Once upon a time, Matt Harris <[email protected]> said: > There's no Linux going on in Junos itself as far as I know, however Juniper > does utilize Wind River Linux as an intermediary virtualization step for > some of their virtualized products like the vSRX.
Most (if not all) of the current routing engines run the FreeBSD-based Junos in a VM on a Linux hypervisor. There's also Junos Evolved, which is Junos ported over to a Linux-based system instead of FreeBSD (among other architectual changes). -- Chris Adams <[email protected]>

