多选题What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)Ato perform a label push operationBto track the status of signaled LSPsCto perform longest-match route lookupsDto reserve resources, such as labels and path information
多选题
What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)
A
to perform a label push operation
B
to track the status of signaled LSPs
C
to perform longest-match route lookups
D
to reserve resources, such as labels and path information
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