We have 5 3com 4200 switches forming a ring (connected using 10GBase-CX4 XENPAK modules) and would like to add a few servers with 10GbE adapters soon.
The offer we are currently looking at consists of a Voltaire 6024 10GbE switch and various transceivers so we can add it to our ring:
- 2 SFP+ 10Gbase-SR transceivers for the Voltaire switch
- Fibre cables (LC-LC)
- 10Gbase-SR to XFP transceiver for the 3Coms
- 1-Port 10G XFP modules for the 3Coms
Alternatively, we could break up the ring and connect each of the 3Com switches to the Voltaire using these components so we get 10GbE for each of our 3Coms instead of for all of them together.
Is this a good solution? What kind of overhead should we expect from using SFP+ => 10Gbase-SR => XFP => 3com switches?
Ideally, we would like to use SFP+ (for NICs and the switch), but if CX4 etc. offers some advantages in this situation, we can still change that and purchase other components.