You want to ensure your multivendor MPLS core network does not decrease the TTL when using ping and traceroute from IP endpoints. Which configuration parameter satisfies this requirement?
A. no-decrement-ttl, configured on all routers in the path
B. no-decrement-ttl, configured on the ingress router only
C. no-propagate-ttl, configured on all routers in the path
D. no-propagate-ttl, configured on the ingress router only