Network Port And Expansion Module Port Leds In Ex4550 Switches; Figure 18: Sfp+ Network Port And Sfp+ Expansion Module Port Leds; Table 12: Link/Activity Led On The Management Port On An Ex4550 Switch; Table 13: Status Led On The Management Port On An Ex4550 Switch - Juniper EX4550 Hardware Manual

EX4550 Switch Hardware Guide

Table 12: Link/Activity LED on the Management Port on an EX4550 Switch

LED Color
Link/Activity Green

Table 13: Status LED on the Management Port on an EX4550 Switch

LED Color
Status Green
Related
Documentation

Network Port and Expansion Module Port LEDs in EX4550 Switches

30
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.
Table 13 on page 30 describes the Status LED.
State and Description
Indicates the speed. The speed indications are:
One blink per second—10 Mbps
Two blinks per second—100 Mbps
Three blinks per second—1000 Mbps
Connecting a Device to a Network for Out-of-Band Management on page 165
EX4550 Switches Hardware Overview on page 3
The figures in this topic show the LEDs on the 10-Gigabit SFP+ network and expansion
module ports, 10GBASE-T Ethernet network and expansion module ports, and QSFP+
expansion module ports.
Figure 18 on page 30 shows the LEDs on the SFP+ network ports and SFP+ expansion
module ports of an EX4550 switch.

Figure 18: SFP+ Network Port and SFP+ Expansion Module Port LEDs

Link/Activity
Status
lower port lower port
Link/Activity Status
upper port upper port
Each SFP+ network port and SFP+ expansion module port has two LEDs that indicate
link activity and status of the network ports and the expansion module ports. Each LED
is shaped to point toward the port for which it displays link activity and status.
Figure 19 on page 31 shows the LEDs on the 10GBASE-T Ethernet network ports and the
10GBASE-T expansion module ports of an EX4550 switch.
Copyright © 2017, Juniper Networks, Inc.