3Com 5500-EI PWR, Справочное руководство

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[Sysname] interface Vlan-interface 10
[Sysname-Vlan-interface10] rip version 2
[Sysname-Vlan-interface10] quit
[Sysname] rip
[Sysname-rip] undo summary
timers
Syntax
timers
{
update update-timer
|
timeout timeout-timer
} *
undo timers
{
update
|
timeout
} *
View
RIP view
Parameters
update-timer
: Length of the Period Update timer in seconds, in the range of 1 to 3600.
timeout-timer
: Length of the Timeout timer in seconds, in the range of 1 to 3600.
Description
Use the
timers
command to modify the lengths of the three RIP timers: Period Update, Timeout, and
Garbage-collection (which is usually set to a length four times that of the Period Update timer).
Use the
undo timers
command to restore the default settings.
By default, the lengths of the Period Update, Timeout, and Garbage-collection timers are 30 seconds,
180 seconds, and 120 seconds, respectively.
Generally, it is regarded that the value of the Garbage-collection timer is fixed at four times that of the
Period Update timer. Adjusting the Period Update timer will affect the Garbage-collection timer.
The modification of RIP timers is validated immediately.
As specified in RFC 1058, RIP is controlled by the above three timers:
z
The update timer defines the interval between routing updates.
z
The timeout timer defines the route aging time. If no routing update related to a route is received
within the aging time, the metric of the route is set to 16 in the routing table.
z
The garbage-collect timer defines the interval from when the metric of a route becomes 16 to when
it is deleted from the routing table. During the Garbage-Collect timer length, RIP advertises the
route with the routing metric set to 16. If no routing update is announced for that route after the
Garbage-Collect timer expires, the route will be deleted from the routing table.
Related commands:
display rip
.
Examples
# Set the values of the Period Update timer and the Timeout timer of RIP to 10 seconds and 30 seconds
respectively.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] rip
[Sysname-rip] timers update 10 timeout 30