多选题Which two statements are correct regarding MPLS LSP establishment methods?（） (Choose two.)ALDP uses Down Stream On Demand.BRSVP uses Down Stream On Demand.CLDP uses Down Stream Unsolicited.DRSVP uses Down Stream Unsolicited.
多选题
Which two statements are correct regarding MPLS LSP establishment methods?（） (Choose two.)
A
LDP uses Down Stream On Demand.
B
RSVP uses Down Stream On Demand.
C
LDP uses Down Stream Unsolicited.
D
RSVP uses Down Stream Unsolicited.
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