Hi,
i am looking the way how to configure load sharing dual home to two ISP.
Below is my design. All the branches are connected same design as below.
Switch01 connected to ISR01 and ISR02 running OSPF.
ISR01 and ISR02 are connected IBGP is running.
ISR01 connected to ISPA (primary) private network, no internet transit.
ISR02 connected to ISPB (secondary)private network, no internet transit.
Behind switch01 has multiple subnets.
example i have 4 subnets.
I want to go 2 subnets from ISP A and other two from ISPB.
But if one of the ISP is down all subnet will go to available ISP path.
Is it possible to configure base on AS Patch and source ?
Or is there any better way to configure it?
My english is not good. If you see some mistake pls forgive me. Thanks