Hi Sven,
thanks for your comment.
On 13/05/18 14:56, Sven Eckelmann wrote:
On Sonntag, 13. Mai 2018 00:02:23 CEST Marek Lindner wrote:
If link auto-negotiation is disabled the exported link speed can not be relied on.
Why is a manual set speed less worth than a auto-configured one?
if the user wants to configure a "default throughput" for the interface, he can always use the default_throughput knob in batman-adv.
The problem with autonegotiation disabled is that the advertised speed is likely to be a random number set by default by the driver.
For example, some people in the freifunk community have tested this patch because they wanted to see how the tp_meter would perform on VPN links. Unfortunately the tun.ko module sets 10Mbps/AUTONEG_DISABLE as default settings.
From there we thought that, after all, if the autonegotiation is disabled, we should just assume that the speed is likely to be bogus and it's better to measure it.
Does it make sense?
Cheers,