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Plenary

Tuesday, 27 August 09:00 - 10:30

0900hrs - 0930hrs: AFRINIC's Numbering Services & Policy Updates
A Presentation from AFRINIC covering, IP Number resources management, IPv4 exhaustion, IP resource transfers, AFRINIC services adoption, IRR, RPKI and DNSSEC, AFRINIC resource Member account management and IP resources policies.

James Chirwa, AFRINIC
 

 
 
0930hrs - 1000hrs: What's Going on in the world of DNS
This is a 20-minute broad overview of the current challenges in the DNS ecosystem for network operators and policy makers. It is intended for a technical audience. It discusses some of the issues surrounding applications doing their own DNS (e.g. DoH), end user privacy issues, the issue of increasing DNS resolver centralization, a brief update on the KSK roll, and it goes over a recent DNS attack that was very interesting called DNSpionage.

David Huberman, ICANN
 

 
 
1000hrs - 1030hrs: A New Internet? Introduction to HTTP/2, QUIC, DOH and DOQ
This talk will introduce three basic new protocols (with references to several IETF documents) that are already changing the way Internet works and are very relevant for operators. HTTP/2 was introduced already in 2015, based on the SPDY protocol developed and tested by Google. It allows multiplexing several requests into a single TCP connection, improving performance and avoiding the need to queue those request in the client and blocking among them. During the SPDY development, it was also obvious that TCP is inefficient for most of the actual Internet usages, so this work (IETF QUIC WG) is developing a UDP-based, stream-multiplexing, encrypted transport protocol. Finally, the DNS over HTTPS (DOH) IETF WG, is standardizing the encoding of DNS queries and responses over HTTPS, which will solve certain problems of existing DNS methods. This will avoid that authorities impose traffic discriminations or censorship, as if they wish to do so, with DOH they will need to restrict full access to the web server providing the DOH.

Jordi Palet Martinez, The IPv6 Company
 

 
 
Plenary

Tuesday, 27 August 11:00 - 12:30

1100hrs - 1130hrs: Peering Economics
Peering is fundamental to the Internet, but without considering its cost, peering can be expensive and ineffective. This talk looks at the economics of peering and explains techniques for getting the most from your investment.

Susan Forney, Hurricane Electric
 

 
 
1130hrs - 1200hrs: NAPAfrica & Africa Cloud Exchange Update


Andrew Owens, Teraco Data Environments
 

 
 
1200hrs - 1230hrs: INX-ZA Update


Nishal Goburdhan, INX-ZA
 

 
 
Plenary

Tuesday, 27 August 14:00 - 15:30

1400hrs - 1445hrs: A Potential Solution To The African Crisis
The recent announcement of two major submarine cable initiatives by Facebook and Google - titled Simba and Equiano - have plunged Africa into a crisis with deep divisions on how to react to the OTT's attempts at encircling the entire African continent with their very high fiber-count fiber, which has the potential to destroy the local and regional initiatives in that space. The keynote speech I will deliver will try to dive deep into the real problems facing the African carriers and how to deal with the OTT's from a strategic and economic perspective. I will try to come up with a potential solution to this crisis.

Sunil Tagare, OpenCables Inc.
 

 
 
1445hrs - 1530hrs: Byron J. Clatterbuck


Byron J. Clatterbuck, SEACOM
 

 
 
Opening Plenary

Tuesday, 27 August 16:00 - 17:30

1630hrs - 1700hrs: An Approach to Routing in a Clos
Clos explained and BGP-SPF approach described.

Randy Bush, Internet Initiative Japan
 

 
 
1700hrs - 1730hrs: The Complexity of Hyper Speed Transceivers - Let's make it
Thomas will describe, in detail, the structure inside optical transceivers. A Transmitter/Receiver Optical Sub Assembly (TOSA/ROSA) is no longer just a diode in a housing handling the light path to and from to the fiber. The performance increases from 10G to 100G and onward to 400G - are not only giant steps in bandwidth, they are also matching leaps in manufacturing. How did the optical industry players around the globe make it possible to squeeze everything into the tiny form factors we see today? It is about all precision - a microscope with a calm and competent hand is no longer sufficient. Now it is about; nano tolerances, testing, complex transceiver firmware and a shed load of money. This is the high precision optical mechanical engineering revolution which fuels the hyper growth of data centers and optical networking worldwide. Thomas will also dive into the basics of how FEC compensates for errors caused by PAM4 modulation.

Thomas Weible, FlexOptix
 

 
 
Plenary

Wednesday, 28 August 14:00 - 15:30

1400hrs - 1445hrs: Anatomy Of A Routing Leak
The fundamentals of Internet routing are still largely unsecured. A few recent events showed the fragility of BGP routing and the full scale of impact of a BGP leak. On June 24th, 2019, a large BGP leak disrupted of lot of the Internet traffic worldwide. This presentation will expose basic concepts about route leaks, a bit of history, and then unfold the events of June 24th, with some focus on the Africa continent. What efforts is the industry undergoing to address that systemic issue? What counter-measures are available today to protect your network and your customers?

Jerome Fleury, Cloudflare
 

 
 
1445hrs - 1515hrs : Next Gen Blackholing to Counter DDoS
Network attacks, including Distributed Denial-of-Service (DDoS), continuously increase in terms of bandwidth along with damage (recent attacks exceed 1.7 Tbps) and have a devastating impact on the targeted companies/governments. Over the years, mitigation techniques, ranging from blackholing to ACL filtering at routers, and on to traffic scrubbing, have been added to our toolboxes. Even though these mitigation techniques provide some protection, they either yield severe collateral damage, e.g., dropping legitimate traffic, are cost-intensive, or do not scale well for Tbps level attacks. In this talk we present our Next Generation Blackholing system, developed and deployed at DE-CIX by combining available hardware filters with a novel route server-based signaling mechanism. It builds upon the scalability of blackholing while limiting collateral damage by increasing its granularity. We present the design fundamentals and the building blocks while highlighting implementation challenges and performance evaluation.

Christoph Dietzel, DE-CIX
 

 
 

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