H3C Technologies H3C S12500 Series Switches - Manual (Page 47)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter RIP view.
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. 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 30
seconds, 180 seconds, 120
seconds, and 120 seconds,
respectively.
Configuring split horizon and poison reverse
The split horizon and poison reverse functions can avoid routing loops. If both split horizon and poison
reverse are configured, only the poison reverse function takes effect.
Enabling split horizon
The split horizon function disables an interface from sending routing information back on the same
interface the information was learned from. This prevents routing loops between adjacent routers.
Disabling the split horizon function does not take effect on a point-to-point link.
To enable 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 split horizon. rip split-horizon
Optional.
Enabled by default.
Enabling poison reverse
The poison reverse function allows an interface to advertise the routes back to the sending router. The
metric of these routes is always set to 16 (unreachable) to avoid routing loops between neighbors.
To enable poison reverse:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable poison reverse. rip poison-reverse Disabled by default.