DA SFP to DA SFP (X-Over)

[Alan Robertson]

HI
Is it possible to direct attach two servers togeather with 10/40G SFP or QSFP Ethernet cards with DC Copper Cables or can you only do it with Optics. Like you can do with a x-over RJ45 cable.

Thanks
Alan

 

[PigLover]

Yes. Works well.

Sent from my SM-G950U using Tapatalk

 

[Jon Massey]

Yeah, they're called DACs (Direct Attach Cables). There's no straight-thru vs crossover to worry about.

 

[Alan Robertson]

So just to confirm 2 servers with 10/40G SFP + network cards (Back to Back) will connect with a DA Copper cable (Same cable that would normally to go a Switch). Typical use say for 2 node Vshpere Vsan..

Cheers..

 

[Jon Massey]

Yes

 

[Dast2]

Both 10G SFP+ to SFP+ DAC and 40G QSFP+ to QSFP+ DAC solution are feasible.