This note describes a proposed addition of ECN (Explicit Congestion Notification) to IP. TCP is currently the dominant transport protocol used in the Internet. We begin by describing TCP's use of packet drops as an indication of congestion. Next we argue that with the addition of active queue

Reliable transport protocols such as TCP are tuned to perform well in traditional networks where packet losses occur mostly because of congestion. However, networks with wireless and other lossy links also suffer from significant losses due to bit errors and handoffs. TCP responds to all losses

, and notification. Service bindings can support reliable invocation, authentication, authorization, and delegation, if required. Our presentation complements an earlier foundational article, “The Anatomy of the Grid, ” by describing how Grid mechanisms can implement a service-oriented architecture, explaining how

have to be delivered to interested consumers by a reliable notification middleware, which is crucial for a successful implementation of event-based applications. Specified service levels have to be fulfilled and to guarantee them, an exhaustive evaluation and analysis of the underlying event

to be delivered to interested consumers by a reliable notification middleware, which is crucial for a successful implementation of event-based applications. Specified service levels have to be fulfilled and to guarantee them, an exhaustive evaluation and analysis of the underlying event notification middleware

This paper presents Scribe, a large-scale event notification infrastructure for topic-based publish-subscribe applications. Scribe supports large numbers of topics, with a potentially large number of subscribers per topic. Scribe is built on top of Pastry, a generic peer-to-peer object location

carzanig @ cs.colorado.edu This paper describes the design of SIENA, an Internet-scale event notification middleware service for distributed event-based applications deployed over wide-area networks. SIENA is responsible for selecting the notifications that are of in-terest to clients (as expressed

, and middleware services. We introduce the influence field, which can be estimated from a network of binary sensors, as the basis for a novel classifier. A contribution of our work is that we do not assume a reliable network; on the contrary, we quantitatively analyze the effects of network unreliability

and propose a multiplicative model which calculates reliability of the P2P overlay routing substrate and an algorithm based on this model, to deliver event notifications to the client. We employ a technique called ’pruning’

-running autonomy mandates careful design of the runtime system that manages applications on each node, to ensure reliability and ease of upgrades over the life of the system.