.. _example_protocols_rip_timers_timeout: ####### Timeout ####### Test to verify ``RIP`` **timeout timer** functionality for detecting unreachable routes. When a router stops receiving updates from a neighbor, the ``timeout timer`` automatically marks routes as **invalid** (``metric 16`` = unreachable) after the configured timeout period. This test simulates neighbor loss by removing RIP configuration from the advertising router. ********************** Test RIP Timeout Timer ********************** Description =========== Verify ``RIP`` **timeout timer** marks routes as **invalid** when updates stop arriving. Initially, **DUT0** advertises the route ``10.10.10.0/24`` to **DUT1**. Then ``RIP`` is deleted from **DUT0** to simulate a neighbor loss scenario. After ``5`` seconds without receiving updates, **DUT1** marks the route with ``metric 16`` which indicates the route is **unreachable**. The route remains visible in the routing table but is not used for forwarding traffic. Scenario ======== .. include:: timeout/testriptimeouttimer .. raw:: html