Messages in this thread | | | Date | Sun, 27 Jan 2013 21:21:32 -0800 | Subject | Re: Doubts about listen backlog and tcp_max_syn_backlog | From | Vijay Subramanian <> |
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> + { "ListenDrops", N_("%u SYNs to LISTEN sockets dropped"), opt_number }, > > (see the file debian/patches/CVS-20081003-statistics.c_sync.patch > in the net-tools src) > > i.e., the netstat pkg is printing the value of the TCPEXT MIB counter > that's counting TCPExtListenDrops. > > Theoretically, that number should be the same as that printed by nstat, > as they are getting it from the same kernel stats counter. I have not > looked at nstat code (I actually almost always dump the counters from > /proc/net/{netstat + snmp} via a simple prettyprint script (will send > you that offline). >
nstat pretty much does what you describe which is to parse the /proc/net files(s) and print the contents. This is one advantage of nstat over netstat. When you add a new MIB, you do not need to update nstat.
> If the nstat and netstat counters don't match, something is fishy. > That nstat output is broken. >
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