3Com Switch 4800G 24-Port Configuration Manual page 314

314 C 28: OSPF C
HAPTER
n
n
ONFIGURATION
10.5.1.0/24
10.1.1.0/24
Routing for ASEs
Destination
3.1.2.0/24
Total Nets: 6
Intra Area: 2
In the above output, since Switch C resides in a normal OSPF area, its routing table
contains an external route.
4 Configure Area 1 as a Stub area.
# Configure Switch A.
[SwitchA] ospf
[SwitchA-ospf-1] area 1
[SwitchA-ospf-1-area-0.0.0.1] stub
[SwitchA-ospf-1-area-0.0.0.1] quit
[SwitchA-ospf-1] quit
# Configure Switch C.
[SwitchC] ospf
[SwitchC-ospf-1] area 1
[SwitchC-ospf-1-area-0.0.0.1] stub
[SwitchC-ospf-1-area-0.0.0.1] quit
[SwitchC-ospf-1] quit
# Display OSPF routing information on Switch C
[SwitchC] display ospf routing
OSPF Process 1 with Router ID 10.4.1.1
Routing for Network
Destination
0.0.0.0/0
10.2.1.0/24
10.3.1.0/24
10.4.1.0/24
10.5.1.0/24
10.1.1.0/24
Total Nets: 6
Intra Area: 2
When Switch C resides in the Stub area, a default route takes the place of the
external route.
# Filter Type-3 LSAs out the stub area
[SwitchA] ospf
[SwitchA-ospf-1] area 1
[SwitchA-ospf-1-area-0.0.0.1] stub no-summary
[SwitchA-ospf-1-area-0.0.0.1] quit
# Display OSPF routing information on Switch C.
17 Inter 10.2.1.1
5 Inter 10.2.1.1
Cost Type Tag
1 Type2 1
Inter Area: 3 ASE: 1
Routing Tables
Cost Type NextHop
4 Inter 10.2.1.1
3 Transit 10.2.1.2
7 Inter 10.2.1.1
3 Stub 10.4.1.1
17 Inter 10.2.1.1
5 Inter 10.2.1.1
Inter Area: 4 ASE: 0
10.2.1.1
10.2.1.1
NextHop
10.2.1.1
NSSA: 0
AdvRouter
10.2.1.1
10.2.1.1
10.2.1.1
10.4.1.1
10.2.1.1
10.2.1.1
NSSA: 0
0.0.0.1
0.0.0.1
AdvRouter
10.5.1.1
Area
0.0.0.1
0.0.0.1
0.0.0.1
0.0.0.1
0.0.0.1
0.0.0.1