I think the interface name length is set to 10 characters to allow for VLAN support, where the resulting name would be an interface with name INTF.VLAN (with VLAN up to 4 digits), and the max length allowed by the kernel is 15 characters.

From: Rai, Ankush <Ankush.Rai@commscope.com>
Sent: Wednesday, August 26, 2020 2:25 PM
To: starlingx-discuss@lists.starlingx.io
Subject: [Starlingx-discuss] Is there any workaround to use interface name of length more than 10?

Hi,

I am trying to bring up All-In-One-Duplex deployment.  And as part of controller-1 configuration, setting OAM interface name of length 11 is failing.

> OAM_IF=enp59s0f1d1

> system host-if-modify controller-1 $OAM_IF -c platform

> Interface enp59s0f1d1 has name length greater than 10.

Thanks,
Ankush