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IP SLA failover

Can someone provide me with a config example of how I could configure IP SLA failover on the switch if10.153.0.2 goes down to faill back on 10.153.2.2? I currently have static route from anything to 10.153.0.2. I have attached an image of my network. Thank you
2015-01-12-13-14-22.jpg
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Shark Attack
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Shark Attack
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1 Solution
 
Don JohnstonInstructorCommented:
What switch?
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Shark AttackNetwork adminAuthor Commented:
the L3 switch on far left, you dont see it?
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Shark AttackNetwork adminAuthor Commented:
it's called R1 i forgot to rename it. The connecting interface is 10.153.0.1 and 10.153.2.1
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Don JohnstonInstructorCommented:
Make and model???
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Shark AttackNetwork adminAuthor Commented:
3725 12.4
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Shark AttackNetwork adminAuthor Commented:
at least thats the image im using in gns3 i know its not a switch
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Don JohnstonInstructorCommented:
If 10.153.0.2 should go down, then the route using that next-hop will be removed from the routing table.

So I would create two static routes using a higher AD on the route using 10.153.2.2 as the next-hop.

ip route 0.0.0.0 0.0.0.0 10.153.0.2
ip route 0.0.0.0 0.0.0.0 10.153.2.2 150

Which means when both links are up, traffic will use the 10.153.0.2 route.  If that link fails, then that route will be removed and all traffic will then take the 10.153.2.2 route.
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Shark AttackNetwork adminAuthor Commented:
I see, so i dont have to create route-maps for this? as long as I have secondary route with higher AD i should be OK
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Don JohnstonInstructorCommented:
Yes. But that assumes the failure will A) occur at R2 or the link to R2 and B) be a detectable failure.

If the failure occurs at the F0/1 interface of R2 or beyond, then it won't failover.
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Shark AttackNetwork adminAuthor Commented:
thank you
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