[j-nsp] Best way to do QOS bleach

Mark Tinka mark.tinka at seacom.mu
Mon Oct 17 12:01:12 EDT 2016

On 17/Oct/16 17:03, John Luthcinson wrote:

> Hi
> What's the best way to "bleach" the possible QoS (802.1P or DSCP) bits in
> CE facing ingress interfaces? The default classifier (ipprec-compatibility)
> allows customers to transmit packets to NC queue which is very bad.
> The optimal way would be something like this:
> - classify everything in every IFL as BE
> - manually specify the exceptions
> set class-of-service interfaces x/y/z.a forwarding-class best-effort (for
> every IFL/IFD (one can use *))
> OR
> specify FW filter with "then forwarding-class best-effort" in every IFL (or
> w/ apply-groups)
> Is there a better way?

If you have Trio line cards, use Policy Map:


It's the easiest way to remark the traffic on ingress in Junos.


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