On Thu, Jun 12, 2014 at 01:47:06AM -0400, Marcus Reid wrote:
> On Wed, Jun 11, 2014 at 09:06:45PM +0800, bycn82 wrote:
> > Just tell "the command is not working" cannot help in resolving the
> > problem. Could you please provide more detail? for example.
>
> I already gave the info that I have. In this case the data provided by
> the sysctl that gets interface statistics is incomplete.
>
> systat -ifstat shows:
>
> wlan0 in 0.000 KB/s 0.000 KB/s 82.933 MB
> out 0.000 KB/s 0.000 KB/s 0.000 KB
This was sort of a bad paste, I did it when there was no current activity. The
'in' side looks fine normally. Here's another one with activity:
wlan0 in 11.364 KB/s 71.956 KB/s 95.683 MB
out 0.000 KB/s 0.000 KB/s 0.000 KB
There's definitely output, just not accounted for on the 'wlan0' interface.
If you look at iwn0, there it is:
netstat -I iwn0 -i 1 shows:
input iwn0 output
packets errs idrops bytes packets errs bytes colls
0 0 0 0 64 0 9456 0
0 0 0 0 78 0 11354 0
0 0 0 0 54 0 8160 0
0 0 0 0 46 0 7656 0
0 0 0 0 56 0 8158 0
Marcus
> In the systat case, it appears to poll each interface with a:
>
> 20966 systat SCTL "net.link.generic.ifdata.3.1"
>
> netstat -I wlan0 -i 1 shows:
>
> input wlan0 output
> packets errs idrops bytes packets errs bytes colls
> 7 0 0 5010 7 0 0 0
> 15 0 0 10378 15 0 0 0
> 22 0 0 14164 18 0 0 0
> 21 0 0 13058 19 0 0 0
> ...
>
> Note that there are output packets, but not output bytes listed.
> netstat appears to use netgraph for its data, so both the sysctl and
> netgraph methods of getting the data is affected similarly.
>
> This is where the trail went cold for me. I tried looking at the iwn
> driver sources but did not find the place where any counters in the
> kernel are updated. Maybe someone more familiar with the way network
> drivers are written would have better luck.
>
> I had written it off as a hardware quirk when I looked into it, but it
> looks like more than just my wireless card is affected.
>
> Marcus
>
>
> > 1. Firewall can tell you the total in/out traffic
> > 2. The systat -ifstat result.
> > 3. Netstat information
> >
> > In previous email, the guy provided the below information.
> >
> > > > systat -ifstat output:
> > > > Interface Traffic Peak Total
> > > > wlan0 in 1.066 KB/s 16.155 KB/s 377.757 MB
> > > > out 0.000 KB/s 0.000 KB/s 0.000 KB
> >
> > Can you please confirm whether the "377.757 MB" is `in` or `out` traffic?
> >
> >
> > > -----Original Message-----
> > > From: owner-freebsd-curr...@freebsd.org [mailto:owner-freebsd-
> > > curr...@freebsd.org] On Behalf Of Marcus Reid
> > > Sent: 11 June, 2014 18:05
> > > To: Stefan Ehmann
> > > Cc: freebsd-current@freebsd.org
> > > Subject: Re: wlan0/iwn: no upload statistics
> > >
> > > On Sat, Jun 07, 2014 at 11:26:39AM +0200, Stefan Ehmann wrote:
> > > > Network monitoring tools show download traffic, but no upload data.
> > >
> > > I have an iwn0: <Intel WiFi Link 5100> and have the same problem. I was
> > > able to track it down to being some missing ifmib(4) data, secifically
> > > ifi_obytes from the if_data structure (see ifnet(9)).
> > >
> > > This was a little while back, and I seem to remember someone else with
> > > using iwn that didn't have the problem. Another thing is that if you do
> > > a 'netstat -I wlan0 -i 1', output bytes are missing, but if you look at
> > > iwn0 instead all you see is the output bytes and nothing else (except
> > > sometimes you get some numbers in the output packets column seemingly at
> > > random).
> > >
> > > Marcus
> > >
> > > >
> > > > systat -ifstat output:
> > > > Interface Traffic Peak Total
> > > > wlan0 in 1.066 KB/s 16.155 KB/s 377.757 MB
> > > > out 0.000 KB/s 0.000 KB/s 0.000 KB
> > > >
> > > >
> > > > Tested on amd64 CURRENT from few days ago.
> > > >
> > > > netword Card is:
> > > > iwn0: <Intel Centrino Ultimate-N 6300> mem 0xf2000000-0xf2001fff irq
> > > > 17 at device 0.0 on pci3
> > > _______________________________________________
> > > freebsd-current@freebsd.org mailing list
> > > http://lists.freebsd.org/mailman/listinfo/freebsd-current
> > > To unsubscribe, send any mail to "freebsd-current-
> > > unsubscr...@freebsd.org"
> >
> _______________________________________________
> freebsd-current@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
