hme0 tx problem

[Bjoern A. Zeeb]

On Tue, 28 Sep 2004, Andrew Belashov wrote:

Hi,

> >>I am ftping a 10M file generated from /dev/urandom for ethernet
> >>testing from host to host. While I can get the file with ~7-8MBit/s
> >>I can only put it with ~65KBit/s.  I already played with -txcsum.
> >
> >
> > ok, though both switch and sparc said they are 100FDX the switch
> > hadn't been *grml*; I forced re-negotiation and now I can get up
> > to 3.5MBit/s TX speed (with still 7-8MBit/s RX) but tx still is
> > half from what I would expect ?
> >
>
> Show error counters after ftping. (netstat -I hme0).
>
> See dmesg. Whether there are messages like this?
>
> hme0: error signaled, status=0x3030101
> hme0: error signaled, status=0x20001
> hme0: error signaled, status=0x30001

one from before I re-negotiated the link:
	hme0: error signaled, status=0x3000400

from that time there are collisions on the interface but no new
and no if{In,Out}Errors but

bz at pizza:~> netstat -I hme0
Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
hme0   1500 <Link#1>      08:00:20:e7:cc:b0    87406     0    83313     0  1363
hme0   1500 62.111.66/27  62.111.66.8          83895     -    83267     -     -
hme0   1500 fe80:1::a00:2 fe80:1::a00:20ff:       16     -       27     -     -

... ftp putting 5x 10M ...

bz at pizza:~> netstat -I hme0
Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
hme0   1500 <Link#1>      08:00:20:e7:cc:b0    87421     0    83328     0  1363
hme0   1500 62.111.66/27  62.111.66.8          83910     -    83282     -     -
hme0   1500 fe80:1::a00:2 fe80:1::a00:20ff:       16     -       27     -     -


I had been able to test things with an additional xl0
in the sparc last hour;
same results: 7-8MBit/s RX but only 3-4Mbit/s TX.


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT