#1759 5.4 network statistics only updated every 5 sec

[Anonymous]

Hello List!

I've installed net-snmp v5.2 from source-code on my Gentoo Linux machine with Linux Kernel 2.6.19.2 on an i686 Celeron (Coppermine) GenuineIntel Computer.

My snmpd.conf file contains only one line with the read only communityname.

Now, when i try to use snmpwalk and select my outgoing WAN-Device, the counters will only be updated every 5 seconds.

This give very bad results on Network-Grapher Programs like SNMPTrafficGrapher.

What is wrong with my Net-SNMP?

Best Regards,
Michael Rack
Germany.

[Thomas Anders]

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If this really is 5.2, please retry with 5.4 instead. If it's 5.4 already, please say so.

[Nobody/Anonymous]

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Oh sorry this was my mistake. It's v5.4 the newest release. I got it from http://sourceforge.net/project/showfiles.php?group_id=12694&package_id=11571&release_id=466297

I wrote v5.2 because i'm now trying to install v5.2 in my machine.

My reported bug takes care of net-snmp v5.4.

[Michael Rack - RSM Freilassing]

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So, now 5.2.3 was compiled on my system and i got the same result.

I compiled v5.2 and v5.4 with the Protocoll SNMPv2.
I got this very silly result on various machines that runs Gentoo Linux.

Mike.

[Thomas Anders]

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The update every 5 sec by default is probably a deliberate compromise between "update as often as possible" and "don't waste too many agent cycles". I'd suggest to ask on the mailing list (search the archives first) where this default value can be adjusted.

[Michael Rack - RSM Freilassing]

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Hi. Now i tried many versions an now i'm reached v5.2 (not v5.2.3). The results of v5.2 are fine.
The counters are allready up2date without any delay. So it should be! Now i'm happy :-D

Yours, Mike.

[Dave Shield]

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Yes - caching is a deliberate design decision,
for performance reasons.

Note that the caching granularity of many tables
can be controlled dynamically, via the
NET-SNMP-AGENT-MIB::nsCacheTimeout MIB object.

You can use this object to tweak the caching of the
ifTable data (or nsCacheStatus) to turn off caching
altogether.