xen networking problems

John McMonagle johnm at advocap.org
Thu Jan 10 15:45:15 CST 2008

My Symptoms were not as bad as yours.
Possibly because  it's a newer server and it has newer bios and firmware.

root at fdlxen1:/etc/xen# ethtool -i peth0
driver: bnx2
version: 1.4.51b
firmware-version: 2.9.1
bus-info: 0000:09:00.0

It's working OK now.
I put in
ethtool -K eth0 tx off 
in the network setup for both dom0 and the problem domu.
Curious why.
Not really sure if it was needed in dom0, domu or both.

I also upgraded the bnx2 driver as suggested but it was already working 
before I did it.


AndydnA wrote:
> I have had many problems with Debian and Xen with Broadcom embedded NIC.
> The Broadcom embedded NIC doesn't work at all 
> (zero received/transmitted packets) with the Xen Kernel and the pe1950 
> and pe2950 server.
> The problem is not the Broadcom NIC, but the DELL management function. 
> I hate this function! I spent one week and hundred coffee mug for find 
> the follow work around! :)
> You can search for: "How to disable the management function on 
> Broadcom NetXtreme II BCM5708 NIC" at xensource.
> http://kb.xensource.com/entry.jspa?externalID=66
> From the last year my server are running with Xen 3 without any 
> network problem.
> I don't know if this can help you, but you can try.
> AndydnA
> On 08/gen/08, at 22:20, John McMonagle wrote:
>> Have a  pe2950 using debian etch xen 3,0,3.
>> The network stalls for about 10-40 seconds every time the byte counts on 
>> the domu interface roll over at 4gb.
>> Running X terminals on it and it happens about every 10 minutes.
>> I see there are some issues with the bnx2 driver and xen but the reports 
>> I have seen sound like networking does not work at all after bridging is 
>> started.
>> I think I'll try a new bnx2 driver tonight.
>> Any suggestions etc??
>> John
>> -- 
>> John McMonagle
>> IT Manager
>> Advocap Inc.
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John McMonagle
IT Manager
Advocap Inc.

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