Planning A Virtual Chassis Fabric Deployment; Table 24: Deployment Checklist - Juniper QFX5100 Hardware Manual

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Planning a Virtual Chassis Fabric Deployment

Table 24: Deployment Checklist

Item or Task
Components
Determine the number of devices in the
VCF and the role of each device.
NOTE: A VCF is not constrained to a
single building; the limits for the optic
cable are the only consideration.
Copyright © 2017, Juniper Networks, Inc.
Table 23: Site Electrical Wiring Guidelines (continued)
Site Wiring Factor
Radio frequency interference
Electromagnetic compatibility
General Safety Guidelines and Warnings on page 187
General Electrical Safety Guidelines and Warnings on page 209
Prevention of Electrostatic Discharge Damage on page 210
A Virtual Chassis Fabric (VCF) architecture supports up to 20 interconnected devices
that are managed as a logical single device. Supported platforms in a VCF are QFX5100,
QFX3600, QFX3500, and EX4300. Although the architecture has a powerful
auto-provisioning option, which allows you to plug and play the devices, careful planning
of the deployment can avoid unexpected results.
For example, if you perform any configuration level commands on one of the devices
(including assigning IP addresses or host names) you no longer can use auto-provisioning.
Use the following checklist to plan your deployment:
For More Information
Understanding Virtual Chassis Fabric
Components
Guidelines
To reduce or eliminate RFI from your site wiring, do the following:
Use a twisted-pair cable with a good distribution of grounding
conductors.
If you must exceed the recommended distances, use a
high-quality twisted-pair cable with one ground conductor
for each data signal when applicable.
If your site is susceptible to problems with electromagnetic
compatibility (EMC), particularly from lightning or radio
transmitters, seek expert advice.
Some of the problems caused by strong sources of
electromagnetic interference (EMI) are:
Destruction of the signal drivers and receivers in the device
Electrical hazards as a result of power surges conducted over
the lines into the equipment
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Chapter 5: Preparation Overview
Date
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