XB8 Ethernet Port Specs

Hi,

Since the xb8 is still new, no one really knows the specs on the 4 ethernet ports.  Which one is really the 2.5gb, none of the forum actually states which one it's all speculation, even the comcast employee who replied to the question from another subscriber did not know what he's talking about.  I got frustrated with the phone support staff because they too need to research and coming back with a NOT sure answer.  They finally sent a technician to my house since I also have a problem with my internet speed.  But he said he was not sure which one but they always speculate port 1 is always the fastest than all the ports.  So he said since I enabled bridge mode to use my own router, he assumed to use port one since that s what they always use.  Do not use port 4 where the orange little line because that is use for Voice and or cameras. ????? So do I use PORT 1 for 2.5gb?

Thank you