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BGP route summarization configuration example
Network requirements
As shown in Figure 59, run EBGP between Switch C and Switch D, so the internal network and external
network can communicate with each other.
In AS 65106, configure static routing between Switch A and Switch B, configure OSPF between Switch
B and Switch C, and configure OSPF to redistribute static routes, so the devices in the internal network
can communicate with each other.
Configure route summarization on Switch C so BGP advertises a summary route instead of the specific
networks 192.168.64.0/24, 192.168.74.0/24, and 192.168.99.0/24 to Switch D.
Figure 59 Network diagram
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
2. Configure static routing between Switch A and Switch B:
# Configure a default route with the next hop 192.168.212.1 on Switch A.
<SwitchA> system-view
[SwitchA] ip route-static 0.0.0.0 0 192.168.212.1
# Configure static routes to 192.168.64.0/24, 192.168.74.0/24, and 192.168.99.0/24 with
the same next hop 192.168.212.161 on Switch B.
<SwitchB> system-view
[SwitchB] ip route-static 192.168.64.0 24 192.168.212.161
[SwitchB] ip route-static 192.168.74.0 24 192.168.212.161
[SwitchB] ip route-static 192.168.99.0 24 192.168.212.161
3. Configure OSPF between Switch B and Switch C and configure OSPF on Switch B to redistribute
static routes:
# Configure OSPF to advertise the local network and enable OSPF to redistribute static routes on
Switch B.
[SwitchB] ospf
[SwitchB-ospf-1] area 0
[SwitchB-ospf-1-area-0.0.0.0] network 172.17.100.0 0.0.0.255
[SwitchB-ospf-1-area-0.0.0.0] quit
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