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A Border Gateway Protocol Extension for Distributing Endpoint Identifier Reachability Information in Delay-tolerant Networks

Marius Feldmann, Théo Tchilinguirian, Felix Walter

TL;DR

An approach is proposed for configuring DTN endpoint reachability to extend the Border Gateway Protocol (BGP), enabling it to advertise the reachability of DTN endpoints specified by Endpoint Identifiers (EIDs) via specific next-hop Convergence Layer Adapters (CLAs).

Abstract

The Delay-Tolerant Networking (DTN) community has created solid results during the last three decades. One aspect that still requires focus, however, is the simplification of configuring systems participating in DTN communication. In this workshop paper, an approach is proposed for configuring DTN endpoint reachability. The core idea is to extend the Border Gateway Protocol (BGP), enabling it to advertise the reachability of DTN endpoints specified by Endpoint Identifiers (EIDs) via specific next-hop Convergence Layer Adapters (CLAs). The approach is mainly intended for usage in edge nodes accessible from an IP network, which communicate via a DTN gateway to a larger DTN infrastructure. It may be applied to simplify access to the Solar System Internet from hosts connected to the Internet. The feasibility of the approach has been confirmed using an implementation intended for validation purposes.

A Border Gateway Protocol Extension for Distributing Endpoint Identifier Reachability Information in Delay-tolerant Networks

TL;DR

An approach is proposed for configuring DTN endpoint reachability to extend the Border Gateway Protocol (BGP), enabling it to advertise the reachability of DTN endpoints specified by Endpoint Identifiers (EIDs) via specific next-hop Convergence Layer Adapters (CLAs).

Abstract

The Delay-Tolerant Networking (DTN) community has created solid results during the last three decades. One aspect that still requires focus, however, is the simplification of configuring systems participating in DTN communication. In this workshop paper, an approach is proposed for configuring DTN endpoint reachability. The core idea is to extend the Border Gateway Protocol (BGP), enabling it to advertise the reachability of DTN endpoints specified by Endpoint Identifiers (EIDs) via specific next-hop Convergence Layer Adapters (CLAs). The approach is mainly intended for usage in edge nodes accessible from an IP network, which communicate via a DTN gateway to a larger DTN infrastructure. It may be applied to simplify access to the Solar System Internet from hosts connected to the Internet. The feasibility of the approach has been confirmed using an implementation intended for validation purposes.
Paper Structure (15 sections, 4 figures)

This paper contains 15 sections, 4 figures.

Table of Contents

  1. Introduction
  2. Use Cases
  3. Access to the Solar System Internet
  4. Delay-tolerant Kubernetes
  5. Requirements and State of the Art
  6. Requirements
  7. State of the Art
  8. EID Reachability Information Distribution
  9. Using BGP for Distributing EID Reachability Information
  10. Information Exchange Approach
  11. Multiprotocol Reachable and Unreachable NLRI
  12. Prototyping
  13. Overview of Implementation
  14. Scenario-based Validation
  15. Summary and Outlook

Figures (4)

  • Figure 1: Global Picture of the EID Reachability Distribution Approach: Two nodes connected via a low-latency IP communication channel exchange EID reachability information using BGP. A third node, connected via a DTN link, is announced in the IP subnetwork but does not participate itself in the BGP-based reachability information distribution scheme. The individual steps for EID reachability distribution are labeled in the figure.
  • Figure 2: Hermes high-level structure: The modular architecture has adapters in both directions, for integrating the BGP and BP implementations.
  • Figure 3: EID reachability information exchange between µD3TN and Hermes. The AAP2 interface is used to perform updates on demand in both directions.
  • Figure 4: BGP exchange between two DTN-enabled hosts