Junos OS

Unable to failover to ISP2 in case isp1 is down here is the config. Can you please help on how to get this working?

"set groups node0 system host-name srx-a
set groups node0 interfaces fxp0 unit 0 family inet address 172.16.2.5/24
set groups node1 system host-name srx-b
set groups node1 interfaces fxp0 unit 0 family inet address 172.16.2.6/24
set apply-groups "${node}"
set chassis cluster reth-count 4
set chassis cluster redundancy-group 0 node 0 priority 200
set chassis cluster redundancy-group 0 node 1 priority 100
set chassis cluster redundancy-group 1 node 0 priority 200
set chassis cluster redundancy-group 1 node 1 priority 100
set chassis cluster redundancy-group 1 preempt
set chassis cluster redundancy-group 1 interface-monitor ge-0/0/2 weight 128
set chassis cluster redundancy-group 1 interface-monitor ge-5/0/2 weight 128
set chassis cluster redundancy-group 1 interface-monitor ge-0/0/3 weight 128
set chassis cluster redundancy-group 1 interface-monitor ge-5/0/3 weight 128
set interfaces fab0 fabric-options member-interfaces ge-0/0/0
set interfaces fab1 fabric-options member-interfaces ge-5/0/0
set interfaces ge-0/0/2 gigether-options redundant-parent reth0
set interfaces ge-5/0/2 gigether-options redundant-parent reth0
set interfaces ge-0/0/3 gigether-options redundant-parent reth1
set interfaces ge-5/0/3 gigether-options redundant-parent reth1
set interfaces ge-0/0/4 gigether-options redundant-parent reth2
set interfaces ge-5/0/4 gigether-options redundant-parent reth2
set interfaces ge-0/0/5 gigether-options redundant-parent reth3
set interfaces ge-5/0/5 gigether-options redundant-parent reth3
set interfaces reth0 redundant-ether-options redundancy-group 1 
set interfaces reth0 unit 0 family inet address 192.168.2.194/24 
set interfaces reth1 redundant-ether-options redundancy-group 1
set interfaces reth1 unit 0 family inet address 192.168.99.199/24
set interfaces reth2 redundant-ether-options redundancy-group 1
set interfaces reth2 unit 0 family inet filter input fbf-isp
set interfaces reth2 unit 0 family inet address 172.16.22.1/23
set interfaces reth3 redundant-ether-options redundancy-group 1
set interfaces reth3 unit 0 family inet filter input fbf-isp
set interfaces reth3 unit 0 family inet address 172.16.29.1/24
set security zones security-zone Untrusted-ISP1 interfaces reth0.0
set security zones security-zone Untrusted-ISP1 host-inbound-traffic system-services ping 
set security zones security-zone Untrusted-ISP2 interfaces reth1.0
set security zones security-zone Untrusted-ISP2 host-inbound-traffic system-services ping
set security zones security-zone Trusted interfaces reth2.0
set security zones security-zone Trusted interfaces reth3.0
set security zones security-zone Trusted host-inbound-traffic system-services all
set routing-instances ISP1-RI instance-type virtual-router
set routing-instances ISP1-RI interface reth0.0
set routing-instances ISP1-RI routing-options static route 0.0.0.0/0 next-hop 192.168.2.1
set routing-instances ISP2-RI instance-type virtual-router
set routing-instances ISP2-RI interface reth1.0
set routing-instances ISP2-RI routing-options static route 0.0.0.0/0 next-hop 192.168.99.1
set firewall family inet filter fbf-isp term lan1-to-isp1 from source-address 172.16.22.0/23
set firewall family inet filter fbf-isp term lan1-to-isp1 then routing-instance ISP1-RI
set firewall family inet filter fbf-isp term lan2-to-isp2 from source-address 172.16.29.0/24
set firewall family inet filter fbf-isp term lan2-to-isp2 then routing-instance ISP2-RI
set firewall family inet filter fbf-isp term default then accept
set services rpm probe isp1-probe test ping-isp1 target address 192.168.2.1
set services rpm probe isp1-probe test ping-isp1 probe-count 3
set services rpm probe isp1-probe test ping-isp1 probe-interval 5
set services rpm probe isp1-probe test ping-isp1 test-interval 10
set services rpm probe isp1-probe test ping-isp1 next-hop 192.168.2.1
set services rpm probe isp1-probe test ping-isp1 source-address 192.168.2.194
set services rpm probe isp1-probe test ping-isp1 routing-instance ISP1-RI
set services rpm probe isp1-probe test ping-isp1 thresholds successive-loss 3
set services rpm probe isp2-probe test ping-isp2 target address 192.168.99.1
set services rpm probe isp2-probe test ping-isp2 probe-count 3
set services rpm probe isp2-probe test ping-isp2 probe-interval 5
set services rpm probe isp2-probe test ping-isp2 test-interval 10
set services rpm probe isp2-probe test ping-isp2 next-hop 192.168.99.1
set services rpm probe isp2-probe test ping-isp2 source-address 192.168.99.199
set services rpm probe isp2-probe test ping-isp2 routing-instance ISP2-RI
set services rpm probe isp2-probe test ping-isp2 thresholds successive-loss 3
set security nat source pool ISP1-Pool address 192.168.2.194/32
set security nat source pool ISP2-Pool address 192.168.99.199/32
set security nat source rule-set Trusted-NAT-ISP1 from zone Trusted
set security nat source rule-set Trusted-NAT-ISP1 to zone Untrusted-ISP1
set security nat source rule-set Trusted-NAT-ISP1 rule corp-to-inet1 match source-address 172.16.22.0/23
set security nat source rule-set Trusted-NAT-ISP1 rule corp-to-inet1 match destination-address 0.0.0.0/0
set security nat source rule-set Trusted-NAT-ISP1 rule corp-to-inet1 then source-nat pool ISP1-Pool
set security nat source rule-set Trusted-NAT-ISP1 rule guest-to-inet1 match source-address 172.16.29.0/24
set security nat source rule-set Trusted-NAT-ISP1 rule guest-to-inet1 match destination-address 0.0.0.0/0
set security nat source rule-set Trusted-NAT-ISP1 rule guest-to-inet1 then source-nat pool ISP1-Pool
set security nat source rule-set Trusted-NAT-ISP2 from zone Trusted
set security nat source rule-set Trusted-NAT-ISP2 to zone Untrusted-ISP2
set security nat source rule-set Trusted-NAT-ISP2 rule corp-to-inet2 match source-address 172.16.22.0/23
set security nat source rule-set Trusted-NAT-ISP2 rule corp-to-inet2 match destination-address 0.0.0.0/0
set security nat source rule-set Trusted-NAT-ISP2 rule corp-to-inet2 then source-nat pool ISP2-Pool
set security nat source rule-set Trusted-NAT-ISP2 rule guest-to-inet2 match source-address 172.16.29.0/24
set security nat source rule-set Trusted-NAT-ISP2 rule guest-to-inet2 match destination-address 0.0.0.0/0
set security nat source rule-set Trusted-NAT-ISP2 rule guest-to-inet2 then source-nat pool ISP2-Pool
set security policies from-zone Trusted to-zone Untrusted-ISP1 policy allow-all match source-address any
set security policies from-zone Trusted to-zone Untrusted-ISP1 policy allow-all match destination-address any
set security policies from-zone Trusted to-zone Untrusted-ISP1 policy allow-all match application any
set security policies from-zone Trusted to-zone Untrusted-ISP1 policy allow-all then permit
set security policies from-zone Trusted to-zone Untrusted-ISP2 policy allow-all match source-address any
set security policies from-zone Trusted to-zone Untrusted-ISP2 policy allow-all match destination-address any
set security policies from-zone Trusted to-zone Untrusted-ISP2 policy allow-all match application any
set security policies from-zone Trusted to-zone Untrusted-ISP2 policy allow-all then permit
set event-options policy isp1-fail events rpm-probe-failure
set event-options policy isp1-fail attributes-match rpm-probe-failure.test-owner matches isp1-probe
set event-options policy isp1-fail then change-configuration commands "delete firewall family inet filter fbf-isp term lan1-to-isp1 then routing-instance ISP1-RI"
set event-options policy isp1-fail then change-configuration commands "set firewall family inet filter fbf-isp term lan1-to-isp1 then routing-instance ISP2-RI"
set event-options policy isp1-fail then change-configuration commands "commit"
set event-options policy isp1-recover events rpm-probe-recovery
set event-options policy isp1-recover attributes-match rpm-probe-recovery.test-owner matches isp1-probe
set event-options policy isp1-recover then change-configuration commands "delete firewall family inet filter fbf-isp term lan1-to-isp1 then routing-instance ISP2-RI"
set event-options policy isp1-recover then change-configuration commands "set firewall family inet filter fbf-isp term lan1-to-isp1 then routing-instance ISP1-RI"
set event-options policy isp1-recover then change-configuration commands "commit"
set event-options policy isp2-fail events rpm-probe-failure
set event-options policy isp2-fail attributes-match rpm-probe-failure.test-owner matches isp2-probe
set event-options policy isp2-fail then change-configuration commands "delete firewall family inet filter fbf-isp term lan2-to-isp2 then routing-instance ISP2-RI"
set event-options policy isp2-fail then change-configuration commands "set firewall family inet filter fbf-isp term lan2-to-isp2 then routing-instance ISP1-RI"
set event-options policy isp2-fail then change-configuration commands "commit"
set event-options policy isp2-recover events rpm-probe-recovery
set event-options policy isp2-recover attributes-match rpm-probe-recovery.test-owner matches isp2-probe
set event-options policy isp2-recover then change-configuration commands "delete firewall family inet filter fbf-isp term lan2-to-isp2 then routing-instance ISP1-RI"
set event-options policy isp2-recover then change-configuration commands "set firewall family inet filter fbf-isp term lan2-to-isp2 then routing-instance ISP2-RI"
set event-options policy isp2-recover then change-configuration commands "commit"
"