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May have different encaps available
Must have solution to allow for negotiation and preference of encap
AFBR
MGRE
IPsec
V6 transit
core
AFBR
MGRE,L2TPv3
AFBR
L2TPv3
MPLS
V4 island
V4 island
V4 island
L2TPv3
MGRE
IPsec
PPT Version