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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
timers basic
timers basic
To adjust the Routing Information Protocol (RIP) network timers, use the
timers basic
command. To
restore the default timers, use the
no
form of this command.
timers basic
update
invalid
holddown
flush
no timers basic
Syntax Description
Command Default
update
: 30 seconds
invalid
: 180 seconds
holddown
: 180 seconds
flush
: 240 seconds
Command Modes
Router address-family configuration mode
Command History
Usage Guidelines
You can modify the basic timing parameters for RIP. These timers must be the same for all routers and
servers in the network.
update
Rate (in seconds) at which updates are sent. The range is from 5 to 4,294,967,295.
The default is 30 seconds.
invalid
Interval of time (in seconds) after which a route is declared invalid; it should be at
least three times the value of the
update
argument. A route becomes invalid when no
updates refresh the route. The route then enters into a
holddown
state where it is
marked as inaccessible and advertised as unreachable. However, the route is still
used to forward packets. The range is from 1 to 4,294,967,295. The default is 180
seconds.
holddown
Interval (in seconds) during which routing information regarding better paths is
suppressed; it should be at least three times the value of the
update
argument. A route
enters into a
holddown
state when an update packet is received that indicates that the
route is unreachable. The route is marked as inaccessible and advertised as
unreachable. However, the route is still used to forward packets. When holddown
expires, routes advertised by other sources are accepted and the route is no longer
inaccessible. The range is from 0 to 4,294,967,295. The default is 180 seconds.
flush
Amount of time (in seconds) that must pass before the route is removed from the
routing table; the interval specified should be greater than the sum of the
invalid
argument plus the
holddown
argument. If it is less than this sum, the proper
holddown
interval cannot elapse, which results in a new route being accepted before
the
holddown
interval expires. The range is from 1 to 4,294,967,295. The default is
240 seconds.
Release
Modification
5.0(3)A1(1)
This command was introduced.
