Juniper EX4400 - Page 77

Figure 50: LEDs on the SFP+ Network Ports on EX4400-48F Switches
1—
Link acvity LED for the upper port
3—
Status LED for the lower port
2—
Status LED for the upper port
4—
Link acvity LED for the lower port
Table 35 on page 69 describes the link acvity LED on the network ports.
Table 35: Link Acvity LED on the Network Ports
Color State and Descripon
Green
• On steadily—The port and the link are acve, but there is no link acvity.
• Blinking—The port and the link are acve, and there is link acvity.
• O—The port is not acve.
EX4400 switches have network port mode LEDs labeled SPD, DX, and EN on the right-hand side of the
front panel; models with ports that support PoE-bt have an addional mode LED labeled POE (see
Figure 51 on page 70). These LEDs indicate the status of the network ports. Use the mode buon on
the right-hand side of the front panel to toggle the status LEDs to show the dierent port parameters
for the network ports; the port parameter is indicated by the LED that is lit. Table 36 on page 70
describes the status LEDs.
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