: The specific Junos OS version. Release 14.1 was a foundational version for the initial rollout of the vMX.
: Being a single-node image, you don't have to manage the internal communication between a vCP and vFP, which is a common source of troubleshooting issues in newer versions. jinstallvmx141r48domesticimg repack
: You must use virtio-net-pci for the network interface type. If you use other types, the Flexible PIC Concentrator (FPC) may stay offline, and your ge-0/0/* interfaces will never appear. : The specific Junos OS version
jinstall-vmx-14.1R4.8-domestic.img is a legacy, single-node Juniper vMX image frequently used in network labs like jinstallvmx141r48domesticimg repack