Typically, in SR-TE, only two paths can be configured for a given SR-TE LSP: primary path and secondary path. The primary path is used for normal traffic forwarding, and the secondary path is used as a backup in case the primary path fails. Only one LSP path forwards the traffic at any time.
Questions 5
Based on the exhibit, which of the following statements about fast re-route for flex-algo instance 129 is TRUE?
Options:
A.
Only standard LFA is enabled on router R1; fast re-route is not enabled on router R2.
B.
Only standard LFA is enabled on both routers R1 and R2.
C.
Standard LFA and remote-LFA are enabled on router R1; fast re-route is not enabled on router R2.
D.
Standard LFA and remote-LFA are enabled on router R1; standard LFA and TT-LFA are enabled on router R2.
