In our overview article, you’ll learn about tiers of Internet Service Providers (ISP), Autonomous Systems (AS), and the Internet Exchange Points (IXP) ISPs use to exchange traffic via the BGP routing protocol. You’ll also be given some context for related technologies (such as SD-WAN and IPv6) and troubleshooting tools (such as ping and traceroute).
This chapter tackles the ISP arrangement known as “IP transit,” which is used to transport traffic to its destination, and understand how it differs from IP peering. You’ll also learn about supporting concepts like AS path, dual-homing, BGP communities, and Resource Public Key Infrastructure (RPKI), which helps protect against threats such as BGP leaks and hijacking
Software-defined wide area networks (SD-WAN) are the most popular way to connect remote corporate networks. In this article, we present the benefits and challenges of SD-WANs, and compare SD-WANs to dedicated connections based on the Multiprotocol Label Switching (MPLS) protocol.
Become versed in the inner workings of the Border Gateway Protocol by following diagrams and examples to understand BGP attributes, path selection algorithms, AS path, and Multi-exit discriminator (MED).
Put your newfound knowledge to use by accessing 16 free online tools. Each tool has a specific and useful functionality, such as testing website speeds from global locations, checking MX records, performing Organizationally Unique Identifier (OUI) lookups, browsing the most updated BGP route servers list on the internet, and more.
Like what you’re reading? We’re always adding new chapters to our guides, so stay tuned for more topics!