How to fix Unable to set physical port speed as ‘SR’ or ‘LR’

This article describes how to resolve a scenario where the user is unable to set the physical port speed as ‘SR’ or ‘LR’ when configuring the port in the CLI.

Scope

FortiSwitchOS 6.0.1, FortiSwitchOS 6.0.0.

Solution

In certain versions of FortiSwitchOS 6.0.x, there is no ability to set a port to use a specific transceiver signaling method.

The ability to do this was introduced in FortiSwitchOS 6.0.2.

The following is the output on 6.0.1:

set speed
10000full 10Gbps full-duplex.
1000auto Auto-negotiation (1Gbps full-duplex only).
1000full 1Gbps full-duplex.
auto-module Max speed supported by module.

The following is the output on 6.0.2:

set speed
10000cr 10 Gbps copper interface.
10000full 10 Gbps full-duplex.
10000sr 10 Gbps SFI interface.
1000full 1 Gbps full-duplex.
auto-module Maximum speed supported by
module.