|I was thinking eigrp or bgp. Dual wan routers split the traffic but i was thinknig more in detail.|
You asked a general question initially. So, you ended up with a general answer.
Next time, ask the entire question at the outset.
Wondering if BGP could be used to provide redundancy with dual external connections is a detail it would have been good to add in your initial request........don't you think?
As a matter of fact, you can use BGP to provide redundancy for dual external connections.
We've recently added a second external connection where I work and now have two 30 Mbps external connections, from two separate providers, in place to provide us with redundancy and we are using BGP to accomplish this.
Which is to say, should the primary fail, the BGP configuration on our secure routers will shift traffic to the secondary.