Validation
R1#sh track
TRACK Id: 1
IP SLA 1 reachability
Reachability is UP
4 changes, last change : 2019 Mar 14 14:53:47
R1#sh ip route track-table
ip route 3.3.3.0 255.255.255.0 2.2.2.2 track 1 state is [up]
ip route 6.6.6.0 255.255.255.0 2.2.2.2 track 1 state is [up]
R1#sh ip route
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
* - candidate default
IP Route Table for VRF "default"
C 1.1.1.0/24 is directly connected, xe1, 00:55:39
C 2.2.2.0/24 is directly connected, ce52, 00:55:38
S 3.3.3.0/24 [1/0] via 2.2.2.2, ce52, 00:00:03
C 4.4.4.0/24 is directly connected, xe45, 00:49:50
S 5.5.5.0/24 [1/0] via 4.4.4.2, xe45, 00:08:12
S 6.6.6.0/24 [1/0] via 2.2.2.2, ce52, 00:00:03
C 127.0.0.0/8 is directly connected, lo, 6d23h24m
Gateway of last resort is not set
RTR2
=========================
R2#sh running-config interface ce52
!
interface ce52
ip address 2.2.2.2/24
!
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int ce52
R2(config-if)#no ip address
R2(config-if)#commit
R1#sh ip route track-table 2019 Mar 14 14:55:14.350 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_THRESHOLD_CROSSED_2]: IP SLA 1, response packet 15 exceeds the threshold 10000 ms
2019 Mar 14 14:55:14.351 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_TIMEOUT_2]: IP SLA 1, response packet 15 exceeds the timeout 10000 ms
2019 Mar 14 14:55:14.351 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_DISCONNECT_2]: Stopping IP SLA measurement for sla(1) as timeout(10000) observed for packet(15)
ip route 3.3.3.0 255.255.255.0 2.2.2.2 track 1 state is [down]
ip route 6.6.6.0 255.255.255.0 2.2.2.2 track 1 state is [down]
R1#sh track
TRACK Id: 1
IP SLA 1 reachability
Reachability is DOWN
5 changes, last change : 2019 Mar 14 14:55:14
R1#2019 Mar 14 14:55:19.352 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_THRESHOLD_CROSSED_2]: IP SLA 1, response packet 16 exceeds the threshold 10000 ms
2019 Mar 14 14:55:19.353 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_TIMEOUT_2]: IP SLA 1, response packet 16 exceeds the timeout 10000 ms
2019 Mar 14 14:55:19.353 : R1 : OAM : CRITI : [IPSLA_ICMP_ECHO_DISCONNECT_2]: Stopping IP SLA measurement for sla(1) as timeout(10000) observed for packet(16)
sh ip route
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
* - candidate default
IP Route Table for VRF "default"
C 1.1.1.0/24 is directly connected, xe1, 00:56:16
C 2.2.2.0/24 is directly connected, ce52, 00:56:15
C 4.4.4.0/24 is directly connected, xe45, 00:50:27
S 5.5.5.0/24 [1/0] via 4.4.4.2, xe45, 00:08:49
S 6.6.6.0/24 [10/0] via 4.4.4.2, xe45, 00:00:07
C 127.0.0.0/8 is directly connected, lo, 6d23h24m
Gateway of last resort is not set
R1#ping 6.6.6.6
Press CTRL+C to exit
PING 6.6.6.6 (6.6.6.6) 56(84) bytes of data.
64 bytes from 6.6.6.6: icmp_seq=1 ttl=63 time=0.713 ms
64 bytes from 6.6.6.6: icmp_seq=2 ttl=63 time=0.658 ms
64 bytes from 6.6.6.6: icmp_seq=3 ttl=63 time=0.531 ms
64 bytes from 6.6.6.6: icmp_seq=4 ttl=63 time=0.505 ms
sh ip route database
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
> - selected route, * - FIB route, p - stale info
IP Route Table for VRF "default"
C *> 1.1.1.0/24 is directly connected, xe1, 00:56:58
C *> 2.2.2.0/24 is directly connected, ce52, 00:56:57
S 3.3.3.0/24 [1/0] via 2.2.2.2, ce52, 00:01:22
C *> 4.4.4.0/24 is directly connected, xe45, 00:51:09
S *> 5.5.5.0/24 [1/0] via 4.4.4.2, xe45, 00:09:31
S *> 6.6.6.0/24 [10/0] via 4.4.4.2, xe45, 00:00:49
S 6.6.6.0/24 [1/0] via 2.2.2.2, ce52, 00:01:22
C *> 127.0.0.0/8 is directly connected, lo, 6d23h25m
R1#sh ip sla summary
IP SLA Operation Summary
Codes: * active, ^ inactive
ID Type Destination Stats Return Last
(usec) Code Run
-------------------------------------------------------------------
*1 icmp-echo 2.2.2.2 14000 OK 2019 Mar 14 14:56:26
RTR2(5014)
===========================================
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int ce52
R2(config-if)#ip address 2.2.2.2/24
R2(config-if)#commit
R1#sh track
TRACK Id: 1
IP SLA 1 reachability
Reachability is UP
10 changes, last change : 2019 Mar 14 14:56:32
R1#sh ip route track-table
ip route 3.3.3.0 255.255.255.0 2.2.2.2 track 1 state is [up]
ip route 6.6.6.0 255.255.255.0 2.2.2.2 track 1 state is [up]
R1#sh ip route
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
* - candidate default
IP Route Table for VRF "default"
C 1.1.1.0/24 is directly connected, xe1, 00:57:39
C 2.2.2.0/24 is directly connected, ce52, 00:57:38
S 3.3.3.0/24 [1/0] via 2.2.2.2, ce52, 00:00:11
C 4.4.4.0/24 is directly connected, xe45, 00:51:50
S 5.5.5.0/24 [1/0] via 4.4.4.2, xe45, 00:10:12
S 6.6.6.0/24 [1/0] via 2.2.2.2, ce52, 00:00:11
C 127.0.0.0/8 is directly connected, lo, 6d23h26m
R1#sh ip route database
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
> - selected route, * - FIB route, p - stale info
IP Route Table for VRF "default"
C *> 1.1.1.0/24 is directly connected, xe1, 01:14:49
C *> 2.2.2.0/24 is directly connected, ce52, 01:14:48
S *> 3.3.3.0/24 [1/0] via 2.2.2.2, ce52, 00:17:21
C *> 4.4.4.0/24 is directly connected, xe45, 01:09:00
S *> 5.5.5.0/24 [1/0] via 4.4.4.2, xe45, 00:27:22
S *> 6.6.6.0/24 [1/0] via 2.2.2.2, ce52, 00:17:21
S 6.6.6.0/24 [10/0] via 4.4.4.2, xe45, 00:17:25
C *> 127.0.0.0/8 is directly connected, lo, 6d23h43m