Can you mix different versions of infiniband in the same network?
We have a setup using QDR (connectx, connectx3 and connectx4 with a voltaire 4036 toplevel switch). We’re looking to buy a new enclosure with EDR and I was wondering how we can integrate both of them. Can we simply connect the EDR switch in the enclosure into our current QDR toplevel switch? And what does the mean for the speed? Will the EDR blade be able to talk EDR to each other or will everything scale down to QDR?
Maybe I’m not looking hard enough but I don’t seem to be able to find any documentation on this?
In terms of the IBA spec, it is optional as to what link speeds are supported (other than SDR). You can tell by smpquery portinfo for one of the switch external/physical ports.
If you are talking about Mellanox EDR switch, it supports QDR as well as some other speeds (like FDR and FDR10).