Lable allocation mode per interface and per platform mode
I am a begineer in MPLS and have been preparing for my CCIE lab, my friend happened to raise a questions which raised my curiosity and wish somebody could clarify.
Out of this label distribution mode per platform and per interface mode, the per platfor mode where one single label is assigned to a destination network and announced to all neighbors and valid on all local interfaces. Whereas Per-interface label allocation mode where local labels are assigned to IP destination prefixes on a per-interface basis. These labels must be unique on a per-interface basis.
The Advantage of using per platform is quicker label exchange and lesser label usage, and DisAdvantage as label spoofing where adjacent router can send a labeled packet with a label that has not been previously advertised to this router.
So is that why per interface used to avoid spoofing or is there any other usage of per interface allocation in frame mode