Re: Too aggressive TCP ACKs

2022-10-26 Thread Tom Jones
On Sat, Oct 22, 2022 at 12:14:25PM +0200, Hans Petter Selasky wrote: > Hi, > > Some thoughts about this topic. > > Delaying ACKs means loss of performance when using Gigabit TCP > connections in data centers. There it is important to ACK the data as > quick as possible, to avoid running out of

Re: Too aggressive TCP ACKs

2022-10-26 Thread Hans Petter Selasky
On 10/26/22 10:57, Tom Jones wrote: It focuses on QUIC, but congestion control dynamics don't change with the protocol. You should be able to read there, but if not I'm happy to send anyone a pdf. If QUIC doesn't support TSO (Large Send Offload), it cannot be compared I think. --HPS

Re: netstat -I ix0

2022-10-26 Thread Cristian Cardoso
Hi Despite the error increments in the interface, I used the equipment for a month until I migrated my things from the router I had and even with a large error increment I didn't have any problems with packet loss or routing. Em ter., 25 de out. de 2022 às 17:58, Victor Gamov escreveu: > So, it

Re: netstat -I ix0

2022-10-26 Thread Franco Fichtner
> On 26. Oct 2022, at 13:11, Cristian Cardoso > wrote: > > Despite the error increments in the interface, I used the equipment for a > month until I migrated my things from the router I had and even with a large > error increment I didn't have any problems with packet loss or routing. The c

Re: Too aggressive TCP ACKs

2022-10-26 Thread tuexen
> On 26. Oct 2022, at 10:57, Tom Jones wrote: > > On Sat, Oct 22, 2022 at 12:14:25PM +0200, Hans Petter Selasky wrote: >> Hi, >> >> Some thoughts about this topic. >> >> Delaying ACKs means loss of performance when using Gigabit TCP >> connections in data centers. There it is important to ACK

Re: Too aggressive TCP ACKs

2022-10-26 Thread Tom Jones
On Wed, Oct 26, 2022 at 02:55:21PM +0200, tue...@freebsd.org wrote: > > On 26. Oct 2022, at 10:57, Tom Jones wrote: > > > > On Sat, Oct 22, 2022 at 12:14:25PM +0200, Hans Petter Selasky wrote: > >> Hi, > >> > >> Some thoughts about this topic. > >> > >> Delaying ACKs means loss of performance w

Re: Too aggressive TCP ACKs

2022-10-26 Thread tuexen
> On 26. Oct 2022, at 14:59, Tom Jones wrote: > > On Wed, Oct 26, 2022 at 02:55:21PM +0200, tue...@freebsd.org wrote: >>> On 26. Oct 2022, at 10:57, Tom Jones wrote: >>> >>> On Sat, Oct 22, 2022 at 12:14:25PM +0200, Hans Petter Selasky wrote: Hi, Some thoughts about this topic.

Re: netstat -I ix0

2022-10-26 Thread Victor Gamov
I check the patch and looks like huge errors counter due huge UDP traffic in my case. I'll try to upgared and check it. Thanks for everyone! On 26.10.2022 14:34, Franco Fichtner wrote: On 26. Oct 2022, at 13:11, Cristian Cardoso wrote: Despite the error increments in the interface, I us

Re: finding optimal ipfw strategy

2022-10-26 Thread Victor Gamov
Hi All Up this thread after few years :-) Now I have following HW/SW setup: - FreeBSD 12.3-STABLE r372089 GENERIC amd64 - Xeon(R) CPU E5-2470 v2 @ 2.40GHz - ix0 hardware - about 10-15 vlans like "vlan: 100 vlanpcp: 0 parent interface: ix0" - and all vlans are bridged via bridgeX - about 200 mul

Re: getaddrinfo error for existing host without requested address family

2022-10-26 Thread Mike Karels
On Oct 17, I wrote: > On Wed, 28 Sep 2022, Konstantin Belousov wrote: > > On Tue, Sep 27, 2022 at 03:53:12PM -0500, Mike Karels wrote: > > > I recently noticed the following behavior: > > > > > > % ping6 redrock > > > ping6: Name does not resolve > > > % host redrock > > > redrock.karels.net has