: As it runs IOS XE, it supports modern automation interfaces like NETCONF , RESTCONF , and gNMI , making it a perfect tool for testing Python-based network automation.
: This is the file extension for QEMU Copy-On-Write . It is a disk image format used by the QEMU/KVM hypervisor, which is the standard for tools like GNS3, EVE-NG, and Cisco Modeling Labs (CML). Key Features of the Catalyst 9000v
: Minimal initial space, but the QCOW2 format grows as data is written to the virtual switch. cat9kvprd171201prd9qcow2
: This is the official Cisco platform for network simulation. The .qcow2 format is natively supported, allowing users to build complex topologies for certification prep (like CCNP or CCIE).
: It supports a vast majority of the Layer 2 and Layer 3 features found on physical switches, including OSPF, BGP, EVPN-VXLAN, and TrustSec. : As it runs IOS XE, it supports
The cat9kvprd171201prd9qcow2 image is primarily used in three environments:
: Refers to the software version, specifically IOS XE 17.12.1 . Version 17.12 (Dublin) is a significant release in the Cisco IOS XE lifecycle , introducing various features for SD-Access and automation. Key Features of the Catalyst 9000v : Minimal
The Catalyst 9000v allows engineers to simulate the behavior of physical Catalyst 9300 or 9500 switches without needing the expensive hardware. Key capabilities include:
: In "Infrastructure as Code" (IaC) workflows, this virtual image can be used to automatically spin up a switch, test a new configuration snippet, and tear it down, ensuring that updates don't break the network. Deployment Requirements