32-bit x86 (requires 32-bit library support on 64-bit Linux) March 26, 2015 Stability
: Running IOL/IOU images requires a valid Cisco license file (often referred to as i86bilinuxl3adventerprisek9ms1552tbin exclusive
train, known for introducing modern networking technologies. Notable Features in Release 15.5(2)T 32-bit x86 (requires 32-bit library support on 64-bit
: Advanced manageability for Quality of Service to prioritize critical traffic. Enhanced Security i86bilinuxl3adventerprisek9ms1552tbin exclusive
: Another major platform that leverages IOL images for multi-vendor network emulation. Technical Limitations & Stability