I can't explain this behaviour and I'm hoping someone can elighten me on this. I have an eigrp environment with multiple paths to various offices. In one office a route was being advertised to it e.g 10.33.1.0/24 via eigrp through two circuits, once the redundant link was activated the path through it for destinations to 10.33.1.0/24 incremented by 180ms. This redundnant line is a dedicated line that has other traffic flowing through it with 1ms latency, suddenly just for the route 10.33.1.0/24 the latency jumps up to 180ms.
Looking deeper I found a static route on the router advertising the route 10.33.1.0 out through the redundant link, as soon as I removed it latency through that link traffic destined for 10.33.1.0/24 dropped to 1ms. Can someone please explain why this happened?