monitoring tools

Unanswered Question
May 29th, 2007

Dear Sir,

We have a lot of WAN links connect to our sites. (80 PRI, 15 IPLC, 30 local loops, 5 metro ethernet, 30 VPN connection and 3 tunnel.

Any freeware can monitor the WAN links, ... VPN and tunnel?

If there is no any freeware in the market for WAN link monitoring, what is the paid application can do it? Thanks

Best regards

CM Leung

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mohammedmahmoud Tue, 05/29/2007 - 01:08

Hi,

If you are talking about link utilization monitoring you can go for MRTG (It uses SNMP).

http://oss.oetiker.ch/mrtg/doc/mrtg.en.html

http://www.mrtg.com/

NOTE: MRTG is not limited to monitoring traffic, though. It is possible to monitor any SNMP variable you choose. People are using MRTG, to monitor things such as System Load, Login Sessions, Modem availability and more.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.

leungcm Tue, 05/29/2007 - 02:12

Dear Sir,

Thanks for your input, we would like to monitor the links up and down. If we use the MRTG, we may take 5 to 10 min to know the cct is down. So, we look for a tools to monitor the cct up and down. Thanks

Best regards

CM Leung

guruprasadr Tue, 05/29/2007 - 01:32

HI,

As said in previous Reply. MRTG will help you a lot in Monitoring Line Load, Packet Loss, Latency Delays etc.,

MRTG works on SNMP Polling.It works on Unix as well as Windows.It requires Perl, Apache, RRD & MRTG installation & fine tuning of same. You can also use PRTG if you would like to monitor specific ports.

In Industry wide trend, MRTG is the recommended tool to Monitor the WAN Links.

PLS Rate if Helps ! !

Best Regards,

Guru Prasad R

leungcm Tue, 05/29/2007 - 02:13

Dear Sir,

Thanks for your input, we would like to monitor the links up and down. If we use the MRTG, we may take 5 to 10 min to know the cct is down. So, we look for a tools to monitor the cct up and down. Thanks

Best regards

CM Leung

guruprasadr Tue, 05/29/2007 - 02:24

HI, [PLS Rate if Helps]

Using MRTG by default you will have Graph Updated for every 5 Mintues. But, you can fine tune the Configuration to 2/3 minutes.

But Big Sister (in Unix) will be able to Poll the WAN Links / Interfaces every half Seconds / 1 Seconds or even 1 minute of time interval.

Hope this helps you. PLS RATE if Helps

Best Regards,

Guru Prasad R

farkascsgy Tue, 05/29/2007 - 04:04

Hello,

Try to use Nagios, that's a pretty cool monitoring tool - can check services on servers, host reachability, with snmp status of interface... (nagios.org - it's based on linux)

Also cacti is another useful tool, rrd based.

bye

FCS

Please rate me if I helped.

leungcm Tue, 05/29/2007 - 08:05

Dear Sir,

How to config the cacti or nagios to monitor the wan link?

we put nagios / cacti to the data center. if the WAN link of data center is down, does negios/cacti report ALL ccts down? (if there is one wan link to outside our network). how do we know exact cct down?

we know that it is not easy to do it. any idea can solve it? setup two or three nagios /cacti servers? please advice

best regards

CM Leung

farkascsgy Tue, 05/29/2007 - 10:41

Hello,

You can monitor interfaces using SNMP or just use PING. Nagios use host and service dependencies: NagiosServer--Switch1--Router1--Router2-... If you check services on Router2 but Router 1 is down, Nagiso will report that you have problem with R1.

Nagios has so many plugins - check commands or you can write your own.

For further details check nagios.org

Bye

FCS

Please rate me if I helped.

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