Planning Irf Fabric Setup; Planning Irf Fabric Size And The Installation Site; Identifying The Master Switch And Planning Irf Member Ids - HP 5920 Series Installation Manual

Step
2. Install
switches
3. Connect ground wires
and power cords
4. Power on the switches
5. Configure
settings
Connect the physical
6.
IRF ports

Planning IRF fabric setup

This section describes issues that an IRF fabric setup plan must cover.

Planning IRF fabric size and the installation site

Choose switch models and identify the number of required IRF member switches, depending on the user
density and upstream bandwidth requirements. The switching capacity of an IRF fabric equals the total
switching capacities of all member switches.
Plan the installation site depending on your network solution, as follows:
Place all IRF member switches in one rack for centralized high-density access.
•
• Distribute the IRF member switches in different racks to implement the top-of-rack (ToR) access
solution for a data center.
NOTE:
As your business grows, you can plug an HP 5920 or 5900 switch into an IRF fabric to increase the
•
switching capacity without any topology change or replacement.

Identifying the master switch and planning IRF member IDs

Determine which switch you want to use as the master for managing all member switches in the IRF fabric.
An IRF fabric has only one master switch. You configure and manage all member switches in the IRF
fabric at the command line interface of the master switch.
NOTE:
IRF member switches will automatically elect a master. You can affect the election result by assigning a
high member priority to the intended master switch. For more information about master election, see
5920 & 5900 Switch Series IRF Configuration Guide
Description
•
Planning IRF topology and connections
•
Identifying physical IRF ports on the member switches
•
Planning the cabling scheme
IRF member
See "Installing the switch in a 19-inch
See "Grounding the
N/A
basic IRF
See HP 5920 & 5900 Switch Series IRF Configuration Guide.
Connect the physical IRF ports on switches. Use SFP+ or QSFP+ transceiver
modules and fibers for long-distance connection. Use SFP+ or QSFP+ cables for
short-distance connection.
All switches except the master switch automatically reboot, and the IRF fabric is
established.
rack".
switch" and "Connecting the power
.
33
cord."
HP