About JasonChan27

JasonChan27 · 02-18-2021

Hi guys, I have on hand a C3650-48FD-S that I just received from Cisco RMA, it comes with 16.3.8 firmware but the switch is meant to replace one from an existing stack that uses 3.6.8E. Every time I try to downgrade, it encounters boot failure and go...

JasonChan27 · 03-02-2021

Yeah, there's no solution even if I know I'm indeed hitting the bug. My whole stack was using 3.6.8E and just because of this bug(with no workaround or fix coming), I had to upgrade the entire stack. It's not like I can downgrade to 3.7.X and expect ...

JasonChan27 · 03-02-2021

Nope, there is no solution. TAC's advice was to upgrade my stack..

JasonChan27 · 02-19-2021

Hi Leo, seeing as there is no workaround for the bug, does that mean I have no other choice other than upgrading the entire stack instead?

JasonChan27 · 02-18-2021

Hi Leo, I have tried booting directly into 3.6.8E bundle mode through ROMMON but the result is still the same. As my second post stated, I have successfully downgraded to 3.7.5E, but even from 3.7.5E i'm unable to further downgrade to 3.6.X without e...

JasonChan27 · 02-18-2021

Ok I have just tried to downgrade to 3.7.5E and it worked.When I compared the two, I notice this line wasn't present when I boot with 3.7.5E --------------------------------------------------------------------------------Warning: Signature envelope s...

Member Since	‎02-18-2021 06:36 PM
Date Last Visited	‎03-09-2021 05:57 PM
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Unable to downgrade C3650 to version 3.X

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