core config

[rnbhatija]

i am implementing 6509 (as core)

that will be connected to us560 pbx and a 3560 core switch, and has 5 x WS-X6148A-GE-45AF modules  that will be used to for access and esx host traffic.

i will be implementing auto qos (auto qos voip cisco-phone), on access ports to pc/phone traffic.,

1) should i run auto qos voip trust on trunk interfaces and one connected to pbx?

2) also do i need to run mls qos map cos-dscp and/or  mls qos map dscp-cos on global.

thanks

[Philip D'Ath]

You should be able to use the built in macro's.  These configure things to Cisco recommendations based on the hardware platform they are executed on.

On a trunk port to another switch:

interface Gigabit a/b/c
  macro apply cisco-switch

On a trunk port to another router (such as a UC560):

interface Gigabit a/b/c
  macro apply cisco-router

[rnbhatija]

i believe i need to update ios for macros. running 12.2(17)

ill check once updated

thanks Philip

[Philip D'Ath]

What supervisor engine are you running?

[rnbhatija]

 Supervisor Engine 720 (Active)         WS-SUP720-BASE  

[Philip D'Ath]

If you are going to make a software change you might want to consider jumping directly to 12.2(33)SXH5.  This is assuming you are running a "vanilla" 720, rather than one with an MFC of some kind.

[Mark Malone]

Hi I have this running on multiple 65s running those blades , all you need to apply is auto qos voip trust

when you do this based on the specific hardware queues it builds this below

It also build global qos below too , it depends on your SUP whether mls is supported too but not really required if you implement auto qos as the voice will be trusted , sup720 support mls not sup 10T , if it is u can also run mls qos trust dscp on uplinks

  1   48  48-port 10/100/1000 RJ45 EtherModule   WS-X6148A-GE-TX    SAL10xxxxxxx

interface GigabitEthernet1/5
 switchport
 switchport access vlan 166
 platform qos trust cos
 wrr-queue bandwidth 20 100 200
 priority-queue queue-limit 5
 wrr-queue queue-limit 65 15 15
 wrr-queue random-detect min-threshold 1 70 100 100 100 100 100 100 100
 wrr-queue random-detect min-threshold 2 70 100 100 100 100 100 100 100
 wrr-queue random-detect min-threshold 3 40 40 50 50 60 60 70 70
 wrr-queue random-detect max-threshold 1 100 100 100 100 100 100 100 100
 wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100
 wrr-queue random-detect max-threshold 3 70 70 80 80 90 90 100 100
 wrr-queue cos-map 2 1 1 2
 wrr-queue cos-map 3 5 3 4
 wrr-queue cos-map 3 7 6 7
 auto qos voip trust
 spanning-tree portfast edge
 spanning-tree cost 3100
 ip dhcp snooping limit rate 7
end

table-map cos-discard-class-map
 map from  0 to 0
 map from  1 to 10
 map from  2 to 18
 map from  3 to 24
 map from  4 to 34
 map from  5 to 46
 map from  6 to 48
 map from  7 to 56
table-map discard-class-cos-map
 map from  0 1 2 3 4 5 6 7 to 0
 map from  8 9 10 11 12 13 14 15 to 1
 map from  16 17 18 19 20 21 22 23 to 2
 map from  24 25 26 27 28 29 30 31 to 3
 map from  32 33 34 35 36 37 38 39 to 4
 map from  40 41 42 43 44 45 46 47 to 5
 map from  48 49 50 51 52 53 54 55 to 6
 map from  56 57 58 59 60 61 62 63 to 7
!

To trouble shoot and see the queues use the below

sh queueing interface g1/5 detailed

sh queueing interface g1/5 detailed
Interface GigabitEthernet1/5 queueing strategy:  Weighted Round-Robin

  Port QoS is enabled globally
  Queueing on Gi1/5: Tx Enabled Rx Enabled

Trust boundary disabled

  Trust state: trust COS
  Trust state in queueing: trust COS
  Extend trust state: not trusted [COS = 0]
  Default COS is 0
    Queueing Mode In Tx direction: mode-cos
    Transmit queues [type = 1p3q8t]:
    Queue Id    Scheduling  Num of thresholds
    -----------------------------------------
       01         WRR                 08
       02         WRR                 08
       03         WRR                 08
       04         Priority            01

    WRR bandwidth ratios:   20[queue 1] 100[queue 2] 200[queue 3]
    queue-limit ratios:     65[queue 1]  15[queue 2]  15[queue 3]   5[Pri Queue]

    queue tail-drop-thresholds
    --------------------------
    1     70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
    2     70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
    3     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

    queue random-detect-min-thresholds
    ----------------------------------
      1    70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
      2    70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
      3    40[1] 40[2] 50[3] 50[4] 60[5] 60[6] 70[7] 70[8]

    queue random-detect-max-thresholds
    ----------------------------------
      1    100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
      2    100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]
      3    70[1] 70[2] 80[3] 80[4] 90[5] 90[6] 100[7] 100[8]

    WRED disabled queues:

    queue thresh cos-map
    ---------------------------------------
    1     1      0
    1     2
    1     3
    1     4
    1     5
    1     6
    1     7
    1     8
    2     1      1 2
    2     2
    2     3
    2     4
    2     5
    2     6
    2     7
    2     8
    3     1
    3     2
    3     3
    3     4
    3     5      3 4
    3     6
    3     7      6 7
    3     8
    4     1      5

    Queueing Mode In Rx direction: mode-cos
    Receive queues [type = 1q2t]:
    Queue Id    Scheduling  Num of thresholds
    -----------------------------------------
       1         Standard            2

    queue tail-drop-thresholds
    --------------------------
    1     80[1] 100[2]

    queue thresh cos-map
    ---------------------------------------
    1     1      0 1 2 3 4
    1     2      5 6 7

  Packets dropped on Transmit:
    BPDU packets:  0
    que thr            dropped          30-s bytes          peak bytes 5-mins avg bps   peak bps  [cos-map]
    ------------------------------------------------------------------------------------------------------

    1    1                   0                   0                   0            0            0   [0 ]
    2    1                   0                   0                   0            0            0   [1 2 ]
    3    5                   0                   0                   0            0            0   [3 4 ]
    3    7                   0                   0                   0            0            0   [6 7 ]
    4    1                   0                   0                   0            0            0   [5 ]

  Packets dropped on Receive:
    BPDU packets:  0
    que thr            dropped          30-s bytes          peak bytes 5-mins avg bps   peak bps  [cos-map]
    -----------------------------------------------------------------------------------------------------
    1    1                   0                   0                   0            0            0   [0 1 2 3 4 ]
    1    2                   0                   0                   0            0            0   [5 6 7 ]

[rnbhatija]

thanks Mark for the input.

i read up on "auto qos voip trust" , cisco says its used for traffic already marked with QoS?

following the guide below

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/auto_qos.html

[Mark Malone]

actually it trusts the marking coming inbound from yoiur source marker which will be the phone , its just on 6500s on different types of mods they have different sets of queues so it also forms them based on what the hardware allows

Like my output

1p3q8t]:    1 priority queue which is 4 above in oputput and only cos 5 assigned to it which is what the phone will mark the packet cos 5 dscp ef 46 tos 184

[rnbhatija]

mark, i understand

but was wondering would i need

"mls qos map cos-dscp" and/or  both "mls qos map dscp-cos" on global

[Mark Malone]

Only if your SUP supports MLS and it does not create the mls-cos mapping automatically

also if you enable mls globally it will put the mapping in place usually  anyway on sup720

[sajid_m123]

Bhatija,

how did your config go?

do you have .1q uplinks or L3 between access and Core?

trusted cos or dscp on uplinks?

Thanks.