From: Frank (ocsic@web.de)
Date: Fri Nov 03 2006 - 09:03:52 ART
Frank schrieb:
Hi,
ok, no answer may mean, RTFM.
I did.
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094056.shtml
Dead---Time in seconds to wait before declaring a neighbor dead. By
default, the dead timer interval is four times the hello timer interval.
Hello---Interval time in seconds that a router sends an OSPF hello
packet. On broadcast and point-to-point links, the default is 10
seconds. On NBMA, the default is 30 seconds.
Wait---Timer interval that causes the interface to exit out of the wait
period and select a DR on the network. This timer is always equal to the
dead timer interval.
So that meas, only the hello and dead interval have to be taken into
account. And the time the algorythm takes to
calculate the new path.
So if i want 10 seconds being the maximum time for a dead route, then i set
hello + dead + 2 = 10
Frank
> Hi,
>
>
> if the question would be "to recognize" the other ospf end does not
> respond anymore,
> what would the right hello timer setup be.
>
> My understanding is, that every "wait" timer, an lsa is send.
>
> If there is no respond after "hold" time, then the connection will be
> declared
> dead after "dead" time.
>
> I read about 2 seconds for the SPF process to take place. If i want to
> recognize
> a dead connection, do i have to take all timers into account or just
> the hold and
> dead timers?
>
>
> Frank
>
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