I am running VMware server 2 on Ubuntu server 8.10. My VMware server is running several Cisco UC7 (Call Manager) appliances which are connected to a Cisco switch through a VMware bridged interface. On the switch I am getting these errors:
00:31:54: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet1/0/2 (not half duplex), with cucm7a eth0 (half duplex)
I have tried changing all the switch configurations (half/full, auto) and the host (half/full, auto) but this doesn't fix the problem. I have also fixed the Ethernet card hardware in the server using "ethtool" in Ubuntu to 100/full. The interface seems to be working OK (traffic passes), but it is just trying to get rid of these messages...
I read somewhere that this is a problem with the virtual switch inside VMware, but I can't find how to change the duplex settings.
The strange thing is that my Windows hosts in the same VMware server are not reporting any duplex problems. Could that be because they are running VMware tools? I can't install VMware tools in the other hosts as they are locked Linux-based appliances.
Thanks in advance...