My first post here!
I got 4 B200M3 blades with VIC 1240 and 1280. I have installed vSphere 5.1 on them. The blades are configed with a number of NIC's.
The NIC's get a speed of 20gb full duplex(set on auto negotiation) and i would like to set them to 10gb full duplex. When i try to change it in vSphere i get an error message
"Call "HostNetworkSystem.UpdatePhysicalNicLinkSpeed" for object "networkSystem-1264" on vCenter Server "xxxxxxxxxxxxxx" failed.
Operation failed, diagnostics report: Forcing 1000Mbps or faster may not be supported on this network device, please use auto-negotiation instead"
After some searching it looks like you sometimes have to upgrade vSphere with new drivers to get these things to work?
Anyone got any ideas that can help me?