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IP SLA failover

Posted on 2015-01-12
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Last Modified: 2015-01-12
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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Question by:Shark Attack
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10 Comments
 
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Expert Comment

by:Don Johnston
ID: 40545199
What switch?
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Author Comment

by:Shark Attack
ID: 40545200
the L3 switch on far left, you dont see it?
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Author Comment

by:Shark Attack
ID: 40545203
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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Expert Comment

by:Don Johnston
ID: 40545211
Make and model???
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Author Comment

by:Shark Attack
ID: 40545222
3725 12.4
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Author Comment

by:Shark Attack
ID: 40545227
at least thats the image im using in gns3 i know its not a switch
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Expert Comment

by:Don Johnston
ID: 40545251
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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Author Comment

by:Shark Attack
ID: 40545256
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 Johnston earned 2000 total points
ID: 40545261
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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Author Comment

by:Shark Attack
ID: 40545267
thank you
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