Tuning and optimizing rip networks, Configuring rip timers, Configuring split horizon and poison reverse – H3C Technologies H3C S10500 Series Switches User Manual

Page 47

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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.

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