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Cisco QOS Newby - QOS config on Catalyst 9300 - Original commands from 3750 / 3850 switches

robbiejmackay
Level 1
Level 1

Hi Folks,

 

I am a newby to QOS and I have come across an issue whilst attempting to upgrade switches from 3750 to 9300.

On our existing switches, the QOS commands are as follows, however our new Catalyst 9300 IOS XE switches will not accept these commands.

 

Does anyone know how to translate these commands to make them usable on Catalyst 9300 IOS XE switches. Any help and advice would be greatly appreciated.

 

Existing Config - 3750 switches

mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 1 2 4
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos srr-queue output cos-map queue 2 threshold 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 0
mls qos srr-queue output cos-map queue 4 threshold 3 1
mls qos srr-queue output dscp-map queue 1 threshold 3 46
mls qos srr-queue output dscp-map queue 2 threshold 1 16 20 22 25 32 34 36 38
mls qos srr-queue output dscp-map queue 2 threshold 2 24 26
mls qos srr-queue output dscp-map queue 2 threshold 3 56
mls qos srr-queue output dscp-map queue 3 threshold 2 48
mls qos srr-queue output dscp-map queue 3 threshold 3 0
mls qos srr-queue output dscp-map queue 4 threshold 3 8 10 12 14
mls qos queue-set output 1 threshold 1 138 138 92 138
mls qos queue-set output 1 threshold 2 400 400 100 800
mls qos queue-set output 1 threshold 3 3200 3200 100 3200
mls qos queue-set output 1 threshold 4 40 100 100 100
mls qos queue-set output 2 threshold 1 149 149 100 149
mls qos queue-set output 2 threshold 2 118 118 100 235
mls qos queue-set output 2 threshold 3 41 68 100 272
mls qos queue-set output 2 threshold 4 42 72 100 242
mls qos queue-set output 1 buffers 10 45 26 19
mls qos queue-set output 2 buffers 16 6 17 61
mls qos

 

1 Reply 1

Collin Clark
VIP Alumni
VIP Alumni
Are you using auto-qos (looks like it from the config you posted). If so there is no need to copy any of that over to the 9300. Under the user interfaces you can enter 'auto qos ...' and that portion of the config should be automagically generated for you.