SMC Networks WPCI-G - annexe 1, Management Manual

Page: 803 / 846

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.