- Cisco Propetiary
- elects gateway based on highest priority 100 is default 255 is maximum tie breaker is highest ip
- default is no preempt
- uses udp multicast 224.0.0.2 (all routers) on port 1985
- arp response contains virtual mac of 0000.0c07.acxx where xx is the group number
- can user clear text or md5 authentication
- default hello is 3 and dead 10
- speak router is router that is not elected primary or standby
- 256 hrsp groups is the limit
- It does not support ddr
- standby use bia - uses the burnt in address of the switch instead of the well known mac
- NAT is supported but can have issues when standy takes over as state table is not maintained
- In radius and tacas hrsp routers appear as 1 and the primary sends info to radius server
- it is not possible to track a gre interface
- it is possible to run hrsp for primary and secondary subnet
- hrspv2 support millisecond timers
- there is 255 groups in v1 there 4095 in v2
- hrspv2 uses a different mac 000.0c95.Fyyy where y is the group
- hrspv2 multicast to 224.0.0.12
- Supports multiple groups per interface so we can have a few groups configured and potential load balance
- can integrate with ip sla via enhance object tracking
- technically standby only needs to be configured on standby router but it should be configured on both for when the primary route comes back avalible
Initial
Listen
Speak
Standby
Active
Commands
int fa0/0
standby 1 ip 155.0.0.1
standby 1 preempt
standby 1 priority 120
standby version 1/2
sh standby
LAB
Ok so for the lab r1 will be end host with default gateway of 155.0.146.254 r4 and r6 will
use hrsp with the 155.0.146.254 being virtual default gateway
---
so i am setting r1 not to do routing and to have a default gateway of 155.0.146.254
r1#config t
Enter configuration commands, one per line. End with CNTL/Z.
r1(config)#no ip routing
*Mar 1 02:55:51.199: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 155.0.146.4
(FastEthernet0/0) is down: interface down
*Mar 1 02:55:51.203: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 155.0.146.6
(FastEthernet0/0) is down: interface down
r1(config)#
r1(config)#ip default-gateway 155.0.146.254
r4
---
i will create an acl
r4(config)#access-list 112 deny eigrp any any
r4(config)#access-list 112 deny pim?
pim
r4(config)#access-list 112 deny pim any any
r4(config)#access-list 112 permit ip any any
this will be applied to our debug to keep it cleaner
r4#debug ip packet detail 112
IP packet debugging is on (detailed) for access list 112
r4#
r4#debug standby
HSRP debugging is on
r4#config t
Enter configurat
r4(config)#int fa0/1
r4(config-if)#standby 10 ip 155.0.146.254
r4(config-if)#
*Feb 25 10:14:46.535: HSRP: Fa0/1 Starting minimum interface delay (1 secs)
*Feb 25 10:14:46.535: HSRP: Fa0/1 Grp 10 Disabled -> Init
*Feb 25 10:14:46.535: HSRP: Fa0/1 Grp 10 Redundancy "hsrp-Fa0/1-10" state Disabled -> Init
*Feb 25 10:14:46.539: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" update, Disabled -> Init
*Feb 25 10:14:46.539: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" added
*Feb 25 10:14:47.535: HSRP: Fa0/1 Interface min delay expired
*Feb 25 10:14:47.535: HSRP: Fa0/1 Grp 10 Init: a/HSRP enabled
*Feb 25 10:14:47.535: HSRP: Fa0/1 Grp 10 Init -> Listen
*Feb 25 10:14:47.535: HSRP: Fa0/1 Grp 10 Redundancy "hsrp-Fa0/1-10" state Init -> Backup
*Feb 25 10:14:47.535: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" update, Init -> Backup
*Feb 25 10:14:47.535: HSRP: Fa0/1 Redirect adv out, Passive, active 0 passive 1
*Feb 25 10:14:47.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 44,
sending broad/multicast
*Feb 25 10:14:47.535: UDP src=1985, dst=1985
*Feb 25 10:14:53.571: IP: s=155.0.146.1 (FastEthernet0/1), d=224.0.0.1, len 28, rcvd 0,
proto=2
*Feb 25 10:14:57.535: HSRP: Fa0/1 Grp 10 Listen: c/Active timer expired (unknown)
*Feb 25 10:14:57.535: HSRP: Fa0/1 Grp 10 Listen -> Speak
*Feb 25 10:14:57.535: HSRP: Fa0/1 Grp 10 Redundancy "hsrp-Fa0/1-10" state Backup -> Speak
*Feb 25 10:14:57.535: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" update, Backup -> Speak
*Feb 25 10:14:57.535: HSRP: Fa0/1 Grp 10 Hello out 155.0.146.4 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:14:57.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 48,
sending broad/multicast
*Feb 25 10:14:57.535: UDP src=1985, dst=1985
*Feb 25 10:14:59.667: IP: s=155.0.146.4 (local), d=224.0.1.40 (FastEthernet0/1), len 28,
sending broad/multicast, proto=2
*Feb 25 10:15:00.535: HSRP: Fa0/1 Grp 10 Hello out 155.0.146.4 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:15:00.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 48,
sending broad/multicast
*Feb 25 10:15:00.535: UDP src=1985, dst=1985
*Feb 25 10:15:03.535: HSRP: Fa0/1 Grp 10 Hello out 155.0.146.4 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:15:03.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 48,
sending broad/multicast
*Feb 25 10:15:03.535: UDP src=1985, dst=1985
*Feb 25 10:15:06.535: HSRP: Fa0/1 Grp 10 Hello out 155.0.146.4 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:15:06.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 48,
sending broad/multicast
*Feb 25 10:15:06.535: UDP src=1985, dst=1985
*Feb 25 10:15:07.535: HSRP: Fa0/1 Grp 10 Speak: d/Standby timer expired (unknown)
*Feb 25 10:15:07.535: HSRP: Fa0/1 Grp 10 Standby router is local
*Feb 25 10:15:07.535: HSRP: Fa0/1 Grp 10 Speak -> Standby
*Feb 25 10:15:07.535: %HSRP-5-STATECHANGE: FastEthernet0/1 Grp 10 state Speak -> Standby
*Feb 25 10:15:07.535: HSRP: Fa0/1 Grp 10 Redundancy "hsrp-Fa0/1-10" state Speak -> Standby
*Feb 25 10:15:07.535: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" update, Speak -> Standby
*Feb 25 10:15:07.535: HSRP: Fa0/1 Grp 10 Hello out 155.0.146.4 Standby pri 100 vIP
155.0.146.254
*Feb 25 10:15:07.535: IP: s=155.0.146.4 (local), d=224.0.0.2 (FastEthernet0/1), len 48,
sending broad/multicast
*Feb 25 10:15:07.535: UDP src=1985, dst=1985
*Feb 25 10:15:08.035: HSRP: Fa0/1 Grp 10 Standby: c/Active timer expired (unknown)
*Feb 25 10:15:08.035: HSRP: Fa0/1 Grp 10 Active router is local
*Feb 25 10:15:08.035: HSRP: Fa0/1 Grp 10 Standby router is unknown, was local
*Feb 25 10:15:08.035: HSRP: Fa0/1 Grp 10 Standby -> Active
*Feb 25 10:15:08.035: %HSRP-5-STATECHANGE: FastEthernet0/1 Grp 10 state Standby -> Active
*Feb 25 10:15:08.035: HSRP: Fa0/1 Grp 10 Redundancy "hsrp-Fa0/1-10" state Standby -> Active
*Feb 25 10:15:08.035: HSRP: Fa0/1 Redundancy server "hsrp-Fa0/1-10" update, Standby -> Active
from the output we can see that by enabling hrsp we started sending traffic to 224.0.0.2 (all
routers multicast address on source and destination of 1985 we can see we went from initial
to listen just waiting to see could we hear any other routers on the segment then we went to
speak we generated our hrsp info waiting for an election we then went into standby then into
active.
If both routers on the segement went to active you know that you have some transport issue
underlying the first thing you really should do before config ensure layer 2 connectivity
between all hrsp routers
r6
--
we can see we are recieving the hrsp related packets in
i have enabled
r6#sh run int fa0/0.146
Building configuration...
Current configuration : 149 bytes
!
interface FastEthernet0/0.146
encapsulation dot1Q 146
ip address 155.0.146.6 255.255.255.0
ip pim sparse-mode
standby 10 ip 155.0.146.254
end
Feb 25 10:38:42.475: HSRP: Fa0/0.146 Starting minimum interface delay (1 secs)
*Feb 25 10:38:42.479: HSRP: Fa0/0.146 Grp 10 Disabled -> Init
*Feb 25 10:38:42.479: HSRP: Fa0/0.146 Grp 10 Redundancy "hsrp-Fa0/0.146-10" state Disabled ->
Init
*Feb 25 10:38:42.479: HSRP: Fa0/0.146 Redundancy server "hsrp-Fa0/0.146-10" update, Disabled
-> Init
*Feb 25 10:38:42.479: HSRP: Fa0/0.146 Redundancy server "hsrp-Fa0/0.146-10" added
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Interface min delay expired
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Grp 10 Init: a/HSRP enabled
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Grp 10 Init -> Listen
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Grp 10 Redundancy "hsrp-Fa0/0.146-10" state Init ->
Backup
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Redundancy server "hsrp-Fa0/0.146-10" update, Init ->
Backup
*Feb 25 10:38:43.475: HSRP: Fa0/0.146 Redirect adv out, Passive, active 0 passive 1
*Feb 25 10:38:43.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 44,
sending broad/multicast
*Feb 25 10:38:43.475: UDP src=1985, dst=1985
*Feb 25 10:38:44.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:44.267: UDP src=1985, dst=1985
*Feb 25 10:38:44.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:44.267: HSRP: Fa0/0.146 Grp 10 Active router is 155.0.146.4
*Feb 25 10:38:44.267: HSRP: Fa0/0.146 Redirect adv out, Passive, active 0 passive 1
*Feb 25 10:38:44.267: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 44,
sending broad/multicast
*Feb 25 10:38:44.267: UDP src=1985, dst=1985
*Feb 25 10:38:47.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:47.267: UDP src=1985, dst=1985
*Feb 25 10:38:47.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:48.287: IP: s=155.0.67.1 (FastEthernet0/0.67), d=224.0.1.40, len 28, rcvd 0,
proto=2
*Feb 25 10:38:50.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:50.267: UDP src=1985, dst=1985
*Feb 25 10:38:50.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:50.571: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:50.571: UDP src=1985, dst=1985
*Feb 25 10:38:50.571: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:53.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:53.267: UDP src=1985, dst=1985
*Feb 25 10:38:53.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:53.475: HSRP: Fa0/0.146 Grp 10 Listen: d/Standby timer expired (unknown)
*Feb 25 10:38:53.475: HSRP: Fa0/0.146 Grp 10 Listen -> Speak
*Feb 25 10:38:53.475: HSRP: Fa0/0.146 Grp 10 Redundancy "hsrp-Fa0/0.146-10" state Backup ->
Speak
*Feb 25 10:38:53.475: HSRP: Fa0/0.146 Redundancy server "hsrp-Fa0/0.146-10" update, Backup ->
Speak
*Feb 25 10:38:53.475: HSRP: Fa0/0.146 Grp 10 Hello out 155.0.146.6 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:38:53.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 48,
sending broad/multicast
*Feb 25 10:38:53.475: UDP src=1985, dst=1985
*Feb 25 10:38:56.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:56.267: UDP src=1985, dst=1985
*Feb 25 10:38:56.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:56.475: HSRP: Fa0/0.146 Grp 10 Hello out 155.0.146.6 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:38:56.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 48,
sending broad/multicast
*Feb 25 10:38:56.475: UDP src=1985, dst=1985
*Feb 25 10:38:59.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:38:59.267: UDP src=1985, dst=1985
*Feb 25 10:38:59.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:38:59.475: HSRP: Fa0/0.146 Grp 10 Hello out 155.0.146.6 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:38:59.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 48,
sending broad/multicast
*Feb 25 10:38:59.475: UDP src=1985, dst=1985
*Feb 25 10:39:00.535: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:39:00.535: UDP src=1985, dst=1985
*Feb 25 10:39:00.535: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254u a
*Feb 25 10:39:02.267: IP: s=155.0.146.4 (FastEthernet0/0.146), d=224.0.0.2, len 48, rcvd 0
*Feb 25 10:39:02.267: UDP src=1985, dst=1985
*Feb 25 10:39:02.267: HSRP: Fa0/0.146 Grp 10 Hello in 155.0.146.4 Active pri 100 vIP
155.0.146.254
*Feb 25 10:39:02.475: HSRP: Fa0/0.146 Grp 10 Hello out 155.0.146.6 Speak pri 100 vIP
155.0.146.254
*Feb 25 10:39:02.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 48,
sending broad/multicast
*Feb 25 10:39:02.475: UDP src=1985, dst=1985ll
^
% Invalid input detected at '^' marker.
r6(config-subif)#
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Grp 10 Speak: d/Standby timer expired (unknown)
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Grp 10 Standby router is local
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Grp 10 Speak -> Standby
*Feb 25 10:39:03.475: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Speak -> Standbye
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Grp 10 Redundancy "hsrp-Fa0/0.146-10" state Speak ->
Standby
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Redundancy server "hsrp-Fa0/0.146-10" update, Speak ->
Standby
*Feb 25 10:39:03.475: HSRP: Fa0/0.146 Grp 10 Hello out 155.0.146.6 Standby pri 100 vIP
155.0.146.254
*Feb 25 10:39:03.475: IP: s=155.0.146.6 (local), d=224.0.0.2 (FastEthernet0/0.146), len 48,
sending broad/multicast
*Feb 25 10:39:03.475: UDP src=1985, dst=1985xit
we can see that we go through the states but we will stick at standby realistically if we had
the election we should became hrsp active as we both default priority and r6 has the higher
ip but once a router is online as active there is no election and no preempt by default so
like the ospf dr etc it really comes down to who boots up first
we can see from the
r6#sh standby
FastEthernet0/0.146 - Group 10
State is Standby
1 state change, last state change 00:05:45
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0000.0c07.ac0a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.164 secs
Preemption disabled
Active router is 155.0.146.4, priority 100 (expires in 8.768 sec)
Standby router is local
Priority 100 (default 100)
IP redundancy name is "hsrp-Fa0/0.146-10" (default)
r6#
that we are standby virtual ip is 155.0.146.254 active and local virtual mac is 000.0c07.ac-a
we can see our timers
we can see premption is disabled and our default priority is 100
lets change preempt
r6(config)#int fa0/0.146
r6(config-subif)#standby 10 preempt
Now we have enabled preemption we will not preempt based on highest ip it does not go through
the election process we will only preempt based on priority
r6(config)#int fa0/0.146
r6(config-subif)#standby 10 priority 110
r6(config-subif)#
*Feb 25 10:47:50.263: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Standby -> Active
higher priority is better i configured preemption and higher priority i am now in the active
state
Lets look another command
notice this command is not group specfic like the other commands
r6(config-subif)#int fa0/0.146
r6(config-subif)#standby use-bia
r6#sh standby
FastEthernet0/0.146 - Group 10
State is Active
2 state changes, last state change 00:02:55
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0013.80e4.901a
Local virtual MAC address is 0013.80e4.901a (bia)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.572 secs
Preemption enabled
Active router is local
Standby router is 155.0.146.4, priority 100 (expires in 9.564 sec)
Priority 110 (configured 110)
IP redundancy name is "hsrp-Fa0/0.146-10" (default)
r6#
notice the active virtual mac address has changed to the bia of r6 this is for situation
maybe you have port security you do not want the additional virtual mac on the port
r4
---
r4#sh st
*Feb 25 10:34:05.891: %SYS-5-CONFIG_I: Configured from console by consoleandby
FastEthernet0/1 - Group 10
State is Standby
4 state changes, last state change 00:03:29
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0013.80e4.901a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.432 secs
Preemption disabled
Active router is 155.0.146.6, priority 110 (expires in 9.432 sec)
Standby router is local
Priority 100 (default 100)
IP redundancy name is "hsrp-Fa0/1-10" (default)
r4#
r6
---
r6(config)#int fa0/0.146
r6(config-subif)#shut
r6(config-subif)#
r4
---
r4#sh standby
FastEthernet0/1 - Group 10
State is Active
5 state changes, last state change 00:00:34
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0000.0c07.ac0a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.384 secs
Preemption disabled
Active router is local
Standby router is unknown
Priority 100 (default 100)
IP redundancy name is "hsrp-Fa0/1-10" (default)
r4#
goes back to using the typical hrsp address as we did not configure the command on r4
it will send a arp reply even though it was not requested saying the new mac for
155.0.146.254 is 0000.0c07.ac0a
r6
---
i will bring backup r6 and take off use bia
r6#sh st
*Feb 25 10:57:04.951: %SYS-5-CONFIG_I: Configured from console by consoleandby
FastEthernet0/0.146 - Group 10
State is Active
4 state changes, last state change 00:00:45
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0000.0c07.ac0a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.372 secs
Preemption enabled
Active router is local
Standby router is 155.0.146.4, priority 100 (expires in 7.368 sec)
Priority 110 (configured 110)
IP redundancy name is "hsrp-Fa0/0.146-10" (default)
r6#
one things we notice is the timers are quite high
r6(config)#int f0/0.146
r6(config-subif)#standby 10 timers 1 3
we can change them or we can also use bfd in here ios version my version does not currently
support
Ok I am going make r4 active so preemtion is configured the other
r4
--
on r4 i will enable preemption it is still at the defaul priority of 100 so will not preempt
r4(config)#int fa0/1
r4(config-if)#standby 10 preempt
r6
---
We will looking tracking
r6(config-subif)#int fa0/0.146
r6(config-subif)#standby 10 track fa0/1 120
r6(config-subif)#
so this basically say if r6 int fa0/1 goes down bring down my priority by 120
this would then mean that r6 has lower priority than r4 so r4 would take over as now it has
preempt configured
r6(config)#int fa0/1
r6(config-if)#shut
r6(config-if)#
*Feb 25 11:25:40.375: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Active -> Speak
*Feb 25 11:25:41.655: %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to
administratively down
*Feb 25 11:25:42.655: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1,
changed state to down
*Feb 25 11:25:43.375: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Speak -> Standby
we can see this is indeed what happens
now as we know tracking interface may not be the best way to tell for upstream reachability
just because our local interface is up does not mean the service provider may have internal
issues
so another more used option is tracking with ip sla
so i will just change r6 back
r6(config)#int fa0/1
r6(config-if)#no shut
r6(config-if)#
*Feb 25 11:27:02.875: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Standby -> Active
*Feb 25 11:27:04.767: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
*Feb 25 11:27:05.767: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1,
changed state to u
so bb2 has a loopback of 11.2.2.2
r6#ping 11.2.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 11.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
r6#
which i can reach from r6 so lets use this
r6(config)#ip sla 1
r6(config-ip-sla)#icmp echo 11.2.2.2
r6(config-ip-sla)#icmp-echo 11.2.2.2
r6(config-ip-sla-echo)#frequency 5
r6(config-ip-sla-echo)#timeout 2000
r6(config-ip-sla-echo)#exit
r6(config)#ip sla schedule 1 start-time now life forever
r6(config)#track 2 rtr 1
r6#sh track
Track 2
Response Time Reporter 1 state
State is Up
1 change, last change 00:00:32
Latest operation return code: OK
Latest RTT (millisecs) 1
r6#
r6(config)#int fa0/0.146
r6(config-subif)#standby 10 track 2
r6(config-subif)#standby 10 track 2 decrement 120
at the moment
r6#sh standby
FastEthernet0/0.146 - Group 10
State is Active
10 state changes, last state change 00:07:45
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0000.0c07.ac0a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 1 sec, hold time 3 sec
Next hello sent in 0.032 secs
Preemption enabled
Active router is local
Standby router is 155.0.146.4, priority 100 (expires in 2.008 sec)
Priority 110 (configured 110)
Track interface FastEthernet0/1 state Up decrement 120
Track object 2 state Up decrement 120
IP redundancy name is "hsrp-Fa0/0.146-10" (default)
BB2
---
bb2#config t
Enter configuration commands, one per line. End with CNTL/Z.
bb2(config)#int lo0
bb2(config-if)#shut
bb2(config-if)#
access#5
r6
----
r6#
*Feb 25 11:35:31.895: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Active -> Speak
r6#sh standby
FastEthernet0/0.146 - Group 10
State is Standby
12 state changes, last state change 00:00:27
Virtual IP address is 155.0.146.254
Active virtual MAC address is 0000.0c07.ac0a
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 1 sec, hold time 3 sec
Next hello sent in 0.556 secs
Preemption enabled
Active router is 155.0.146.4, priority 100 (expires in 2.560 sec)
Standby router is local
Priority 0 (configured 110)
Track interface FastEthernet0/1 state Up decrement 120
Track object 2 state Down decrement 120
IP redundancy name is "hsrp-Fa0/0.146-10" (default)
r6#
*Feb 25 11:35:34.895: %HSRP-5-STATECHANGE: FastEthernet0/0.146 Grp 10 state Speak -> Standby
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