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Hardware overview 17
Model 6081RC Network Access Server User Manual 1 • Model 6081RC overview
LAN Ethernet port
Front panel 10/100-Mbps Ethernet LAN port labeled ENET (ETH0) is presented on a RJ-45 connector with
an auto-sensing/full-duplex 10Base-T or 100Base-T interface. Also included are:
• 100Base-TX half-/full-duplex operation (100 + 100)
• 10Base-T half-/full-duplex operation (10 + 10)
• Auto negotiation and fallback
• 10/100 Mbps link and status indicators on the RJ-45 connector
• Two LEDs per port (see figure 3): link/traffic LED (solid green when link is established; flashing green
when the port has traffic) and 10/100 Mbps LED (solid yellow at 100 Mbps; off at 10 Mbps)
Figure 3. Model 6081RC Ethernet port LEDs
Packet switched Ethernet bus (PSB)
• Two internal Ethernet buses connecting over the mid-plane for intercard communication within the chassis
(or chassis segments of the Model 6676)
• Hash-table-based address filtering for up to 8k MAC addresses, unicast and multicast
• Wire-speed DMA transfer of entire MAC frame to system memory
Backplane Ethernet interfaces
• Two internal Ethernet ports connecting to backplane for intercard communication
• Auto-sensing full/half-duplex 10Base-T/100Base-TX operation, IEEE 802.3 compliant
• Hash-table-based address filtering for up to 8k MAC addresses, unicast and multicast
• Wire-speed DMA transfer of entire MAC frame to system memory
PWR
2
L2 LINK
ENET
CONFIG
10/100 ENET
READY
Link/Traffic
LED
10/100 Mbps
LED