The Internet was created to provide transparent data services across interconnected packet switched networks. The interconnection and exchange of Internet routing data between two networks is known as Peering and it represents an important administrative, operational, and security boundary between networks. In this blog, Phil Bedard focuses on the technical aspects of peering covering peering history and current peering architecture in the areas of network, security, and telemetry.

The Segment Routing-based fast-reroute solution, TI-LFA, can provide per-destination sub-50msec protection upon any single link, node or SRLG failure regardless the topology. The traffic is rerouted straight to the post-convergence path, hence avoiding any intermediate flap via an intermediate path. The primary and backup path computation is completely automatic by the IGP. Clarence Filsfils and Kris Michielsen dive deeper.