[ovs-discuss] High Priority Traffic Path (dscp) for DPDK-OvS

[Darrell Ball]

That’s right; that is what I meant by “this is yet even further away from your needs”

On 3/20/17, 11:50 PM, "Ali Volkan Atli" <Volkan.Atli at argela.com.tr> wrote:

    
    I know ingress/egress policier but they cannot give me traffic prioritization, right? 
    
    - Volkan
    ________________________________________
    From: Darrell Ball [dball at vmware.com]
    Sent: Tuesday, March 21, 2017 9:43 AM
    To: Ali Volkan Atli; discuss at openvswitch.org
    Subject: Re: [ovs-discuss] High Priority Traffic Path (dscp) for DPDK-OvS
    
    For completeness
    There is also ingress side policing for DPDK support, but this is yet even further away from your needs
    
    On 3/20/17, 11:08 PM, "ovs-discuss-bounces at openvswitch.org on behalf of Darrell Ball" <ovs-discuss-bounces at openvswitch.org on behalf of dball at vmware.com> wrote:
    
        Afaik
        OVS-DPDK only supports egress-policing qos
        https://urldefense.proofpoint.com/v2/url?u=http-3A__openvswitch.org_support_dist-2Ddocs_ovs-2Dvswitchd.conf.db.5.pdf&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=RIWw06JUXu6nQ6rBtMjodUMOfYzlTQWCpl3cvhBcMqQ&s=dEB0J4ZNbb6D3fyTCQtQSOL4ESw61sttj73HOUu81OI&e=
        see egress--policer
    
        On 3/20/17, 10:30 PM, "ovs-discuss-bounces at openvswitch.org on behalf of Ali Volkan Atli" <ovs-discuss-bounces at openvswitch.org on behalf of Volkan.Atli at argela.com.tr> wrote:
    
    
            Hi all
    
            I need to specify a number of classes of service according to DSCP bits. Each class of service should be associated with a priority. For example: Packet A is sent with a DSCP value of 0 and packet B is sent with a value of 46; 0 has a lower priority than 46. Packet A arrives before packet B. If DPDK-OvS has been configured as such, Packet B will be transmitted before Packet A.
    
            I know that hardware switches have been designed to ensure certain classes of traffic can be scheduled ahead of other classes, also kernel mode OvS has the similar behavior coming from Linux kernel (tc, qdisk etc..). However, does DPDK-OvS have the same behavior? In master branch, I could not find any kind of scheduler to achieve this behavior.
    
            Thanks in advance..
    
            - Volkan
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