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From: Harti Brandt <hartmut.brandt@dlr.de>
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Cc: freebsd-net@freebsd.org
Subject: Re: bsnmpd + netsnmp & 64bits counters problem,
 bce interface problems maybe ?
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On Thu, 28 May 2009, smallpox wrote:

s>hey guys, i've read
s>

[SNIP]

s>
s>in comparison to an intel em.. 32bit, it's linked at a gigabit though.. but no
s>heavy traffic there.
s>
s>--BEGIN WORKING
s>IF-MIB::ifInOctets.1 /15 sec: 1932426
s>IF-MIB::ifOutOctets.1 /15 sec: 24270520
s>IF-MIB::ifInOctets.1 /15 sec: 2199107
s>IF-MIB::ifOutOctets.1 /15 sec: 28672350
s>IF-MIB::ifInOctets.1 /15 sec: 2049073
s>IF-MIB::ifOutOctets.1 /15 sec: 22716321
s>IF-MIB::ifInOctets.1 /15 sec: 2036279
s>IF-MIB::ifOutOctets.1 /15 sec: 24361972
s>IF-MIB::ifInOctets.1 /15 sec: 2571021
s>IF-MIB::ifOutOctets.1 /15 sec: 32539047
s>IF-MIB::ifInOctets.1 /15 sec: 2416155
s>IF-MIB::ifOutOctets.1 /15 sec: 30571680
s>IF-MIB::ifInOctets.1 /15 sec: 2583795
s>IF-MIB::ifOutOctets.1 /15 sec: 35712392
s>IF-MIB::ifInOctets.1 /15 sec: 2665891
s>IF-MIB::ifOutOctets.1 /15 sec: 34761228
s>IF-MIB::ifInOctets.1 /15 sec: 2249559
s>IF-MIB::ifOutOctets.1 /15 sec: 27438273
s>
s>--END WORKING

Do I get it wrong or do the 32-bit counters also go up and down? Given 
that bsnmpd just retrieves the values from the kernel and sends them over 
SNMP without looking at the values (for the 32-bit counters) this looks 
rather like a problem in the kernel/driver. Do these drivers perhaps use 
multiple threads for receiving?

harti