Juniper QFabric QFX3000-G Hardware Documentation page 173

Rear Panel of a QFX3500 Device
Copyright © 2018, Juniper Networks, Inc.
Prevention of Electrostatic Discharge Damage on page 360
Installing and Removing QFX3500 Device Hardware Components on page 645
The rear panel of the QFX3500 device consists of the following components:
Access ports—The QFX3500 device has 48 access ports (
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.
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
NOTE: If you use Fibre Channel SFP+ transceivers in ports
or ports
42
Fibre Channel ports. For example, if you use a Fibre Channel SFP+
transceiver in any of the ports
be configured as Fibre Channel ports. If you use a Fibre Channel SFP+
transceiver in any of the ports
must be configured as Fibre Channel ports. You then cannot use
10-Gigabit Ethernet SFP+ transceivers in these ports.
Up to 36 of the access ports can be used for SFP transceivers. Gigabit Ethernet SFP
transceivers can be used in ports
CAUTION:
above or below another copper transceiver. Internal damage to the access
ports and device can occur. Because of this limitation, a maximum of 18
copper transceivers can be installed in ports
using only the top row of access ports for copper transceivers.
Uplink ports—The QFX3500 device has four uplink ports (
up to four QSFP+ DAC breakout cables. See Determining Interface Support for the
QFX3500 Device. When the QFX3500 device is used as a Node device in a QFabric
system, these uplink ports are used to connect the QFX3500 Node devices to
Interconnect devices.
NOTE: The QSFP+ uplink ports are not supported in Junos OS Release 11.1.
The QSFP+ uplink ports are supported in Junos OS Release 11.2 and later.
Access port and uplink port LEDs
through
0
through , you must configure the entire block of ports as
47
0 through
through
42
through .
6 41
Do not place a copper transceiver in an access port directly
Chapter 6: QFX3500 Overview
through ) that support
0 47
and ports through .
5 42 47
through
0
5 , then ports 0 through 5 must
, then ports through
47 42
through . We recommend
6 41
through ) that support
Q0 Q3
5
47
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