Synchronizing ESXi time with a Microsoft Domain Controller

Steps to synchronize your ESXi host time with a Microsoft DC here: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1035833

Cisco Troubleshooting Commands for Input/Output Drops

Some common commands that can help troubleshoot packet discards or drops:

#show interface ___

#show interface ___ stats

#show interface ___ switching

#show cef not-cef-switched

#show ip cef switching statistics

#show ip cef switching statistics features

#show ip traffic

#show buffers

and if you suspect an issue with CEF, you can use:

#debug ip cef receive