Upgrading CatOS on a Cat 4000

Unanswered Question
Mar 8th, 2007

We have a mixture of Switches and there are some 4003 and 4006 that I need to upgrade their OS. One of these switches does not have any devices plugged into them so I want to upgrade this first.

Question.

1. As these switches are already connected and using trunk, upgrading and subsequent rebooting, will it upset / affect any of the other switches and the network. This is a LIVE network.

2. Will there be any spanning tree recalculation.

3. If I were to isolate this switch just for this purpose, which will involve my disconnecting the Gigabit trunks around, will it affect the network? And will there be any spanning tree recalculation again?

Thanks

I have this problem too.
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