Routing Configuration 83
External routes are those imported into OSPF from other routing protocol or processes. OSPF computes
the path cost differently for external type 1 and external type 2 routes. The cost of an external type 1
route is the cost advertised in the external LSA plus the path cost from the calculating router to the
ASBR. The cost of an external type 2 route is the cost advertised by the ASBR in its external LSA.
NOTE: The following example uses the CLI to conf igure OSPF. You can also use the Web interface. Click Routing >
OSPF or IPv6 > OSPFv3 in the navigation tree.
CLI Examples
Example 1: Configuring an OSPF Border Router and Setting Interface Costs
The following example shows you how to configure an OSPF border router areas and interfaces in the
switch.
Figure 4-3. OSPF Example Network Diagram: Border Router
VLAN 50
192.150.2.1
VLAN 70
192.150.2.2
VLAN 80
192.150.3.1
VLAN 90
192.150.4.1