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Forum Discussion

EAX_25745's avatar
EAX_25745
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Mar 27, 2013

F5 and Cisco ASR SLA

Hi,   I have a scenerio where we have two F5s (Active / Standby) mesh connected to Cisco ASR 9000 routers with /31 subnets for the mesh connecitivty.   How can we implement SLA on the Cisco ASR...
config
design
aj1's avatar
aj1
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Nov 11, 2014

Hi EAX. I have configured OSPF between F5s and the Junipers. And configured ip forwarding virtuals. Active/Standby work just fine. I am now trying to reach a host configured in the load balancer vlan. Pings work fine but the traceroutes are a bit icky. In the traceroute o/p, the load balancer hop is constantly flapping between the two interfaces of the active unit, and at times there is a loop between the interfaces of the active unit. It finally does reach the destination, but curious as to what is causing this behavior. Did you encounter this behavior when your HA pair was setup with the ASRs? Thanks.