Name
Abstract | ||
|---|---|---|
Operators have deployed Multiprotocol Label Switching (MPLS) in the Internet for over a decade. However, its impact on Internet topology measurements is not well known, and it is possible for some MPLS configurations to lead to false router-level links in maps derived from traceroute data. In this paper, we introduce a measurement-based classification of MPLS tunnels, identifying tunnels where IP hops are revealed but not explicitly tagged as label switching routers, as well as tunnels that obscure the underlying path. Using a large-scale dataset we collected, we show that paths frequently cross MPLS tunnels in today's Internet: in our data, at least 30% of the paths we tested traverse an MPLS tunnel. We also propose and evaluate several methods to reveal MPLS tunnels that are not explicitly flagged as such: we discover that their fraction is significant (up to half the explicit tunnel quantity) but most of them do not obscure IP-level topology discovery. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1145/2185376.2185388 | Computer Communication Review |
Keywords | Field | DocType |
measurement-based classification,traceroute data,obscure ip-level topology discovery,false router-level link,mpls configuration,multiprotocol label switching,large-scale dataset,internet topology measurement,mpls tunnel,revealing mpls tunnel,explicit tunnel quantity,internet topology,taxonomy,traceroute,mpls | Internet topology,Multiprotocol Label Switching,traceroute,Computer security,Computer science,Label Information Base,Computer network,Label switching,The Internet,Traverse,Distributed computing | Journal |
Volume | Issue | ISSN |
42 | 2 | 0146-4833 |
Citations | PageRank | References |
28 | 0.91 | 8 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Benoit Donnet | 1 | 434 | 37.37 |
| Matthew Luckie | 2 | 392 | 26.34 |
| Pascal Mérindol | 3 | 146 | 11.71 |
| Jean-jacques Pansiot | 4 | 542 | 96.37 |