Configuring rip to advertise a summary route, Network requirements – H3C Technologies H3C S12500 Series Switches User Manual
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[SwitchD-rip-1] version 2
[SwitchD-rip-1] undo summary
# Configure Switch E.
<SwitchE> system-view
[SwitchE] rip 1
[SwitchE-rip-1] network 1.0.0.0
[SwitchE-rip-1] version 2
[SwitchE-rip-1] undo summary
# Display the IP routing table on Switch A.
[SwitchA] display rip 1 database
1.0.0.0/8, cost 0, ClassfulSumm
1.1.1.0/24, cost 0, nexthop 1.1.1.1, Rip-interface
1.1.2.0/24, cost 0, nexthop 1.1.2.1, Rip-interface
1.1.3.0/24, cost 1, nexthop 1.1.1.2
1.1.4.0/24, cost 1, nexthop 1.1.2.2
1.1.5.0/24, cost 2, nexthop 1.1.1.2
1.1.5.0/24, cost 2, nexthop 1.1.2.2
The output shows two RIP routes to network 1.1.5.0/24. Their next hops are Switch B (1.1.1.2)
and Switch C (1.1.2.2), with the same cost of 2. Switch C is the next hop router to reach network
1.1.4.0/24, with a cost of 1.
3.
Configure an additional metric of 3 for RIP-enabled VLAN-interface 200 on Switch A.
[SwitchA] interface vlan-interface 200
[SwitchA-Vlan-interface200] rip metricin 3
[SwitchA-Vlan-interface200] display rip 1 database
1.0.0.0/8, cost 0, ClassfulSumm
1.1.1.0/24, cost 0, nexthop 1.1.1.1, Rip-interface
1.1.2.0/24, cost 0, nexthop 1.1.2.1, Rip-interface
1.1.3.0/24, cost 1, nexthop 1.1.1.2
1.1.4.0/24, cost 2, nexthop 1.1.1.2
1.1.5.0/24, cost 2, nexthop 1.1.1.2
The output shows only one RIP route to network 1.1.5.0/24, with the next hop as Switch B
(1.1.1.2) and a cost of 2.
Configuring RIP to advertise a summary route
Network requirements
As shown in
, 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 has 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.
Configure route summarization on Switch C to advertise only the summary route 10.0.0.0/8, reducing
the routing table size of Switch D.