多项选择题

A. LSPs are bidirectional.B. LSPs are unidirectional.C.……

Which three statements about Label-Switched Paths （LSPs） are true？（）

A. LSPs are bidirectional.
B. LSPs are unidirectional.
C. LSPs can be signaled by CAC.
D. LSPs can be configured explicitly.
E. LSPs can be configured dynamically.

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