Configuring Ospf To Advertise A Summary Route - HP 4800G Series Configuration Manual

10.1.1.0/24
Routing for ASEs
Destination
3.1.2.0/24
Total Nets: 6
Intra Area: 2

Configuring OSPF to Advertise a Summary Route

Network requirements
As shown in the following figure:
Switch A and Switch B are in AS 200, which runs OSPF.
Switch C, Switch D, and Switch E are in AS 100, which runs OSPF.
An eBGP connection is established between Switch B and Switch C. Switch C is configured to
redistribute OSPF routes into BGP.
Switch B is configured to redistribute BGP routes into OSPF. Switch B is configured with route
summarization and advertises only the summary route 10.0.0.0/8 to reduce Switch A's routing table
size.
Figure 1-23 Network diagram for OSPF summary route advertisement (on switches)
Configuration procedure
1) Configure IP addresses for interfaces (omitted)
2) Configure OSPF basic functions
# Configure Switch A.
<SwitchA> system-view
[SwitchA] ospf
[SwitchA-ospf-1] area 0
[SwitchA-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255
12 Inter
Cost Type
1 Type2
Inter Area: 3 ASE: 1
10.3.1.1 10.3.1.1
Tag NextHop
1 10.3.1.1
NSSA: 0
1-51
0.0.0.2
AdvRouter
10.4.1.1