Exploring the quirks of Network Engineering
Scenario
Active and Standby Router with simple tracking of WAN interface
IOS Config
R1
---
interface GigabitEthernet0/0
ip address 192.168.1.2 255.255.255.0
standby version 2
standby 101 ip 192.168.1.1
standby 101 priority 200
standby 101 preempt
standby 101 name TEST_HSRP
standby 101 track 123 decrement 120
!
track 123 ip sla 1 reachability
!
ip sla 1
icmp-echo 192.168.0.2 source-ip 192.168.0.1
frequency 10
ip sla schedule 1 life forever start-time now
R2
---
interface GigabitEthernet0/0
ip address 192.168.1.3 255.255.255.0
standby version 2
standby 101 ip 192.168.1.1
standby 101 priority 90
standby 101 preempt
standby 101 name TEST_HSRP
XR Config
R1
---
router hsrp
interface GigabitEthernet0/0/0/0
address-family ipv4
hsrp 101 version 2
name TEST_HSRP
preempt
priority 200
address 192.168.1.1
track object TRACK_A_END 120
!
!
!
!
!
interface GigabitEthernet0/0/0/0
ipv4 address 192.168.1.2
!
ipsla
operation 1
type icmp echo
source address 192.168.0.1
destination address 192.168.0.2
!
!
!
!
schedule operation 1
start-time now
life forever
!
!
track TRACK_A_END
type rtr 1 reachability
!
R2
---
router hsrp
interface GigabitEthernet0/0/0/0
address-family ipv4
hsrp 101 version 2
name TEST_HSRP
preempt
priority 90
address 192.168.1.1
!
!
!
!
!
interface GigabitEthernet0/0/0/0
ipv4 address 192.168.1.3
!