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TraceNET

TraceNET is an online probe-based tool employing rules based on the inclusion-exclusion principle to collect network layer topology maps. It groups IP addresses in subnets, annotates them with subnet masks, and discovers more IP addresses systematically. It serves as a Topology Collection Tool and a Network Debugging/Analysis Tool, revealing detailed network information for better understanding and troubleshooting.

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TraceNET

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  1. TraceNET M.EnginTozalKamilSaracThe University of Texas at Dallas

  2. TraceNET Traceroute Path Source Destination Source Destination TraceNET Path

  3. TraceNET Traceroute Path Source Destination Source Destination TraceNET Path

  4. TraceNET • TraceNET is an online, probe-based network layer topology collection tool • TraceNET employs a set of rules based on inclusion-exclusion principle • A traceNET session collects a topology map on a path between two end systems • TraceNET • Groups those IP addresses accommodated by the same subnet • Annotates the subnets with their observed subnet masks • Discovers more IP addresses than traceroute in a systematic way. • TraceNET could be used as an • Topology Collection Tool • Network Debugging/Analysis Tool

  5. TraceNET • TraceNET as a Topology Collection Tool • Network topologies are collected at AS-level, router-level, and IP-level • Current router-level topology mapping tools collect IP addresses and groups the ones hosted by the same router (IP Alias Resolution) • Two successive IP addresses in a trace path does not necessarily point the existence of a LAN between them • We believe that layer-3 subnets should be an important part of network topology maps

  6. TraceNET • TraceNET as a Network Debugging/Analysis Tool • Similar to traceroute, traceNET collects a routing path between two end hosts • However, traceNET reveals much more network information than traceroute • This could help for example, to detect server replicas located on the same subnet • We are still looking for new ways of using TraceNET for network debugging/analysis (any suggestion is welcomed)

  7. TraceNET

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  9. TraceNET Exact Match Rate Including Unresponsive Subnets : 73.7% Excluding Unresponsive Subnets : 94.9% Exact Match Rate Including Unresponsive Subnets : 83.0% Excluding Unresponsive Subnets : 86.0%

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  12. TraceNET • Conclusions • TraceNET is a traceroute-like online, probe based tool that collects subnets between two end hosts. • TraceNET could be used in network topology mapping studies to get a more complete map • TraceNET could be employed as network debugging/analysis tool • In this study we devised a set of generic heuristics for inferring subnets • (Future Work) The set of heuristics devised in this study could also be used as an offline algorithm to derive subnets from a bulk of trace paths obtained by traceroute

  13. TraceNET • Questions

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