Source Routing 2.0. Why Now, Why Again?
4,047 views · Published 5 June 2015 · 32:19 · Indexed 25 September 2026
Channel: NANOG · 2015 · Science & Technology
Nick Slabakov, Juniper Networks Traditional source routing using IP header options was never widely deployed due to security concerns. Recent buzz around Segment Routing (a.k.a. SPRING) has re-invigorated interest in source routing technologies and their potential benefits. For many operators however, moving to SPRING represents a significant change in their operating practices, so in a more incremental approach they are implementing SPRING-inspired designs using current technologies with minor augmentations. In this talk we will review SPRING/SR, but will mainly focus on using existing protocols for achieving similar benefits. We will discuss: - clever usage of static LSPs to achieve predictable label values in a data-center network - minor enhancements to BGP-LU for more resilient EPE (Egress Peer Engineering) - interoperability considerations between SPRING and non-SPRING domains - See more at: https://www.nanog.org/meetings/nanog64/agenda#sthash.m3U6Z3nz.dpuf
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