I have HQ and some branches that connected over MPLS. each site have one router with 2 Links from different provider.
Currently We have implemented BGP routing on them (with different AS Number).
Now, I'm trying to distribute some traffic on these. In normal condition, I want Voice Traffic go to Link A and others thru Link B. If one of links (on the site) became down, All traffic would go to the UP Link.
I've tried PBR with "set as-path prepend" command to make a specific path longer than others. But, the result was all traffic only go to one ISP, not distributed as I want.
anyone have experience regarding this?