Het is echter wel schadelijk om overmatig te alcohol te drinken, zeker als u een infectie heeft. Dit komt de infectie eerder verergerd door het gebruik van alcohol amoxicilline kopen zonder recept Doorgaans worden ze voorgeschreven bij bacteriële infecties die om de één of andere reden niet uit zichzelf over gaan; ze doden dan de bacteriën.

Powerpoint 프레젠테이션

Comparative Study of Protocols for Dynamic Service
Negotiation in the Next-Generation Internet
Jongwon Park
([email protected])
Kwang Woon University
Communication Protocol Engineering Lab
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ Introduction
‰ Characterizing SLA and SLS
‰ A Generic Negotiation Framework
‰ Resource Negotiation And Pricing Protocol
‰ Service Negotiation Protocol
‰ COPS-SLS
‰ Dynamic Service Negotiation Protocol
‰ QoS NSIS Signaling Layer Protocol
‰ QoS Generic Signaling Layer Protocol
‰ Characteristic of A Service Negotiation Protocol
‰ Comparative Study of The Negotiation Protocols
‰ Conclusions
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ The internet is rapidly evolving into a commercial infrastructure
™ Resulting in increased demand for QoS guarantees from network
‰ Allow users to dynamically adjust their desired service along with
acceptable prices for the service
‰ It presents a survey of the various service negotiation
protocols and qualitative comparison of them
‰ It elaborates on the characteristic of an ideal service
negotiation protocol
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ SLA (Service Level Agreement)
™ It is a service contract between providers and customers
™ The technical specification is given in SLSs
‰ SLS (Service Level Specification)
™ It is a set of parameters and their values
™ It define the service offered to a traffic stream
™ SLS parameters
9 Scope specification
9 Flow specification
9 Traffic specification
9 Performance guarantee specification
9 Service schedule specification
9 SLS identifier
9 Price
9 Device and network capabilities
Communication
Jongwon Park
Protocol
Engineering Lab.
Communication
Jongwon Park
Protocol
Engineering Lab.
Resource Negotiation And Pricing Protocol ‰ RNAP (Resource Negotiation And Pricing protocol)
™ One of the earliest protocols developed to facilitate service negotiation
™ It can be considered an extension of Resource Reservation Protocol.
‰ Characteristics of RNAP
™ Allow for the negotiation of price of the contracted services
™ Work with both centralized and distributed implementations of NMs
™ Employs a soft state approach to negotiation
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ SrNP (Service Negotiation Protocol)
™ It is not specific to any particular SLS format
™ Agree on the value of the features included in the document under
negotiation
‰ SrNP message
™ Can be encoded in ASCII, basic encoding rules(BER), XML for the stack used
™ Encapsulate SrNP message in widely deployed protocols such as RSVP, COPS
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ COPS (Common Open Policy Service)
™ Distinguishes the interactions between a subscriber and the NM into
two phases : configuration and negotiation
™ In the Configuration phase, the service provider informs the subscriber
how to request a level of service.
™ After the configuration phase, the subscriber can start the negotiation
‰ COPS-SLS
™ An extension of the COPS protocol to negotiate an SLS either between
a network and a customer or two networks
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ DSNP (Dynamic Service Negotiation Protocol)
™ It was developed exclusively for dynamic service negotiation.
™ It is lightweight and better suited to wireless devices such as PDAs
™ Whenever a mobile subscriber negotiates, the NM disseminates the
QoS profile to edge router
™ Moving into adjacent networks, it continues to do the negotiated service
without any additional signaling
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ QoS-NSLP (NSIS Signaling Layer Protocol)
™ It is a protocol for signaling QoS reservations
™ It is an extension of RSVP
™ Its working is quite similar to RNAP
™ A better fit for distributed settings, not assume the existence of a
centralized resource manager to carry out
‰ NSIS (Next Steps in Signaling)
™ Be structured in two layers NTLP(NSIS Transport Layer Protocol) and
NSLP (NSIS Signaling Layer Protocol)
™ Signal protocol with QoS guarantees is not in IP network
Communication
Jongwon Park
Protocol
Engineering Lab.
‰ QoS-GSLP (Generic Signaling Layer Protocol)
™ Used for controlling and negotiating bilateral QoS requirements in
mobile and builds on top of NSIS protocol suite
™ Use knowledge about mobile and traffic patterns to set up in advance
™ Reduces the SLS setup times for Mobile subscribers
™ Can be advantageous in a dynamic environment
Communication
Jongwon Park
Protocol
Engineering Lab.
Characteristic of A Service Negotiation Protocol ‰ The features desired in an ideal service negotiation protocol
™ Primary negotiation capabilities
9 It is vital for negotiating and establishing an SLS dynamically
™ Compatibility with QoS architectures
™ Transparency to wireless link layer technologies
9 The needed transparency for moving between disparate wireless environments
™ Reduced signaling overhead
9 Signaling consumed precious resource like bandwidth and battery of wireless device
should be sparingly used
™ Transparency to SLS parameters
9 Protocols developed does not predefine the format of an SLS
™ Extend existing protocols
9 Use of previously existing signal protocol
™ Lightweight
9 To use across device with varying capabilities , protocol should be lightweight
Communication
Jongwon Park
Protocol
Engineering Lab.
Comparative Study of The Negotiation Protocols Communication
Jongwon Park
Protocol
Engineering Lab.
‰ This presents an overview of the various service negotiation
protocols
‰ All the protocols possess the basic negotiation capabilities
‰ They differ in terms of costs, complexity, SLS transparency
and overhead.
Communication
Jongwon Park
Protocol
Engineering Lab.

Source: http://cpe.kw.ac.kr/upload/service(2).pdf

portugal.vortal.biz

(Actos cuja publicação é uma condição da sua aplicabilidade) REGULAMENTO (CE) N.o 792/2002 DO CONSELHO de 7 de Maio de 2002 que altera, a título temporário, o Regulamento (CEE) n.o 218/92 relativo à cooperação administra- tiva no domínio dos impostos indirectos (IVA) no que se refere a medidas adicionais relativas ao comércio electrónico estabelecido ou residente na C

identity-balance.at

Female and male brains (an outline) by Serge Ginger Introduction Now, I introduce myself: I’M Secretary general of the French Umbrella for Psychotherapy (FFdP) and Registrar of theEAP;I’ve worked, during some years, as UNESCO expert in the field of Special Education;I’m a Gestalt Therapist and President of the International Federation of Gestalt TrainingOrganizations (FO

Copyright © 2012-2014 Medical Theses