1 / 11

A Study of Internet Instant Messaging and Chat Protocols

A Study of Internet Instant Messaging and Chat Protocols. Jennings, R.B., III Nahum, E.M. Olshefski, D.P. Saha, D. Zon-Yin Shae Waters, C. IBM T.J. Watson Res. Center, Yorktown Heights, NY, USA;

madeline-willis
Download Presentation

A Study of Internet Instant Messaging and Chat Protocols

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A Study of Internet Instant Messaging and Chat Protocols Jennings, R.B., IIINahum, E.M.Olshefski, D.P.Saha, D.Zon-Yin ShaeWaters, C.IBM T.J. Watson Res. Center, Yorktown Heights, NY, USA; This paper appears in: Network, IEEEPublication Date: July-Aug. 2006Volume: 20,  Issue: 4On page(s): 16- 21ISSN: 0890-8044 INSPEC Accession Number: 9022797Digital Object Identifier: 10.1109/MNET.2006.1668399Posted online: 2006-08-14 10:00:48.0

  2. Arquitectura • Arquitectura Cliente servidor • Todo se mantiene en el servidor al cual un cliente se conecta para tener el servicio. • Arquitectura Simétrica • Cada servidor realiza la misma función • El cliente no distingue que servidor contacta para determinada actividad. • Arquitectura Asimétrica • Cada servidor realiza una actividad especifica (login, encontrar otros usuarios, mantener las platicas, reenvío de mensajes)

  3. AIM (AOL Instant Messenger • Arquitectura cliente-servidor para operaciones normales • Peer-to-peer para conversaciones de voz • AIM (typing, not typing, typed but erased) • Mensajes de “warning” a contactos • Comunicaciones seguras, encriptando las sesiones (utiliza SSL y dos llaves publicas). cuartos de charla utiliza contraseña de 256bits. • Peer-to-peer text communication

  4. YMSG (Yahoo Messenger) • Arquitectura cliente-servidor • Operación normal y de voz • Ventaja: soporta varios usuarios con voz al mismo tiempo. • Permite enviar mensajes a usuarios no conectados • Peer-to-peer text communication

  5. MSN (Microsoft Messenger) • Arquitectura cliente-servidor para operaciones normales • Peer-to-peer para conversaciones de voz

  6. Arquitectura de AIM

  7. Arquitectura MSN

  8. Arquitectura YMSN

  9. Comparación entre protocolos

  10. Paquete AIM Paquete YMSN

  11. Paquete MSN (texto)

More Related