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DNAC QoS config pushed to switch

tb_cw
Beginner
Beginner

Hi all,

I'm testing in DNAC with Application Policy, QoS and Queing Profiles and got some questions regarding the switch config after pushing policy to devices.

DNAC version is 2.2.2.5 and under "Policy --> Application Policy" I created an own Test Policy and assigned a Test Queuing Policy (see pic in attachm). In this queuing policy (just for testing - not in prod ;o)) I created for every class a bandwidth value with 1 % except the default (best effort) class - thatone I gave 89% ( the rest of 100% -11%).

 

After deploying that policy to a C9300-48P switch with ver 17.03.04 my assumption was that I will found the value of the queuing policy in the config but my config looks like that (snippets):

 

policy-map DNA-dscp#APIC_QOS_Q_OUT
class DNA-EZQOS_2P6Q3T_9K#VOICE-PQ1
priority level 1
police rate percent 1
queue-buffers ratio 15
class DNA-EZQOS_2P6Q3T_9K#VIDEO-PQ2
priority level 2
police rate percent 2
queue-buffers ratio 10
class DNA-EZQOS_2P6Q3T_9K#CONTROL-PLANE
bandwidth remaining percent 3
queue-buffers ratio 10
class DNA-EZQOS_2P6Q3T_9K#MULTIMEDIA-CONFERENCING
bandwidth remaining percent 1
queue-buffers ratio 10
queue-limit dscp af41 percent 100
queue-limit dscp af42 percent 90
queue-limit dscp af43 percent 80
class DNA-EZQOS_2P6Q3T_9K#MULTIMEDIA-STREAMING
bandwidth remaining percent 1
queue-buffers ratio 10
queue-limit dscp af32 percent 90
queue-limit dscp af33 percent 80
class DNA-EZQOS_2P6Q3T_9K#TRANSACTIONAL-DATA
bandwidth remaining percent 1
queue-buffers ratio 10
random-detect dscp-based
random-detect dscp 18 percent 80 100
random-detect dscp 20 percent 70 100
random-detect dscp 22 percent 60 100
class DNA-EZQOS_2P6Q3T_9K#BULK-DATA
bandwidth remaining percent 2
queue-buffers ratio 10
random-detect dscp-based
random-detect dscp 8 percent 60 100
random-detect dscp 10 percent 80 100
random-detect dscp 12 percent 70 100
random-detect dscp 14 percent 60 100
class class-default
bandwidth remaining percent 92
queue-buffers ratio 25
random-detect dscp-based
random-detect dscp 0 percent 80 100


In the config at the switch are 8 classes left (not the 12 in DNAC) and they have partly different names and bandwidth % values.

# in switchclass name in switchtype of in sw% in switch# in DNACname in DNAC% in DNAC
1DNA-EZQOS_2P6Q3T_9K#VOICE-PQ1policy rate perc11Business Relevant Voice1
2DNA-EZQOS_2P6Q3T_9K#VIDEO-PQ2policy rate perc22Business Relevant Broadcast Video1
3DNA-EZQOS_2P6Q3T_9K#CONTROL-PLANEbandwidth remaining perc3 ??? 
4DNA-EZQOS_2P6Q3T_9K#MULTIMEDIA-CONFERENCINGbandwidth remaining perc14Multimedia Conferencing1
5DNA-EZQOS_2P6Q3T_9K#MULTIMEDIA-STREAMINGbandwidth remaining perc15Multimedia Streaming1
6DNA-EZQOS_2P6Q3T_9K#TRANSACTIONAL-DATAbandwidth remaining perc19Transactional Data1
7DNA-EZQOS_2P6Q3T_9K#BULK-DATAbandwidth remaining perc210Bulk Data1
8class-defaultbandwidth remaining perc9212Default (Best Effort)89
       


In switch config are missing these classes from DNAC GUI (diffs from switch config to DNAC GUI):
3 (real time interactive - 1%) / 6 (network control - 1%) / 7 (relevant signaling - 1 %) / 8 (OAM - 1%) / 11 (scavenger - 1%)


Is #3 (CONTROL-PLANE) in switch config the sum of 3,6 and 7 in DNAC ???

Where is "scavenger" gone ? Is it integrated in 7 - BULK DATA ???? But I think, that make no sense: "Bulk Data" is business relevant and "scavenger" is business irrelevant?

Why does "class-default" has become 92% ?

Where are the classes and these values come from? Can someone explain this behavior or has an explanation for it?

Many thanks in advance,

Thomas.

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