02-04-2019 04:45 PM - edited 02-04-2019 11:19 PM
Hi,
I'm a little bit confused about the available/usable queues on a Satellite ASR9000v.
In a FAQ about the QoS offload topic two Cisco employees wrote this:
A config guide chapter relating QoS offload, shows the following config which use the qos-group 3 with no special focus on priority queuing. Are all Queues 0-5 (6 Queues in total) usable and why is of all things Queue-3 reserved for priority use?
interface GigabitEthernet200/0/0/10 nv service-policy input access ! ! interface Bundle-Ether200 ipv4 point-to-point ipv4 unnumbered Loopback3000 nv satellite-fabric-link satellite 200 service-policy output icl redundancy iccp-group 10 ! remote-ports GigabitEthernet 0/0/0-43 ! ! ! policy-map icl class icl1 bandwidth remaining percent 5 ! class icl2 bandwidth remaining percent 4 ! class icl3 priority level 1 ! class icl4 bandwidth remaining percent 1 ! class class-default bandwidth remaining percent 1 ! end-policy-map ! RP/0/RSP1/CPU0:vkg3(config)#show running-config policy-map access policy-map access class access1 set qos-group 1 ! class access2 set qos-group 2 ! class access3 set qos-group 3 ! class access4 set qos-group 4 ! class class-default ! end-policy-map ! class-map match-any access1 match cos 1 match precedence 1 end-class-map ! class-map match-any access2 match cos 2 match precedence 2 end-class-map ! class-map match-any access3 match cos 3 match precedence 3 end-class-map ! class-map match-any access4 match cos 4 match precedence 4 end-class-map ! class-map match-any icl1 match qos-group 1 end-class-map ! class-map match-any icl2 match qos-group 2 end-class-map ! class-map match-any icl3 match qos-group 3 end-class-map ! class-map match-any icl4 match qos-group 4 end-class-map !
Regards,
Jens
Solved! Go to Solution.
02-05-2019 06:10 AM
Yes, qos-group 3 is the only one that can be used for high priority traffic.
The qos-group 0 is also available to you. The config guide that you have shared doesn't call it out because its use is implicit. If you don't configure any qos-group explicitly, traffic will use qos-group 0.
02-05-2019 02:30 AM
The priority action in qos-group 3 is implicit. There is no need to configure it explicitly.
You can make use of all qos-groups in the range 0 to 5. Groups 6 and 7 are reserved.
hope this helps,
/Aleksandar
02-05-2019 02:44 AM
Hi Aleksandar,
thank you for the quick answer.
So, the Queue-3, linked to qos-group 3, is the right and only queue for user traffic requiring LLQ handling?
You wrote that I can use all qos-groups in the range from 0 to 5.
A statement in a config guide, that I've found, mentioned the range only from 1 to 5 and Queue-0 is in use if no other policy matches (class-default)?
02-05-2019 06:10 AM
Yes, qos-group 3 is the only one that can be used for high priority traffic.
The qos-group 0 is also available to you. The config guide that you have shared doesn't call it out because its use is implicit. If you don't configure any qos-group explicitly, traffic will use qos-group 0.
02-05-2019 06:15 AM
Thank you Aleksandar!
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