Re: SNMP-TARGET-MIB::snmpTargetAddrTimeout interpreted incorrectly

the kernel is configured in tickless mode (CONFIG_NO_HZ=y) with a tickrate 
of 250 HZ (CONFIG_HZ_250=y).

Does the kernel tickrate have an influence on net-snmp timing?

regards
Martin



Von:    zhuyj <[email protected]>
An:     [email protected], 
Kopie:  [email protected], zhuyj <[email protected]>
Datum:  12.07.2013 10:36
Betreff:        Re: SNMP-TARGET-MIB::snmpTargetAddrTimeout interpreted 
incorrectly



Maybe tick of the kernel is changed. normally it is 100. From your 
description, maybe it is 1000.
Would you like to tell me the kernel of your computer?

On 07/12/2013 03:37 PM, [email protected] wrote:
that is what the definition says: measured in units of 0.01 seconds 

in my case, I have set SNMP-TARGET-MIB::snmpTargetAddrTimeout, which is of 
type TimeInterval to 1000 

1000 * 0.01 = 10 , so the timeout should be 10 seconds 

but in fact, informs are re-sent every 1 second instead of 10 seconds 


can you verify that behavior? 

regards 
Martin 




Von:        zhuyj <[email protected]> 
An:        [email protected], 
Kopie:        [email protected], zhuyj 
<[email protected]> 
Datum:        12.07.2013 09:31 
Betreff:        Re: SNMP-TARGET-MIB::snmpTargetAddrTimeout interpreted 
incorrectly 



TimeInterval TEXTUAL-CONVENTION
             STATUS       current
             DESCRIPTION
                     "A period of time, measured in units of 0.01
                     seconds."
             ::= INTEGER (0..2147483647)

maybe 10 * 0.01 = 0.1 ?


On 07/12/2013 03:06 PM, [email protected] wrote: 
any ideas on this issue? 

is TimeInterval defined as 0.1 seconds or seconds? 

is snmpTargetAddrTimeout implemented correctly? 

regards 
Martin Perzl 



Von:        [email protected] 
An:        [email protected], 
Datum:        04.07.2013 15:00 
Betreff:        SNMP-TARGET-MIB::snmpTargetAddrTimeout interpreted 
incorrectly 



I have set up an inform-sink with SNMP-TARGET-MIB::snmpTargetAddrTimeout 
set to 1000 (which is the default value in net-SNMP) 
SNMP-TARGET-MIB::snmpTargetAddrTimeout is of type TimeInterval, which is 
defined as a period of time measured in 0.01 seconds (see 
http://net-snmp.sourceforge.net/docs/mibs/snmpTargetMIB.html#TimeInterval 
for details) 

I am assuming, that informs will be re-sent (if not acknowledged) every 10 
seconds (1000*0.01 seconds = 10 seconds) 

But in fact, the retry interval, which I observed was 1 second (instead of 
the expected 10 seconds) 

I think this is a bug. Am I misunderstanding something? 


Regards 
Martin Perzl 
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