[Xorp-users] Question about ospf protocol implementation on XORP

[Atanu Ghosh]

On media such as ethernet it is possible to discover neighbours because
it is possible to multicast/broadcast packets. Some technologies do not
support multicast/broadcast in which case it is necessary to configure
the neighbour addresses, typically serial interfaces.

    Atanu.

>>>>> "riccardo" == riccardo  <riccardo.sciaccaluga@tin.it> writes:

    riccardo> Hi I have been reading all the exchanged mail about
    riccardo> establishing ospf adiacences but i have a question.  Ospf
    riccardo> is supposed to be a link state packet routing protocol;
    riccardo> this means the protocol is able to build up its knowledge
    riccardo> about the network topology by itself with hello packets
    riccardo> exchange so the questiopn is: Why in the config file
    riccardo> sample exchanged inside the mail i have been looking at,
    riccardo> there is the declaration of the neighbours id(adress) for
    riccardo> each interface of the router?  Moreover how could it be a
    riccardo> simple config file just to run ospf protocol on routers
    riccardo> placed in a simple network topology A<-->B<-->C....i mean
    riccardo> how could it be a simple config file that let the router
    riccardo> exchanging hello packets and building up the network
    riccardo> topology by themselves?  Thank in advance

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