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Today's Topics:
1. Re: updatedevices.pl endless loop (Anton Berezin)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Jan 2015 19:34:49 +0100
From: Anton Berezin <[email protected]>
Subject: Re: [Netdot-users] updatedevices.pl endless loop
To: Patrick Landry <[email protected]>
Cc: netdot-users <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
Patrick,
On Wed, Jan 21, 2015 at 11:24:22AM -0600, Patrick Landry wrote:
> ----- Original Message -----
>
> > What happens if you do snmpbulkwalk of the ip.35.1.4.260.1.4 table by
> > hand? Does it terminate? Does it report anything unusual?
>
> > \Anton.
> > --
> > Our society can survive even a large amount of irrational regulation.
> > -- John McCarthy
>
> Thanks Anton. Here is the output of snmpbulkwalk:
>
> # snmpbulkwalk -v 2c -c COMM-STRING CLIENT-IP ip.35.1.4.260.1.4
> IP-MIB::ipNetToPhysicalPhysAddress.260.ipv4."10.17.60.2" = STRING:
> d4:be:d9:6a:ae:1e
> Error: OID not increasing:
> IP-MIB::ipNetToPhysicalPhysAddress.260.ipv4."10.17.60.82"
> >= IP-MIB::ipNetToPhysicalPhysAddress.260.ipv4."10.17.60.2"
>
> Does this indicate an error in the device's SNMP agent implementation?
Yes, but a well-behaving client should detect that and stop (as snmpbulkwalk
does).
If you do not have any SNMPv3 devices, and your Netdot installation is
reasonably recent, and you are brave, :)
you might want to enable an experimental USE_SNMP_QUERY_ENGINE=1 setting
as a workaround.
It was supposed to be a performance improvement feature, but I know for a
fact that SQE handles non-increasing OIDs fine, so it will be a nice side
effect.
The setup might be a tad tricky, since you will also need to run a separate
daemon (https://github.com/tobez/snmp-query-engine), and install a couple of
extra Perl modules. Ask me if you decide to go this route and need help.
\Anton.
--
Our society can survive even a large amount of irrational regulation.
-- John McCarthy
------------------------------
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