![]() ![]() This is what makes them compatible, and enables them to recurse through the database. Th network type NBMA shares characterstics such as DR/BDR election, that is the generation of Type 2 LSA with the broadcast type. ![]() ![]() So the network types are grouped as broadcast/Non Broadcast vs other network types. Adding to Kevs response, here is a brief summary of the 6 network types which includes the special case for loopbacks. In OSPF the network types have to be compatible. There are five different configurable OSPF network types on a Cisco router, broadcast, non-broadcast, point-to-point, point-to-multipoint and point-to-multipoint non-broadcast. Advertises the interface as a host route changeable by configuring the interface as point-to-point.The default OSPF network type only available to loopback interfaces.Host routes are added in the routing table.Next hop address is that of the advertising router.Default on HDLC, PPP and Frame-relay Point-to-Point.Neighbor command required on hub router OSPF behaves differently while peers are connected using various kind of networks.Default on Multipoint interface like Frame-relay.Next hop is not changed and remains the ip address of the originating router There are five types of OSPF areas, which are as follows: BackBone Area: The backbone area is area 0.ĭefault on broadcast medias (Ethernet / Token Ring) Sends hellos as multicast Performs DR/BDR Election. Communication between two nodes in an interconnected network can take place through many different paths. Some types will work with each other but you have to adjust the hello/dead timers. ![]()
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