Cyclades-PR2000
OSPF
The OSPF (Open Shortest Path First) routing protocol is significantly more complicated than RIP. The determination of which protocol is better suited to a given network is beyond the scope of this manual. An example network using OSPF is given in Figure 9.3.
AREA 1
Router 2
Router 0
Router 1
Link 1
Router 3
Router 4
AN AUTONOMOUS SYSTEM
Area Border
Routers:
R3, R6, R8
AS Boundary
Router: R5
AREA 0
(Backbone)
Router 5
Router 6
Router 7
To Another
Autonomous System
AREA 2
Virtual
Link
AREA 3
Router 8
Router 9
FIGURE 9.3 OSPF EXAMPLE
Chapter 9 - Routing Protocols | 69 |