The timers ripng command sets the values of RIPng timers.
The undo timers ripng command restores the default setting.
By default, RIPng timers use default values after RIP processes are enabled.
| Parameter | Description | Value |
|---|---|---|
| update |
Specifies the interval at which Update packets are sent. It is the basic timing parameter of the routing protocol. |
The value is an integer ranging from 1 to 86400, in seconds. The default value is 30 seconds. |
| age |
Specifies the period after which a RIPng route becomes invalid. The value must be at least three times the value of update. If no Update packet of a route is received within age, the route becomes invalid (unreachable). |
The value is an integer ranging from 1 to 86400, in seconds. The default value is 180 seconds. |
| suppress |
Specifies the period during which the optimal route is suppressed from being advertised. |
The value is an integer ranging from 0 to 86400, in seconds. In the current version, the value is 0 seconds. |
| garbage-collect |
Specifies the period from the time when the suppression timer times out and the time when the route is deleted from the routing table. |
The value is an integer ranging from 1 to 86400, in seconds. The default value is 120 seconds. |
Usage Scenario
To set the values of RIPng timers, run the timers ripng command, which improves the routing protocol performance.
The relationship between the values of four timers is: update < age and suppress < garbage-collect . For example, if the value of the update timer is greater than the value of the age timer, a device cannot notify changes of RIPng routes to its neighbors in time within the update time.Precautions
If the values of the four timers are set improperly, routes will become unstable, and route convergence will slow down. Generally, the four timers adopt the default values.