HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 39
Tuning and optimizing RIP networks, Configuration prerequisites, Configuring RIP timers
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Step 1. Enter system view. 2. Enter RIP view. 3. Redistribute routes from another routing protocol. 4. (Optional.) Configure a default cost for redistributed routes. Command Remarks system-view N/A rip [ process-id ] [ vpn-instance vpn-instance-name ] N/A import-route protocol [ process-id | all-processes | allow-ibgp ] [ cost cost | route-policy route-policy-name | tag tag ] * By default, RIP route redistribution is disabled. This command can redistribute only active routes. To view active routes, use the display ip routing-table protocol command. default cost value The default setting is 0. Tuning and optimizing RIP networks Configuration prerequisites Before you tune and optimize RIP networks, complete the following tasks: • Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes. • Configure basic RIP. Configuring RIP timers You can change the RIP network convergence speed by adjusting the following RIP timers: • Update timer-Specifies the interval between route updates. • Timeout timer-Specifies the route aging time. If no update for a route is received within the aging time, the metric of the route is set to 16. • Suppress timer-Specifies how long a RIP route stays in suppressed state. When the metric of a route is 16, the route enters the suppressed state. A suppressed route can be replaced by an updated route that is received from the same neighbor before the suppress timer expires and has a metric less than 16. • Garbage-collect timer-Specifies the interval from when the metric of a route becomes 16 to when it is deleted from the routing table. RIP advertises the route with a metric of 16. If no update is announced for that route before the garbage-collect timer expires, the route is deleted from the routing table. IMPORTANT: To avoid unnecessary traffic or route flapping, configure identical RIP timer settings on RIP routers. To configure RIP timers: Step 1. Enter system view. Command system-view Remarks N/A 28