Users Guide

Network Link and Activity IndicationNetXtreme-E User’s Manual
September 4, 2019 • NetXtreme-E-UG103 Page 20
BCM957412M4120D
This rNDC has SFP+ and RJ-45 ports, each with two LEDs to indicate traffic activities and link speed. The LEDs
are shown in Figure 14 and described Table 10 (Ports 1 and 2)/Table 11 (Ports 3 and 4).
Figure 14: BCM957412M4120D Network Daughter Card (rNDC) Activity and Link LED Locations
Table 10: BCM957412M4120D Network Daughter Card (rNDC) Activity and
Link LED Locations SFP+ Port 1 and 2
LED Type Color/Behavior Notes
Activity Off No Activity
Green blinking Traffic Flowing Activity
Link Off No Link
Green Linked at 10 Gbps
Note: When a XTY28 transceiver is connected to a 10 Gbps controller and if the link establishes at
1 Gbps, the link LED is off and the activity LED will blink.
Table 11: 1000BaseT Port 3 and 4
LED Type Color/Behavior Notes
Activity Off No Activity
Green blinking Traffic Flowing Activity
Link Off No Link
Green Linked at 1 Gbps
Amber Linked at 10/100 Mbps
Port 1 Link LED Port 2 Link LED
Port 1 Activity LED Port 2 Activity LED
Port 3 Link LED
Port 3 Activity LED
Port 4 Link LED
Port 4 Activity LED