Seonglae Chointernal BGP
It is used to decide the gateway that uses eBGP
Autonomous systems can also use an internal version of BGP to route through their internal networks, which is known as internal BGP
iBGP routes are classified as prefixes learned from a neighbor BGP router with the same AS
Internal BGP (Border Gateway Protocol) explained
This lesson explains why we need Internal BGP, what IBGP split horizon is about and how to configure IBGP on Cisco IOS Routers.
https://networklessons.com/bgp/internal-bgp-border-gateway-protocol-explained
