89、which two statements about BGP PIC are true? (choose two)
PIC CORE SUPPORTS FAST CONVERGENCE WITH EXTERNAL NEIGHBOR LINKS.
IT IS PREFIX-DEPENDENT FOR INTERNET ROUTES
WHEN THE PATH TO A DISTANT PE ROUTER CHANGES, PIC IS INDEPENDENT OF THE NUMBER OF VRFS ON THE ROUTER.
IT ACHIEVES SUBSECOND CONVERGENCE IN THE BGP FIB
PIC EDGE PROVIDES FAST CONVERGENCE WHEN AN EXTERNAL NEIGHBOR NODE FAILS.
