Vqfx-20.2r1.10-re-qemu.qcow2 2021 Direct

If you’re trying to use it:

Run the built-in Eve-NG wrapper script to ensure the QEMU process has read and write permissions over the new image file: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions Use code with caution. Linking the RE to the PFE

This is the QEMU Copy-On-Write format. It is a highly efficient disk image format that supports thin provisioning (the file grows only as data is added) and snapshots. The Dual-VM Architecture: RE vs. PFE

Use the qcow2 image as the main disk for the Routing Engine.

Handles actual data plane traffic forwarding between lab interfaces. Vqfx-20.2r1.10-re-qemu.qcow2

Would you like help with , launching it in QEMU , or integrating it into a network lab ?

Unlike a single-file virtual machine, the vQFX typically operates using a dual-VM architecture to simulate the high-performance hardware of the QFX series:

To understand the image, we must first understand the hardware it emulates. The Juniper Networks QFX10000 is a high-end, modular Ethernet switch portfolio designed for large-scale data centers and service provider networks. Juniper offers a virtualized version of this switch, known as vQFX, which provides an identical control plane feature set to its physical counterpart.

| Problem | Likely Fix | |---------|-------------| | | Ensure image name matches EVE-NG expectation ( hda.qcow2 ). Check KVM acceleration ( egrep -c '(vmx\|svm)' /proc/cpuinfo ). | | PFE not showing up | Verify that the PFE node is powered on after the RE node. Ensure they are connected via a vEth link (not a bridged network). | | High CPU on host | Limit RE to 2 vCPUs. Disable set protocols lldp to reduce background tasks. | | Cannot commit config | Run request system storage cleanup . 20.2R1.10 has a known log rotation bug. | | Licensing warning | Apply a free trial license from Juniper’s website – the image will run in limited mode for 60 days without one. | If you’re trying to use it: Run the

: Specifies the Routing Engine , which houses the control plane.

Running multiple vQFX nodes simultaneously can push physical CPU usage to 100%.

However, for the vQFX specifically, the standard naming convention in EVE is usually:

This is the . QEMU Copy-On-Write version 2 is an advanced format that supports: The Dual-VM Architecture: RE vs

: For standard lab testing of BGP, OSPF, LLDP, and basic EVPN, these license warnings can be ignored as the features remain functional in software-emulated environments. Conclusion

The vQFX requires a specific internal connection to bridge the control plane (RE) and data plane (PFE). Management Port: Connect the first interface ( ) of the RE to your management network or admin VLAN. Internal Link: Connect the second interface ( ) of the RE directly to the second interface ( ) of the PFE. Data Ports:

This image is used for: