OSPF Point to Multipoint interface

[Ariyarathna]

I am reading "OSPF Network Design Solutions" cisco press book and found following on Point to Multipoint interface type.

I am little bit confusing of this statement as current ios use unicast for OSPF packets (Except Hello and Hello use multicast) .

1.Is this valid for old ios versions ?

2. If it is for old ios , is it safe to read this book to understand OSPF protocol ?

Thank you very much for your kind support

[Giuseppe Larosa · Accepted solution]

Hello @Ariyarathna ,

you can ignore that book it does not provide very useful information.

Read Jeff Doyle and others routing TCP/IP volume I if you are really interested in learning routing protocols.

The first edition was even more in depth.

The point to multipoint non-broadcast network type is Cisco proprietary and allows to assign a cost per neighbor even if they are out the same interface or sub-interface.

This is the key take away.

Hope to help

Giuseppe

[Ariyarathna]

@Giuseppe Larosa  Thankyou very much for your reply