Given the existing operational network shown in the exhibit, you now want to add a remote site for Customer B to the PE3 router. This change should not have an effect on the existing BGP sessions between the PE routers.Which Layer 3 VPN scaling mechanism allows PE3 to begin receiving Customer B routes?
A.
route origin
B.
route refresh
C.
route reflection
D.
route target filtering
Explanation:
Use of BGP route refresh means that BGP sessions do not have to be
disrupted when adds, moves, or changes to the VPN topology occur
Answer – B
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