I came up with a few ideas to Load Balance based on multiple ISPs. In our network setup we have a distribution layer of 3750s going to an
ASR 1000 Series Router, which goes out to multiple ISPs, ISP1 and ISP2.
So let's say we also have a virtual fortinet appliance behind the 3750. If I say all traffic going to 0 - 126 goto ISP1, and 128 - 254 goto ISP2,
and then obviously whatever NATd IP the customer has (ISP1 or ISP2), the return traffic will have to go to that specific IP. The traffic will all
go back to the virtual fortinet on the same interface, so I would assume I would be safe with uPF.
I don't know of any ways to load balance based on Link Optimization, without implementing a load balancer, unless anyone has any other ideas.
I was just trying to find the best way to do a 50/50 split, which I know may not always be the case.
I just dont' want to pay for two 100Mbps links and only use one, seems like a waste of money.