IP Routing Commands
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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.
Example
This example sets the update timer to 40 seconds. The timeout timer is
subsequently set to 240 seconds, and the garbage-collection timer to 160 seconds.
Console(config-router)#timers basic 15
Console(config-router)#
Summary of Contents for 8926EM
Page 6: ...ii ...
Page 34: ...Getting Started ...
Page 44: ...Introduction 1 10 1 ...
Page 62: ...Initial Configuration 2 18 2 ...
Page 64: ...Switch Management ...
Page 76: ...Configuring the Switch 3 12 3 ...
Page 118: ...Basic Management Tasks 4 42 4 ...
Page 164: ...User Authentication 6 28 6 ...
Page 176: ...Access Control Lists 7 12 7 ...
Page 284: ...Quality of Service 14 8 14 ...
Page 294: ...Multicast Filtering 15 10 15 ...
Page 300: ...Domain Name Service 16 6 16 ...
Page 310: ...Dynamic Host Configuration Protocol 17 10 17 ...
Page 320: ...Configuring Router Redundancy 18 10 18 ...
Page 344: ...IP Routing 19 24 19 ...
Page 356: ...Unicast Routing 20 12 20 Web Click Routing Protocol RIP Statistics Figure 20 5 RIP Statistics ...
Page 386: ...Unicast Routing 20 42 20 ...
Page 388: ...Command Line Interface ...
Page 400: ...Overview of the Command Line Interface 21 12 21 ...
Page 466: ...SNMP Commands 24 16 24 ...
Page 520: ...Access Control List Commands 26 18 26 ...
Page 546: ...Rate Limit Commands 30 2 30 ...
Page 612: ...VLAN Commands 34 24 34 ...
Page 626: ...Class of Service Commands 35 14 35 ...
Page 670: ...DHCP Commands 39 16 39 ...
Page 716: ...IP Interface Commands 41 36 41 ...
Page 768: ...IP Routing Commands 42 52 42 ...
Page 770: ...Appendices ...
Page 791: ......