How can I graph active switch ports? Cisco 6509

[mschwen]

Hey Cacti Pros,

This request is actually pretty simple, but I am not a cacti ninja yet, just know basic scripting.

I have a request from my boss at work, he needs to know how many active ports are on a specific switch over a given period of time. So switch X has X amount of ports Average over the last 2 weeks. It seems like you would pull SNMP on the switch finding all active/inactive ports then count them and graph that count. Can anyone help me out with this? That would be much appreciated.

[druwade]

I too would love this feature, if anyone can shed some light this would be excellent.

[noname]

how many active ports are on a specific switch over a given period of time

For example:
1) Create script which returns number of active ports
2) Use the script as Data Input Method in Cacti

See Walkthrough: My First Data Input Method - Cacti Docs


Below is my sample..

I don't know what OID has number of active ports.
So tried counting interfaces which ifOperStatus (.1.3.6.1.2.1.2.2.1.8) is "up".

% snmpwalk -Ov -v1 -c <community> <host> .1.3.6.1.2.1.2.2.1.8
INTEGER: down(2)
INTEGER: up(1)
INTEGER: up(1)
INTEGER: up(1)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: down(2)
INTEGER: up(1)
INTEGER: up(1)

Script

Code: Select all

#!/bin/sh

/usr/local/bin/snmpwalk -Ov -v1 -c $1 $2 .1.3.6.1.2.1.2.2.1.8 | /usr/bin/grep -c up

Data Input Method


Data Template


Graph Template


Graph

[minmei]

You can also do this - this script only looks at ports which have "Fast" in the the description (100mbps ports) and gives me total ports for the switch. We have 80-ish stacks on campus and it's nice to be able to see how many ports are active versus the total.

Code: Select all

<?php

/* do NOT run this script through a web browser */
if (!isset($_SERVER["argv"][0]) || isset($_SERVER['REQUEST_METHOD'])  || isset($_SERVER['REMOTE_ADDR'])) {
   die("<br><strong>This script is only meant to run at the command line.</strong>");
}

$no_http_headers = true;

if (file_exists(dirname(__FILE__) . "/../include/global.php")) {
        include(dirname(__FILE__) . "/../include/global.php");
}
include(dirname(__FILE__) . "/../include/config.php");
include(dirname(__FILE__) . "/../lib/snmp.php");


$hostname = $_SERVER["argv"][1];
$snmp_community = $_SERVER["argv"][2];
$snmp_version = $_SERVER["argv"][3];


$interfaceDescIndex = ".1.3.6.1.2.1.2.2.1.2";
$interfaceUpIndex = ".1.3.6.1.2.1.2.2.1.8";

$interfaceDescArray = reindex(cacti_snmp_walk($hostname, $snmp_community, $interfaceDescIndex, $snmp_version, "", "", "", "", "", "", 161, 1000));
$interfaceUpArray = reindex(cacti_snmp_walk($hostname, $snmp_community, $interfaceUpIndex, $snmp_version, "", "", "", "", "", "", 161, 1000));

#print_r($interfaceUpArray);

$interfaceCulledUpArray = cull($interfaceDescArray,$interfaceUpArray);

#print_r($interfaceCulledUpArray);

$findUpInterfaces= array_count_values($interfaceCulledUpArray);

#print_r($findUpInterfaces);

$interfacesUp=0;

if (array_key_exists("up(1)", $findUpInterfaces)) {
        $interfacesUp=$findUpInterfaces["up(1)"];
        }

$interfacesTotal = sizeof($interfaceCulledUpArray);

print "totalinterfaces:" . $interfacesTotal . " upinterfaces:" . $interfacesUp;

function reindex($arr) {
        $return_arr = array();

        for ($i=0;($i<sizeof($arr));$i++) {
                $return_arr[$i] = $arr[$i]["value"];
        }

        return $return_arr;
}

function cull($arrDesc,$arrUp) {
        $return_arr = array();
        $fast = "Fast";

        for ($i=0;($i<sizeof($arrDesc));$i++) {
                #print $arrDesc[$i] . strpos($arrDesc[$i],$fast);
                if (strpos($arrDesc[$i],$fast) !== false ) {
                        $return_arr[$i] = $arrUp[$i];
                }
        }

        return $return_arr;
}

?>

[noname]

You can also do this - this script only looks at ports which have "Fast" in the the description (100mbps ports) and gives me total ports for the switch.

Oh, that's good idea! :)
By that method, we can exclude logical ports (VLAN, Port-channel, Null interfaces, etc.) from counting.

[mschwen]

Thanks guys! This is perfect, I have actually successfully created the script. Its weird, when I run the script in the console it returns an number. But when Cacti runs the script it is returning 0 every time. Any Ideas?


[#######@ne2 scripts]$ sh activeports.sh ##### ########
183


10/04/2011 11:45:44 AM - SPINE: Poller[0] Host[68] TH[1] DS[1541] SCRIPT: /var/www/cacti/scripts/activeports.sh , output: 0

[noname]

Try to add the following blue line in crontab for debugging:

*/5 * * * * php /var/www/cacti/poller.php > /dev/null 2>&1
*/5 * * * * /var/www/cacti/scripts/activeports.sh ##### ######## >> /tmp/activeports.log 2>&1

Is there any error in that log?

[mschwen]

Looks to be working...

[root@ne2 tmp]# tail -f activeports.log
232

[mschwen]

Thanks for all the help guys! I love Cacti and will continue to use it in my environment, here at Adobe, for ever, mainly due to the amount of support!

Got it working, just needed to add sh to the beginning of my script command.

[gandalf]

Thanks for all the help guys! I love Cacti and will continue to use it in my environment, here at Adobe, for ever, mainly due to the amount of support!

Hey! We should consider visiting you next year at Adobe on our yearly Cacti Developer Meeting
R.

[wasserbox]

You can also do this - this script only looks at ports which have "Fast" in the the description (100mbps ports) and gives me total ports for the switch.

Thanks for this. Through much trial, error, and RTFM I got it working. I'm not much of a coder - more of a muddler.
I edited it to use "Ether" since we are moving a lot of stuff over to 1 &10G ports.
Also changed it to use "Async" to graph inbound modem usage on some AS5350's - which is something my boss has been bugging me about for years.