Moments in Graphics
A blog by Christoph Peters
To initialize the IOS XE control plane effectively, the virtual machine must meet minimum hardware specifications: Minimum Requirement Recommended (Production) 2 to 4 Cores (Depending on throughput) RAM Disk Space 16 GB+ (For logging and core dumps) NIC Types VirtIO, E1000 VirtIO or SR-IOV (Single Root I/O Virtualization)
: Note that starting with IOS XE 17.x, traditional licensing is replaced by Smart Licensing Using Policy (SLP). The router operates at a throttled throughput rate (typically 250 Kbps) until registered with your Cisco Smart Software Manager (CSSM) portal to unlock full operational bandwidth.
to initialize the advanced routing features on this specific image?
: High-frequency streaming telemetry for real-time network visibility through tools like Splunk, Cisco Crosswork, or Prometheus. cat9kv-prd-17.12.01prd9.qcow2
As of this writing, Cisco has released later trains (17.14, 17.15), but 17.12.01prd9 remains a for stability. However, note that:
Be patient during boot; virtual interfaces and switching features can take several minutes to become operational after the appliance reaches the command line. Official Documentation & Support
/opt/unetlab/wrappers/unl_wrapper -a fixpermissions To initialize the IOS XE control plane effectively,
Solution: Increase the allocated VM memory to at least 8 GB.
Note: The folder name ( cat9kv-17.12.01-prd9 in this example) determines the boot mode. For UADP mode with 25 ports, the folder would be cat9kvuadp-17.12.01-prd9 .
Includes updated Cisco Common Cryptographic Module (FIPS 140-3 validation readiness) to secure control-plane and data-plane traffic. Try again later.
The is a virtualized disk image of the Cisco Catalyst 9000v (Cat9kv) switch running IOS XE Dublin 17.12.1 . Designed for virtual simulation environments like Cisco Modeling Labs (CML) , EVE-NG , and GNS3 , this specific image allows network engineers to simulate the complex hardware ASIC pipelines of physical Catalyst 9000 switches within a virtual machine. Understanding the Cat9kv 17.12.01 Image
This command optimizes how the virtual disk is enumerated, shaving up to 60 seconds off each reboot.
The ability to use a single image file for multiple modes provides great flexibility for diverse lab scenarios.
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