Hello

Can one of you QOS engineers "un-dumb" me ?

we have a QFX-5200 with HCI cluster (all 100g) and 80G channel uplinks to the "old" core (in migration from cisco N9K to the qfx)

we recently moved the Firewall connection this QFX, there a EX4600 in the middle

so Old core 80g > QFX (with hci direct) > 10g link to ex4600 > 10g link to FW

this 10g link is running at about 1gig all the time during peak hours. so about 10%

the defualt OQS on the QFX was dropping 300-500pps

I put QOS on it and no matter what I adjust it still drops packets.

since it is traffic to the Inet firewall most of it is BE

```
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VOIP-EF loss-priority low code-points cs5
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VOIP-EF loss-priority low code-points ef
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class CONTROL-CS6-CS7 loss-priority low code-points cs6
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class CONTROL-CS6-CS7 loss-priority low code-points cs7
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points cs3
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points cs4
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af31
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af32
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af33
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af41
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af42
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class VIDEO-AF41 loss-priority low code-points af43
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points cs1
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points cs2
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af11
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af12
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af13
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af21
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af22
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class DATA-AF21 loss-priority low code-points af23
set groups cos-COS class-of-service classifiers dscp cos-dscp-classifier forwarding-class Best-Effort-0 loss-priority high code-points be
set groups cos-COS class-of-service drop-profiles Best-effort interpolate fill-level 98
set groups cos-COS class-of-service drop-profiles Best-effort interpolate fill-level 100
set groups cos-COS class-of-service drop-profiles Best-effort interpolate drop-probability 0
set groups cos-COS class-of-service drop-profiles Best-effort interpolate drop-probability 100
set groups cos-COS class-of-service forwarding-classes class VOIP-EF queue-num 5
set groups cos-COS class-of-service forwarding-classes class VIDEO-AF41 queue-num 2
set groups cos-COS class-of-service forwarding-classes class CONTROL-CS6-CS7 queue-num 7
set groups cos-COS class-of-service forwarding-classes class DATA-AF21 queue-num 1
set groups cos-COS class-of-service forwarding-classes class Best-Effort-0 queue-num 0
set groups cos-COS class-of-service interfaces xe-*/*/* scheduler-map cos-sched-map
set groups cos-COS class-of-service interfaces xe-*/*/* unit 0 classifiers dscp cos-dscp-classifier
set groups cos-COS class-of-service interfaces ae255 scheduler-map cos-sched-map
set groups cos-COS class-of-service interfaces ae255 unit 0 classifiers dscp cos-dscp-classifier
set groups cos-COS class-of-service interfaces et-*/*/* unit 0 classifiers dscp cos-dscp-classifier
set groups cos-COS class-of-service rewrite-rules dscp Branch-Rewrite forwarding-class VOIP-EF loss-priority low code-point ef
set groups cos-COS class-of-service rewrite-rules dscp Branch-Rewrite forwarding-class VIDEO-AF41 loss-priority low code-point af41
set groups cos-COS class-of-service rewrite-rules dscp Branch-Rewrite forwarding-class CONTROL-CS6-CS7 loss-priority low code-point cs7
set groups cos-COS class-of-service rewrite-rules dscp Branch-Rewrite forwarding-class DATA-AF21 loss-priority low code-point af21
set groups cos-COS class-of-service rewrite-rules dscp Branch-Rewrite forwarding-class Best-Effort-0 loss-priority low code-point 000000
set groups cos-COS class-of-service scheduler-maps cos-sched-map forwarding-class VOIP-EF scheduler cos-VOIP-scheduler
set groups cos-COS class-of-service scheduler-maps cos-sched-map forwarding-class VIDEO-AF41 scheduler cos-video-scheduler
set groups cos-COS class-of-service scheduler-maps cos-sched-map forwarding-class CONTROL-CS6-CS7 scheduler cos-control-scheduler
set groups cos-COS class-of-service scheduler-maps cos-sched-map forwarding-class DATA-AF21 scheduler cos-data-scheduler
set groups cos-COS class-of-service scheduler-maps cos-sched-map forwarding-class Best-Effort-0 scheduler cos-best-effort
set groups cos-COS class-of-service schedulers cos-VOIP-scheduler transmit-rate percent 1
set groups cos-COS class-of-service schedulers cos-VOIP-scheduler buffer-size percent 1
set groups cos-COS class-of-service schedulers cos-VOIP-scheduler priority low
set groups cos-COS class-of-service schedulers cos-video-scheduler transmit-rate percent 2
set groups cos-COS class-of-service schedulers cos-video-scheduler buffer-size percent 2
set groups cos-COS class-of-service schedulers cos-video-scheduler priority low
set groups cos-COS class-of-service schedulers cos-control-scheduler transmit-rate percent 1
set groups cos-COS class-of-service schedulers cos-control-scheduler buffer-size percent 2
set groups cos-COS class-of-service schedulers cos-control-scheduler priority low
set groups cos-COS class-of-service schedulers cos-data-scheduler transmit-rate percent 1
set groups cos-COS class-of-service schedulers cos-data-scheduler buffer-size percent 1
set groups cos-COS class-of-service schedulers cos-data-scheduler priority low
set groups cos-COS class-of-service schedulers cos-best-effort transmit-rate percent 95
set groups cos-COS class-of-service schedulers cos-best-effort buffer-size remainder
set groups cos-COS class-of-service schedulers cos-best-effort priority low
```

and what im seeing

```
Egress queues: 10 supported, 8 in use
Queue counters: Queued packets Transmitted packets Dropped packets
0 109550315 109355079 195236
1 316138 316138 0
2 399357 399357 0
3 0 0 0
4 0 0 0
5 1038004 1038004 0
7 833 833 0
8 1 1 0
Queue number: Mapped forwarding classes
0 Best-Effort-0
1 DATA-AF21
2 VIDEO-AF41
3 fcoe
4 no-loss
5 VOIP-EF
7 CONTROL-CS6-CS7
8 mcast
CoS information:
Direction : Output
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % usec
0 Best-Effort-0 95 9500000000 r 0 low none
1 DATA-AF21 1 100000000 1 0 low none
2 VIDEO-AF41 2 200000000 2 0 low none
5 VOIP-EF 1 100000000 1 0 low none
7 CONTROL-CS6-CS7 1 100000000 2 0 low none
Physical interface: xe-0/0/26:2, Enabled, Physical link is Up
Interface index: 653, SNMP ifIndex: 554
Forwarding classes: 12 supported, 8 in use
Egress queues: 10 supported, 8 in use
Queue: 0, Forwarding classes: Best-Effort-0
Queued:
Packets : 117233136 79998 pps
Bytes : 169432766982 936969056 bps
Transmitted:
Packets : 117022062 79746 pps
Bytes : 169111887825 933907152 bps
Tail-dropped packets : Not Available
RL-dropped packets : 0 0 pps
RL-dropped bytes : 0 0 bps
Total-dropped packets: 211074 252 pps
Total-dropped bytes : 320879157 3061904 bps
Queue: 1, Forwarding classes: DATA-AF21
Queued:
Packets : 339222 201 pps
Bytes : 213323209 1471928 bps
Transmitted:
Packets : 339222 201 pps
Bytes : 213323209 1471928 bps
Tail-dropped packets : Not Available
RL-dropped packets : 0 0 pps
RL-dropped bytes : 0 0 bps
Total-dropped packets: 0 0 pps
Total-dropped bytes : 0 0 bps
Queue: 2, Forwarding classes: VIDEO-AF41
Queued:
Packets : 430761 300 pps
Bytes : 262409561 1547872 bps
Transmitted:
Packets : 430761 300 pps
Bytes : 262409561 1547872 bps
Tail-dropped packets : Not Available
RL-dropped packets : 0 0 pps
RL-dropped bytes : 0 0 bps
Total-dropped packets: 0 0 pps
Total-dropped bytes : 0 0 bps
```

so i know the ques look funny but i'm trying everything here. 99% does seem to be um BE

I CAN add another link or make it 40G, but that just moves the issues to the EX4600

im hoping Im just QOS DUMB and am forgetting something or there is something i need to do on the QFX that normal EX do not need

PS: I know the drop profile is not applied, in the past having a drop profile would help in this case it has not helped.

Thank you in advance for you time