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Webcast-Catalyst9k
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Troubleshooting IP SLA routing issue

I am trying to troubleshoot our IP SLA configuration. It is setup to determine availability of a route through site A and if that route is not available, then the traffic would be redirected to a route in site B. I have the IP SLA configuration below:

IP SLA Config on Site A:

ip sla monitor 1

type echo protocol ipIcmpEcho 10.50.50.1 source-interface FastEthernet0/0.10

ip sla monitor schedule 1 life forever start-time now

track 1 rtr 1 reachability

ip route 10.20.1.0 255.255.255.0 10.20.102.125 track 1

ip route 10.20.1.0 255.255.255.0 10.20.128.16 4

ip route 10.50.50.1 255.255.255.255 10.20.102.125 permanent

The issue we're having is that all traffic appears to be going out the route at Site B and returning through Site A.

IP SLA Config on Site B:

ip sla monitor 1

type echo protocol ipIcmpEcho 10.50.50.1 source-interface FastEthernet0/0

ip sla monitor schedule 1 life forever start-time now

!

track 1 rtr 1 reachability

ip route 10.20.1.0 255.255.255.0 10.20.102.125 track 1

ip route 10.20.1.0 255.255.255.0 10.20.128.16 4

ip route 10.50.50.1 255.255.255.255 10.20.102.125 permanent

You will see that this is just a duplicate of the Site A config and we're planning on removing this after we get everything working on the sites that point to either of these locations.

The other locations have the following routes:

ip route 10.20.1.0 255.255.255.0 10.20.102.125 track 1

ip route 10.20.1.0 255.255.255.0 10.20.128.16 4

ip route 10.50.50.1 255.255.255.255 10.20.102.125 permanent

I've configured BGP on the router in Site A with 10.20.1.0/24 as a network and running sh ip bgp properly shows that the next hop for that network should be 10.20.102.125. With this said, I should be able to remove the routing statements mentioned above on the remote sites routers and the statements on Site B and the intended traffic should be able to find its way (once BGP propagates) to Site A, right?

Thanks for your help,

Chris    

Everyone's tags (4)
1 REPLY
New Member

Why dont you just use HSRP?

Why dont you just use HSRP? Ip sla sucks...

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