Building a Juniper vPTX (vJunos EVO) Libvirt Box¶
Juniper vPTX (known as
vJunos EVO or
vJunos Evolved) is supported by the netlab libvirt package command. To build it:
Create an empty directory on a Ubuntu machine with libvirt and Vagrant.
Juniper vPTXQCOW image from here, and place into that directory
Execute netlab libvirt package vptx virtual-disk-file-name and follow the instructions
netlab release 1.7.0 supports only vJunosEvolved releases that do not require external PFE- and RPIO links. The first vJunosEvolved release implementing internal PFE- and RPIO links is the release 23.2R1-S1.8.
The netlab libvirt package vptx command has been tested on Ubuntu 20.04 LTS and 22.04 LTS and might not work on other Linux distros.
On Ubuntu 22.04 LTS,
libvirt-qemuuser needs read- and execute access to the VM disk file. It’s easiest to create Vagrant boxes in a subdirectory of the
Juniper vJunos EVO uses Linux instead of BSD as the underlying OS. The management interface name became
Initial Device Configuration¶
Initial device configuration is copied from a disk image created by the installation process. You’ll have to save it and shut down the VM. netlab libvirt config vptx command displays the build recipe:
Creating initial configuration for Juniper vPTX (vJunos EVO) =============================================== Initial configuration for the vPTX device is prepared in a bootstrap disk image (pre-install hook). After the system boots and displays the 'login' prompt: * Login with username 'vagrant' and password 'Vagrant' (it might take a while for the username to be recognized) * Verify that the VM got a management IP address with 'show interfaces terse | match re0' * Verify that the FPC 0 is online with 'show chassis fpc' * Shut down the VM with 'request system power-off' (confirm with 'yes') NOTES: * The management traffic is isolated in a dedicated management VRF (mgmt_junos).