Which two statements are true regarding the CSPF algorithm? (Choose two.)
A.
The selected path for a given LSP is passed to the TED in the form of an ERO.
B.
LSPs with lower numerical setup priorities are computed before LSPs with higher setup priority values.
C.
The selected path for a given LSP is passed to RSVP in the form of an ERO.
D.
LSPs with higher numerical setup priorities are computed before LSPs with lower setup priority values.
Explanation:
The CSPF algorithm first calculates the highest-priority LSP (the one with the lowest setup priority value).
Do I need to enable CSPF to control where to send my traffic? The answer is no. You can manually configure
an Explicit Route Objects (ERO) list, and let RSVP doing the job. In the presence of the ERO object, the RSVP
Path messages will follow the path specified, thus the Resv messages carrying the labels in the opposite
direction.
https://www.netflask.net/jnpr-constrained-shortest-path-first/