Contents Telektronikk - Telenor

- Individual losses in the same transit
route do not differ. This is clearly an
approximation that follows from the
simple splitting rule applied above. It
should be more important, however, to
be able to detect varying losses between
different basic nodes and between
subgroups of nodes. The Split
Traffics Calculation may be a useful
method to attain this.
- Though the network considered above
is a very simple one it seems that
point-to-point losses can be estimated
by similar means for several ‘nice’
structures of hierarchical routing. It
must be remembered, however, that
the last choice route (the backbone
route) should consist of low loss links
only.
- From the viewpoint of point-to-point
losses there are certainly many ‘not so
nice’ topologies and routing principles
that remain to be studied. Non-hierarchical
routing is indeed an area of
intriguing problems of that kind. Possibly
the more general results given in
[9] may be of some help.
Acknowledgements
I am most grateful to Prof. A. Myskja of
the University of Trondheim for putting
the question leading to the study [9] and
then supplying ideas for the present
paper. Also I would like to thank my colleagues
Prof. U. Körner and Dr. L.
Reneby of the Lund Institute of Technology
for helpful discussions and proof
reading.
References
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