... 96th StreetIndianapolis, Indiana 46240 USA Cisco Press CCENT/CCNA ICND1 Official Exam Certification Guide,Second Edition Wendell Odom, CCIE No. 1624 1828xbook.fm Page i Thursday, ... that you have used the wrong cable before (straight-through or crossover), but the cable worked. Cisco switches have a feature called auto-mdix that notices when the wrong cabling pinouts are ... of devices on a LAN. Each address is 6 bytes long, is usually written in hexadecimal, and, in Cisco devices, typically is written with periods separating each set of four hex digits. For example,...