Nested QoS policy support on Juniper
Can Juniper shape traffic on a 10 Gig link and then within that shaper setup 3 different shappers
The work-around is to use drop profiles; See example below:
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classifiers {
dscp WAN-CLASSIFIER {
forwarding-class DR {
loss-priority low code-points [ af11 af12 af13 ];
}
forwarding-class VOICE {
loss-priority low code-points ef;
}
forwarding-class VIDEO {
loss-priority low code-points af41;
loss-priority high code-points cs4;
}
forwarding-class D1 {
loss-priority high code-points cs3;
}
forwarding-class D2 {
loss-priority low code-points af21;
loss-priority medium-low code-points af22;
loss-priority high code-points cs2;
}
forwarding-class D3 {
loss-priority low code-points be;
}
forwarding-class D4 {
loss-priority high code-points cs1;
}
forwarding-class NETWORK-CONTROL {
loss-priority low code-points [ cs6 cs7 ];
}
}
}
drop-profiles {
WRED-PROFILE {
fill-level 85 drop-probability 15;
fill-level 90 drop-probability 20;
fill-level 95 drop-probability 35;
fill-level 100 drop-probability 100;
}
}
forwarding-classes {
queue 0 D3;
queue 1 D4;
queue 2 VOICE;
queue 3 NETWORK-CONTROL;
queue 4 D2;
queue 5 VIDEO;
queue 6 D1;
queue 7 DR;
}
scheduler-maps {
QUEUE-OUTPUT {
forwarding-class VOICE scheduler VOICE-SCHED;
forwarding-class VIDEO scheduler VIDEO-SCHED;
forwarding-class D1 scheduler D1-SCHED;
forwarding-class D2 scheduler D2-SCHED;
forwarding-class D3 scheduler D3-SCHED;
forwarding-class D4 scheduler D4-SCHED;
forwarding-class DR scheduler DR-SCHED;
forwarding-class NETWORK-CONTROL scheduler NETWORK-CTL-SCHED;
}
}
schedulers {
/* DR SCHEDULERS */
DR-SCHED {
shaping-rate percent 60;
priority low;
}
/* NORMAL SCHEDULERS */
VOICE-SCHED {
transmit-rate percent 4;
priority high;
}
VIDEO-SCHED {
transmit-rate percent 4;
priority low;
}
D1-SCHED {
transmit-rate percent 4;
priority low;
}
D2-SCHED {
transmit-rate percent 20;
priority low;
drop-profile-map loss-priority low protocol any drop-profile WRED-PROFILE;
}
D3-SCHED {
transmit-rate {
remainder;
}
priority low;
drop-profile-map loss-priority low protocol any drop-profile WRED-PROFILE;
}
D4-SCHED {
transmit-rate percent 2;
priority low;
drop-profile-map loss-priority low protocol any drop-profile WRED-PROFILE;
}
NETWORK-CTL-SCHED {
transmit-rate percent 3;
priority high;
}