vnic communication

[cmcina2211]

i have created new Vlans and they are communicating through two vnics (4&5) this is the same on both our site's, here's the question on our uk site all is well and clients can communicate happily;

4-4, 4-5, 5-5 on same and separate hosts

but on our European DC we can only get 4-4 and 5-5 or 4-5 on same host we keep losing communication 4-5 on different hosts, we believe the config is ok (but not to proud to admit mistakes) has anyone else came across this?

ps already went to TAC and they want us to upgrade our fnic and enic drivers 

Any help or suggestions will be greatly recieved 

[Keny Perez]

If you enic and fnic drivers are not at the right level, TAC will always try to make you get to the minimum supported version.  When you say losing communication, you mean that you ping the server and some pings are dropped? Or you means that the management interface of that server becomes completely unresponsive until you do what exactly... ?

-Kenny