hi guys

I have a question about OSPF ..in particular a line from the Jeff Doyle
Routing TCP/IP Vol 1 book..

On Page 417, 2nd paragraph it says that Point to Point networks are a
special config of NBMA networks, the OSPF packets are multicast...

However on page 433, 2nd para "On NBMA, point-to-multipoint" Hellos are
unicast to individual neighbours..
Which is correct?
Could someone care to explain how the packets are sent.

Thanks


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