Degrading Connectivity

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hello

i have 2 hypervisor 2012r2 vms running under 20012r2 standard host.  host teamed on 4 physical ports (hypervisor mode, switch independent currently) cisco 3750-x switch. 1 vm running sql server 2008r2, other web services access sql server database.  web server accessed 10 windows 8.1 clients running resource intensive sims hit services load data sql server.

so

what has started happening when clients start beating on web server, connection starts degrading.  mean ping using ip address time out (its not performance thing).  vm becomes unresponsive clients (like within minutes).  client not able access host system (which in cases reason client can't access vm).  vm accessible via host hyper vm manager, running, vm ping-able host (so taking physical nic out of equation).

the vms attached 1 vswitch on client.  host shares vswitch.  there 1 team of 4 nics aggregated 1 vswitch using switch independent teaming.

i looking suggestion diagnose problem.

rebooting client restores connection, rebooting host solves problem, , rebooting switch seems solve problem.  however, of these "solutions" cause drop in network traffic , temporary.

thanks

van derrick

hi van,

we may try update drive , disable vmq , check if could resolve issue.

click the following kb, check if similar issue yours:

https://support.microsoft.com/en-us/kb/2986895

best regards,

anne

please remember mark replies answers if , unmark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.



Windows Server  >  Platform Networking



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