DerekStoneman
asked on
Windows 2003 Virtual Server on Hypervisor - Slow Ping Response
I have a Windows 2003 server running as a virtual server on Windows
2008 Hypervisor
SERVER-A consistently pings external destinations at 30-60ms response time
SERVER-B ping response is 2000ms to the same external sites.
How can this be when they are actuallu using the same physical NIC and connection?
NOTE - even though the SERVER-B ping times are 2 seconds the actual ping "Reply from" lines on the screen come up really quick - much quicker than normal ping output.
SERVER-A is 192.168.1.1
SERVER-B is 192.168.1.2 in the same subnet
Only a single physical NIC is enabled on the 2008 server and the Hypervisor Virtual Network Manager has an External LAN linked to this NIC.
The virtual computer only has a single NIC enabled.
A second physical NIC is available on the 2008 server but not currently used.
SERVER-A ping trace
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=52ms TTL=245
Reply from 66.102.11.104: bytes=32 time=95ms TTL=245
Reply from 66.102.11.104: bytes=32 time=57ms TTL=245
Reply from 66.102.11.104: bytes=32 time=39ms TTL=245
Reply from 66.102.11.104: bytes=32 time=41ms TTL=245
Reply from 66.102.11.104: bytes=32 time=38ms TTL=245
Reply from 66.102.11.104: bytes=32 time=67ms TTL=245
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=92ms TTL=245
SERVER-B Ping Trace
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=52ms TTL=245
Reply from 66.102.11.104: bytes=32 time=95ms TTL=245
Reply from 66.102.11.104: bytes=32 time=57ms TTL=245
Reply from 66.102.11.104: bytes=32 time=39ms TTL=245
Reply from 66.102.11.104: bytes=32 time=41ms TTL=245
Reply from 66.102.11.104: bytes=32 time=38ms TTL=245
Reply from 66.102.11.104: bytes=32 time=67ms TTL=245
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=92ms TTL=245
2008 Hypervisor
SERVER-A consistently pings external destinations at 30-60ms response time
SERVER-B ping response is 2000ms to the same external sites.
How can this be when they are actuallu using the same physical NIC and connection?
NOTE - even though the SERVER-B ping times are 2 seconds the actual ping "Reply from" lines on the screen come up really quick - much quicker than normal ping output.
SERVER-A is 192.168.1.1
SERVER-B is 192.168.1.2 in the same subnet
Only a single physical NIC is enabled on the 2008 server and the Hypervisor Virtual Network Manager has an External LAN linked to this NIC.
The virtual computer only has a single NIC enabled.
A second physical NIC is available on the 2008 server but not currently used.
SERVER-A ping trace
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=52ms TTL=245
Reply from 66.102.11.104: bytes=32 time=95ms TTL=245
Reply from 66.102.11.104: bytes=32 time=57ms TTL=245
Reply from 66.102.11.104: bytes=32 time=39ms TTL=245
Reply from 66.102.11.104: bytes=32 time=41ms TTL=245
Reply from 66.102.11.104: bytes=32 time=38ms TTL=245
Reply from 66.102.11.104: bytes=32 time=67ms TTL=245
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=92ms TTL=245
SERVER-B Ping Trace
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=52ms TTL=245
Reply from 66.102.11.104: bytes=32 time=95ms TTL=245
Reply from 66.102.11.104: bytes=32 time=57ms TTL=245
Reply from 66.102.11.104: bytes=32 time=39ms TTL=245
Reply from 66.102.11.104: bytes=32 time=41ms TTL=245
Reply from 66.102.11.104: bytes=32 time=38ms TTL=245
Reply from 66.102.11.104: bytes=32 time=67ms TTL=245
Reply from 66.102.11.104: bytes=32 time=47ms TTL=245
Reply from 66.102.11.104: bytes=32 time=92ms TTL=245
ASKER
Additional information.
I have noticed that this problem only occurs with a 2003 server running virtually.
I have reproduced the same fault on another site that also has a Windows 2003 server running under hypervisor.
On this site there is also a Windows 2008 server running virtually on the same physical server that does not have the slow ping response times.
I have noticed that this problem only occurs with a 2003 server running virtually.
I have reproduced the same fault on another site that also has a Windows 2003 server running under hypervisor.
On this site there is also a Windows 2008 server running virtually on the same physical server that does not have the slow ping response times.
What type of Network do you have installed on the Hyper-V VMs?
ASKER
Revised ping times for Server B
Pasted the same settings in twice.
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=2593ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2596ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2595ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2594ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2595ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2597ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2414ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2596ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2593ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2594ms TTL=245
Pasted the same settings in twice.
Pinging www.l.google.com [66.102.11.104] with 32 bytes of data:
Reply from 66.102.11.104: bytes=32 time=2593ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2596ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2595ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2594ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2595ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2597ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2414ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2596ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2593ms TTL=245
Reply from 66.102.11.104: bytes=32 time=2594ms TTL=245
ASKER
Dariusq - not sure I understand the question.
The Windows 2003 Server VM has a single NIC (Microsoft Virtual Machine Bus Network Adapter)
using Client for Microsoft Networking & TCP/IP protocols
The Windows 2003 Server VM has a single NIC (Microsoft Virtual Machine Bus Network Adapter)
using Client for Microsoft Networking & TCP/IP protocols
If you go to the settings of the VM what type of adapter is installed? Legacy?
ASKER
The adapter was installed using "Network Adapter" as the device type.
I have since changed to "Legacy Network Adapter" and removed the original and the problem seems to have been resolved.
Does that make sense?
I have since changed to "Legacy Network Adapter" and removed the original and the problem seems to have been resolved.
Does that make sense?
ASKER CERTIFIED SOLUTION
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I don't see a difference in the pings.