From: Ryan Morris (ryan@egate.net)
Date: Tue Oct 02 2007 - 11:05:54 ART
I used auto qos in my production network and it works great.
Also take a look at the smart ports macros for phone, host, router, and
trunk connections:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_see/configuration/guide/swmacro.html
I do recommend you have some idea of what the commands do, but if you're
on this list, you probably do.
Regards,
Ryan Morris
CCIE #18953
On Tue, 2 Oct 2007, Antonio Soares wrote:
> Thanks Ash and Avner for you feedback.
>
> You both suggest the use of Auto-QoS. I'll take a closer look although i'm
> not a big fan of these type of features. You insert one command and the
> router/switch generates dozens for you. I tested the command "auto qos voip
> cisco-phone" in a 3750 and got this:
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> !
> mls qos map cos-dscp 0 8 16 26 32 46 48 56
> mls qos srr-queue input bandwidth 90 10
> mls qos srr-queue input threshold 1 8 16
> mls qos srr-queue input threshold 2 34 66
> mls qos srr-queue input buffers 67 33
> mls qos srr-queue input cos-map queue 1 threshold 2 1
> mls qos srr-queue input cos-map queue 1 threshold 3 0
> mls qos srr-queue input cos-map queue 2 threshold 1 2
> mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7
> mls qos srr-queue input cos-map queue 2 threshold 3 3 5
> mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15
> mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7
> mls qos srr-queue input dscp-map queue 1 threshold 3 32
> mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22
> 23
> mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39
> 48
> mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55
> 56
> mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63
> mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30
> 31
> mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46
> 47
> mls qos srr-queue output cos-map queue 1 threshold 3 5
> mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
> mls qos srr-queue output cos-map queue 3 threshold 3 2 4
> mls qos srr-queue output cos-map queue 4 threshold 2 1
> mls qos srr-queue output cos-map queue 4 threshold 3 0
> mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46
> 47
> mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30
> 31
> mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54
> 55
> mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62
> 63
> mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22
> 23
> mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38
> 39
> mls qos srr-queue output dscp-map queue 4 threshold 1 8
> mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15
> mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7
> mls qos queue-set output 1 threshold 1 138 138 92 138
> mls qos queue-set output 1 threshold 2 138 138 92 400
> mls qos queue-set output 1 threshold 3 36 77 100 318
> mls qos queue-set output 1 threshold 4 20 50 67 400
> mls qos queue-set output 2 threshold 1 149 149 100 149
> mls qos queue-set output 2 threshold 2 118 118 100 235
> mls qos queue-set output 2 threshold 3 41 68 100 272
> mls qos queue-set output 2 threshold 4 42 72 100 242
> mls qos queue-set output 1 buffers 10 10 26 54
> mls qos queue-set output 2 buffers 16 6 17 61
> mls qos
> !
> interface FastEthernet1/0/1
> srr-queue bandwidth share 10 10 60 20
> srr-queue bandwidth shape 10 0 0 0
> mls qos trust device cisco-phone
> mls qos trust cos
> auto qos voip cisco-phone
> !
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
> I feel like loosing control when i enable this. And do i really need it ?
>
>
>
> Regards,
>
> Antonio Soares
> CCIE #18473, CCNP, CCIP
> http://pwp.netcabo.pt/amsoares/
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Antonio Soares
> Sent: terga-feira, 2 de Outubro de 2007 2:18
> To: ccielab@groupstudy.com
> Subject: QoS in a Campus Network with IP Telephony Solution
>
> Hello group,
>
> I need to configure QoS in a Campus Network composed of several 3750s, 4500s
> and 6500s. I'm looking for the minimal config in order to avoid potential
> voice quality issues. Right now i have this:
>
>
> ##############################
> Catalysts 3750:
> ##############################
> 4Q3T (or 1P3Q3T)
> ##############################
> Ports with PC+IP Phone:
> ##############################
> mls qos trust cos
> mls qos trust extend cos 0
> priority-queue out
> ##############################
> Uplinks:
> ##############################
> mls qos trust dscp
> priority-queue out
> ##############################
>
>
> ##############################
> Catalysts 4500:
> ##############################
> 4Q1T (or 1P3Q1T)
> ##############################
> Ports with PC+IP Phone:
> ##############################
> qos trust cos
> qos trust extend cos 0
> tx-queue 3
> priority high
> ##############################
> Uplinks:
> ##############################
> mls qos trust dscp
> tx-queue 3
> priority high
> ##############################
>
>
> ##############################
> Catalyst 6500:
> ##############################
> Ports with PC+IP Phone:
> ##############################
> WS-X6148-45AF
> 2Q2T
> WS-X6348-RJ-45
> 2Q2T
> ##############################
> mls qos trust cos
> mls qos trust extend cos 0
> ##############################
> Uplinks:
> ##############################
> WS-X6724-SFP
> 1P3Q8T
> ##############################
> mls qos trust dscp
> priority-queue cos-map 1 5
> ##############################
> Voice Servers:
> ##############################
> WS-X6748-GE-TX
> 1P3Q8T
> ##############################
> mls qos trust dscp
> priority-queue cos-map 1 5
> ##############################
>
>
> I know that Cisco provides a QoS Network Design Guide:
>
> http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigrati
> on_09186a008049b062.pdf
>
>
> But i really wonder if i need to implement all those complex configurations
> to accomplish my goal.
>
>
> Any sugestions are welcome.
>
>
> Thanks.
>
> Regards,
>
> Antonio Soares
> CCIE #18473, CCNP, CCIP
> http://pwp.netcabo.pt/amsoares/
>
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