Welcome

• Michalis OIkonomakos (GRNOG)
• Kostas Zorbadelos (GRNOG)
• Andreas Polyrakis (GRNOG)
• Michalis Bersimis

Lessons learnt from hunting an old Linux kernel bug (Main Room)

• Apollon Oikonomopoulos (Skroutz S.A.)

The story behind a recent blogpost of ours: https://engineering.skroutz.gr/blog/uncovering-a-24-year-old-bug-in-the-linux-kernel/ I will try to cover the aspects *not* covered extensively in the blogpost, i.e. the interaction with the Linux kernel community, the availability of tools and how it has impacted kernel debugging over time, etc. Additionally, I will comment on the responses to the post itself, demonstrating why this bug may have remained uncovered for 24 years.

Segment Routing: Flex-Algo and BGP-CT (Main Room)

• Julian Lucek (Juniper Networks)

In this presentation, we discuss recent segment routing innovations, in particular Flex-Algo and BGP Classful Transport (BGP-CT). These provide a way of extending the Seamless MPLS paradigm to allow inter-domain transport according to a variety of cost-functions, such as minimum latency or minimum monetary cost.

RIFT: Engineering Simplicity in IP Fabric (Main Room)

• Melchior Aelmans (Juniper Networks)

An introduction to a new and novel routing protocol for the datacenter; Routing in Fat Trees or in short RIFT. In this presentation we will dive into what challenges RIFT solves over the use of OSPF, IS-IS and BGP in the datacenter. I will also give an update on the status of the work in IETF and point out to some implementations.

Enhancing ping and traceroute (Main Room)

• Andreas Roeseler (Harvey Mudd College)
• Ron Bonica (Juniper Networks)

This presentation describes recent enhancements to popular IP OAM tools (PING and TRACEROUTE) as described in RFC 8335 and RFC 5837.

Closing

• Michalis OIkonomakos (GRNOG)
• Andreas Polyrakis (GRNOG)
• Kostas Zorbadelos (GRNOG)
• Michalis Bersimis (GRNOG)