> Here are some examples of translations from OpenFlow to datapath
> actions, the way I would expect them to happen:
>
> OF: 1, clone(truncate(100), push_vlan, 2), 3
> dp: 1, truncate(100), push_vlan, 2, pop_vlan, 3
>
I see your point; the "clone" is handled at translation code, and
pop_vlan is appended before the end of clone.
I was thinking about actually making a copy of the packet, and kernel
sample implementation happens to call 'skb_clone()'.
If using sample,
OF: 1, clone(truncate(100), push_vlan, 2), 3
dp: 1, sample(truncate(100), push_vlan, 2), 3
So the "truncate(100), push_vlan, 2" applies to a copy of skb, no need
to pop_vlan.
William
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