Juniper EX4500 Hardware Manual page 53

Table 13: Link/Activity LED on Network Ports and Uplink Module Ports in EX4500 Switches
LED
Link/Activity
The Status LED in Figure 16 on page 52
port parameters. The port parameters are administrative status, duplex mode, and speed.
Table 14 on page 53 describes the Status LED on network ports and uplink module ports in EX4500
switches. From the Idle menu of the LCD, use the Enter button on the LCD panel to toggle between the
ADM, DPX, and SPD indicators.
Table 14: Status LED on Network Ports and Uplink Module Ports in EX4500 Switches
LED
Status
Color
Green
and Figure 17 on page 52
LCD Indicator
LED: ADM
LED: DPX
LED: SPD
State and Description
Blinking—The port and the link are active, and there is
link activity.
On steadily—The port and the link are active, but there
is no link activity.
Off—The port is not active.
indicate the status of one of the three
State and Description
Indicates the administrative status (enabled or disabled).
The status indicators are:
Green—Port is administratively enabled.
Unlit—Port is administratively disabled.
Indicates the duplex mode.
The status indicators for network ports on the front panel
are:
Green—Port is set to full-duplex mode.
Unlit—Port is set to half-duplex mode.
The uplink module ports are always set to full-duplex
mode; therefore, the LED is always green.
Indicates the speed.
The speed indicators are:
Blinking green—1 Gbps
Steadily green—10 Gbps
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