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2.2.2 Ethernet Ports
Uplink Ports
The external RJ-45 ports support IEEE 802.3x auto-negotiation of speed, duplex mode, and flow control.
Each port can operate at 10 Mbps, 100 Mbps and 1000 Mbps, full and half duplex, and control the data
stream to prevent buffers from overflowing. The up-link ports can be connected to other IEEE 802.3ab
1000BASE-T compliant devices up to 100 m (328 ft.) away using Category 5 twisted-pair cable. These
ports also feature automatic MDI/MDI-X operation, so user can use straight-through cables for all
connections. In addition, the SFP ports on SB11a will support the single and dual mode and the 10G
ports on SB11 are the standard SFP+ compliant.
Note – Note that when using auto-negotiation, the speed, transmission mode and flow control can be
automatically set if this feature is also supported by the attached device. Otherwise, these items can be
manually configured for any connection.
Note – Auto-negotiation must be enabled for automatic MDI/MDI-X pin-out configuration.
Internal Ports
The Ethernet Connection Blade also includes 36 internal 1000BASE-X Gigabit Ethernet ports that
connect to the server blades in the chassis. These ports are fixed at 1000 Mbps, full duplex.
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