Side_1_360

service demands may very well share resources. A simple strategy may be to begin with com- pletely separated networks and later, ...

where x= (x^1 , ..., xA) is subject to the constraints xr> 0 for all routes r, and for all links l In words, the constraints ...

one that yields the highest profit, except that the inverse of the previous transaction is barred. The profit of a transaction i ...

on the LSP. The transmission capacity of each physical link is 10,000 units. The 25 O-D pairs that carry low traffic are connect ...

nected. An infinite1)population of users request file downloads of e.g. web pages from servers. Both users and servers have dire ...

The round trip time tof a data packet can now be calculated as (10) where τis the propagation delay. The terms in the above equa ...

where φadenotes the average size (in bits) of a requested file in aggregate a. The first factor in equation (14) represents the ...

we have μacc= 2,048 kbps and φ= 60 kbytes. The data and acknowledgement packets are of size 1,500 and 40 bytes respectively. The ...

free to find completely new LSPs.2)The lower packet loss probabilities enable faster downloads which, in turn, cause a lower dem ...

It is thus seen that the XFG algorithm would in this case use three objective functions: an objec- tive function based on the M/ ...

7 Arvidsson, Å. High Level B-ISDN/ATM Traffic Management in Real Time. In: Perf. Modelling and Evaluation of ATM Networks. D Kou ...

Telektronikk 2/3.2001 1 Introduction As the Internet is growing from a playground for an elite group of computer scientists in t ...

131 today, and the functionalities that are already implemented there. Also mentioned are new requirements that cannot be satisf ...

the source to be aware of the entire network topology. If a link or a router along the path goes down, a source-routed packet wi ...

2.3 Distance-vector and Link-state Routing The two fundamental routing algorithms in IP networks are distance-vector and link-st ...

In contrast, the philosophy in link-state routing is to distribute the topology of the network and the cost of each link to all ...

failing elements is easier when the number of links and routers is kept relatively small. How- ever, connectivity must be mainta ...

consumable resources (e.g. available bandwidth) this change will happen more often and can introduce routing oscillations as tra ...

3.1 Definition of Constraints Constraints and resources are counterparts to one another: routes have constraints while network e ...

will never be completely up-to-date due to the non-negligible delay of the information dissemi- nation process. The larger the n ...