HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 208
Configuring split horizon and poison reverse, Configuring split horizon
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To configure RIPng timers: Step 1. Enter system view. 2. Enter RIPng view. 3. Configure RIPng timers. Command Remarks system-view N/A ripng [ process-id ] N/A 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 Configuring split horizon and poison reverse 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. HP recommends enabling split horizon to prevent routing loops. To configure split horizon: Step 1. Enter system view. 2. Enter interface view. 3. Enable the split horizon function. Command system-view interface interface-type interface-number ripng split-horizon Remarks N/A N/A Optional. Enabled by default. 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 (unreachable). To configure poison reverse: Step 1. Enter system view. 2. Enter interface view. 3. Enable the poison reverse function. Command system-view interface interface-type interface-number ripng poison-reverse Remarks N/A N/A Disabled by default. 198
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