I'm looking at a network with two independent core routers, each with a different sized uplink, one 50mbps and the other 100mbps to a different ISP. I'm trying to get redundancy as well as load balancing across both links.
Predominantly there are service routers connected to the core so I was thinking of doing iBGP in this area and publishing two default routes to access the internet. I thought of using VRRP but that would be more of a master/slave arrangement.
Is this a good approach to HA? If so, how could I engineer the traffic flow in this environment?