Understanding Packets and Routing Protocols

This chapter explores the technical distinctions between packets and frames in the OSI model, particularly at layer three. It emphasizes the significance of routing protocols, including static and default routes, and the operational mechanics of routers, focusing on the Routing Information Base (RIB) and Forwarding Information Base (FIB). The discussion also covers network operating systems like Junos and their critical role in determining routing decisions, highlighting the influence of administrative distances and route preferences.