I am new to BGP. We have established BGP neighborship with 2 uplink providers advertising different networks and receiving default routes from both using same AS number. We couldn’t establish iBGP as we have a requirement to use both ISP A and ISP B for specific networks to reach to internet.
- Network A should prefer ISP A for incoming and outgoing
- Network B should prefer ISP B for incoming and outgoing
- Network C should prefer ISP B but in case ISP B goes down should prefer ISP A