R
OUTING
I
NFORMATION
P
ROTOCOL
(RIP)
37-11
timers basic
This command configures the RIP update timer, timeout timer, and
garbage- collection timer. Use the no form to restore the defaults.
Syntax
timers basic update-seconds
no timers basic
update-seconds – Sets the update timer to the specified value, sets the
timeout time value to 6 times the update time, and sets the
garbage- collection timer to 4 times the update time.
(Range for update timer: 15-60 seconds)
Command Mode
Router Configuration
Default Setting
• Update: 30 seconds
• Timeout: 180 seconds
• Garbage collection: 120 seconds
Command Usage
•The update timer sets the rate at which updates are sent. This is the
fundamental timer used to control all basic RIP processes.
•The timeout timer is the time after which there have been no update
messages that a route is declared dead. The route is marked
inaccessible (i.e., the metric set to infinite) and advertised as
unreachable. However, packets are still forwarded on this route.
• After the timeout interval expires, the router waits for an interval
specified by the garbage-collection timer before removing this entry from
the routing table. This timer allows neighbors to become aware of an
invalid route prior to purging it.
• Setting the update timer to a short interval can cause the router to
spend an excessive amount of time processing updates.
• These timers must be set to the same values for all routers in the
network.
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