The Arista switches are racked, powered on, and plugged in.  After a very brief discovery process I got the SNMP MIBs for the ports and CPU load (imagine naming your MIBs after the actual port number printed on the outside of the case!!), I found that these switches don’t have the 64-bit packet load counters that the NECs had, so I get to do lots of math.  (Yes, I’m asking Arista, we’ll see.)

OpenDaylight is working quite well, but I do not offhand see how to add rules to it, whether it is running or not.