
Configuring IP Services
5-16 114065 Rev. A
A point-to-multipoint network supports multiple routers in a partial mesh
configuration. (Bay Networks supports the standard OSPF point-to-multipoint
interface and also provides a proprietary point-to-multipoint solution for routers
running OSPF in star Frame Relay topologies.)
Figure 5-2, for example, shows a point-to-multipoint topology in which four AN
routers are connected by Frame Relay links to a BCN router. The AN routers are
the spokes of the topology, and the BCN router is the hub. All of the routers are
running OSPF. The BCN router is connected to the Frame Relay network over a
permanent virtual circuit (PVC) in group mode. The AN routers are connected
over PVCs in direct or group mode. For details on Frame Relay, see Configuring
Frame Relay Services.
Figure 5-2. Point-to-Multipoint Topology
OSPF point-to-multipoint interfaces provide an efficient means to connect routers
in a star topology. The routers are configured as follows:
Group Mode PVC
Group Mode or
Direct Mode PVC
BCN
AN4
AN3
AN2AN1
Frame Relay
IP0016A
Komentáře k této Příručce