CentOS - Nov 2012 - Monitoring bandwidth, latency, packet drop.

Hi all.

I am currently thinking about monitoring a network link (bandwidth,
latency, packet drop). I have a centos server which is connected to
providers network through a switch. How to test the link? Should I:
- use ICMP to ping gateway and collect staistics of time/packet loss/etc.
- use software like here:
http://www.cyberciti.biz/faq/linux-unix-windows-monitor-outgoing-bandwidth-latency/
 (client/server)
?
Is there an option to monitor bandwidth, latency, packet drop without
installing additional software on gateway or external host?

Best regards,
Rafa?.

----- "Rafa? Radecki" <radecki.rafal at gmail.com> escreveu:
> De: "Rafa? Radecki" <radecki.rafal at gmail.com>
> Para: "CentOS mailing list" <centos at centos.org>
> Enviadas: Sexta-feira, 9 de Novembro de 2012 5:59:46 (GMT-0300)
Auto-Detected
> Assunto: [CentOS] Monitoring bandwidth, latency, packet drop.
>
> Hi all.
> 
> I am currently thinking about monitoring a network link (bandwidth,
> latency, packet drop). I have a centos server which is connected to
> providers network through a switch. How to test the link? Should I:
> - use ICMP to ping gateway and collect staistics of time/packet
> loss/etc.
> - use software like here:
>
http://www.cyberciti.biz/faq/linux-unix-windows-monitor-outgoing-bandwidth-latency/
>  (client/server)
> ?
> Is there an option to monitor bandwidth, latency, packet drop without
> installing additional software on gateway or external host?
> 
Hi Rafal, 

   I use this https://collectd.org/wiki/index.php/Plugin:Ping
collectd plugin to monitor latency and packet drop. The bandwidth
can be monitored with another plugin, if it's the server bandwidth,
or using snmp on the router to monitor the site bandwitdth.



      Antonio.

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