[c-nsp] QOS Configuration Help

Wed Mar 5 18:07:21 EST 2008

Mike,

Yes I do have the global mls qos command enabled.  This is the default
configuration:

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

Would I need to change these?

Thanks,
Dan.

On Wed, Mar 5, 2008 at 4:57 PM, Mike Louis <MLouis at nwnit.com> wrote:
> Do you have the global "mls qos" command enabled?
>
>
>  You might want to mls qos trust dscp on the video server.
>
>  Looks like you have " spanning-tree portfast trunk" configured on access only port "switchport mode access". Only needs to be spanning-tree portfast on access only port.
>
>  Also, make sure you have your mls qos maps setup correctly
>
>
>  Here is a sample from a voice deployment
>
>  mls qos map cos-dscp 0 8 16 24 34 46 48 56
>  mls qos map ip-prec-dscp 0 8 16 24 34 46 48 56
>  mls qos srr-queue input priority-queue 1 bandwidth 40
>  mls qos queue-set output 1 threshold 1 400 400 100 400
>  mls qos queue-set output 1 threshold 2 400 400 100 400
>  mls qos queue-set output 1 buffers 10 40 20 30
>  mls qos
>
>
>
>  -----Original Message-----
>  From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Dan Letkeman
>  Sent: Wednesday, March 05, 2008 5:32 PM
>  To: cisco-nsp at puck.nether.net
>  Subject: [c-nsp] QOS Configuration Help
>
>  Hello,
>
>  I am in the process of configuring QOS for our video system.
>  Currently I'm having trouble configuring our 2960's with srr queuing.
>  I have not yet tackled the 3560's.
>
>  Here is the config I'm working with, there are more 3560's and 2960's,
>  but this should give an idea on how I have configured them:
>
>  3560:
>
>  class-map match-any VIDEO
>   match access-group name POLYCOM
>  !
>  policy-map in
>   class VIDEO
>    set dscp af41
>  !
>  interface FastEthernet0/24
>  description test trunk to 2960
>  switchport trunk encapsulation dot1q
>  switchport trunk native vlan 500
>  switchport trunk allowed vlan 500
>  switchport mode trunk
>  srr-queue bandwidth share 10 10 60 20
>  srr-queue bandwidth shape  10  0  0  0
>  srr-queue bandwidth limit 20
>  priority-queue out
>  mls qos trust cos
>  spanning-tree portfast
>  !
>  ip access-list extended POLYCOM
>   permit ip host 192.168.50.12 any
>
>
>  2960:
>
>  class-map match-any VIDEO
>   match access-group name POLYCOM
>  !
>  policy-map in
>   class VIDEO
>    set precedence 4
>  !
>  interface FastEthernet0/1
>   description - Codec plugged in here
>   switchport access vlan 500
>   switchport mode access
>   ip access-group POLYCOM in
>   srr-queue bandwidth share 10 10 60 20
>   srr-queue bandwidth shape  10  0  0  0
>   auto qos voip trust
>   spanning-tree portfast trunk
>   service-policy input in
>
>  interface FastEthernet0/24
>   description - trunk to 3560
>   switchport trunk native vlan 500
>   switchport trunk allowed vlan 500
>   switchport mode trunk
>   srr-queue bandwidth share 10 10 60 20
>   srr-queue bandwidth shape  10  0  0  0
>   srr-queue bandwidth limit 35
>   priority-queue out
>   auto qos voip trust
>   spanning-tree portfast trunk
>
>  ip access-list extended POLYCOM
>   permit ip host 192.168.50.12 any
>
>  I'm not exactly sure what is happening, but i'm not getting any hits
>  on the acl's.  The Codec is 192.168.50.12, the trunk's are all
>  working, and the network is working fine.
>
>  Is there something i'm missing?
>
>  Thanks,
>  Dan.
>
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