MPLS TTL propagation disabled: does first hop PE router appear in traceroute?
If MPLS TTL propagation is disbabled:
CE1 - PE1 ---many Ps-----PE2 - CE2
and you perform a traceroute from CE1 to CE2
does the first hop PE router (i.e. PE1) appear in the
I would not expect any Ps to appear, of course.
Basically I'm trying to understand: does PE1 decrement the IP TTL
and respond to the traceroute OR does it first MPLS encapsulate, TTL becomes 255,
and decide it need not reply to the traceroute?