[ovs-discuss] precedence of QoS

[Ben Pfaff]

I think that you could get that effect with the HTB qdisc if you set a
small min-rate for each queue, a high max-rate, and then use the
priority setting to control precedence.

You can use other qdiscs that support precedence, if you like, too,
it's just that OVS doesn't have built-in support for configuring them.

On Mon, Oct 31, 2011 at 12:20:45PM -0500, Shan Hu wrote:
> In the description,it is like this:
> 
> Strict Precedence:
> 
>     * A flow is assigned a precedence level. (Default: four levels?). A queue at a given precedence level is only served if all the queues with higher precedence are empty. 
> 
> Shan
> 
> ----- Original Message -----
> From: "Ben Pfaff" <blp at nicira.com>
> To: "Shan Hu" <shan.hu at utdallas.edu>
> Cc: discuss at openvswitch.org
> Sent: Monday, October 31, 2011 12:14:02 PM
> Subject: Re: [ovs-discuss] precedence of QoS
> 
> On Mon, Oct 31, 2011 at 12:11:40PM -0500, Shan Hu wrote:
> > Is there a way to implement the Strict Precedence of QoS primitives
> > in current verison kernel ovs?
> 
> Will you define "Strict Precedence of QoS", please?