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Configuring ripng timers, Configuring split horizon and poison reverse, Configuring split horizon – H3C Technologies H3C SR8800 User Manual

Page 300: Configuring the poison reverse function

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Configuring RIPng timers

You can adjust RIPng timers to optimize the performance of the RIPng network.
To configure RIPng timers:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter RIPng view.

ripng [ process-id ] N/A

3.

Configure RIPng

timers.

timers { garbage-collect
garbage-collect-value | suppress

suppress-value | timeout
timeout-value
| update

update-value } *

Optional.
The RIPng timers have the following defaults:

30 seconds for the update timer

180 seconds for the timeout timer

120 seconds for the suppress timer

120 seconds for the garbage-collect timer

NOTE:

When adjusting RIPng timers, consider the network performance and perform unified configurations on
routers running RIPng to avoid unnecessary network traffic increase 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.

Configuring split horizon

The split horizon function disables a route learned from an interface from being advertised through the
same interface to prevent routing loops between neighbors.
To configure split horizon:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

N/A

3.

Enable the split horizon
function.

ripng split-horizon

Optional
Enabled by default

NOTE:

H3C recommends enabling split horizon to prevent routing loops.

Configuring the poison reverse function

The poison reverse function enables a route learned from an interface to be advertised through the
interface. However, the metric of the route is set to 16, which causes the route to be unreachable.