HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 40
Configuring split horizon and poison reverse, Enabling split horizon, Enabling poison reverse
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Step 2. Enter RIP view. Command rip [ process-id ] [ vpn-instance vpn-instance-name ] 3. Configure RIP timers. timers { garbage-collect garbage-collect-value | suppress suppress-value | timeout timeout-value | update update-value } * Remarks N/A By default: • The garbage-collect timer is 120 seconds. • The suppress timer is 120 seconds. • The timeout timer is 180 seconds. • The update timer is 30 seconds. Configuring split horizon and poison reverse The split horizon and poison reverse functions can prevent routing loops. If both split horizon and poison reverse are configured, only the poison reverse function takes effect. Enabling split horizon Split horizon disables RIP from sending routes through the interface where the routes were learned to prevent routing loops between adjacent routers. To enable split horizon: Step 1. Enter system view. 2. Enter interface view. 3. Enable split horizon. Command system-view interface interface-type interface-number rip split-horizon Remarks N/A N/A By default, split horizon is enabled. Enabling poison reverse Poison reverse allows RIP to send routes through the interface where the routes were learned, but the metric of these routes is always set to 16 (unreachable) to avoid routing loops between neighbors. To enable poison reverse: Step 1. Enter system view. 2. Enter interface view. 3. Enable poison reverse. Command system-view interface interface-type interface-number rip poison-reverse Remarks N/A N/A By default, poison reverse is disabled. Configuring the maximum number of ECMP routes Perform this task to implement load sharing over ECMP routes. To configure the maximum number of ECMP routes: 29
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