This article describes the issue of being unable to specify the speed/duplex settings on the RETH interface.

• The requirement is to hard code the RETH interface to 100/Full; however, there seems to be no option on the RETH to specify the setting.

• If you try to configure speed/duplex setting on the member interface of a RETH interface, it still shows auto-negotiation.

To configure a RETH interface for a specific speed/duplex setting, you have to upgrade to at least 11.1R4, 11.2R2, or 11.4R1. Once upgraded, you can specify the speed/duplex settings on the child interface and these settings will be propagated to the RETH interface. For example:

{primary:node0}[edit]
root@F1-HYATTPTC# show interfaces 
ge-0/0/4 {
    description "To Leverage Internet";
    speed 100m;
    link-mode full-duplex;
    gigether-options {
        no-auto-negotiation;
        redundant-parent reth0;
    }
}

2020-06-12: Article reviewed for accuracy; no changes required