WebSVN - weathermap - Blame - Rev 71

<div class="license"><p>PHP Weathermap is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.</p>

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<p>PHP Weathermap is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.</p>

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<p>You should have received a copy of the GNU General Public License along with PHP Weathermap; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA</p>

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<p>Parts of this software distribution are by other authors. Please see the README file for attribution and license details.</p>

</div>

<div id="enclose">

<div class="card-right" style="width: 290px;">

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<h2 class="card-title">PHP Weathermap</h2>

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<p class="card-photo"><img src="../images/weathermap-mini.png" /></p>

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      <p class="card-desc">Sample output from php-weathermap, using data collected by Cacti and MRTG.<br /><a href="../images/weathermap-example.png">Larger version</a></p>

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</div>

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<h2><a name="introduction" id="introduction">Introduction</a></h2><p>PHP Weathermap is one of <a href=

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"#alternatives">many</a> implementations of the same basic

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idea - take data from your network devices and use it to

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provide a single-page overview of the current state of

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network, like the one to the right. It complements a tool

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like <a href="http://www.mrtg.org">MRTG</a>, <a href=

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"http://cricket.sourceforge.net/">Cricket</a> or <a href=

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"http://www.cacti.net/">Cacti</a>, that provide in-depth

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graphing, and historical information, and can use data from

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those systems to produce it's maps. In fact, it

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<i>requires</i> some other data-collection source, as it does

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no device-polling on it's own.</p>

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<p>This particular version is written in PHP, and it can read statistics data from

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MRTG-produced HTML files, plain tab-seperated text files and from RRD files, such as those

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produced by newer MRTG setups, Cacti (my favourite) or

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another tool. It can also generate HTML 'holder' files for

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the map images, which can include 'DHTML' overlays of

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historical data and links into your other

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      monitoring/statistics system. It also has a interactive map editor, so you can largely avoid the text configuration files, if you prefer.</p>

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<p>To get a better idea of what is possible, see the <a href="#example">example map</a> that comes with this manual.</p>

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<h3>Requirements</h3>

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<p>Based on lessons learned with the perl version, this one

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has a very restricted set of dependencies - you'll need a

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recentish PHP (>4.3.0 I think) including the CLI version

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      and the 'gd' extension with PNG, TrueColour and FreeType support. You will need command-line (<i>aka shell/ssh/telnet</i>) access to

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the server which will host the maps.

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<p>To read RRD files, you'll need the rrdtool command-line program. </p>

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<p>Apart from the

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gd module, these requirements are the same as for Cacti,

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which is the most-tested partner stats system.</p>

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    <p>To use the Cacti plugin, you will need a recent version of Cacti, and the matching Cacti Plugin Architecture, from <a href="http://cactiusers.org/">Jimmy Conner's Cactiusers.org</a>.</p>

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<h2><a name="support">Support</a></h2>

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<p>There are two mailing lists for php-weathermap:<dl>

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<dt>php-weathermap@thingy.com</dt>

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                <dd>General discussion of weathermap-related issues, bug reports and development. Fairly low traffic currently. Typically contains discussion of test or beta versions too, when they are circulating.</dd>

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<dt>php-weathermap-announce@thingy.com</dt>

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<dd>Very low volume list for new version announcements and other similarly rare events!</dd>

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</dl>

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                More information about how to subscribe to the mailing lists is <a href="http://www.network-weathermap.com/support/mailinglists">at the website</a>.</p>

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                <p>Also, if you have an RSS reader, you can subscribe to the <a href="http://www.network-weathermap.com/appcast.rss">'appcast' feed for php-weathermap</a> which contains roughly the same content as the -announce mailing list.</p>

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<h2><a name="installation" id="installation">Installation Guide</a></h2>

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<p>How to install Weathermap depends on how you intend to use it:

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<ul>

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<li><a href="install-cacti-editor.html">As a Cacti Plugin, with the web-based editor</a></li>

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<li><a href="install-cacti.html">As a Cacti Plugin</a></li>

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<li><a href="install-cli-editor.html">As a standalone command-line tool, with the web-based editor</a></li>

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<li><a href="install-cli.html">As a standalone command-line tool</a></li>

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</ul>

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</p>

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<h2><a name="running" id="running">Running Weathermap</a></h2>

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<p>There are two ways to run Weathermap.</p><p>If you are using the Cacti plugin, then it will be run

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for you as part of the Cacti poller cycle. You don't need to do anything special apart from add

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your map configuration files, as explained in the <a href="cacti-plugin.html">Cacti plugin</a> notes.</p>

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<p>If you are using weathermap as a standalone tool, you do it using the command line version. See the

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          <a href="cli-reference.html">CLI Reference</a> for all possible options, but a good starting point is something like:</p>

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<div class="shell">

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<pre>php ./weathermap --config myconfigfile.conf --output mymap.png --htmloutput mymap.html</pre>

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</div>

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        <p>You can skip the htmloutput and output parts if you have HTMLOUTPUTFILE and IMAGEOUTPUTFILE lines in your configuration file.</p>

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        <p>Usually, people want to run weathermap regularly (it's not a requirement though!). To do that, you need to create a 'cron job' or 'Task Scheduler Task' to

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        run a command-line like the one above on a regular basis. You probably already have a similar task setup to collect the data

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that weathermap is reading. This is the same kind of thing.</p>

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<h2><a name="basics" id="basics">Basics</a></h2>

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<p>The weathermap is defined by a plain-text file

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which by default is called weathermap.conf (you can have many

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configurations, and choose between them with command-line switches).

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By default, weathermap will read that file, and produce a

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single PNG file called weathermap.png.</p>

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<p>The configuration file has three sections: Node definitions, Link

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definitions and Global settings. There is an <a href=

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"#example">example of a complete file</a> at the bottom of

this page.</p>

<h3>Nodes</h3>

<div class="shell">

<pre>

NODE nycore1

LABEL NYC

POSITION 30 30

</pre><b>A simple NODE</b>

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</div><p>Nodes are the points on your network that are joined

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together. Depending on the detail in the map, they might be

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cities or individual routers. In a basic map, a node has 3

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pieces of information - an internal name which must be unique

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to this node, it's position from the top-left corner of the

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map, in pixels, and optionally a label, which will appear

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within the box marking the position of the node. Nodes

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without a label don't appear on the map at all, but can still

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be used as an endpoint for a link.</p>

<h3>Links</h3>

<div class="shell">

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<pre>

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LINK backbone1

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NODES nycore1 paix1

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BANDWIDTH 3M

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TARGET ../my-mrtg-data/backbone1.html

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</pre><b>A simple LINK</b>

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</div><p>Links are the network routes between the Nodes.

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Typically they are actual network links, but they can be

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anything that you can get numbers for that make sense on map.</p>

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<p>An absolute minimal link has 3 pieces of information too.

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They are the unique internal name for this link, and unique

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node names for the two endpoints. To show current usage on

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the map, you'll need to give two more pieces: the maximum

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bandwidth on the link, and a way to get the current

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throughput. The BANDWIDTH is measured in bits/sec, and can

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include the usual K,M,G and T suffixes for large values. The

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data-source is given in the TARGET line, and can be one of

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<ul>

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<li>MRTG-generated HTML file (which contains a special HTML

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comment at the bottom with the current values)</li>

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<li>Cacti-generated RRD file</li>

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<li>Some other RRD file, provided you know how it is

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structured internally.</li>

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</ul> One important note: the order of the nodes in the NODES

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line is significant. The first node is considered to be the

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'local' one when thinking about the data source in the

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TARGET. 'out' will be 'out' relative to the first node. If

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you find the map shows all your data flowing in the wrong

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direction, try swapping the order of the nodes here.</p>

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<h3>Global Settings</h3><p>These settings usually live at the

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top of the text file, and specify basic information about the

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map. The minimum settings are:</p>

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<div class="shell">

<pre>

WIDTH 800

HEIGHT 600

</pre>

</div><p>This is specifies the size of the map in pixels. If you

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want something a bit fancier than a plain white background,

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you can make up a background image to use in PNG format. In

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that case, the map will be the size of the background image:</p>

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<div class="shell">

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<tt>BACKGROUND western-europe.png</tt>

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</div><p>There are also settings to set which fonts and colours are used for various

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elements of the map, where to position the colour-legend (if at all), what files

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          to output, and more advanced layout techniques. The full list is in the <a href="config-reference.html">Config Reference</a>.</p>

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<h2><a name="example" id="example">A Sample

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Config</a></h2>Here's a sample configuration, and <a href=

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"../example/example.html">here's what it produces (modified to work a little better)</a>. The data

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isn't live in the output, but it gives you an idea of what

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can be done. The initial background image is <a href=

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      "../example/background.png">here</a>. The configuration file is also in the docs directory of the distribution, should you want it.

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<div class="shell">

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<pre>

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# some initial comments...

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#

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# This sample configuration file demonstrates most of the basic features of

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# PHP Weathermap, along with some of the cosmetic and layout changes possible

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#

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#

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BACKGROUND background.png

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HTMLOUTPUTFILE example.html

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IMAGEOUTPUTFILE example.png

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TITLE Network Overview

HTMLSTYLE overlib

KEYPOS 10 400

# define some new TrueType fonts - built-in ones go from 1 to 5, so start high

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FONTDEFINE 100 VeraIt 8

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FONTDEFINE 101 Vera 12

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FONTDEFINE 102 Vera 9

KEYFONT 102

LINK DEFAULT

BANDWIDTH 100M

BWLABEL bits

BWFONT 100

OVERLIBWIDTH 395

OVERLIBHEIGHT 153

WIDTH 4

NODE DEFAULT

LABELFONT 101

NODE transit

POSITION 400 180

LABEL TRANSIT

# a little splash of background colour for these nodes

NODE isp1

POSITION 250 100

LABEL ISP1

INFOURL http://www.isp1.com/support/lookingglass.html

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LABELBGCOLOR 255 224 224

NODE isp2

POSITION 550 100

LABEL ISP2

INFOURL http://www.isp2.net/portal/

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LABELBGCOLOR 224 255 224

NODE core

POSITION 400 300

LABEL core

INFOURL https://core.mynet.net/admin/

NODE customer1

LABEL xy.com

POSITION 150 370

NODE customer2

LABEL ww.co.uk

POSITION 250 450

NODE infra

LABEL INFRASTRUCTURE

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POSITION 450 450

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# this node has an icon, and so we push the label to the South edge of it, so it

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# can still be read

NODE sync

LABEL Sync

ICON my_router.png

LABELOFFSET S

LABELFONT 2

POSITION 550 370

# the icon is taken from a Nagios icon pack:

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#   http://www.nagiosexchange.org/Image_Packs.75.0.html?&amp;tx_netnagext_pi1[p_view]=110&amp;tx_netnagext_pi1[page]=10%3A10

NODE site1

LABEL site1

POSITION 700 220

NODE site2

LABEL site2

POSITION 750 420

LINK sync-core

NODES sync core

TARGET data/sync_traffic_in_259.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=256&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=256

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#

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# Site1 has two E1s, so we use NODE-offsets to allow them to run parallel

#

LINK sync-site1a

NODES sync:N site1:W

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WIDTH 3

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TARGET data/sync_traffic_in_257.rrd

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BANDWIDTH 2M

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=254&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=126

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LINK sync-site1b

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NODES sync:E site1:SE

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WIDTH 3

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=255&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=

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TARGET data/sync_traffic_in_258.rrd

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BANDWIDTH 2M

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=56

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#

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# site2 also has two links, but this time we use the VIA to curve the links

#

LINK sync-site2a

NODES sync site2

WIDTH 3

VIA 650 380

TARGET data/sync_traffic_in_251.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=248&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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BANDWIDTH 1M

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=252

LINK sync-site2b

NODES sync site2

WIDTH 3

VIA 650 420

TARGET data/sync_traffic_in_252.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=228&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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BANDWIDTH 1M

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=561

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#

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# ISP 1 has a several links, again, but they prefer to see one arrow, and the aggregate bandwidth

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# so we use multiple TARGETs on one line, here, to sum the data

LINK transit-isp1

NODES transit isp1

TARGET data/trans1_traffic_in_352.rrd data/trans1_traffic_in_378.rrd data/trans1_traffic_in_420.rrd

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BANDWIDTH 10M

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=355&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=633

LINK transit-isp2

NODES transit isp2

TARGET data/trans1_traffic_in_438.rrd

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BANDWIDTH 34M

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=433&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=265

LINK core-transit

NODES transit core

TARGET data/trans1_traffic_in_350.rrd

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ARROWSTYLE compact

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WIDTH 4

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=347&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=122

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LINK cust1-core

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NODES customer1 core

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TARGET data/extreme_traffic_in_299.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=296&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=237

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LINK cust2-core

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NODES customer2 core

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TARGET data/extreme_traffic_in_286.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=283&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=222

LINK infra-core

NODES infra core

TARGET data/extreme_traffic_in_294.rrd

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        OVERLIBGRAPH http://support.mynet.net/cacti/graph_image.php?local_graph_id=291&amp;rra_id=0&amp;graph_nolegend=true&amp;graph_height=100&amp;graph_width=300

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INFOURL http://support.mynet.net/cacti/graph.php?rra_id=all&local_graph_id=228

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</pre><b>A Sample Configuration File</b>

</div>

<h3><a name="alternatives" id="alternatives">Other

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Weathermaps</a></h3><p>Obviously, you can't please everyone, so

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here's a list of other weathermap or network visualisation

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implementations that I know of. Some are open source, some

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aren't. All of them have some subtle or interesting wrinkle

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that the others don't. <a href="mailto:howie@thingy.com">Let

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me know if you know of any others</a>.

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<dl>

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        <dt><a href="http://netmon.grnet.gr/weathermap/" class="ext">GRNET perl version</a> by Panagiotis Christias.</dt>

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<dd>Support only for MRTG, or anything else that can

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produce similar HTML files.</dd>

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<dt><a href=

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"http://wotsit.thingy.com/haj/cacti-weathermap.html">My own

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perl weathermap</a></dt>

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<dd>A forked/modified version of the GRNET one above, adds

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imagemaps, DHTML, RRD-reading and a number of smaller

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tweaks. No longer updated.</dd>

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<dt><a class="ext" href=

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"http://weathermap4rrd.tropicalex.net/">Weathermap4RRD</a></dt>

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<dd>Another fork of the GRNET perl map. Also with (only?)

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RRD support, and various graphical enhancements.

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<i>Also</i> now with a PHP version!</dd>

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<dt><a href=

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"http://loadrunner.uits.iu.edu/weathermaps/abilene/" class=

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"ext">Indiana University Abilene Weathermap</a></dt>

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<dd>Another perl (i think) script, but with a rather

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different map design. Can show error rates on links,

too.</dd>

<dt><a href=

"http://noc.asti.dost.gov.ph/docus/tools/how-to/weathermap.php"

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class="ext">PREGINET Network Weathermap</a></dt>

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<dd>Another perl open source map. Works by reading MRTG

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logs, as far as I can tell.</dd>

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<dt><a href="http://www.it.teithe.gr/~v13/">V13 netmap</a>

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(click 'netmap' in the left hand panel - I love

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frames)</dt>

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<dd>Similar output to this program, but does all it's own

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SNMP data collection.</dd>

</dl>

</p>

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