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IPInfusion OcNOS#

IPInfusion OcNOS virtualized router is identified with ipinfusion_ocnos kind in the topology file. It is built using either boxen project or hellt/vrnetlab and essentially is a Qemu VM packaged in a docker container format.

ipinfusion_ocnos nodes launched with containerlab come up pre-provisioned with SSH, and NETCONF services enabled.


OcNOS VM disk images need to be altered to support telnet serial access and ethX interfaces name style. This can be done by modifying the grub config file, as shown here.

Managing ipinfusion_ocnos nodes#


Containers with OcNOS inside will take ~3min to fully boot.
You can monitor the progress with docker logs -f <container-name> and docker exec -it <container-name> tail -f /console.log.

IPInfusion OcNOS node launched with containerlab can be managed via the following interfaces:

to connect to a bash shell of a running ipinfusion_ocnos container:

docker exec -it <container-name/id> bash

to connect to the OcNOS CLI

ssh ocnos@<container-name/id>

NETCONF server is running over port 830

ssh ocnos@<container-name> -p 830 -s netconf


Default user credentials: ocnos:ocnos

Interfaces mapping#

ipinfusion_ocnos container can have up to 144 interfaces and uses the following mapping rules:

  • eth0 - management interface connected to the containerlab management network
  • eth1 - first data interface, mapped to first data port of OcNOS line card
  • eth2+ - second and subsequent data interface

When containerlab launches ipinfusion_ocnos node, it will assign IPv4 address to the eth0 interface. This address can be used to reach management plane of the router.

Data interfaces eth1+ need to be configured with IP addressing manually using CLI/management protocols.