We received reports of lost packets on a VM. Our Network group looked at the ports. Our VM vswitch has 2 associated pNICs. Each goes to a separate physical Cisco Switch.
Attached is information for the 2-physical switch ports in question. Note the "output flow control" setting for each and the pause and overun numbers.
- I don't modify pNIC settings at a Host level so it's curious that this "output flow control" setting is different for each.
- Can this setting chnage dynamically?
- Will each pNIC have the default setting set differently depending on model and/or vendor?
- Is there best practice guidance on what this setting should be?
- Any guesses as to if this setting is likely root cause for dropped packet complaints?
