Our remote locations are connected to our datacenter using VPN over DSL lines.
We face issues when there are packet loss over the DSL line.
Our requirement is to switch over the traffic to a backup link when the quality of the DSL link detoriorates.
I read that this can be done using "IP SLA". Please can someone advise how and provide a guidance on the configuration involved.
Our remote locations have a Cisco 871 router with c870-advipservicesk9-mz.124-4.T1.bin IOS.