| Component | Minimum | Recommended | |-----------|---------|--------------| | RAM | 512 MB | 1–2 GB | | vCPUs | 1 | 2 | | Disk space | 2 GB | 4 GB | | Host CPU | x86_64 | Intel VT-x/AMD-V | | Host OS | Linux (Ubuntu, Debian, CentOS) or Windows (via GNS3/EVE) | Same |
Hardware-based features like are simulated in software. You will not see real show interfaces stats for drops, CRC errors, or backplane saturation. Throughput is limited to your host’s CPU. I86bi-linux-l3-adventerprisek9-ms.155-2.t.bin
If you are prepping for a certification lab and need a reliable, feature-heavy Layer 3 router that won't melt your RAM, is a classic choice. Just keep an eye on your console—if it hangs, a quick reload is usually all it takes to get back to labbing. If you are prepping for a certification lab
While this is an L3 image, people often use it for switching labs due to the lack of good L2 IOU images. As an "Adventerprise" image, it supports almost everything
As an "Adventerprise" image, it supports almost everything you need for CCNP and CCIE labs—Advanced Routing (OSPFv3, EIGRP, BGP), MPLS, VPNs, and complex IPv6 configurations.