| Exam 642-887 | Question id=3267 | MPLS/LDP in a Service Provider IP NGN Environment |
An engineer must automatically copy the IP Prec/DiffServ PHB marking to the EXP bits of the imposed MPLS label on the ingress PE, as well as the MPLS EXP bits to the IP Prec/DiffServ of the egress PE. Which MPLS QoS model is suitable for this requirement?
| A. |
pipe model | |
| B. |
short-pipe model | |
| C. |
uniform model | |
| D. |
uniform pipe model |