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On the Dynamics of Locators in LISP
Saucez, Damien; Donnet, Benoît
2012In IFIP/TC6 Networking
Peer reviewed
 

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Keywords :
LISP; Locators; Measurement
Abstract :
[en] In the Internet, IP addresses play the dual role of identifying the hosts and locating them on the topology. This design choice limits the way a network can control its traffic and causes scalability issues. To overcome this limitation, the Locator/Identifier Separation Protocol (LISP) has been introduced. In LISP, the addresses used to identify end hosts (i.e., identifiers) are independent of the addresses used to locate them (i.e., locators). LISP maps identifiers into a list of locators and provides a mean to transport the packets with the appropriate locator. A key feature of this separation is that several locators can be associated to a given identifier, leading to more control for an end-site on the path selection to reach a given destination. In this paper, we show that the choice of the locator can have an impact on the performance and the reliability of the communication in a LISP environment. To this aim, we build a mapping between identifiers and locators as if LISP were deployed today. In addition, we extensively collect delay data between locators and demonstrate that the locator selection for a given identifier prefix impacts the performance of the LISP path in 25% of the cases. Finally, we measure the locators availability over time and demonstrate that it remains quite stable.
Disciplines :
Computer science
Author, co-author :
Saucez, Damien
Donnet, Benoît  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Algorithmique des grands systèmes
Language :
English
Title :
On the Dynamics of Locators in LISP
Publication date :
May 2012
Event name :
IFIP/TC6 Networking
Event place :
Prague, Czechia
Event date :
du 21 mai2012 au 25 mai 2012
Audience :
International
Main work title :
IFIP/TC6 Networking
Peer reviewed :
Peer reviewed
Available on ORBi :
since 23 February 2012

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