H3C Technologies H3C SR8800 - Manual (Page 127)

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• Router C, Router D, and Router E are in AS 100, running OSPF.
• An EBGP connection is established between Router B and Router C. Router B and Router C are
configured to redistribute OSPF routes and direct routes into BGP and BGP routes into OSPF.
• Router B is configured with route summarization and advertises only the summary route 10.0.0.0/8
to reduce Router A's routing table size.
Figure 40 Network diagram
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown)
2. Configure OSPF basic functions:
# Configure Router A.
<RouterA> system-view
[RouterA] ospf
[RouterA-ospf-1] area 0
[RouterA-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255
[RouterA-ospf-1-area-0.0.0.0] quit
[RouterA-ospf-1] quit
# Configure Router B.
<RouterB> system-view
[RouterB] ospf
[RouterB-ospf-1] area 0
[RouterB-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255
[RouterB-ospf-1-area-0.0.0.0] quit
[RouterB-ospf-1] quit
# Configure Router C.
<RouterC> system-view
[RouterC] ospf
[RouterC-ospf-1] area 0
[RouterC-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
Router A
Router B
Router D
Router E
Router C
GE3/1/1
10.1.1.1/24
GE3/1/1
10.1.1.2/24
GE3/1/1
10.2.1.2/24
GE3/1/3
10.2.1.1/24
GE3/1/2
11.1.1.2/24
GE3/1/2
11.1.1.1/24
EBGP
AS 200
AS 100
GE3/1/1
11.2.1.1/24
GE3/1/1
11.2.1.2/24
GE3/1/2
10.3.1.1/24
GE3/1/2
10.4.1.1/24