Date: Sat, 16 Jul 2005 17:21:31 -0700 From: Justin Robertson <justin@sk1llz.net> To: freebsd-questions@freebsd.org Subject: little lost with my netstat -m output Message-ID: <42D9A48B.60802@sk1llz.net>
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I have a couple of issues that I'm somewhat concerned about based on some netstat output results. I have a few boxes running 4.11-STABLE that provide this; FreeBSD 4.11-STABLE #0: Wed May 4 09:49:52 PDT 2005 (i386) # netstat -m netstat: sysctl: retrieving mbstat: Cannot allocate memory And then two boxes running 5.4-STABLE that provide this; FreeBSD 5.4-STABLE #0: Wed May 18 11:51:30 PDT 2005 (amd64) # netstat -m 1358787 mbufs in use 18446744073709476645/32768 mbuf clusters in use (current/max) 0/0/0 sfbufs in use (current/peak/max) 189754 KBytes allocated to network 0 requests for sfbufs denied 0 requests for sfbufs delayed 4735 requests for I/O initiated by sendfile 300 calls to protocol drain routines FreeBSD 5.4-STABLE #0: Wed May 18 11:51:18 PDT 2005 (amd64) # netstat -m 740238 mbufs in use 131702/32768 mbuf clusters in use (current/max) 0/0/0 sfbufs in use (current/peak/max) 448463 KBytes allocated to network 0 requests for sfbufs denied 0 requests for sfbufs delayed 10981 requests for I/O initiated by sendfile 492 calls to protocol drain routines Now, the 4.11 boxes failing to report and rather giving me a memory error are somewhat troubling, but what's more troubling is the 5.4 boxes showing current usage beyond the max limitations. Not to mention consuming between 190 and 450mb for net traffic. The output just seems so out of touch... While all the machines are frequented with attacks, none are in progress at the moment, and the machines rarely suffer anything more than lag due to network saturation... If this spike was the result of an attack, why were they never released? I'm generally confused by what I'm seeing here, what gives?
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