Network keeps falling

Since the upgrade to ESX4/vSphere4 on some of our 64-bit (Windows 2003) servers, the network seems to drop for a short period of time.

I am at a total loss. Any body have any ideas?

How long lasts the judgment of networking (every 30 minutes)? do you see anything in/var/log/vmkernel every 30 mintues?

Tags: VMware

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