My broadband internet connection goes from a cable to a combo switch/router/wlan supplied by the phone company that has 4 outgoing ethernet ports. I have two of these connected directly to PCs and it works fine.

One of the ethernet cables is very long and runs down to the office PC.

I now want to setup a third machine located in the office.

The plan is to purchase a Cisco SD2008T, 8 Port Gigabit Ethernet Switch for the office, and two more short ethernet cables.

I will connect the two office machines to the new switch and then connect this switch with a long cable to the main router/switch.

My question is do I need a crossover ethernet cable to connect the two switches, or will the existing long straight ethernet cable work fine?


The long, straight cable will work fine. All modern switches have auto-MDI/X.

Automatic MDI/MDI-X cable detection adjusts for different cable types currently in use on your network. - Amazon.com page for SD2008T

You should never use crossover cables with Gigabit ports unless you know exactly what you're doing.


You only need a Crossover Cable to connect two PCs directly without a switch in between. And most NICs don't even need that anymore. For you switch just use a standard LAN cable. Unless "very long" does not mean more than 100 metres you should be good there as well.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.