Configuring Ospf To Advertise A Summary Route - HP 6125G Configuration Manual

<SwitchD> display ospf routing
Routing for Network
Destination
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
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
• 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 B and Switch C are
configured to redistribute OSPF routes and direct routes into BGP and 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.
OSPF Process 1 with Router ID 10.5.1.1
Routing Tables
Cost
22
10
25
10
12
Cost
1
Inter Area: 3
Figure 35:
Type NextHop
Inter 10.3.1.1
Transit 10.3.1.2
Inter 10.3.1.1
Stub 10.5.1.1
Inter 10.3.1.1
Type Tag
Type2 1
ASE: 1 NSSA: 0
95
AdvRouter
10.3.1.1
10.3.1.1
10.3.1.1
10.5.1.1
10.3.1.1
NextHop AdvRouter
10.3.1.1 10.4.1.1
Area
0.0.0.2
0.0.0.2
0.0.0.2
0.0.0.2
0.0.0.2