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12-26-2013 10:04 AM - edited 03-07-2019 05:15 PM
Hello,
I am trying to upgrade from 3750 to 3850. Following is my outbound WTD qos config on 3750:
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 18 20 22 32 34 36 38
mls qos srr-queue output dscp-map queue 2 threshold 2 24 26 28 30
mls qos srr-queue output dscp-map queue 2 threshold 3 48 56
mls qos srr-queue output dscp-map queue 3 threshold 3 0
mls qos srr-queue output dscp-map queue 4 threshold 1 8
mls qos srr-queue output dscp-map queue 4 threshold 3 4 10 12 14
mls qos queue-set output 1 threshold 2 70 80 100 100
mls qos queue-set output 1 threshold 4 40 100 100 100
What will be the equivalent config for the 3850? I am not able to find the right documentation for 3850.
Following is what I created but I believe it wouldnt handle WTD.
class-map match-any EF
match dscp ef
class-map match-any CS3AF41
match dscp cs3 af41
class-map match-any AF21
match dscp af21
class-map match-any AF11
match dscp af11
class-map match-any Default
match dscp default
policy-map QOS-OUTBOUND
class EF
priority level 1
class CS3AF41
priority level 2
class AF21
bandwidth remaining percent 20
shape average percent 100
class AF11
bandwidth remaining percent 20
shape average percent 100
class Default
bandwidth remaining percent 60
shape average percent 100
Also, when I try to apply this to an interface, it accepts it but its not visible under show runn. Am I missing anything?
I would appreciate any help with this.
Thank you.
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12-28-2013 02:40 PM
Hi,
3850 is not supporting MLS QoS (so any QoS commands start with mls keyword is not applicable in this switch platform- even thoug they are accepted).
It is a MQC QoS based switch platform (like 6500,4500). There are few Queing models (1P7Q3T, 2P6Q3T for wired & 2P2Q for wireless) supported in this platform. Please refer below post for more detail
http://mrncciew.com/2013/12/23/3850-qos-part-2-queuing-models/
Based on this you need to derive your config changes. As you can see in the above "queue limit x " is the command used to configure WTD for non-priority queues (ie Q2 to Q6)
Regarding running config, you can use "show running-config all" command to see all the configuration lines of your switch including default configs
HTH
Rasika
***Pls rate all useful responses ****
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12-26-2013 11:21 AM
Hi,
The 3850 series runs IOS XE. So the QOS config is different from the 3750 series. You would need to look at the config guide and change the commands as needed.
HTH
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12-28-2013 02:40 PM
Hi,
3850 is not supporting MLS QoS (so any QoS commands start with mls keyword is not applicable in this switch platform- even thoug they are accepted).
It is a MQC QoS based switch platform (like 6500,4500). There are few Queing models (1P7Q3T, 2P6Q3T for wired & 2P2Q for wireless) supported in this platform. Please refer below post for more detail
http://mrncciew.com/2013/12/23/3850-qos-part-2-queuing-models/
Based on this you need to derive your config changes. As you can see in the above "queue limit x " is the command used to configure WTD for non-priority queues (ie Q2 to Q6)
Regarding running config, you can use "show running-config all" command to see all the configuration lines of your switch including default configs
HTH
Rasika
***Pls rate all useful responses ****
