Using Quality of Service can be simple: Arequipa with Renegotiable ATM connections
| Autor: | Rolf Schmid, Leena Chandran-Wadia, Jean-Yves Le Boudec, Werner Almesberger, Silvia Giordano |
|---|---|
| Předmět: |
Vic
computer.internet_protocol business.industry Computer science Quality of service ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS General Engineering Arequipa re-negotiation computer.software_genre Videoconferencing Internet protocol suite Asynchronous communication Wide area network ATM adaptation layer ATM Bandwidth (computing) business Mbone computer GeneralLiterature_REFERENCE(e.g. dictionaries encyclopedias glossaries) TCP/IP Computer network |
| Popis: | We have modified the popular Mbone tool vic (VIdeo Conferencing) to use Arequipa (Application REQuested IP over ATM). The latter enables applications and in particular vic, to request a direct ATM connection for its exclusive use and to directly control the traffic parameters of this connection. We have also implemented ATM Forum`s UNI4.0 signaling and ITU-T`s connection modification recommendation Q.2963.1, on end-systems as well as on switches. This implementation, coupled with the Arequipa mechanism, allowed vic to negotiate and renegotiate ATM bandwidth at will, at run time. We describe how vicaccomplished that over the ATM WAN of SWISSCOM, transferring live video from Lausanne to Basel and Zurich over switched, renegotiable ATM connections. To our knowledge, this was the first time any application had the capacity to tune ATM traffic parameters at run time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|