Cisco Router Possible HSRP Issues - Out of Sync ??
I have two Cisco 2821 routers with HSRP configured.
On the primary, if I do a "sh standby" I get the same results on all of the interfaces - 1 state change, last state change 1w0d
If I do a "sh standby on the secondary box I get the last state change as 23:16, with each of the interfaces having a different number of state changes ranging from 13 to 45.
The two routers have different uptimes, so there's no surprise that the amount of state changes is only 1 on the primary. However, I have the following questions :
1. On the secondary box, wouldn't you expect the interfaces to have the same state change counts ?
2. Shouldn't the last state change time on the primary and the secondary router agree ?
3. Is it possible for HSRP to get out of sync and, if so, how and under what circumstances ?
Any help would be much appreciated.
TIA
On the primary, if I do a "sh standby" I get the same results on all of the interfaces - 1 state change, last state change 1w0d
If I do a "sh standby on the secondary box I get the last state change as 23:16, with each of the interfaces having a different number of state changes ranging from 13 to 45.
The two routers have different uptimes, so there's no surprise that the amount of state changes is only 1 on the primary. However, I have the following questions :
1. On the secondary box, wouldn't you expect the interfaces to have the same state change counts ?
2. Shouldn't the last state change time on the primary and the secondary router agree ?
3. Is it possible for HSRP to get out of sync and, if so, how and under what circumstances ?
Any help would be much appreciated.
TIA
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Thanks for all the info. That's helped clear things up.
Ethernet0/0 - Group 1
State is Standby
4 state changes, last state change 00:00:11
Virtual IP address is 192.168.0.22
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.912 secs
Preemption enabled
Active router is 192.168.0.21, priority 110 (expires in 9.920 sec)
Standby router is local
Priority 100 (default 100)
Track object 3 state Up decrement 20
IP redundancy name is "hsrp1" (cfgd)
Ethernet0/0 - Group 1
State is Active
2 state changes, last state change 00:12:59
Virtual IP address is 192.168.0.22
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.904 secs
Preemption enabled
Active router is local
Standby router is 192.168.0.20, priority 100 (expires in 7.876 sec)
Priority 110 (configured 110)
Track object 3 state Up decrement 20
IP redundancy name is "hsrp1" (cfgd)