track 1 rtr 1 reachability issue

[atul.kumar323]

Hi Experts,

I am badly in need of help and i will really appreciate your expert opinions.

I am trying to configure IP SLA for the redundancy. The issue is the command " track 1 rtr 1 reachability " is not working on the router.

I am using cisco 1921 router having the latest IOS version c1900-universalk9-mz.spa.153-3.m. bin and i have installed the data pack license as well.

I am still not able to get this command.

Is there any other way of assigning particular SLA number to the track command.

I am trying to use the following configuration

ip sla monitor 10

type echo protocol ipIcmpEcho 121.90.1.1

timeout 2000

threshold 2000

frequency 10

ip sla monitor schedule 10 life forever start-time now

!

track 10 rtr 10 reachability

!

interface Vlan10

description ADMIN

ip address x.x.x.x 255.255.255.224

standby 1 ip x.x.x.x

standby 1 priority 105

standby 1 preempt

standby 1 track 10 decrement 11

[Peter Paluch]

Atul,

What do you mean by saying that the command is not working? Is it accepted but having no effect, or is it not accepted in the configuration at all?

On recent IOSes, you should use track 1 ip sla instead of track 1 rtr command.

Best regards,

Peter

[atul.kumar323]

Hi Peter,

Sorry, my bad. I should have mentioned it properly. The command is not accpeted in the configuration at all.

I will try this command track 1 ip sla.

Thanks for the prompt reply. Much appreciated.

Regards

Atul

[Sandeep Choudhary]

Here is the detail explanation of , how to use IP SLA:

Example:

sample configuration of IP SLA to generate icmp ping

R1(config)# ip sla 1

R1(config)#icmp-echo 2.2.2.2 source-interface FastEthernet0/0

R1(config)# timeout 1000

R1(config)#threshold 2

R1(config)# frequency 3

R1(config)# ip sla schedule 1 life forever start-time now

next step is to define an object that tracks the SLA probe

R1(config)# track 1 ip sla 1 reachability

To verify the track status use the use the “show track” command as shown below:

R1# show track

Track 1
IP SLA 1 reachability
Reachability is Down
1 change, last change 00:03:19
Latest operation return code: Unknown

The Last step in the IP SLA  Reliable Static Route configuration is to add the “track” statement to  the default routes pointing to the ISP routers as shown below:

R1(config)# ip route 0.0.0.0 0.0.0.0 2.2.2.2 track 1
R1(config)# ip route 0.0.0.0 0.0.0.0 3.3.3.3 10

The track number keyword and argument combination  specifies that the static route will be installed only if the state of  the configured track object is up. Hence if the track status is down the  secondary route will be used to forward all the traffic.

Hope it will help you to troubleshoot your problem.

Regards

[atul.kumar323]

Hi Sandeep,

My customer's network is a bit different. I dont have R1 in my network. I am using two routers connecting to the ISP and provide redundancy through BGP on ISP end and HSRP-SLA through the CPE's end.

However, your detailed explanation is very helpful and gives me a lot more understanding with the commands for the future use.

Thank you very much for the help.

Regards

Atul