Configuring split horizon and poison reverse, Enabling split horizon – H3C Technologies H3C S7500E Series Switches User Manual
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To do…
Use the command…
Remarks
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.
Based on network performance, you need to make RIP timers of RIP routers identical to each other to
avoid unnecessary traffic or route oscillation.
Configuring Split Horizon and Poison Reverse
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.
Enabling split horizon
The split horizon function disables an interface from sending routes received from the interface to
prevent routing loops between adjacent routers.
Follow these steps to enable split horizon:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
—
Enable split horizon
rip split-horizon
Optional
Enabled by default
Disabling the split horizon function on a point-to-point link does not take effect.