Date: Tue, 27 Aug 2013 16:26:34 -0600 From: John Nielsen <lists@jnielsen.net> To: carlopmart <carlopmart@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: Options to monitor/sniff network traffic under a vm Message-ID: <B8F2D3FA-4359-494A-9A1B-2F046A0DA606@jnielsen.net> In-Reply-To: <5219ECBD.4040209@gmail.com> References: <5219ECBD.4040209@gmail.com>
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On Aug 25, 2013, at 5:38 AM, carlopmart <carlopmart@gmail.com> wrote: > I need to monitor/sniff network traffic for three subnets (1 GiB nets) = and I need to do this using a virtual guest under an ESXi 5 host (yes, = it is a "handicap"). Not sure about your questions below, but doesn't ESXi 5 support port = mirroring in the virtual switch? That seems like a better place to do = most of the heavy lifting. You could still attach your FreeBSD instance = to the monitor port(s) for analysis. That would hopefully help at least = with a) by reducing the number of virtual NICs needed. > I would like to use FreeBSD 8.4 + netmap, but I see some problems: >=20 > a) How can I avoid sharing interrupts for nics interfaces?? This vm = needs to use 6 nic interfaces. >=20 > b) Which is best: em or ixgb emulated drivers?? >=20 > c) Is it a good idea to enable polling in these nics??
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