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douaibei, that is just inflammatory garbage.
PBB/PBB-TE was created because there are serious challenges scaling MPLS (originally an Enterprise technology) to the carrier environment, otherwise why was there an effort to create a T-MPLS standard that recent got sunk?
Yes, PBB/PBB-TE isn't as long in the tooth as MPLS, but there is a fundamental benefit to simply carrying IP over Ethernet instead of IP-over-Ethernet-over-IP-over-Ethernet (PWE over MPLS). Many carriers are asking for it after their MPLS networks ran into scaling challenges.