Vqfx202r110reqemuqcow2 Exclusive -

: The file extension for QEMU Copy-On-Write version 2 . This is a versatile disk image format that supports thin provisioning, meaning the file only grows as data is actually written to it, saving significant disk space on the host machine. The Role of the RE Image

: This is the Junos OS version. "20.2" is the release year and series, "R1" indicates the first revision, and ".10" is the specific build number. vqfx202r110reqemuqcow2 exclusive

: The RE image handles protocols like OSPF, BGP, and STP, as well as SSH access and the Junos CLI. : The file extension for QEMU Copy-On-Write version 2

: Stands for Routing Engine . In a vQFX setup, you typically need two separate virtual machines: one for the RE and one for the PFE (Packet Forwarding Engine) . In a vQFX setup, you typically need two

: The RE must be linked to a corresponding PFE image (e.g., vqfx-20.2R1.10-pfe-qemu.qcow2 ) via a dedicated internal interface, often named em1 , to allow the control plane to communicate with the data plane. Usage in Network Labs