4 -move instructions to modules
6 -load balance forward with algos as modules
7 -LER add hash under label stack
9 -make instructions be RTAs in netlink
10 -add shift to NF, TC and DS instructions
11 -add network namespace instruction
12 -add priority instruction
13 -verify locking for nhlfe and ilm radix (RCU?)
14 -clean up source file documentation
18 -examples mapping EXP to queuing discipline
19 -per ILM or NHLFE locking?