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4108 Fault tolerance.

 
Luis Hernandez_7
Occasional Contributor

4108 Fault tolerance.

Hello.
This is my first posting here so thanks for your time.
I have two 4108gl's. Switch2 uplinks to Switch1 and the backbone connects to Switch1 as well.
Question: what is the best way to have fault tolerance?, connect the backbone to an extra switch and uplink Switch1 and Switch2 directly to this extra switch?, what model of switch can I use (has to be fiber)?
I have plugged my servers' nics to both switches (first and second nics), but as right now Switch2 uplinks to Switch1, if Switch1 dies I am on deep water, right?
Thanks to anyone for any suggestions. LH.