The Catalyst 3548 XL switch is a member of the Cisco Systems Catalyst 3500 series XL, a scalable line of stackable 10/100 and Gigabit Ethernet switches that delivers premium performance, manageability, and flexibility with unparalleled investment protection. The 3548 XL offers customers tremendous benefits through Gigabit Ethernet-based configuration options, the new Cisco Switch Clustering multidevice management architecture, and integrated IP voice and telephony support.??The Catalyst 3548 XL has 48 10/100 ports and two GBIC-based Gigabit Ethernet ports. The built-in Gigabit Ethernet ports accommodate a range of GBIC transceivers, including the Cisco GigaStack GBIC, and 1000BaseSX, 1000BaseLX/LH and 1000BaseZX GBICs. The dual GBIC-based Gigabit Ethernet implementation provides customers tremendous deployment flexibility - allowing customers to implement one type of stacking and uplink configuration today, while preserving the option to migrate that configuration in the future.??T...