Servizio Comunitario di Informazione in materia di Ricerca e Sviluppo - CORDIS

FP5

ATRIUM Sintesi della relazione

Project ID: IST-1999-20675
Finanziato nell'ambito di: FP5-IST
Paese: Belgium

Comparison of the quality-of-service (QoS) possibilities of the A7770 Xantium router with an existing QoS implementation on PC based routers and with a Cisco 7507 platform

The result of the tasks is to compare the quality-of-service (QoS) possibilities of the A7770 Xantium router with an existing QoS implementation on PC based routers (based on the MIT Click modular router toolkit) and with a Cisco 7507 platform. This comparison would be both in functionality and performance, especially from a DiffServ viewpoint. The functionality analysis includes testing and comparing the routers as DiffServ Edge, Leaf or core router as far as they support the different functions as e.g. marking, shaping, policing. Also functionality as per-hop-behaviour (PHB) configuration (e.g. for the standard EF and EF DiffServ classes) will be studied.

The performance testing was done by using the Spirentcom Smartbits platform with Terametrics modules and a.o. the Teracaw software. This software is based on the use of a real network (TCP) stack and can be used to emulate a lot of FTP/HTTP users and servers e.g.. The real TCP stack is especially needed to measure the impact of RED (Random Early Detection). Besides these tests, the normal packet performance measurements (a.o. with SmartFlow) will also be done to test the different behaviours (delay, jitter) of different QoS classes. The PC based routers are used as a kind of reference for the functionality comparison (of course, the performance comparison will be a relative comparison) as we have developed in-house a CORBA interfacing on top of the MIT modular router toolkit, which implements the DiffServ MIB (RFC 3289, converted according the JIDM SNMP-CORBA conversion standard).

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IMEC
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