In MPLS networks, what is the benefit of disabling TTL propagation?
A.
to provide a visible extension of MPLS TTL functionality in a non-MPLS-enabled domain
B.
to improve MPLS convergence time
C.
to hide visibility to the core (provider) routers in the MPLS network
D.
to provide a visible extension of IP TTL functionality in an MPLS-enabled domain
E.
to improve the IGP convergence time