I found an article[0] from the end of 2014 that mentions they are using linux for some Open Compute project based switches (OCX models), as well as Yocto Linux

I found an article[0] from the end of 2014 that mentions they are using linux for some Open Compute project based switches (OCX models), as well as Yocto Linux as KVM hypervisor for JunOS on some models. [0] http://www.enterprisenetworkingplanet.com/nethub/juniper-embraces-linux-and-open-compute-project-for-new-switch.html http://www.enterprisenetworkingplanet.com/nethub/juniper-emb...