr.io/nokia/srlinux | nokia_srlinux | running | 172.20.20.3/24 | 2001:172:20:20::3/64 |
| 3 | clab-srl02-lab-srl3 | c1925aaf2aaa | ghcr.io/nokia/srlinux | nokia_srlinux | running | 172.20.20.2/24 | 2001:172:20:20::2/64 |
| 4 | clab-srl02-lab-srl4 | 92c176ef43ec | ghcr.io/nokia/srlinux | nokia_srlinux | running | 172.20.20.4/24 | 2001:172:20:20::4/64 |
+---+---------------------+--------------+-----------------------+---------------+---------+----------------+----------------------+

graph topo

Check SRLinux Router Images Status on Docker

docker ps -a

Generate Topology Graph

sudo containerlab graph --topo /home/user/srl02-lab/srl02-lab.yml

Access the graph in your browser at:

http://0.0.0.0:50080

The address of containerlab is eth0 on Ubuntu. To find it:

ifconfig

Look for eth0.

SSH Remote Access to the Router

ssh admin@172.20.20.0

or

containerlab -t exec clab-srl02-lab-srl1 sr_cli

The default password is NokiaSrl1!.

Configure SRLinux Routers

srl1 Configuration

Show Nokia SRLinux router Version

A:srl1# show version
----------------------------------------------------------------------------------------------
Hostname             : srl1
Chassis Type         : 7220 IXR-D2L
Part Number          : Sim Part No.
Serial Number        : Sim Serial No.
System HW MAC Address: 1A:94:00:FF:00:00
OS                   : SR Linux
Software Version     : v24.7.1
Build Number         : 330-g38f237abfe
Architecture         : x86_64
Last Booted          : 2024-08-30T06:16:14.005Z
Total Memory         : 7906339 kB
Free Memory          : 495281 kB
-----------------------------------------------------------------------------------------------

Assign Interface Ethernet and System to Network-Instance

A:srl1# enter candidate
A:srl1# set interface ethernet-1/1 admin-state enable subinterface 0 admin-state enable ipv4 address 10.4.5.1/30
A:srl1# set interface ethernet-1/2 admin-state enable subinterface 0 admin-state enable ipv4 address 10.2.4.1/30
A:srl1# set admin-state enable interface system0.0
A:srl1# info
admin-state enable
interface ethernet-1/1.0 {
}
interface ethernet-1/2.0 {
}
interface system0.0 {
}

Check Interface Operational Status

A:srl1# show interface ethernet-1/1 all
A:srl1# show interface ethernet-1/1 brief
A:srl1# show interface ethernet-1/1 detail

if the interfaces operational is up you could test ping to each peer. and then you could continue configuring OSPF

if you found lower-layer down interface status, check up on your yaml file configuration. (optionally you could destroy the lab and re-deploy)

Configure OSPF

A:srl1# set / network-instance default protocols ospf instance default version ospf-v2 instance-id 0 admin-state enable router-id 1.1.1.1 area 0.0.0.0 advertise-router-capability true interface ethernet-1/1.0 admin-state enable interface-type point-to-point
A:srl1# set / network-instance default protocols ospf instance default area 0.0.0.0 advertise-router-capability true interface ethernet-1/2.0 admin-state enable interface-type point-to-point
A:srl1# info
interface ethernet-1/1.0 {
}
interface ethernet-1/2.0 {
}
protocols {
    ospf {
        instance default {
            admin-state enable
            version ospf-v2
            address-family ipv4-unicast
            instance-id 0
            router-id 1.1.1.1
            area 0.0.0.0 {
                advertise-router-capability true
                interface ethernet-1/1.0 {
                    admin-state enable
                }
                interface ethernet-1/2.0 {
                    admin-state enable
                }
            }
        }
    }
}

srl2 Configuration

Same configuration format as srl1. Ensure Configuration Output

A:srl2# info
admin-state enable
version ospf-v2
instance-id 0
router-id 2.2.2.2
area 0.0.0.0 {
    advertise-router-capability true
    interface ethernet-1/1.0 {
        admin-state enable
        interface-type point-to-point
    }
}

srl3 Configuration

Creating Configuration for srl3 with Area 0 on eth1 and Area 1 Stub on eth2

set network-instance default protocols ospf instance default admin-state enable version ospf-v2 instance-id 0 area 0.0.0.0 router-id 3.3.3.3 advertise-router-capability true interface ethernet-1/1.0 admin-state enable interface-type point-to-point

set network-instance default protocols ospf instance default area 0.0.0.1 advertise-router-capability true interface ethernet-1/2.0 admin-state enable interface-type point-to-point

A:srl3# instance default area 0.0.0.1
A:srl3# set stub

Verification

--{ running }--[ network-instance default protocols ]--
A:srl3# info
    ospf {
        instance default {
            admin-state enable
            version ospf-v2
            instance-id 0
            router-id 3.3.3.3
            area 0.0.0.0 {
                advertise-router-capability true
                interface ethernet-1/1.0 {
                    admin-state enable
                    interface-type point-to-point
                }
            }
            area 0.0.0.1 {
                advertise-router-capability true
                stub {
                }
                interface ethernet-1/2.0 {
                    admin-state enable
                    interface-type point-to-point
                }
            }
        }
    }

srl4 Configuration

Setting srl4 with Stub area

A:srl4# set protocols ospf instance default admin-state enable version ospf-v2 instance-id 0 router-id 4.4.4.4 area 0.0.0.1 advertise-router-capability true interface ethernet-1/1.0 admin-state enable interface-type point-to-point

A:srl4# protocols ospf instance default area 0.0.0.1
A:srl4# set stub

Verification

--{ + candidate shared default }--[ network-instance default protocols ]--
A:srl4# info
    ospf {
        instance default {
            admin-state enable
            version ospf-v2
            instance-id 0
            router-id 4.4.4.4
            area 0.0.0.1 {
                advertise-router-capability true
                stub {
                }
                interface ethernet-1/1.0 {
                    admin-state enable
                    interface-type point-to-point
                }
            }
        }
    }

Test Commands

ping
show network-instance default protocols ospf status
show network-instance default protocols ospf database
show network-instance default protocols ospf neighbor detail
show network-instance default route-table all
show network-instance default protocols ospf area 0.0.0.0 detail
show network-instance default protocols ospf interface detail

ping srl1 to srl4 result

ping srl1 to srl4

ospf database srl1

ospf database srl1

srl4 stub lsa database

srl4 stub lsa database

srl1 route-table

srl1 route-table

Saving and Manage the Lab

containerlab save -t srl02-lab.yml

# Close the lab with 'CTRL + D'

# re-Start the lab by starting Docker container
docker ps -a
docker container start CONTAINER_ID

# If you find trouble with container status, destroy
containerlab destroy -t srl02-lab.yml

# You can start over by re-deploying. The config is saved inside the file in the directory