Alternativní síťové vrstvy v OpenStacku

Abstract

Cloud computing zskv rostouc popularitu dky vy klovatelnosti, vt exibilitu a snadnj dostupnost svch slueb. Cloud Computing umouje poskytovatelm slueb vytvet velk mnostv zdroj zkaznkm, aby mli uivatel k dispozici zdroje na podn. Na tento el poskytovatel slueb cloud computingu pouvaj virtualizaci, protoe to dv schopnost efektivn sdlet zdroje mezi uivateli. OpenStack, relativn nov open source cloud computing platforma, se zamuje na poskytovn st jako slubu (NaaS) vyuvajc virtualizan technologii. OpenStack slibuje rozshl klovateln cloudov infrastruktury. Bt nov, zstv prozkoumat, jak tyto schopnosti pin, a co pesn fungovn jeho vnitnch detail. Clem tohoto projektu je studium intern sov vkon OpenStack zaloenho na implementaci Neutron nebo jinch sovch plugins jako Calico. Parametry vkonu st, jako je propustnost, ztrta paket a paket zpodn bude vyhodnoceno v rmci provozu TCP a UDP pomoc benchmarkingu IPERF nstroj. eten o modelu toku st potvrzuje, e VM na tomt sov komunikace ve vrstv 2 a komunikace v rznch stch ve vrstv 3 bez ohledu na umstn hostitele. Vsledky ze st vkonnostn experimenty ukzaly, e OpenStack zaruuje vkon s prakticky dnou sovou propustnost. Navc, vsledky ukazuj, e umstn stroj z hlediska hostitele a sov adresa ovlivuje vkon st, nicmn Calico je silnm konkurentem pro Neutron, pokud jde o vkon pedevm pro TCP..

Cloud computing is gaining increasing popularity because of its higher scalability, more exibility and ease of availability of its services. Cloud Computing enables service providers to build a large pool of resources to their customers so that users will have resources accessible on demand. To this end, cloud computing service providers use Virtualization, since it gives them the ability to eectively share resources among their users. OpenStack, a relatively new open source cloud computing platform, focuses on delivering network as a service (NaaS) using virtualization technology. OpenStack promises massively scalable cloud infrastructures. Being new, it remains to be investigated on how it delivers those abilities, and what the exact workings of its internal details are. The aim of this project is to study the internal network performance of OpenStack based while using Neutron implementation or other networking plugings such as Calico. Network performance parameters like throughput, packet loss and packet delay will be evaluated under TCP and UDP trac using IPERF benchmarking tool. The investigation about network ow pattern conrm that VMs on the same network communicate at layer 2 and those at dierent networks communicate at layer 3, irrespective of their host locations. The results from network performance experiments showed that OpenStack guarantees a performance with virtually no network bandwidth bottleneck. In addition, the results shows that the location of machines in terms of host and network address aect network performance, however, Calico is a strong competitor for Neutron in terms of performance mainly for TCP.