CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

IGP Redistribution and BGP Synchronization

You can also redistribute BGP routes into the IGP to solve the routing loop problem. This solution prevents the routing loop by giving the internal enterprise routers knowledge of the best exit point for each known Internet destination.

Although this solves the problem, particularly when just learning with lab gear at home, redistribution of BGP routes into an IGP is generally not recommended. This redistribution requires a relatively large amount of memory and a relatively large amount of processing by an IGP with the much larger number of routes to process. Redistributing all the routes in the full Internet BGP table could crash the IGP routing protocols.

Note

BGP consumes less memory and uses less ...