Reference : Revealing MPLS Tunnels Obscured from Traceroute
Scientific journals : Article
Engineering, computing & technology : Computer science
http://hdl.handle.net/2268/124315
Revealing MPLS Tunnels Obscured from Traceroute
English
Donnet, Benoît mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Algorithmique des grands systèmes >]
Luckie, Matthew [ > > ]
Mérindol, Pascal [ > > ]
Pansiot, Jean-Jacques [ > > ]
Apr-2012
Computer Communication Review
ACM Special Interest Group on Data Communication
42
2
87-93
Yes (verified by ORBi)
International
0146-4833
1943-5819
New York
NY
[en] taxonomy ; traceroute ; MPLS ; toplogy
[en] 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.
http://hdl.handle.net/2268/124315

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
paper.pdfAuthor preprint259.47 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.