ā08-22-2013 07:09 AM - edited ā03-01-2019 11:12 AM
Hi everybody,
I am confuse software VM-FEX and hardware VM-FEX.
Does the software VM-FEX is Emulated mode and hardware VM-FEX is VMdirectpath mode?
If i design a VM-FEX, is there must have nexus 1000V or not ?
Is Nexus 1000V and VM-FEX must work together or select one of them?
ā08-23-2013 03:14 AM
Have a look at http://keepingitclassless.net/2013/06/cisco-vm-fex-and-the-nexus-1000v/
VM-FEX in hardware requires on the host side a VIC adaptor, and a UCS FI or N5k as a switch (and control plane)
VM-FEX in hardware has 2 submodes (PTS = Emulated Mode) and UPS (path Through)
VM-FEX makes use of the VEM module (same as N1K; it is operated in a different mode however)
VEM can do N1k local switching or VM-FEX path through, but not both !
ā08-25-2013 02:00 AM
Hi Wdey,
Thank you for your answer.
So what is VM-FEX in software mode ?
ā09-16-2013 07:35 AM
If you are interested in the performance impact of VM-FEX, specially SAP, see
Walter.
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