多选题Which two statements about MPLS label-switched paths (LSPs) are true? （）ALSPs are bidirectional.BLSPs are unidirectional.CLSPs must follow the IGP's shortest path.DLSPs can follow paths other than the IGP's shortest path.
多选题
Which two statements about MPLS label-switched paths (LSPs) are true? （）
A
LSPs are bidirectional.
B
LSPs are unidirectional.
C
LSPs must follow the IGP's shortest path.
D
LSPs can follow paths other than the IGP's shortest path.
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