[cisco-voip] Gigabit Ethernet cross-over adapter?

[Doug McIntyre]

On Mon, Apr 12, 2010 at 11:00:50AM -0500, Robert Kulagowski wrote:
> While looking for a T1 crossover adapter, I ran into this:
> 
> http://www.amazon.com/Cables-Unlimited-TST-LOOP-007-Smartronix-Superlooper/dp/B000G82K86/ref=pd_sim_e_8
> 
> If GigE is auto-mdix, when would you use this sort of device?  Is it a
> "belt-and-suspenders" kind of backup plan?

There are some Gig ports that aren't auto MDI/X capable. 
Specificly, I've had a bunch of Cisco 1000-Base-T GBICs that weren't. 

Granted, for something sold in this format at Amazon, the market is
probably people that don't know any better, but I have made many
4-pair cross-over cables for said Cisco gear to function.