ethernet trouble on Dell Poweredge 1850

Vladislav Kyjasko kyyashko at fzu.cz
Fri May 19 06:12:54 CDT 2006


Hi,

 similar effect can cause other host with the same IP in the network.
Could you check it? Just disconnect your PE1850 and ping to it.

Vlad

===> on  Fri, 19 May 2006 08:42:29 +0200  Matthias Fuchs wrote:
> 
> Hi,
> 
> I am having strage trouble with the on-board NICs of a Dell PowerEdge 1850.
> 
> The problems show up in different forms:
> - we get packet loss when doing pings even with very low ping rates
> - when doing a telnet against the Dell box the connection freezes in 
> most cases directly after the first telnet packet ran over the ethernet.
> In some cases we see out-of-order TCP packets while sniffing with ethereal.
> - some other Linux boxes do not have notable problems connecting to the 
> Dell box at all.
> - the problems are most obviously seen from windows clients that try to 
> connect to the Dell Linux box.
> 
> We are running Debian Etch with Linux kernel 2.6.15-1 (e1000 driver
> 6.1.16-k2). We also tested the actual e1000 driver 7.0.33. We also
> reproduced the issue with a 2.4.26 kernel. All the same problems.
> 
> We exchanged the ethernet switch (Netgear GS-108) and tested with
> 100MBit and 1000MBit. Also all cables where renewed.
> 
> As the last test we inserted an Intel PCI-X NIC into the PowerEdge. This
> seems to solve our problem and networking is fine. Might this be a PE
> hardware issue?
> 
> Intel PCI-X Ethernet controller (working fine):
> 
> 0000:03:0b.0 Ethernet controller:
>   Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03)
> 0000:03:0b.1 Ethernet controller:
>   Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03)
> 
> PowerEdge 1850 on-board Ethernet controllers:
> 
> 0000:06:07.0 Ethernet controller:
>   Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05)
> 0000:07:08.0 Ethernet controller:
>   Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05)
> 
> Any idea? What tests should I do? Is it a NIC/hard ware issue or a 
> software issue?
> 
> Matthias
> 



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