Date: Fri, 23 Oct 2020 14:14:10 +0100 From: Paul Thornton <paul@prt.org> To: freebsd-net@freebsd.org Subject: Getting netgraph stats Message-ID: <3b933e75-1ef2-cb80-dc9e-2426cddc4e21@prt.org>
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I am having a problem monitoring network stats on jails on a host. Scenario: One host, FreeBSD 12.1, with a small number of vnet jails. I'm using netgraph to bridge two or more VLANs from physical NICs into each jail - so each jail has at least 2 ngether interfaces which are the only NICs in the jail. All of this works well. And then I wanted to see what each of my ngethX interface statistics were doing - from my host. snmpd only sees the physical NICs (of course, because the ngeth ones don't appear any more since the jails are started - they all moved to the jails). As another approach, is there any way for me to get the network stats (in/out packets and in/out bytes) from my ngeth netgraph nodes directly? Or have I missed some other way? I really need to monitor the jails from the outside as I cannot guarantee I can reach snmpd running inside the jail (think of the jail as being a private environment where I cannot route my SNMP requests to). Thanks Paul.
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