Determining Interface Support For The Qfx3500 Device - Juniper QFX5110 Series Hardware Documentation

NOTE: The QSFP+ DAC cables consist of a cable assembly terminated with QSFP+ transceivers
on either end. If you use the QSFP+ DAC cable as the data plane connection between a
QFX3600-I Interconnect device and a QFX3600 or QFX3500 Node device, the interface is
automatically configured to operate at 40 Gbps. If you use the QSFP+ DAC cable to interconnect
a QFX3600 Node device with another device, the interface is automatically configured to operate
as four 10-Gigabit Ethernet interfaces over one cable.
You can find information about the optical transceivers supported on your Juniper device by using the
Hardware Compatibility Tool. In addition to transceiver and connection type, the optical and cable
characteristics–where applicable–are documented for each transceiver. The Hardware Compatibility Tool
enables you to search by product, displaying all the transceivers supported on that device, or category, by
interface speed or type. The list of supported transceivers for the QFX3600 and QFX3600-I Interconnect
device is located at https://pathfinder.juniper.net/hct/product/#prd=QFX3600.
CAUTION:
third-party optic or cable, the Juniper Networks Technical Assistance Center (JTAC)
can help you diagnose the source of the problem. Your JTAC engineer might recommend
that you check the third-party optic or cable and potentially replace it with an equivalent
Juniper Networks optic or cable that is qualified for the device.
RELATED DOCUMENTATION
Front Panel of a QFX3600 Device | 48
Rear Panel of QFX3600 and QFX3600-I Devices

Determining Interface Support for the QFX3500 Device

The 48 small form-factor pluggable plus (SFP+) access ports in the QFX3500 device support SFP and SFP+
transceivers, as well as SFP+ direct-attach copper (DAC) cables.
The four quad small form-factor pluggable plus (QSFP+) uplink ports in the QFX3500 device support
QSFP+ transceivers, as well as QSFP+ DAC and DAC breakout cables. When the QFX3500 device is
operating as a standalone switch, each QSFP+ port can be configured to operate as 10-Gigabit Ethernet
interfaces or a single 40-Gigabit Ethernet interface. By default, the uplink ports on a standalone switch
are configured as 10-Gigabit Ethernet interfaces.
If you face a problem running a Juniper Networks device that uses a
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