Ensure your switch has at least 128MB of DRAM and 32MB of Flash. Older 3560 units (non-G, non-V2) may struggle with the size of 15.x images.
Switch# copy tftp flash
Distributing this file without authorization violates Cisco’s End User License Agreement (EULA) and international copyright laws (DMCA in the US). Network professionals should never share IOS images on public forums. Doing so can result in: C3560-ipservicesk9-mz.150-2.se11.bin Download
Regardless of source, verify the MD5/SHA256 checksum. A clean file from Cisco should match:
As the 15MB file trickled down through the console cable, Elias watched the hash verification. If even one bit was out of place, the switch would reject it. He used a TFTP server, the vintage tool of the trade, watching the exclamation points fill the terminal window: Ensure your switch has at least 128MB of
: Target hardware. This image is for the original 3560 (non-E/X) series.
: Border Gateway Protocol support for external network routing and internet multihoming. Network professionals should never share IOS images on
: The target hardware architecture, signifying compatibility with Cisco Catalyst 3560 and 3560G series switches.
Tell the switch to load the new software image upon the next reload sequence:
If the path is correct, reload the switch to execute the upgrade: Switch# reload Use code with caution.