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Install or upgrade the RCF overview - Cisco Nexus 9808

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You can install or upgrade the reference configuration file (RCF) on your Cisco Nexus 9808 switches. You install a supported version of the RCF on the switches as part of a new AFX 2K system installation, a supervisor module replacement, or a switch reset to factory default settings. You upgrade to a supported version of the RCF on the switches to support new hardware, a new ONTAP version, or to align with a new NX-OS version in your AFX system configuration.

Note RCF installation or upgrade is independent of NX-OS installation or upgrade. If you are installing or upgrading both the NX-OS and RCF, it is recommended you install or upgrade NX-OS first.

Understand the supported RCF versions

The version of ONTAP running on your AFX system and version of NX-OS on your Cisco Nexus 9808 switches determines the supported versions of RCF for your switches. RCF versions have preset port speed configurations that determine how many switch ports are in breakout mode (4x100GbE) and non-breakout mode.

Note

For the current list of supported RCF versions, refer to NetApp Cisco Ethernet Switches.

Switch port information can also be found in the NetApp Hardware Universe.
Note For specific port and VLAN usage details, refer to the banner and important notes section in your RCF. Refer to NetApp Cisco Ethernet Switches for more information.

For example, the following table shows the preset groups of the switch ports, their port speeds, and usage based on RCF version 10.1.

Switch port groups Port speeds and usage

Ethernet1/1 to Ethernet1/18

400GbE mode for Intra-cluster, HA, and storage shelf connections

Ethernet1/19 to Ethernet1/35

4x100GbE mode for Intra-cluster, HA, and storage connections

Ethernet1/36

400GbE Intra-cluster ISL connections

Change port speed configuration

For switches with RCF 10.1 and later, you can change the port speed configuration to adjust the number of switch ports in breakout mode (4x100GbE) and non-breakout mode (400GbE) when you need to accommodate a different port speed configuration for your AFX system. Any port modifications made are made per line card(s) currently in use.

You perform this change as part of the RCF installation or RCF upgrade procedure. The procedures have steps that link you to this page.

You enter the commands on both switches.

Change port speeds Steps

Change non-breakout ports to breakout ports

  1. Enter config mode in the CLI.

  2. Modify port speeds and breakout modes on the switches:

    To designate breakout ports, use the interface breakout module command.

    For example, to designate 400GbE mode ports 19-22 as breakout (4x100GbE) ports, use the following:

    interface breakout module 1 port 19-22 map 100g-4x

  3. Modify the port list with the new ports that need to use the port profile for the desired port speed.

    For example, to modify the port list with the new ports, 19-22, for the 100G speed port profile, use the following:

    interface e1/19/1-4, e1/20/1-4, e1/21/1-4, e1/22/1-4

  4. Hard-code the switch breakout (4x100GbE) ports for 100GbE. If you do not hard-code the speed, the ports will not come up and will be in an error-disabled state.

    speed 100000

    no negotiate auto

Return breakout ports to non-breakout ports

  1. Enter config mode in the CLI.

  2. To return breakout ports to non-breakout ports, use the no interface breakout command in config mode.

    For example, to return ports 19-22 to 400GbE mode, use the following:

    no interface breakout module 1 port 19-22

Suggested documentation

Before you install or upgrade the RCF on your switches, it is recommended you review the following documentation:

What's next?

After you've reviewed the install or upgrade RCF overview, you install the RCF or upgrade the RCF as needed.