IIESoc

This session will discuss the role of a Content Delivery Network (CDN) and its role in modern network infrastructure as it impacts IPv6 and IPv6 Extension Headers. 

 

CDNs play a crucial role in optimizing web content delivery by reducing latency and improving performance. Here's a breakdown of the key components

 

1. Edge Servers (or Cache Servers):

 

   - These are servers distributed across various geographical locations, strategically placed closer to end-users.

   - Edge servers store cached copies of web content, such as images, videos, stylesheets, scripts, and other resources, from the origin server.

   - When a user requests content from a website, the CDN's edge server closest to the user responds to the request if it has the requested content in its cache.

   - Edge servers help reduce latency and improve load times because they are physically closer to users, minimizing the distance data needs to travel.

 

2. Origin Server:

 

   - The origin server is the original web server where the website's content is hosted and managed by the website owner (in your example, Facebook's servers).

   - While edge servers cache and serve content, the origin server is the authoritative source for the website's content.

   - CDNs periodically fetch or update content from the origin server to keep their caches up to date.

 

3. IPv6 Extension Headers:

 

   - IPv6 Extension Headers are additional headers used in IPv6 packets to provide extra information or services. These headers are added to the standard IPv6 header to support various features or optimizations.

 

In this session, we will discuss the process as well as potential problems with IPv6 implementations as well as IPv6 Extension Headers.

Neighbour Discovery for IPv6 forms the cornerstone of efficient network communication in the IPv6 realm. It facilitates address resolution, duplicate address detection, and router discovery, making it indispensable for seamless communication across IPv6 networks. However, as enterprises migrate to IPv6, the conventional ND6  protocol may face challenges in terms of scalability and performance.

 

To address these limitations, our research focuses on incorporating the enhancements proposed for 6lowpan in RFC 6775 and 8505 into the mainstream ND6 protocol. These RFCs present innovative solutions that improve the speed and accuracy of neighbour discovery while optimizing the use of multicast messages.

 

In particular, RFC 6775 outlines mechanisms for optimizing ND6 for low-power and lossy networks (6Lowpan). By bringing these optimizations into the mainstream ND6, we aim to enhance its performance and adaptability, especially in enterprise settings.

 

Additionally, RFC 8505 proposes solutions to reduce unnecessary traffic and processing overhead in ND6, further optimizing its performance in larger networks. This reduction in overhead is critical for scaling ND6 to meet the demands of modern enterprise environments.

 

In this presentation, NITK students Sudesh, Advaith, and Kavya will elaborate on our hypothesis, the advanced packet modifications, and their efforts in implementing these upgrades in FreeRtr - an open-source IPv6 routing software. They have been actively involved in the implementation of these enhancement.

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Priyanka Sinha was most recently the IoT Analytics lead at Zenatix. She previously worked on Redback Networks' SmartEdge 800, Itaas' interactive TV, and TCS Research's social IoT. She received her BTech in CSE from IIT Guwahati in 2004, her MS in Computer Engineering from Auburn University in 2007, and her PhD in CSE from IIT Kharagpur in 2022. She was a Vodafone fellow at Auburn, where she worked on autoconfiguration in multi-hop mobile adhoc networks.

The goal of this session is to understand the state of the art in Extension Header testing and support on the Internet. Using PDM, we conduct measurement experiments in different scenarios on the internet, such as how various CDNs and Cloud platforms support Extension Headers. 

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Priyanka Sinha was most recently the IoT Analytics lead at Zenatix. She previously worked on Redback Networks' SmartEdge 800, Itaas' interactive TV, and TCS Research's social IoT. She received her BTech in CSE from IIT Guwahati in 2004, her MS in Computer Engineering from Auburn University in 2007, and her PhD in CSE from IIT Kharagpur in 2022. She was a Vodafone fellow at Auburn, where she worked on autoconfiguration in multi-hop mobile adhoc networks.

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Nalini Elkins is the President of the Industry Network Technology Council.   She is also the CEO and Founder of Inside Products, Inc.  Nalini is a recognized leader in the field of computer performance measurement and analysis. In addition to being an experienced software product designer, developer, and planner, she has been the founder or co-founder of four start-ups in the high-tech arena.

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Nalini started her career doing network design and monitoring for the Chevron network.  She specializes in network performance analysis, measurement, monitoring, tuning, and troubleshooting of large enterprise networks. 

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One of her specialties is training and network design for IPv6 migration for large enterprises.  Many of the Fortune 1000 level companies as well as the large US government organizations have taken her classes on various networking topics.

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She has developed network monitoring and diagnostic products which were later marketed by IBM and other software companies. She received the A.A. Michelson award from the Computer Measurement Group for her contributions to the field. Nalini is on the Advisory Board of the India Internet Engineering Society (IIESoc).

The goal of this session is to understand the state of the art in Extension Header testing and support in the Internet. Using PDM we conduct measurement experiments in different scenarios in the internet such as how various CDNs support Extension Headers. 

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As part of our ongoing collaboration with academia in India, NITK Surathkal students Balajinaidu V., Chinmaya Sharma, Amogh Umesh and Anirudh Munnur Achal shall also be presenting their experiments with eBPF and EH Testing.

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The webinar series will be composed of 6 more sessions of one hour:

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1. Extension Headers-PDM results: May 4

2. VPNs: June 1

3. Extension Headers testing in Cloud: July 6

4. Enhancements for Neighbour Discovery: August 24

5. TBD: September 28

6. IPv6 + CDN: November 30

Segment Routing (SR) architecture seeks to forward data packets on a network based on source routes as encoded in the data packet itself. This session will introduce the basic concepts of segment routing and then go in details of SRv6 (Segment Routing over IPv6 dataplane) technology. Find out about the IPv6 extension header and the potential of the SRv6 network programming concept that provides the ability to code directly into each packet header where the packet needs to be sent and how it should be treated.

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Darren Dukes is a Principal Engineer at Cisco Systems where he designs and build solutions across Cisco’s routing and switching platforms. His current focus is on Segment Routing (SRv6 and SR MPLS) software and their implementation, as well as building the next generation of routing and switching software stacks for Cisco’s enterprise networking portfolio. He’s active within the IETF, most recently concentrating on the SRv6 RFC8754, and SRv6 compression. In his 25+ year career, Darren has built solutions at all levels of the routing stack from drivers to forwarding and control plane, focusing on creating simple solutions in complex problem spaces.

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​Dhruv Dhody has been working in the networking domain for the last 20 years with Huawei Technologies. Their current designation is Chief Architect - Standards. Over the years they have worked on MPLS VPNs, OSPF, NTP, ALTO, CSPF, etc for Huawei's Routing Platform (VRP). They are currently working on research & standards for various emerging technologies such as Path Computation Element (PCE), Segment Routing (SR), and network slicing.

They have been an active IETF contributor since 2010 in Path Computation and Traffic Engineering with 33 RFCs as the main author or contributor. They have filed 21 patents. They have been selected to serve on the Internet Architecture Board (IAB).They are also serving as the PCE WG and EO-DIR co-chair at IETF as well as a part of the Routing Directorate and Operations directorate. They are currently Secretary of the Industry Network Technology Council (INTC). They are a founding member and on the advisory board of the India Internet Engineering Society (IIESoc) and ISOC Hyderabad Chapter.

Dhruv was awarded the Technical role model award by Zinnov and was recognized as a Technology stalwart in India.