Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

QoS Explainations and proper implementation.

1. I am working for a few different school districts as a phone-in-tech. They all have VoIP issues where calls will be dropped during when there is alot of network traffic. None of the switches have any QoS implemented on them. I am wondering what commands are  needed to properly configure QoS through out the network.

But most importantly I am trying to understand what the commands mean.

I feel like I have a good grasp of the mls qos map cos-dscp command means. Im not too positive on what the numbers after it mean. I think I understand it as a ranking of some sort.

mls qos map cos-dscp 0 8 16 24 34 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 map cos-dscp 0 8 16 24 34 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

can someone explain to me the syntax happening in the mls qos srr-queue lines and what they mean?

I think it applies to the egress ports i just don't quite grasp what the threshold values mean.

Is there anyone that can shed some light on the situation? Thanks!

Everyone's tags (3)
1 ACCEPTED SOLUTION

Accepted Solutions
Green

QoS Explainations and proper implementation.

Hi,

Have a look at this link

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_tech_note09186a0080883f9e.shtml

This explains QOS on a 3750 (same as 3560) better than I can

HTH

Alex

Regards, Alex. Please rate useful posts.
1 REPLY
Green

QoS Explainations and proper implementation.

Hi,

Have a look at this link

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_tech_note09186a0080883f9e.shtml

This explains QOS on a 3750 (same as 3560) better than I can

HTH

Alex

Regards, Alex. Please rate useful posts.
379
Views
0
Helpful
1
Replies
CreatePlease login to create content