This is my recent problem i faced in my network by having loops created in network and network going shut or performence fail for some sites.
In details , my network is having two 7600 routers connected to service provider by BGP with 4 and 2 MB link respectively.I use EIGRP at my core switch ,for my internal network. My getting routes from all my remotes sites on both links if used shutting down one router.If both routers are switched on,my both routers are learing same routes and creating loops in network and network fails.
Some how i found that i can make load balancing by using IBGP between two routers.
Couldn anyone please let me knew further detail process for same.