tftp server on guest system stalls

Hello,
I have a problem with this configuration:
VPC 2007 (6.0.192.0), host XP prof. SP3, guest: OpenSuse 11.2.
In general this is working fine, I don't even need the boot parameter
noreplace-paravirt any more (was needed with previous Linux versions).
The Linux system is used as development environment for an embedded
Linux-driven device. Sometimes this device needs to boot from a tftp
server, which is provided by the development system. But quite often the
tftp download stalls intermittent; after some seconds the transmission
continues. This does not happen if I use the same Linux on a real pc. I
have logged the network traffic, and found that every time this has
occured, the virtual system does not respond for some seconds, some
other network traffic is shown (different kind, for example nbios name
resolution or arp requests from other systems), than the virtual system
sends an arp request to get the ip number of the embedded system and
than the transmission is resumed.
Any ideas?
Thank you in advance,
regards
Dirk

Unfortunately this is a known issue with our PXE implementation, and
there is no work around that I know of.

Cheers,
Benjamin Armstrong
===========================
Senior Program Manager Lead
Windows Virtualization

Blog: http://blogs.msdn.com/Virtual_PC_Guy
Book: http://tinyurl.com/ysxcbm

This posting is provided "AS IS" with no warranties, and confers no
rights. You assume all risk for your use.

On 12/17/2009 6:43 PM, Dirk Zabel wrote:
> Hello,
> I have a problem with this configuration:
> VPC 2007 (6.0.192.0), host XP prof. SP3, guest: OpenSuse 11.2.
> In general this is working fine, I don't even need the boot parameter
> noreplace-paravirt any more (was needed with previous Linux versions).
> The Linux system is used as development environment for an embedded
> Linux-driven device. Sometimes this device needs to boot from a tftp
> server, which is provided by the development system. But quite often the
> tftp download stalls intermittent; after some seconds the transmission
> continues. This does not happen if I use the same Linux on a real pc. I
> have logged the network traffic, and found that every time this has
> occured, the virtual system does not respond for some seconds, some
> other network traffic is shown (different kind, for example nbios name
> resolution or arp requests from other systems), than the virtual system
> sends an arp request to get the ip number of the embedded system and
> than the transmission is resumed.
> Any ideas?
> Thank you in advance,
> regards
> Dirk