Temat prezentacji: Routing Proximity
Język prezentacji: angielski
Stefano Previdi – Joined Cisco as Routing Protocol expert in 1996 after having spent 15 years in engineering of large enterprise and service provider networks. From 1998 until 2000 acted as Consulting Engineer and actively participated to the definition of MPLS-VPN and MPLS-TE architectures, including the design and support of major initial MPLS-VPN deployments. From 2000 worked on several extensions and improvements of routing protocol implementations (ISIS in both IOS and IOS-XR implementations) mostly related to Fast Convergence and he wrote the IPFRR implementation in IOS-XR. Recently, Stefano is leading architecture and implementation of proximity technologies applied to service/content routing and peer-to-peer networking.
Stefano is an active member of IETF and IRTF, especially in ALTO, ISIS, RTG Working groups and also working on the re-chartering of the IRTF peer2peer Research Group.
Abstrakt: Caching, replication and localization of content and services are vital for optimization of network resources (example: locate the nearest copy of a movie or the closest instance of a service among several available resources). So far, little attention has been given to the inter-working between network layer (where infrastructure resides) and application layer and hence application selection process, currently, does not take into account the underlying infrastructure and the impact on resources utilization. For example, peer to peer applications such as bittorrent are often observed to move a single piece of content back and forth across an inter-provider link multiple times, because the peer selection algorithm does not take account of the network layer topology. Proximity Technology aims to fill the gap between routing/infrastructure and above layers by delivering a localization service to any application selection process. Proximity is computed among addresses through specific algorithms and ranking methods in order to guide application level selection process. The goal of proximity technology is to improve both network/infrastructure resources utilization and application performance by enhancing application-specific selection process. The presentation gives an overview on following topics: – Context, problem statement – Cisco Proximity Technologies – Application Layer Traffic Optimization (IETF/IRTF).
