I am building my lab for the JNCIE. I have two EX4200's but I would like to do more complex switching scenerios that require 4 switches. I have two SRX 650's with the 24 port ethernet modules in the lab. What commands will be missing from the SRX 650 that are available in the EX4200? Obviously, the virtual chasis stuff, but what about the other L2 stuff.