Geographically informed inter-domain routing

Ricardo Oliveira, Mohit Lad, Beichuan Zhang, Lixia Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Scopus citations


In this paper we propose a new routing protocol and address scheme, Geographically Informed Inter-Domain Routing (GIRO). GIRO departs from previous geographic addressing proposals in that it uses geographic information to assist, not to replace, the provider-based IP address allocation and policy-based routing. We show that, by incorporating geographic information into the IP address structure, GIRO can significantly improve the scalability and performance of the global Internet routing system. Within the routing policy constraints, geographic information enables the selection of shortest available routing paths. We evaluate GIRO's performance through simulations using a Rocketfuel-measured Internet topology. Our results show that, compared to the current practice, GIRO can reduce the geographic distance for 70% of the existing BGP paths, and the reduction is more than 40% for about 20% of the paths. Furthermore, encoding geographic information into IP addresses also enables GIRO to apply geographical route aggregation, and a combination of geographic and topological aggregation can lead to 75% reduction of the current BGP routing table size.

Original languageEnglish (US)
Title of host publicationProceedings - 15th IEEE International Conference on Network Protocols, ICNP 2007
Number of pages10
StatePublished - 2007
Event15th IEEE International Conference on Network Protocols, ICNP 2007 - Beijing, China
Duration: Oct 16 2007Oct 19 2007

Publication series

NameProceedings - International Conference on Network Protocols, ICNP
ISSN (Print)1092-1648


Other15th IEEE International Conference on Network Protocols, ICNP 2007

ASJC Scopus subject areas

  • General Engineering


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