Refer to the exhibit. An engineer is monitoring reachability of the configured default routes to ISP1 and ISP2. The default route from ISP1 is preferred if available. How is this issue resolved?
R1
ip sla 100
icmp-echo 10.12.1.254
!
track 10 ip sla 100 reachability
!
ip route 0.0.0.0 0.0.0.0 10.12.1.254 track 10
ip route 0.0.0.0 0.0.0.0 10.13.1.254 10
!
R1#show ip route
--Output Omitted--
Gateway of last resort is 10.13.1.254 to network 0.0.0.0
S* 0.0.0.0/0 [10/0] via 10.13.1.254
10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks C 10.11.1.0/24 is directly connected, GigabitEthernet0/1 L 10.11.1.1/32 is directly connected, GigabitEthernet0/1 C 10.12.1.0/24 is directly connected, GigabitEthernet0/0
L 10.12.1.1/32 is directly connected, GigabitEthernet0/0 C 10.13.1.0/24 is directly connected, GigabitEtheraet0/2 L 10.13.1.1/32 is directly connected, GigabitEthernet0/2