It seems to have a hard 6Gb cap.  I don't run anything special, it's just basically a really fast NAT firewall.  I hoped that they would let it go all the way to the interface speed and cut it down if you are using a lot of features. ... View more

Not clear what your end goal is here. On the MX250 you can plug in your two internet connections using SFP or SFP+ optics (or copper if that's how you roll).  In the dashboard under Security-SDWan you can go to "Traffic shaping"   Scroll down and you can set the primary wan link and disable load balancing.   With LB disabled all traffic (regardless of VLAN) will go out the specified primary circuit (WAN1 or WAN2) and will only go to the other one during a failover of the primary. If you want the different VLANs to go out different circuits, further down the page is "Flow preferences" where you can specify the circuit you want to use for each subnet.  This is the way I do it, for a couple of low-priority uses like guest access I set up a flow preference to send that entire subnet (ie: 192.168.1.0/24) out WAN2 while everyone else defaults to WAN1. ... View more