What is the difference between iBGP and eBGP?

When it comes to Border Gateway Protocol (BGP), there are two main types: Internal BGP (iBGP) and External BGP (eBGP). The main difference between iBGP and eBGP lies in how they are used within a network.

• iBGP (Internal BGP): iBGP is used to exchange BGP information within the same autonomous system (AS). It is typically used for communication between BGP routers within the same organization or network.
• eBGP (External BGP): eBGP, on the other hand, is used to exchange BGP information between different autonomous systems. It is commonly used to establish BGP peering relationships with external networks, such as ISPs or other organizations.

Overall, the key distinction between iBGP and eBGP is their scope of operation: iBGP operates within a single AS, while eBGP connects multiple ASes. Understanding the differences between these two BGP types is crucial for effectively managing and optimizing BGP routing in your network.