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that are traversed along the path from node ito node j. The links traversed are implicitly defined. If node eis included on the ...

4.5 Packet Attributes and Characterization of Packets A packet travelling through the network domain is characterised by certain ...

4.5.2 Sets of Events Observed on a Link Events that have occurred on a certain link l=(n,k)∈Eare described by the following thre ...

(4.3) Hence, (4.4) 4.6.2 Average Loss Rate Average loss rate is the number of packets that are lost in a given time interval div ...

decides which methods that are possible. Data reduction is especially crucial for passive mea- surements (packet traces and flow ...

[Pasztor] Pasztor, A, Veitch, D. 2001. A preci- sion infrastructure for active probing. In: Pro- ceedings of PAM2001,Amsterdam, ...

245 1 Introduction A test platform is required for Quality of Service testing in IP based networks that carry all types of servi ...

In this paper, the GenSyn measurement platform is described. In Section 2 details about the Gen- Syn traffic generator are given ...

illustrated in Figure 2. The example is originally from ATM [Helv95], but this general multi-level behaviour is independent of t ...

2.1.2.1 Division of State Space Figure 3 shows a principal sketch of the mod- elling framework to illustrate the linking of a co ...

a state sojourn time distribution (negative exponential distribution); list of transition rates, θi,j, and probabilities, pi,j= ...

for each communication state. This enables the definition of an upper limit on the time spent in the communication state. The im ...

tains a stream of numbers as an input. The num- bers are interpreted as the number of bits that are to be put into a datagram (u ...

The VoIP is a specialisation of the CBR module where the stream of packets has random breaks. Both the time between breaks and t ...

The Idleand Readstates are stochastic states. The state sojourn times of these two states are sampled from a probability density ...

bination to demonstrate that a model can use more than one interface module. To combine the two models, a common state needs to ...

user to develop new models that have the char- acteristics of interest. The FTP and VoIP models are only two examples of what ca ...

a different number of users. In a lightly loaded scenario, i.e. where the number of sources in the FTP models is small, it is ve ...

It is important to emphasize that all observations indicate that it is the processor capacity that lim- its the packet rate (pps ...

described by the framework of GenSyn. This includes models of web and FTP clients that generate TCP traffic by downloading pages ...