hi,
when I send IP packets with ttl in IP header is random in range(1-255), and
with all other IP header fields stay not changed
but generated 255 datapath flows each with different ttl value.
of course, i use the action dec_ttl, here is code:
case OFPACT_DEC_TTL:
wc->masks.nw_ttl = 0xff;
my question is: can we optimize the dec_ttl action? only differentiate TTL>1
and TTL <=1?
as we all know, when TTL=0, we should send packet to the controller, and let
it make decision whether we should send icmp error packet out.
when TTL is larger than 1, I think they are no difference, am i right?
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