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Issue 4/5 - LDP vs. RSVP-TE for MPLS LSPs no solution perfect LDP lack of TE, no bandwidth associated with LSPs QoS mechanisms limited perhaps too many bytes for an ATM packet RSVP-TE lack of scalability however LDP used in many RFC 2547 VPNs scalable RSVP-TE TE allows bandwidth assignment to LSPs QoS mechanisms |