I need to upgrade over 300 "A" and "EN" 1900 switchs to v9.00.06. I have 4 switchs setup in my lab that I have upgraded. I have more testing that I need to do and I need to roll the 1900s back to earlyer versions of OS. Is this posable? If so Where can I get older v8.x OS's?
8.x is not available now. If you have one switch with 8.x, you can copy the OS file to the TFTP Server and download the file from a TFTP server to the switch via the network. There must be IP connectivity between the server and the switch.
For a step-by-step procedure for Installing the Software from a TFTP Server, go through the following URL:
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