Configuring RIP to advertise a summary route
Network requirements
As shown in Figure 10, Switch A and Switch B run OSPF, Switch D runs RIP, and Switch C runs OSPF and RIP. Configure RIP to redistribute OSPF routes on Switch C so Switch D can learn routes destined for networks 10.1.1.0/24, 10.2.1.0/24, 10.5.1.0/24, and 10.6.1.0/24.
To reduce the routing table size of Switch D, configure route summarization on Switch C to advertise only the summary route 10.0.0.0/8 to Switch D.
Figure 10: Network diagram
Configuration procedure
Configure IP addresses for interfaces. (Details not shown.)
Configure basic OSPF:
# Configure Switch A.
<SwitchA> system-view [SwitchA] ospf [SwitchA-ospf-1] area 0 [SwitchA-ospf-1-area-0.0.0.0] network 10.5.1.0 0.0.0.255 [SwitchA-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 [SwitchA-ospf-1-area-0.0.0.0] quit
# Configure Switch B.
<SwitchB> system-view [SwitchB] ospf [SwitchB-ospf-1] area 0 [SwitchB-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 [SwitchB-ospf-1-area-0.0.0.0] network 10.6.1.0 0.0.0.255 [SwitchB-ospf-1-area-0.0.0.0] quit
# Configure Switch C.
<SwitchC> system-view [SwitchC] ospf [SwitchC-ospf-1] area 0 [SwitchC-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 [SwitchC-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 [SwitchC-ospf-1-area-0.0.0.0] quit [SwitchC-ospf-1] quit
Configure basic RIP:
# Configure Switch C.
[SwitchC] rip 1 [SwitchC-rip-1] network 11.3.1.0 [SwitchC-rip-1] version 2 [SwitchC-rip-1] undo summary
# Configure Switch D.
<SwitchD> system-view [SwitchD] rip 1 [SwitchD-rip-1] network 11.0.0.0 [SwitchD-rip-1] version 2 [SwitchD-rip-1] undo summary [SwitchD-rip-1] quit
# Configure RIP to redistribute routes from OSPF process 1 and direct routes on Switch C.
[SwitchC-rip-1] import-route direct [SwitchC-rip-1] import-route ospf 1 [SwitchC-rip-1] quit
# Display the IP routing table on Switch D.
[SwitchD] display ip routing-table Destinations : 15 Routes : 15 Destination/Mask Proto Pre Cost NextHop Interface 0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0 10.1.1.0/24 RIP 100 1 11.3.1.1 Vlan300 10.2.1.0/24 RIP 100 1 11.3.1.1 Vlan300 10.5.1.0/24 RIP 100 1 11.3.1.1 Vlan300 10.6.1.0/24 RIP 100 1 11.3.1.1 Vlan300 11.3.1.0/24 Direct 0 0 11.3.1.2 Vlan300 11.3.1.0/32 Direct 0 0 11.3.1.2 Vlan300 11.3.1.2/32 Direct 0 0 127.0.0.1 InLoop0 11.4.1.0/24 Direct 0 0 11.4.1.2 Vlan400 11.4.1.0/32 Direct 0 0 11.4.1.2 Vlan400 11.4.1.2/32 Direct 0 0 127.0.0.1 InLoop0 127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0 127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0 127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0 127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
Configure route summarization:
# Configure route summarization on Switch C and advertise only the summary route 10.0.0.0/8.
[SwitchC] interface vlan-interface 300 [SwitchC-Vlan-interface300] rip summary-address 10.0.0.0 8
# Display the IP routing table on Switch D.
[SwitchD] display ip routing-table Destinations : 12 Routes : 12 Destination/Mask Proto Pre Cost NextHop Interface 0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0 10.0.0.0/8 RIP 100 1 11.3.1.1 Vlan300 11.3.1.0/24 Direct 0 0 11.3.1.2 Vlan300 11.3.1.0/32 Direct 0 0 11.3.1.2 Vlan300 11.3.1.2/32 Direct 0 0 127.0.0.1 InLoop0 11.4.1.0/24 Direct 0 0 11.4.1.2 Vlan400 11.4.1.0/32 Direct 0 0 11.4.1.2 Vlan400 11.4.1.2/32 Direct 0 0 127.0.0.1 InLoop0 127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0 127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0 127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0 127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0