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QoS on Nexus 9K qos-group

russjstewart
Level 1
Level 1

Apologies for sounding like a complete idiot, but I suspect I am one. Is anyone able to provide any insight on how qos-groups are defined on the N9K.

 

I am trying to follow how queuing works, and I can get as far as the following ( not all output shown)

 

SDC-CORE-RB-01# sh policy-map int eth1/1


Global statistics status : enabled

Ethernet1/1

Service-policy (queuing) output: default-8q-out-policy
SNMP Policy Index: 301991314

Class-map (queuing): c-out-8q-q7 (match-any)
priority level 1
queue dropped pkts : 0
queue depth in bytes : 0

 

SDC-CORE-RB-01# show class-map type queuing c-out-8q-q7


Type queuing class-maps
========================

class-map type queuing match-any c-out-8q-q7
Description: Classifier for Egress queue 7
match qos-group 7

 

 

My problem is I cannot find any reference to "qos-group 7"  In an IOS-XE world the match command would relate to a ACL or dscp setting or similar.  

 

If anyone could point me in the right direction it would be greatly appreciated

 

Thanks for time in advance

4 Replies 4

Thanks Georg, i will review today and get back.

pman
Spotlight
Spotlight

Hi,
Following what has already been written, try to read the following pages in the attached article, you may find it interesting,

 

page 18 - 8 Class Queuing Model
page 56 - Life of a Packet in Cloud Scale ASIC
page 58 - Nexus 9000 QoS Configuration Model
page 59 - Ingress QOS / Egress Queuing Policies
page 60 - Putting it all together
page 115 - Classification & Marking: Nexus 9000
page 129 - CoS to Queue Mapping - Nexus 9000
page 130 - Egress Queuing Configuration: Nexus9000

 

https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKDCN-3346.pdf

Thanks for the replay PMAN, I will review the document today.

 

 

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