PLANET XGS3-24040 - Manual (Page 293)

Chapter 37 OSPF
37-17
We can configure as follows:
Switch(config)#interface vlan 1
Switch(Config-if-Vlan1)#ip address 1.1.1.1 255.255.255.0
Switch(Config-if-Vlan1)#exit
Switch(config)#interface vlan 2
Switch(Config-if-Vlan2)#ip address 2.2.2.2 255.255.255.0
Switch(Config-if-Vlan2)#exit
Switch(config)#router ospf 10
Switch(config-router)#network 2.2.2.0/24 area 1
Switch(config-router)#exit
Switch(config)#router ospf 20
Switch(config-router)#network 1.1.1.0/24 area 1
Switch(config-router)#redistribute ospf 10
Switch(config-router)#exit
37.3.2 Configuration Examples of OSPF VPN
Figure 5-4 OSPF VPN Example
The above figure shows that a network consists of three Layer 3 switches in which the switchA as PE,
SwitchB and SwitchC as CE1 and CE2. The PE is connected to CE1 and CE2 through vlan1 and vlan2. The
routing messages are exchanged between PE and CE through OSPF protocol.
a) SwitchA, the Layer 3 switch as PE
Configure VPN route/transmitting examples vpnb and vpnc
SwitchA#config
SwitchA(config)#ip vrf vpnb
SwitchA(config-vrf)#
SwitchA(config-vrf)#exit
SwitchA#(config)
SwitchA(config)#ip vrf vpnc
SwitchA(config-vrf)#
SwitchA(config-vrf)#exit
SWITCHA
SWITCHB
SWITCHC
Interface
vlan1:10.1.1.1/24
Interface
vlan1:10.1.1.2/24
Interface
vlan2:20.1.1.1/24
Interface
vlan1:20.1.1.2/24