Telematics Chapter 6: Network Layer - Freie Universität Berlin

Link State Routing
● Second step: Discovery of link
costs
● Transmission of ECHO messages
● Routers at the other end answer
immediately (measurement of the
delay)
● Inclusion of load leads to the choice
of the lowest loaded link
● Side-effect in having two possible
links: the less loaded link is loaded
immediately heavily and the other
link becomes free, with the next
measurement the same happens for
the other link, … (cycling load)
A
B C
D
E
Cycling between
both links, because
of changing load!
Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 6: Network Layer
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