Hi,

I have some confusion regarding difference between LOCAL and NORMAL action. My 
[current] understanding is LOCAL refers to host's TCP/IP stack while NORMAL 
states "Process packets using traditional non-Openflow Pipeline of the switch".

What I understand from it is that NORMAL action should only be used for packets 
passing through switch while LOCAL for packets with switch IP as their 
destination IP, right?

Now, my question is, what if I setup specify NORMAL action for a packet that 
would've normally gone to the switch host stack? Conversely, what if I specify 
LOCAL action for a packet which wasn't destined for switch? What about packets 
destined for switch but not IP packets, like say, UDLD packets?

I initially thought NORMAL was a superset of LOCAL and meant "fwd or send to 
host stack", but spec seems to restrict NORMAL to just forwarding pipeline and 
make NORMAL/LOCAL apply to mutually exclusive scenarios.

Regards,
Vishal Thapar.
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