IPv6 window scaling factor always 1 on initial SYN

Bjoern A. Zeeb bz at FreeBSD.org
Tue Apr 7 07:45:08 PDT 2009

On Mon, 6 Apr 2009, sthaug at nethelp.no wrote:

>> Can you try changing it to < sb_max) for IPv6 as well and see if
>> things work (better) for you?
> I changed it, and that worked like a dream. Now I get basically the
> same throughput with IPv4 and IPv6. There are of course still issues
> like lots of IPv6 tunnels that add extra latency - but that's not the
> fault of FreeBSD.
> Anyway, thanks for your work. Below is a context diff (against 7-STABLE
> cvsupped last night). Do we need a PR to get this into FreeBSD?

It's in HEAD now as of SVN r190800.

Bjoern A. Zeeb                      The greatest risk is not taking one.

More information about the freebsd-net mailing list