Guide Explains IP Transit, BGP, and ASNs

This is an explanatory article about IP transit and internet routing concepts, not a first-time announcement or deal.

• It explains IP Transit, peering, Provider Independent (PI) and Provider Aggregatable (PA) addressing, and how Autonomous Systems (AS) and ASNs support routing.
• It also describes BGP, AS PATHs, and the differences between Tier 1, Tier 2, and Tier 3 providers, with FAQ-style commentary on security risks and connectivity.