Single-Homed
The single-homed Internet design uses a single ISP, with a single link between the enterprise and the ISP. With single-homed designs, only one possible next-hop router exists for any and all routes for destinations in the Internet. As a result, no matter what you do with BGP, all learned routes would list the same outgoing interface for every route, which minimizes the benefits of using BGP.
Single-homed designs often use one of two options for routing to and from the Internet:
Use static routes (default in the enterprise, and a static route for the enterprise’s public address range at the ISP).
Use BGP, but only to exchange a default ...
Get CCNP Routing and Switching ROUTE 300-101 Official Cert Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
