65 lines
2.3 KiB
HTML
65 lines
2.3 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
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<!--Converted with LaTeX2HTML 96.1-c (Feb 29, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds -->
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<HTML>
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<HEAD>
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<TITLE>Displaying Interface Statistics</TITLE>
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</HEAD>
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<BODY LANG="EN">
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<A HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <BR>
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<B> Next:</B> <A HREF="node77.html">Displaying Connections</A>
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<B>Up:</B> <A HREF="node74.html">Checking with netstat</A>
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<B> Previous:</B> <A HREF="node75.html">Displaying the Routing Table</A>
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<BR> <P>
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<H2><A NAME="SECTION007920000">Displaying Interface Statistics</A></H2>
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When invoked with the -i flag, netstat will display
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statistics for the network interfaces currently configured. If, in
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addition, the -a option is given, it will print <em>all</em>
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interfaces present in the kernel, not only those that have been
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configured currently. On vstaout, the output from netstat
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will look like this:
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<pre>
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$ netstat -i
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Kernel Interface table
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Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-
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lo 0 0 3185 0 0 0 3185 0 0
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eth0 1500 0 972633 17 20 120 628711 217 0
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</pre>
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The MTU and Met fields show the current MTU and metric value for that
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interface. The RX and TX columns show how many packets have been
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received or transmitted error free (RX-OK/TX-OK), damaged
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(RX-ERR/TX-ERR), how many were dropped (RX-DRP/TX-DRP), and how many
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were lost because of an overrun (RX-OVR/TX-OVR).
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<P>
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The last column shows the flags that have been set for this interface.
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These are one-character versions of the long flag names the are printed
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when you display the interface configuration with ifconfig.
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<dl>
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<dt><b>B</b><dd> A broadcast address has been set.
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<dt><b>L</b><dd> This interface is a loopback device
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<dt><b>M</b><dd> All packets are received (promiscuous mode).
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<dt><b>N</b><dd> Trailers are avoided.
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<dt><b>O</b><dd> ARP is turned off for this interface.
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<dt><b>P</b><dd> This is a point-to-point connection.
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<dt><b>R</b> Interface is running.
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<dt><b>U</b> Interface is up.
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</dl>
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<hr>
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<P><ADDRESS>
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<I>Andrew Anderson <BR>
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Thu Mar 7 23:22:06 EST 1996</I>
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</ADDRESS>
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</BODY>
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</HTML>
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