Tuning and optimizing rip networks, Configuring rip timers, Configuring split horizon and poison reverse – H3C Technologies H3C S10500 Series Switches User Manual
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To do…
Use the command…
Remarks
Configure a default metric for 
redistributed routes 
default cost value
Optional 
The default metric of a redistributed 
route is 0.
Redistribute routes from another 
protocol 
import-route protocol [ process-id 
| all-processes | allow-ibgp ] [ cost 
cost | route-policy
route-policy-name | tag tag ] *
Required 
No redistribution is configured by 
default. 
NOTE:
Only active routes can be redistributed. Use the display ip routing-table protocol command to display 
route state information. 
Tuning and optimizing RIP networks
Complete the following tasks before tuning and optimizing RIP networks:
•
Configure network addresses for interfaces, and make neighboring nodes reachable to each other
•
Configure RIP basic functions
Configuring RIP timers
You can change the RIP network convergence speed by adjusting RIP timers. 
Follow these steps to configure RIP timers: 
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter RIP view
rip [ process-id ] [ vpn-instance 
vpn-instance-name ] 
––
Configure values for RIP timers
timers { garbage-collect 
garbage-collect-value | suppress 
suppress-value | timeout
timeout-value | update
update-value } *
Optional 
The default update timer, timeout 
timer, suppress timer, and 
garbage-collect timer are 30s,
180s, 120s and 120s
respectively.
NOTE:
Based on network performance, make RIP timers of RIP routers identical to each other to avoid 
unnecessary traffic or route oscillation. 
Configuring split horizon and poison reverse
NOTE:
If both split horizon and poison reverse are configured, only the poison reverse function takes effect.
The split horizon and poison reverse functions can avoid routing loops.