Sean said it all.
Do you plan to link the two PI with a cross link ethernet cable or do you plan to use an Ethernet switch ?
Will there be any other Ethernet devices (most importantly an Ethernet router like a Wifi AP...) or there will be only the two PIs ?
Do you plan to link the two PI with a cross link ethernet cable or do you plan to use an Ethernet switch ?
Will there be any other Ethernet devices (most importantly an Ethernet router like a Wifi AP...) or there will be only the two PIs ?