the OSPF is a link-state protocol: then OSPF is based on LSAs (link-State Advertisements), i.d. description of the links connected to every router in the same area or the routes coming from other areas or other routing domains.
WThe point is that the exchange of the link-state information is performed in the Multiaccess networks (Ethernet, Frame-relay...) in a different way from the Point-to-point links.
There is just th establishment of neighbor relationships between the DR (Designated Router) and all the other routers in the same Multiaccess segment (DROthers).
This means that the exchange of the link-state is performed just through these neighbor relationships. BUT this also means that this exchange of link-state info is performed in this way JUST OVER THESE MULTIACCESS LINKS.
Of course, if a router has more than one interface (and this is likely to happen for a router....), this router can get some link-state info (not "all its routes") from its DR on a Multiaccess network (if the DR is not itself..) and some other link-state info from other links from other peers (DRs for Multiaccess or peers for point-to-point).
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...