多项选择题

A.The router is in area 49.0001.0002
B.The router acts as a Level 1 - 2 router
C.CLNS routing is enable d for the router
D.The router has a system ID of 0003.0004
E.The interfaces have a functional IS - IS configuration
F.The network service access point selector (NSEL) byte has a value of 0