Planning a Virtual Chassis Fabric Deployment
A Virtual Chassis Fabric (VCF) architecture supports up to 20 interconnected devices that are managed as a logical single device. Supported platforms vary depending on the QFX Series switch chosen for the spine. See Understanding Virtual Chassis Fabric Components and Virtual Chassis Fabric Hardware Overview for supported configurations. 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:
Table 1: Deployment Checklist
Item or Task
For More Information
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.
Evaluate the provisioning options and determine the configuration method that applies to your deployment.
Measure the distance between external power sources and switch installation site.
Calculate the power consumption and requirements.
QFX5110 AC Power Specifications
AC Power Specifications for a QFX5100 Device
AC Power Specifications for a QFX3600 or QFX3600-I Device
AC Power Specifications for a QFX3500 Device
|Rack or Cabinet|
Verify that your rack or cabinet meets the minimum requirements for the installation of the switch.
Rack Requirements for a QFX5100 Device
Cabinet Requirements for a QFX5100 Device
Rack Requirements for a QFX3600 or QFX3600-I Device
Cabinet Requirements for a QFX3600 or QFX3600-I Device
Rack Requirements for a QFX3500 Device
Cabinet Requirements for a QFX3500 Device
Rack Requirements for EX4300 Switches
Plan rack or cabinet location, including required space clearances.
QFX5110 Clearance Requirements for Airflow and Hardware Maintenance
Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3600 or QFX3600-I Device
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device
Clearance Requirements for Airflow and Hardware Maintenance for EX4300 Switches
Secure the rack or cabinet to the floor and building structure.
Acquire cables and connectors:
Cable Specifications for QSFP+ and QSFP28 Transceivers
Cable Specifications for Console and Management Connections for the QFX Series
Plan the cable routing and management.