In the network shown in the figure, OSPF protocol is running between R1, R2, and R3, and OSPF BFD feature is turned on. IBGP neighbor relationship is established between R1 and R3 using loopback…

In the network shown in the figure, OSPF protocol is running between R1, R2, and R3, and OSPF BFD feature is turned on. IBGP neighbor relationship is established between R1 and R3 using loopback interface. If GE0/0/1 interface of R2 is shut down, and BGP neighbor relationship is checked on R1, by default, which of the following is the longest time for R1 BGP neighbor relationship to change from Up state to Down state?