5 Replies Latest reply on Mar 21, 2012 6:44 AM by jhall

    Traffic filtering on 3120

    jhall New Member

      I've got an end user with a 3120 that would like to be able to automatically rate limit SMTP traffic if it goes over a certain level. Is there any way to do this with this router? If not would it be possible to limit traffic during certain time periods such as on the weekends or afterhours?

       

      Thanks

       

      Jamie

        • Re: Traffic filtering on 3120
          levi Employee

          Jamie:

           

          Thank you for asking this question.

           

          You can use the feature Enhanced Ethernet Quality of Service (EEQoS) to shape specific traffic.  This process is explained in greater detail in the Configuring Enhanced Ethernet Quality of Service in AOS document, but here is an overview:

           

          1. Create QoS Map
          2. Apply Match Criteria
          3. Configure Traffic Shaping
          4. Configure the Interface
          5. Assign the QoS Map to the Interface

           

          Here is an example configuration:

           

          qos map SHAPE-SMTP 10

            match list SMTP

            shape average 1000000

          !

          ip access-list extended SMTP

            permit tcp any  any eq smtp

          !

          interface eth 0/1

            ip address x.x.x.x 255.255.255.0

            qos-policy out SHAPE-SMTP

            no shutdown

           

          I hope that makes sense, but please do not hesitate to reply to this post if you have any additional questions on this topic.

           

          Levi