Summary:Configuring and troubleshooting directly connected Cisco routers seems simple enough, but there are vital details you must know in order to pass the CCNA and CCNP exams and run this config in productions and home lab networks.  Learn these details from Chris Bryant, CCIE #12933. Keywords:ccna, ccnp, cit, dte, dce, serial, connection, cable, show, interface, serial, line,...