Re: [tkined] SNMP request retries

Juergen Schoenwaelder (schoenw@ibr.cs.tu-bs.de)
Sun, 14 Feb 1999 12:21:10 +0100

>>>>> James Song writes:

James> I am using Tnm 3.0 and have a question about SNMP request
James> retries. According to the manual, the retries are made during
James> the timeout interval and it is what I observed. But I would
James> like to know how the interval between retries are
James> decided. Originally I thought that the retry is made after each
James> timeout. However when I really check this feature and found my
James> thinking was wrong. It seems to me now that the interval
James> between retries is the timeout interval divided by the number
James> of retries.

Right. The -timeout session option specifies the time interval in
which the engine accepts a response. The number of retries configured
with the -retries are send during this timeout interval. Currently,
the engine simply devides the interval by the number of retries.
(Other strategies are possible - e.g. an exponential backoff
distribution of the retries during the timeout interval. But so far,
this never got implemented.)
Juergen

-- 
Juergen Schoenwaelder  schoenw@ibr.cs.tu-bs.de http://www.cs.tu-bs.de/~schoenw
Technical University Braunschweig, Dept. Operating Systems & Computer Networks
Bueltenweg 74/75, 38106 Braunschweig, Germany.        (Tel. +49 531 / 391 3289)
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