Re: Slow transmission with Marvell SKnet

[mlelstv%serpens.de@localhost (Michael van Elst)]

tls%panix.com@localhost (Thor Lancelot Simon) writes:

>On Sun, Aug 13, 2017 at 05:39:46PM -0000, Michael van Elst wrote:
>> 
>> Disabling certain speeds from autoneg is a fringe case compared to that,
>> but we should support it too. But lets not trade one for the other.

>That "fringe case" is the default behavior of Windows, OS X, Linux,
>most FreeBSD drivers, and current versions of most router operating
>systems.

In Linux you specify either a fixed speed (with autoneg off) or
the set of speeds that autoneg may advertise. There is no
default behaviour (for what?).

Lots of hardware doesn't even allow you to configure what speeds it
advertises when autoneg is enabled. That's a rather "modern" feature.

The fringe case is to have working autoconfig but advertising a lower
speed than possible. I can imagine a few case where people are willing
to do that, in particular when they can only control one side of the link.
But then it's usually a switch or router on both ends.

-- 
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."