On 20-Dec-19 12:01, Robert Raszuk wrote:
>> And where is it forwarded to, since we are already at the DA?
>
> PSP operates at the n-1 segment end of the SR path so naturally after
> swapping DA it is forwarded to the segment end. Note that we are all along
> operating on the encapsulated header ... original packet including its
> original IPv6 header is sitting as passenger here.
>
> So last segment here will received encapsulated IPv6 packet will decapsulate
> it and fwd based on the original DA.
>
> Seems very simple :)
Right, but the language in the PSP sub-section does not talk about
decapsulation. I think the root problem may be using the word "pop", which is
relevant in the MPLS label stack context but not here, without additional
definition.
Brian
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