Segment routing: Less state, less capability. IP/MPLS RSVP-TE: More state, more capability

The Important Segment routing (for MPLS) supports explicit routes with LESS STATE than IP/MPLS RSVP-TE, but WITHOUT* bandwidth reservation signaling IP/MPLS with RSVP-TE supports explicit routes, with MORE STATE than Segment Routing (for MPLS), but WITH bandwidth reservation signaling Segment routing: Less state, less capability. IP/MPLS RSVP-TE: More state, more capability. *Not withstanding “https://tools.ietf.org/html/draft-ietf-spring-resource-aware-segments-00” and management interfaces, which will be discussed below….

Network 2025 and Beyond

Introduction As I continue to iterate on, and flesh out, the Internet Innovation Stack which I will use as a way of organizing my technologies of interest, networking is a natural area for me to dive in, as it is the area of technology I know the best. A typical way of articulating the future of networking,…

Hot and Hotables: Wha is hot, what could become hot

The Important Many feel their privacy is under attack. There will be technological, entrepreneurial, and public sector responses At a time when the general-purpose CPU had been declared the winner in seemingly all IT domains, specialized silicon is arising: AI/ML, Storage, networking, and more. IT professionals need to learn the principles of the Cloud era…

Segment Routing: The Journey Back Home

In December 1995, the IETF published RFC 1883, Internet Protocol Version 6. A reasonably modest size document, clearly articulating a focus on expanded addressing, IPv4 header format simplification, improved support for options, flow labeling, authentication & privacy. As the years went on, a good number of people started to see IPv6 as the basis of…