1 Reply Latest reply on Dec 3, 2008 1:57 PM by Andy McBride

    QoS Monitoring Explanation

      I'm seeing some strange behavior from NTA ... for some of our hosts I notice their traffic appears in more than one queue.  Some of our traffic appears in our higher class traffic queue (AF21, using WFQ) as well as the scavenger queue (CS0, again using WFQ) -- is there any reason why it appears in more than one QoS queue?  At first I thought it may be 'return' traffic coming back to that host as being unmarked, but this doesn't seem to be the case either as i've verified that traffic is being marked when received on both sides.

      I'm not a QoS or Netflow guru by any means, so i'm hoping someone has a reasonable explanation as to why i'm seeing this.  Also, I am trying to review our DSCP classes so having AF21 traffic showing up in both queues makes it hard for me to baseline anything.  Knowing why i'm seeing this might give me an idea of how I should do this.

        • Re: QoS Monitoring Explanation
          Andy McBride

          Hi bishop7,

           

           ...for some of our hosts I notice their traffic appears in more than one queue.  Some of our traffic appears in our higher class traffic queue (AF21, using WFQ) as well as the scavenger queue (CS0, again using WFQ) -- is there any reason why it appears in more than one QoS queue?  ...



          Wouldn't a host using different apps show up in different queues as a function of the QoS mapping? 

           

          Andy