Date: Sat, 9 Aug 2008 20:12:42 +0000 (UTC) From: naddy@mips.inka.de (Christian Weisgerber) To: freebsd-net@freebsd.org Subject: Rx/tx hardware checksumming statistics? Message-ID: <g7ktnq$glp$1@lorvorc.mips.inka.de>
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OpenBSD keeps count of the packets that have undergone IPv4 header/
TCP/UDP checksumming in hardware. These statics are available with
netstat -s, e.g.:
ip:
...
492152 input datagrams checksum-processed by hardware
911338 output datagrams checksum-processed by hardware
...
This comes in quite handy to check whether checksum offloading
actually works and which protocols are successfully processed this
way.
On FreeBSD, netstat -s does not provide this information. Are these
statistics available in some other way? How would I check whether
packets have actually been checksummed in hardware?
--
Christian "naddy" Weisgerber naddy@mips.inka.de
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