BGP Advanced Features
- Route Aggregation: Multiple routes can be combined into a single, condensed route using BGP. This improves routing efficiency by assisting in reducing the size of the routing database.
- Communities: Routes can have labels or tags added to them, called BGP communities. They are employed to send certain information to other routers and to group routes. A community may express a desire for a specific exit point, for instance.
- Route Filtering and Policy: BGP uses policies and route filtering to provide users a great deal of control over routing choices. Network managers have the ability to modify BGP route advertisements and choose routes according to different standards.
- Route Refresh: Routers can request and receive changes for their BGP table using the BGP Route Refresh technique without interrupting the BGP session altogether. By doing this, disruptions during BGP route updates can be avoided.
- Multiprotocol BGP (MP-BGP): By adding support for additional network layer protocols to BGP, MP-BGP allows IPv4, IPv6 and other protocol routes to be exchanged within a single BGP session.
- BGP Confederations: BGP Confederations facilitate BGP administration and growth by dividing a big autonomous system into smaller sub-autonomous systems. Confederations lessen the requirement for a complete BGP connection mesh.
BGP (Border Gateway Protocol) Advanced Features and Route Reflectors
A standardized outside gateway protocol called Border Gateway Protocol (BGP) is used to transfer reachability and routing data between various autonomous systems (ASes) on the Internet. As BGP is a path vector protocol, it bases its routing choices on the paths, rules and policies set up by network administrators. It provides a number of sophisticated capabilities to optimize network performance and fine-tune routing choices. As they offer scalability and simplify BGP peerings, route reflectors are an essential part of big BGP networks.