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Subject: Re: SNMP/No Bufferspace
To: Larry Rosenman <ler@lerctr.org>, Freebsd net <freebsd-net@freebsd.org>
References: <fde5e5f1b69c85fd5c7a7ab12e3d7167@lerctr.org>
From: Eugene Grosbein <eugen@grosbein.net>
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Date: Tue, 4 Jun 2019 00:23:08 +0700
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03.06.2019 22:56, Larry Rosenman wrote:

> I have a mrtg job that runs every 5 minutes on a FreeBSD-CURRENT box and gets this randomly:
> 
> SNMP Error:
> send_query: No buffer space available

[skip]

> How can I debug this?

Your outgoing network interface stalls for some reason.
Where is this traffic directed to? Some kind of VPN tunnel? Physical NIC that looses link?
Some Wifi or mobile network?