Port configuration is ambiguous..

Posted May 13, 2025 11:21 UTC (Tue) by farnz (subscriber, #17727)
In reply to: Port configuration is ambiguous.. by pizza
Parent article: Making the OpenWrt One

Our ISP was fairly typical - it was paying for 2x10G bearers to us, to provide a symmetric 500 Mbit/s service on top of those bearers.

The reason it paid for 10G bearers is that change of bearer is a slow process, since it involves taking down a bearer (or running fresh fibre) then replacing kit on both ends, whereas getting faster service is just a software change - and they wanted to be able to upgrade us on-demand to a more expensive 1 Gbit/s or 2 Gbit/s without delay.

This is not an atypical configuration for SME dedicated internet access (as opposed to "business" service on consumer products); fast bearer, slow service on top. You don't need more than 2.5 Gbit/s of internal network when you've got under 2.5 Gbit/s of external network, supplied on 2x 10G ports.