Learn More
Status of this Memo This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard of any kind. Discussion and suggestions for improvement are requested. Distribution of this memo is unlimited. Abstract This document describes policy-based accounting which is an approach to provide flexibility to accounting(More)
We introduce a charging and accounting (CA) architecture for IP multicast services with QoS guarantees over ATM for QoS-sensitive fair charging. The architecture is based on an extension of the Multicast Integration Server (MIS, [SaCS97]) that efficiently provides IP multicast over ATM, supporting Internet Integrated Services (IS) with receiver(More)
Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. This document may contain material from IETF Documents or IETF(More)
In this paper we propose a layered framework for charging QoS-enhanced IP services with policy based configuration of its layers. As an example architecture we present our implementation-Value Added IP Charging and Accounting Service (VIPCAS). We further concentrate on VIPCAS elements for policies and data exchange. As flexible data structure for exchange(More)
A broad spectrum of network measurement applications demand passive multipoint measurements in which data from multiple observation points has to be correlated. Examples are the passive measurement of one-way delay or the observation of the path that a packet takes through a network. Nevertheless, due to high data rates and the need for fine granular(More)
The Internet has become a complex system with increasing numbers of end-systems, applications, protocols and types of networks. Although we have a good understanding of how data is transferred over the network we cannot observe what happens with our data after sending and before receiving it - how packets traverse through the network and with which QoS(More)
A broad spectrum of network measurement applications demand for multipoint measurements; e.g. one-way delay measurements or packets path tracing. A passive multipoint measurement technique is realized by generating a timestamp and a packet identifier (ID) for each packet traversing an observation point and sending this information to a common collector. The(More)
An IP darkspace is a globally routed IP address space with no active hosts. All traffic destined to darkspace addresses is unsolicited and often originates from network scanning or attacks. A sudden increases of different types of darkspace traffic can serve as indicator of new vulnerabilities, misconfigurations or large scale attacks. In our analysis we(More)