[f-nsp] Preserving double-tagged traffic on ICX6100

[Igor Ybema]

>
> Any reason why is this happening?  Why is the switch doing anything with the
> inner tag?

What is your switch config?
I haven't had my hands on a ICX yet however it looks indeed like
something is wrong.
However maybe some tips could help... did you check jumbo-frames,
super-aggregated vlan support etc? Could you try with another tag-type
for the outer-vlan? I prefer using it that way (different tag-types
for inner and outer vlan).

regards, Igor