A.Class-based Model B.Maximum Allocation Model C.Russian Doll Model D.Global Tunnel Model E.Policy-based Model
A.AFI is 2, SAFI is 128 B.AFI is 1, SAFI is 64 C.AFI is 2, SAFI is 64 D.AFI is 1, SAFI is 96 E.AFI is 2, SAFI is 96 F.AFI is 1, SAFI is 128
A.asynchronous response mode (ARM) B.normal peer mode (NPM) C.asynchronous balanced mode (ABM) D.normal response mode (NRM) E.asynchronous client mode (ACM)