CHAPTER 8
Cable Specifications
•
Cable Specifications for Control Plane Connections for the QFX Series on page 129
•
Cable Specifications for Console and Management Connections for the QFX
Series on page 130
•
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion on page 130
•
Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device on page 132
•
Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device on page 132
Cable Specifications for Control Plane Connections for the QFX Series
The QFX3100 Director device and QFX3500 Node device support using RJ-45 patch
cables to interconnect the QFabric system control plane. The RJ-45patch cables connect
to 1000BASE-T ports on the network modules in the QFX3100 Director device and the
management board in the QFX3500 Node device. This topic describes the requirements
for those cables.
Table 40 on page 129 lists the specifications for the cables that connect the QFX3100
Director device and QFX3500 Node device to the QFabric system control plane.
Table 40: Cable Specifications for QFX3100 Director Device and QFX3500 Node Device Control
Plane Connections
Device ReceptacleMaximum LengthCable SpecificationPort on QFX Series Device
RJ-45 autosensing328 feet
(100 meters)
Category 5 cable or equivalent
suitable for 1000BASE-T operation
with RJ-45 connectors
•
QFX3100 Director device network
module ports
•
QFX3500 Node device management
(C0 and C1) ports
Related
Documentation
Connecting QFX3100 Director Devices to the Control Plane Network on page 275•
• Connecting a QFX3008-I Interconnect Device to the Control Plane Network on page 278
• Connecting a QFX3500 Node Device to the Control Plane Network on page 282
129Copyright © 2012, Juniper Networks, Inc.