Timers Basic - Zte ZXR10 8900 Series Command Reference Manual

Related
Commands
Purpose
Command Modes
Syntax
Syntax
Description
Instructions
network

timers basic

Use this command to adjust the timer of RIP network . Restore
the default timer with the no form of this command.
Router configuration
timers basic <update><invalid><holddown><flush>
no timer basic
<update>
<invalid>
<holddown>
<flush>
The RIP basic timer is adjustable. Since the RIP executes the asyn-
chronous routing algorithm, it is very important to keep the con-
sistence of timers of all routers and access servers of the network.
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The rate of update sending, unit: second,
range: 1~65535, default: 30 seconds. This is
the basic parameter of the routing protocol
Period before route's advertisement of
invalidity, unit: second, range: 1~65535. It
is recommended to set this value as more
than 3 times of the value of the parameter
update, default: 180. During the slot of
the parameter invalid from the moment of
receiving some route, if there is no refreshing
of the route , it will be ineffective and then
in the state of holdown. If the parameter
holddown is configured as 0, the flush timer
will be directly started
Period for suppressing a better route, unit:
second, range: 0~65535. It is recommended
to set this value as more than 3 times of
the value of the parameter update, default:
180. When routers receive update packets
and the received routes are unreachable, or
in case that the route is ineffective because
the invalid timer expires, the route will be
in the state of holddown and be marked
as inaccessible. However, the route will
be still used to forward packets. After the
slot of holddown, the route advertised by
other sources is acceptable, and the route is
accessible again
Period from the invalidity of route to the
clearing of it, unit: second, range: 1~65535,
default: 240. The specified value of it must
be more than or equal to the holddown value.
If it is less than the holddown value, There will
be new routes received before the holdtime
timer expires
Chapter 2 RIP Protocol
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