998 Configuring OSPF and OSPFv3
Figure 34-37. OSPF Configuration—Virtual Link
Switch B is an ABR that directly connects Area 0 to Area 1. Note that in the
previous example, Switch B connected to a stub area and an NSSA. Virtual
links cannot be created across stub areas or NSSAs.
The following commands define a virtual link that traverses Area 1 to Switch
C (5.5.5.5).
To configure Switch B:
1
Configure the virtual link to Switch C for IPv4.
console#configure
console(config)#router ospf
console(config-router)#area 0.0.0.1 virtual-link
5.5.5.5
console(config-router)#exit
2
Configure the virtual link to Switch C for IPv6.
console#configure
console(config)#ipv6 router ospf
Area 2
0.0.0.2
Area 1
0.0.0.1
Area 0
0.0.0.0
Area Border
Router
Internal
Router
Area Border
Router
Backbone
Router
VLAN 10
10.1.2.2
3000:1:2::
Switch B
2.2.2.2
Switch C
5.5.5.5
Virtual Link
VLAN 11
10.1.101.1
3000:1:101::
VLAN 7
10.1.2.1
3000:1:2::
To Next Page
Loading...
