ASA5505 & QoS

Posted on 2007-07-29
Last Modified: 2013-11-16

How do I setup Quality of Service on my ASA5505 - basically I want to give SIP traffic priority.


Question by:servicetechxp
    LVL 79

    Expert Comment

    Here's basic QoS configurations. Mileage may vary since the QoS is only really designed to police traffic through a VPN tunel.
    LVL 79

    Accepted Solution

    LVL 32

    Assisted Solution

    The real question is how does the remainder of your infrastructure treat QOS?

    Are you already QOS enabled with your SIP capable devices? and will you be marking DSCP values on ingress into your network? Your ASA is just one device you really need an overall network QOS policy, how do all your devices fit into that plan?

    You also need to deal with potentially marking external traffic that comes into your network, how will that be accomplished? How is traffic treated from a QOS perspective after it leaves your local network?

    This can be complex, depends on what you are trying to do.



    Assisted Solution

    Please be careful when configuring QoS on the 5505 platform. I have had issues, including my cisco Tac engineer, producing results with a correct configuration. Even in the 8.0 configuration guide, priority can't be bound to VLAN interfaces, which is only available on the 5505. Once you have your config, test the implementation with the global_policy vs interface policy-maps.

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Threat Intelligence Starter Resources

    Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

    We sought a budget ($5,000) firewall solution that would provide all the performance we needed with no single point of failure.  Hosting a SAAS web application in our datacenter, it was critical that we find a way to keep connectivity up and inbound…
    To setup a SonicWALL for policy based routing to be used with the Websense Content Gateway there are several steps that need to be completed. Below is a rough guide for accomplishing this. One thing of note is this guide is intended to assist in the…
    Sending a Secure fax is easy with eFax Corporate ( First, Just open a new email message.  In the To field, type your recipient's fax number You can even send a secure international fax — just include t…
    Internet Business Fax to Email Made Easy - With eFax Corporate (, you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

    737 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    18 Experts available now in Live!

    Get 1:1 Help Now