An engineer want to ensure that of the PEs are discovery in VPLS discover PS. use signaling and access to across PE router without having manually provision VPLS neighbors. What solution must be implemented?
A. BGP autodiscovery with BGP signalling
B. BGP autodiscovery with LDP signalling
C. H-VPLS with PW-access
D. BGP-based VPLS autodiscovery
Correct Answer: D