Which technology is not necessary to set up a basic MPLS domain?
A.
IP addressing
B.
an IGP
C.
LDP or TDP
D.
CEF
E.
a VRF
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If by a basic mpls domain they mean vrf-lite then
We need IP addressing so A is not the answer.
Do we need an IGP? Static routing would work so surely B fits the answer.
We certainly don’t need LDP or TDP so C is certainly an answer.
CEF is required so not an answer.
A vrf is required even in vrf-lite. So surely E is NOT the answer.
The stand out one, assuming we run an IGP, is C. We do not need LDP or TDP.
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You do not need a vrf to just run mpls and label switch across a network. Of course you never see it this way because you lose so much functionality.
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