Net-SNMP caching?

Martin Townsend <[email protected]>
Newsgroups gmane.network.net-snmp.user
Organization Power Oasis
Message-ID <[email protected]>
Hi,

Does the Net-SNMP library cache results of a SNMP Get Request?   I have 
an application that performs an SNMP Get Request, checks to see if the 
value is different that what the application wants and if so send a Set 
Request to change it.  This happens every second.  The problem I'm 
seeing is that after the set request the next get request returns the 
value previous to the set.

e.g. we want to set x to 42
SNMP GET REQ x
SNMP GET RESP x=41
x != 42 so we
SNMP SET REQ x=42
SNMP SET RESP x=42

a second later
SNMP GET REQ x
SNMP GET RESP x=41

I've checked that the value of x has actually changed on the SNMP device 
by using the snmpget command line utility so I can only think that the 
Net-SNMP library is caching the initial Get Request and returning the 
old value for further Get requests?  Can anyone confirm this and if so 
does anyone know how to turn it off?

Thanks in advance,
Martin.


-- 
Martin Townsend
Power*Oasis*
Suite 1, Unit 41
Shrivenham Hundred Business Park
Majors Road
Watchfield
Swindon
Wilts SN6 8TZ

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