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Switching between TC and TCNC (Encrypted and Non-Encrypted)

Is it possible to change between TCNC and TC firmware versions on the CIsco SX20?

SW Image Non-Encrypted SX Series

SW Image Encrypted SX Series

We have a Cisco SX20 pre loaded with TCNC, but want to put TC firmware on.

Is this possible?

1 REPLY

Switching between TC and TCNC (Encrypted and Non-Encrypted)

should work to upload it, but you need to have the proper license key to get it to work.

I did not try it with >6.2 where "any key" works, but I would expect it to work with the proper key type: TC vs TCNC.

If the webinterface does not allow you to upload the TC software you would need to do some tricks, but it should

be possible.

If you boot up from TC to TCNC remember to check that telnet and http are enabled,

if not you might lock yourself out as https and ssh are not working on the TCNC and you would need

a serial connection which would require either a usb to serial or a y-cable, ...

If you do not have the TC license you would have to contact your Cisco Partner / Cisco and ask

if its possible, I never tried that, if you do so give us a feedback here how it went!

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