[en] Packet forwarding in Software-Defined Networks
(SDN) relies on a centralised network controller which enforces
network policies expressed as forwarding rules. Rules
are deployed as sets of entries into network device tables.
With heterogeneous devices, deployment is strongly bounded
by the respective table constraints (size, lookup time, etc.) and
forwarding pipelines. Hence, minimising the overall number of
entries is paramount in reducing resource consumption and
speeding up the search. Moreover, since multiple control plane
applications can deploy own rules, conflicts may occur. To avoid
those and ensure overall correctness, a rule validation mechanism
is required. Here, we present a compilation mechanism for rules
of diverging origins that minimises the number of entries. Since
it exploits the semantics of rules and entries, our compiler fits a
heterogeneous landscape of network devices. We evaluated compiler
implementations on both software and hardware switches
using a realistic testbed. Experimental results show a reduction
in both produced table entries and forwarding delay.
Disciplines :
Sciences informatiques
Auteur, co-auteur :
HOMMES, Stefan ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Valtchev, Petko; Université du Québec à Montréal
Blaiech, Khalil; Université du Québec à Montréal
Hamadi, Salaheddine; Université du Québec à Montréal
Cherkaoui, Omar; Université du Québec à Montréal
STATE, Radu ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Optimising Packet Forwarding in Multi-Tenant Networks using Rule Compilation
Date de publication/diffusion :
novembre 2017
Nom de la manifestation :
International Symposium on Network Computing and Applications (NCA 2017)
Lieu de la manifestation :
Cambridge, MA, Etats-Unis
Date de la manifestation :
from 30-10-2017 to 01-11-2017
Manifestation à portée :
International
Titre de l'ouvrage principal :
Optimising Packet Forwarding in Multi-Tenant Networks using Rule Compilation
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