Juniper QFX3500 - SFP+ Access Ports; System Overview; Figure 1: QFX3500 Device Front; Figure 2: QFX3500 Device Rear

Figure 1: QFX3500 Device Front
FX3500-48S4Q
CO
C1
Management
board
Fan
tray
Fan
tray
Power
supply
Power
supply
Mounting
bracket
Mounting
bracket
g050000
ESD point/
serial number
ID label
Figure 2: QFX3500 Device Rear
g050001
QSFP+
uplink
ports
SFP+
access
ports
SFP+
access
ports
The front panel of the QFX3500 chassis has an LCD panel that displays the device
hostname and the number of active alarms. See “Front Panel of a QFX3500 Device” on
page 19. The rear panel has 48 10-Gbps access ports and 4 40-Gbps uplink ports. See
“Rear Panel of a QFX3500 Device” on page 20.
SFP+ Access Ports
The QFX3500 device has 48 access ports (0 through 47) that support small form-factor
pluggable plus (SFP+) and small form-factor pluggable (SFP) transceivers, as well as
SFP+ direct attach copper cables, also known as Twinax cables. See “Determining
Interface Support for the QFX3500 Device” on page 59.
•
Up to 48 of the access ports can be used for SFP+ transceivers or SFP+ direct attach
copper cables. You can use 10-Gigabit Ethernet SFP+ transceivers and SFP+ direct
attach copper cables in any access port. You can use 2-Gbps, 4-Gbps, or 8-Gbps
Fibre Channel SFP+ transceivers in ports 0 through 5 and ports 42 through 47.
NOTE: If you use Fibre Channel SFP+ transceivers in ports 0 through 5 or
ports 42 through 47, you must configure the entire block of ports as
Fibre Channel ports. For example, if you use a Fibre Channel SFP+
transceiver in any of the ports 0 through 5, then ports 0 through 5 must be
configured as Fibre Channel ports. If you use a Fibre Channel SFP+
transceiver in any of the ports 42 through 47, then ports 42 through 47 must
be configured as Fibre Channel ports. You then cannot use
10-Gigabit Ethernet SFP+ transceivers in these ports.
5Copyright © 2017, Juniper Networks, Inc.
Chapter 1: System Overview