C2960-lanbasek9-mz.122-44.SE6.bin is an IOS image file name used for Cisco Catalyst 2960-series switches. The filename encodes several details: the platform family (C2960), feature set (lanbasek9), image packaging (mz — compressed, executable), and the software train and version (12.2(44)SE6). This image delivers Layer 2 switching functionality and selected Layer 3-lite features appropriate for access-layer enterprise deployments.
Cisco declared the Catalyst 2960 (non-S, non-Plus) End-of-Support on April 30, 2018. The final suggested image for the 2960 platform was actually 12.2(55)SE, but 12.2(44)SE6 is far older. C2960-lanbasek9-mz.122-44.se6.bin
Symptom: crypto key generate rsa fails or SSH login hangs.
Cause: Insufficient entropy or missing ip domain-name.
Fix: C2960-lanbasek9-mz
ip domain-name lab.local
crypto key generate rsa modulus 1024
ip ssh version 2
(Note: 2048-bit keys are not supported in this IOS version.) (Note: 2048-bit keys are not supported in this IOS version
After the switch reboots:
Understanding the nomenclature of Cisco IOS images is essential. Let’s dissect: