• Installing a Transceiver in a QFX Series Device on page 214
• Removing a Transceiver from a QFX Series Device on page 213
Interface Specifications for SFP+ DAC Cables for the QFX Series
Small form-factor pluggable plus (SFP+) direct attach copper (DAC) cables, also known
as Twinax cables, are suitable for in-rack connections between servers and either the
QFX5100-48S, QFX5100-96S, or QFX3500 devices. Juniper Networks SFP+ DAC cables
may also be used in QFX Virtual Chassis and Virtual Chassis Fabric (VCF).
While we highly recommend using Juniper Network DAC cables, QFX Series switches do
support third-party DAC cables. If you choose to use a third-party cable, it should meet
the specifications described in Table 41 on page 127 and Table 42 on page 130.
CAUTION: If you face a problem running a Juniper Networks device that uses
a third-party opticor cable, the Juniper NetworksTechnical Assistance Center
(JTAC) can help you diagnose the source of the problem. Your JTAC engineer
might recommendthat you check thethird-partyoptic orcable andpotentially
replace it with an equivalent Juniper Networks optic or cable that is qualified
for the device.
Table 40 on page 126 describes the Junos OS software releases that supports third-party
DAC cables. Prior releases only permitted Juniper Networks DAC cables.
Table 40: Third-Party SFP+ DAC Cable Support
Third-Party DAC Cable Support AddedPlatform
Junos OS 11.3X30.6QFX3500 Node device in a QFabric system
Junos OS 11.3R4QFX3500 device as a standalone switch
Junos OS 13.2X51-D10QFX5100 device as a standalone switch
NOTE: Thistopicdoes notdescribe whichdevices support these transceivers.
For informationabout which transceiversaresupportedon QFX Series devices,
see the following topics:
•
Interface Support for the QFX3600 Device
•
Interface Support for the QFX3500 Device
•
Interface Support for the QFX5100 Device on page 86
•
Interface Support for the QFX3008-I Interconnect Device
Copyright © 2016, Juniper Networks, Inc.126
QFX5100 Switch Hardware Guide
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