I'm designing a network using the MS450-12 as the core, and trying to find out how to connect the MX-250 for the gateway connection (they want a 40gig core network for high speed east-west). According to Cisco - the CVR-QSFP-SFP10G is in the transceiver matrix, so that I can convert a QSFP port to an SFP port, and connect the MX-250 that way.  I'm just confirming if anyone has tried this successfully.   Thank you! ... View more