IGRP Default Times Question

IGRP Default Times Question

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Subject Author Date
IGRP Default Times Question Fred Atkinson 11-17-2005
Posted by Fred Atkinson on November 17, 2005, 1:24 pm
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        IGRP timers are (by default):

                Update: 90 seconds
        
                Invalid: 3 x update

                Hold-down: 3 x update plus ten seconds

                Flush timer: 7 x update

        
        Question: If the update timer is changed by the administrator,
do the values of the other timers change according to these rules (3 x
new update value) or do they stay the same (3 x default update value)?


                                                Fred


Pure Networks
Posted by Merv on November 17, 2005, 3:47 pm
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I believe that all timers values must be specified in the timer basic
command within the IGRP routing process:

router igrp 1
timers basic update invalid holddown flush [sleeptime]
exit

Cisco recommends preserving the ratios between the default values
should new values for the timers be configured, but I do not believe it
calculates these automatically (i.e if you change one, then change all)


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