[Xen-users] Problem with Broadcom Corporation NetXtreme II BCM5708 bnx2

[rem@xxxxxxx]

 

Hi,

 

I have a Dell PowerEdge 1950 with two NICs Broadcom NetXtreme II BCM5708 1000Base-T. I installed CentOS 5.1 and Xen 3.0.3 (RPM). One of my virtual machines has Windows 2003 Server. In this virtual machine my NICs appears like “Realtek RTL8139 Family PCI Fast Ethernet NIC”. The problem is that when I ping to other machines sometimes the reply time value is very high:

 

C:>  ping 10.1.1.1

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time=-29815ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time=-298341ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

Reply from 10.1.1.1: bytes=32 time=29382ms TTL=127

Reply from 10.1.1.1: bytes=32 time<1ms TTL=127

 

It important to indicate that the “real” time is good ( approximately between 1 and 2 seconds ). The problem is some applications used this value to monitor some servers and send alarms when time value is high. How you can see some time the reply value is negative.

 

The problem is only with virtual Windows machine.

 

What can I do? Some idea?

 

Thanks a lot for your help

 

Roberto

 

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