We have 2 Lines to sprint on the same AS,
on our side we have 2 routers that running ebgp to sprint and ibgp between them.
now all the traffic go through one line only and if the primary line fail the traffic go through the backup.
we run eigrp on all our routers in all the sites and we have redestribute between bgp and eigrp also on the 2 routers that run ebgp to sprint.
we want to move to load sharing between those line base on sites , i mean some local soureces address will go through the backup line and the other go through the primary , same with the inbound traffic to those site&address .
what is the best way to do it, and how ?