MPLS is a core technology in service provider and large enterprise networks. Segment routing, also called SPRING, is emerging as a new traffic engineering method that can control pathing through the MPLS network via a central controller injecting a path into the source of traffic.
Overview by Juniper CTO Bikash Koley
Free Day One series books
- Day One: Configuring Segment Routing with Junos
https://www.juniper.net/us/en/training/jnbooks/day-one/configuring-segment-routing-junos/index.page - Day One: Inside Segment Routing
https://www.juniper.net/us/en/training/jnbooks/day-one/inside-segment-routing/ - Day One Million promotion site where the Segment routing bundle & many others can be downloaded for free
https://www.juniper.net/us/en/dm/day-one-million/
Blog Series by Ron Bonica
This series of blogs by Juniper Distinguished Engineer Ron Bonica goes over the details of how Junos implements Segment Routing.
link to check on Ron’s newest blogs:
https://forums.juniper.net/t5/forums/recentpostspage/post-type/message/category-id/Blogs/user-id/178052
Ron was also a guest on a sponsored episode on the Packet Pushers podcast.
https://packetpushers.net/podcast/heavy-networking-477-segment-routing-boot-camp-with-juniper-networks-sponsored/
Ron has a video series on Introduction to Segment Routing on YouTube
https://www.youtube.com/playlist?list=PLGvolzhkU_gQcpye7Xr5SzM_yYgGPZA0t
- Segment Routing Overview
https://forums.juniper.net/t5/Industry-Solutions-and-Trends/A-Segment-Routing-Renaissance/ba-p/462699 - Segment Routing: Policies, Paths and Segments
https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Segment-Routing-Policies-Paths-and-Segments/ba-p/463023 - Segment Routing With Multiprotocol Label Switching (MPLS)
https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Segment-Routing-SR-With-Multiprotocol-Label-Switching-MPLS/ba-p/463206 - Segment Routing Traffic Engineering:
part 1: https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Segment-Routing-SR-and-Traffic-Engineering-TE-Part-One/ba-p/463416
part 2 : https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Segment-Routing-SR-And-Traffic-Engineering-TE-Part-Two/ba-p/464018 - Segment Routing and Topology Independent Loop Free Alternates
https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Segment-Routing-SR-and-Topology-Independent-Loop-Free-Alternates/ba-p/472978 - IGP Flexible Algorithms
https://blogs.juniper.net/en-us/industry-solutions-and-trends/igp-flexible-algorithms-flex-algo
Blog Series by Colby Barth
This series of blogs by Juniper Distinguished Engineer Colby Barth go over his perspective on the Junos implementation options.
- Bandwidth Optimization based Traffic Engineering using RSVP-TE & Segment Routing
https://forums.juniper.net/t5/Routing/Bandwidth-Optimization-based-Traffic-Engineering-using-RSVP-TE/ta-p/410097 - MPLS Based SPF & TE Solutions: LDP, RSVP-TE & Segment Routing (SR)
https://forums.juniper.net/t5/Routing/MPLS-Based-SPF-amp-TE-Solutions-LDP-RSVP-TE-amp-Segment-Routing/ta-p/445271 - LSP, RSVP-TE & Segment Routing (SR)
https://forums.juniper.net/t5/Routing/Service-Mapping-in-MPLS-Networks-LSP-RSVP-TE-amp-Segment-Routing/ta-p/458537
Northstar Controller Support
This post by Juniper Senior Director of Product Management Sachin Natu focuses on how the Juniper Northstar solution implements controls for Segment routing.
- Traffic Engineering Segment Routed Networks with NorthStar Controller
https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Traffic-Engineering-Segment-Routed-Networks-with-NorthStar/ba-p/459613
Juniper is also actively part of the IETF standards process for SRv6 which outlines the ipv6 version of segment routing.
https://forums.juniper.net/t5/Routing/SRv6-Segment-Routing-Headers-Why-We-Want-Them/ta-p/461964
Originally published 10/6/2019
Updated 1/20/2020
Updated 2/5/2020
Updated 8/5/2020