3 Replies Latest reply on Mar 21, 2016 8:17 AM by ecklerwr1

    How does NPM really calculate and handle packet loss?  And how is/would it be effected by QOS/TOS?


      One of our better network engineers here asked me some about this.  He wanted to know if packet loss was all based on icmp from NPM or does it use snmp to get the data from actual router?  The reason I ask is this.  We all know that icmp and snmp are by default CS0 type of server in QOS right... so if a circuit got very busy and started dropping icmp and or snmp traffic as it's priority was lower I think?  Would NPM then start showing this as packet loss?  I hope you can see what I'm getting at here.  We are doing more advanced QOS now  and I'm wondering if there should be a higher priority bucket created for management and control plane traffic???