Analysis of the Impact of IPSec on performance characteristics of VoIP networks and voice quality
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F15%3A00531273" target="_blank" >RIV/60162694:G43__/15:00531273 - isvavai.cz</a>
Result on the web
<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Analysis of the Impact of IPSec on performance characteristics of VoIP networks and voice quality
Original language description
Providing secure communication has become an essential requirement for VoIP networks. To meet this requirement in a VoIP environment is more complex than in conventional data networks due to the implementation of real-time applications. Network traffic can be encrypted by many solutions. One of them is a widely used and standardized IPSec. During the experiments we have consequently tested the impact of the IPSec encryption on the router CPU utilization, bandwidth required and voice quality. All of these parameters are functions of the number of performed calls. Setting the appropriate Voice Payload Period (VPP) can change the number of simultaneously transmitted and processed packets. The tests were carried out on Integrated Services Cisco 2811 routers that are suitable for small companies. Measurements were carried out for two types of codecs. The outcomes proved a significant effect of VPP on the CPU utilization and also on bandwidth. If the VPP is chosen properly, up to 40 to 60 % of bandwidth can be saved. The call quality, expressed by MOS scales, remains almost constant up to the moment when the utilization is close to 80 %.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
KA - Militarism
OECD FORD branch
—
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
International Conference on Military Technologies 2015
ISBN
978-80-7231-976-3
ISSN
—
e-ISSN
—
Number of pages
5
Pages from-to
375-379
Publisher name
University of Defence
Place of publication
Brno
Event location
Brno
Event date
—
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—