I would like to monitor our bandwidth of our links.
We are using SNMP on our firewalls, and we are getting the ifInOctets and ifOutOctets OIDs.
How do I convert these into bandwidth? According to the Cisco website - http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/8141-calculate-bandwidth-snmp.html it statest the following:
Input utilisation = difference betwwen two poll cycles * 8 * 100 / number of seconds in the difference * the interface speed.
I can get the interface speed, the inOctets and outOctets, but how do I do a custom channel that does this calculation?