[Urgent] Monitor Bandwidth per port HP switch



We need to monitor the percentage of bandwidth each of our Internet lines is using. We have in total 5 Internet Lines.

We are now using weathermap to show graphically the amount of bandwidth each line is using. (upload/download speed)

The five internet lines are connected to a manageable Hp switch. We have configured weathermap using the Oid of each port to show the bandwidth.

Ex of the OID
One the intenet line is connected to port 15 on the Switch

Traffic Out
snmpwalk -v 2c -c public
IF-MIB::ifOutOctets.15 = Counter32: 2472302535

Traffic In
snmpwalk -v 2c -c public
IF-MIB::ifInOctets.15 = Counter32: 2494178727

Since with weathermap we dont get mail alerts, i would like to know in case i can use nagios to monitor the bandwidth.(upload/download)
we already have nagios installed. Please specify the plugins that i need to use and how i can implement it.

Thanks in advance.



Can someone please help ?