Configuring an additional metric for a RIP interface
Network requirements
As shown in Figure 9, run RIPv2 on all the interfaces of Switch A, Switch B, Switch C, Switch D, and Switch E.
Switch A has two links to Switch D. The link from Switch B to Switch D is more stable than that from Switch C to Switch D. Configure an additional metric for RIP routes received from VLAN-interface 200 on Switch A so Switch A prefers route 1.1.5.0/24 learned from Switch B.
Figure 9: Network diagram
![](images/image10.png)
Configuration procedure
Configure IP addresses for interfaces. (Details not shown.)
Configure basic RIP:
# Configure Switch A.
<SwitchA> system-view [SwitchA] rip 1 [SwitchA-rip-1] network 1.0.0.0 [SwitchA-rip-1] version 2 [SwitchA-rip-1] undo summary [SwitchA-rip-1] quit
# Configure Switch B.
<SwitchB> system-view [SwitchB] rip 1 [SwitchB-rip-1] network 1.0.0.0 [SwitchB-rip-1] version 2 [SwitchB-rip-1] undo summary
# Configure Switch C.
<SwitchC> system-view [SwitchB] rip 1 [SwitchC-rip-1] network 1.0.0.0 [SwitchC-rip-1] version 2 [SwitchC-rip-1] undo summary
# Configure Switch D.
<SwitchD> system-view [SwitchD] rip 1 [SwitchD-rip-1] network 1.0.0.0 [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 all active routes in the RIP database on Switch A.
[SwitchA] display rip 1 database 1.0.0.0/8, auto-summary 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 destined for network 1.1.5.0/24, with the next hops as Switch B (1.1.1.2) and Switch C (1.1.2.2), and with the same cost of 2.
Configure an additional metric for a RIP interface:
# Configure an additional metric of 3 for RIP-enabled interface VLAN-interface 200 on Switch A.
[SwitchA] interface vlan-interface 200 [SwitchA-Vlan-interface200] rip metricin 3
# Display all active routes in the RIP database on Switch A.
[SwitchA-Vlan-interface200] display rip 1 database 1.0.0.0/8, auto-summary 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 that only one RIP route reaches network 1.1.5.0/24, with the next hop as Switch B (1.1.1.2) and a cost of 2.