- 48 ports

- 1000BASE-X (SFP)

- Cisco IOS Software Release 12.2(20)EW or later

- IEEE 802.3x flow control

- Bandwidth is allocated across six 8-port groups, providing 1 Gbps per port group

- Enterprise and commercial: designed for server farms and switch-to-switch applications

- Metro Ethernet: designed for service providers to run point-to-point Gigabit Ethernet over single-mode fiber