Cisco 3750 IOS Update


SupraFortix Blog

This post demonstrates an Internetwork Operating System (IOS) replacement on a Cisco 3750 48-Port Layer 3 switch. The demonstration utilises various types of hardware and software all described further in the post.

THE HARDWARE

CISCO 3750 48-Port Switches
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The initial connections have to be established to the first switch to begin this test. Of course power on the right side and a console cable on the left.
Diagram551

The console cable has to be converted to a USB cable with a serial to USB converter.
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THE SOFTWARE

PUTTY.EXE is used to create a serial connection between the laptop and the switch. Putty is a simple to use tool, usually utilised to establish SSH or Telnet communication to remote systems.

To establish the connection open up Putty, choose a Serial connection, keep the speed default and write appropriate channel number of the serial connection and hit Open. That should open up…

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