Cisco Systems 78-11741-02 manual IPC-386, Example Ospf Autonomous System Network Map

Configuring IP Routing Protocol-Independent Features

IP Routing Protocol-Independent Configuration Examples

Figure 63 Example OSPF Autonomous System Network Map

	OSPF domain (BGP autonomous system 50000)
			Area 1
Router A		Router B
E1	Interface address:	E2	Interface address:
			192.168.1.2
	192.168.1.1
		Network: 192.168.1.0
	E3	Interface address:
		192.168.1.3

Router C

S0 Interface address: 192.168.2.3

Network: 192.168.2.0

S1		Area 0
Router D	Interface address:
	192.168.2.4
E4
Interface address:
10.0.0.4
Network: 10.0.0.0	Interface address:
E5	10.0.0.5
		Interface address:
Router E	S2	172.16.1.5

Network: 172.16.1.0

S1030a

Remote address: 172.16.1.6

in autonomous system 60000

In this configuration, five routers are configured in OSPF autonomous system 1:

•Router A and Router B are both internal routers within area 1.

•Router C is an OSPF ABR. Note that for Router C, area 1 is assigned to E3 and Area 0 is assigned to S0.

•Router D is an internal router in area 0 (backbone area). In this case, both network router configuration commands specify the same area (area 0, or the backbone area).

•Router E is an OSPF ASBR. Note that BGP routes are redistributed into OSPF and that these routes are advertised by OSPF.

Cisco IOS IP Configuration Guide

IPC-386