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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Network Interface Statistics</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="IPTraf-ng User's Manual" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Additional Information" HREF="x938.html"><LINK REL="NEXT" TITLE="Detailed Interface Statistics" HREF="x980.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >IPTraf-ng User's Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x938.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x980.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="NETSTATS" ></A >Chapter 4. Network Interface Statistics</H1 ><P >There are two network interface statistics facilities: the general interface statistics, which displays a statistical summary of all attached interfaces, and the detailed interface statistics, which shows more statistical and load information about a single selected interface.</P ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="GENSTATS" >4.1. General Interface Statistics</A ></H1 ><P > The second menu option displays a list of attached network interfaces, and some general packet counts. Specifically, it displays counts of IP, non-IP, and bad IP packets (packets with IP checksum errors). It also includes an activity indicator, which shows the number of kilobits and packets the interface sees per second. All figures are for incoming and outgoing packets. (Again, considering promiscuous mode for LAN interfaces, which simply causes the machine to intercept all packets). This is useful for general monitoring of all attached interfaces. If byte counts and additional information are needed for a specific interface, the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Detailed interface statistics</I ></SPAN > option is also available.</P ><P > The activity indicators can be toggled between kbits/s and kbytes/s with the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Activity mode</I ></SPAN > configuration option.</P ><P > The general statistics window will dynamically add new entries as packets from newly-created interfaces (e.g. new PPP interfaces) are intercepted. Long lists can be scrolled with the Up, Down, PgUp, and PgDn keys.</P ><P >This monitor is affected by IPTraf-ng's <A HREF="c1147.html" >filters</A > as described in Chapter 7.</P ><P > Copies of the statistics are written to the log file <TT CLASS="FILENAME" >iface_stats_general.log</TT > at regular intervals if logging is enabled. See the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Logging</I ></SPAN > option int the <A HREF="c1793.html" >Configuration</A > chapter.</P ><P > This facility can be started directly from the command line with the <B CLASS="COMMAND" >-g</B > option to the <B CLASS="COMMAND" >iptraf-ng</B > command. When started from the command line, the log filename and log interval can be specified with the <SAMP CLASS="COMPUTEROUTPUT" >-L</SAMP > and <SAMP CLASS="COMPUTEROUTPUT" >-I</SAMP > parameters respectively. See the <A HREF="x171.html" >Command-line Parameters</A > section above for more information.</P ><DIV CLASS="FIGURE" ><A NAME="AEN976" ></A ><P ><B >Figure 4-1. The general interface statistics screen</B ></P ><P ><IMG SRC="iptraf-gstat1"></P ></DIV ><P > You can press X or Q to return to the main menu. </P ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x938.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="x980.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Additional Information</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Detailed Interface Statistics</TD ></TR ></TABLE ></DIV ></BODY ></HTML >

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