What is true about disabling TTL propagation into an MPLS domain? (Select all that apply.)
A.
It has to be disabled on all LSR’s in the MPLS path.
B.
The TTL field in the label is set to 0.
C.
The TTL field in the label is not copied into the IP header on egress.
D.
The TTL field in the label is not copied from the TTL field in the IP header on ingress.
Explanation:
Not A: Option A is incorrect as it only needs to be turned off at ingress router.