Mls qos VS mls qos trust

Hello world!
I want to enable qos on a 3560 switch,
So, I put:
Overall setup mode "mls qos"
Question:
is what it is Verily nessaiire to interface configuration mode: "mls qos trust"?
Regards,

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Posting
Generally, on many Catalyst switches, once you enable QoS, they will erase an ingress CoS/ToS markings unless your trust it or otherwise (i.e. policy) maintain it.
I.e. the answer to your question is an "it depends"; but unless you want the markings reset to zero, the answer is probably yes (you want to trust).

Similar Messages

  • Cisco 3650 QoS design: "mls QoS" not supported

    Dear colleagues,
    I am currently testing a Cisco 3650 for various catalogue items. One key feature that we use on almost all our catalogue items, is Quality of Service (QoS).
    On the old Cisco 3560 and 3750, we use "mls qos" and related commands. We use numbered ACLs for  untrusted QoS policy that sits on the LAN / ingress port. I have raised a TAC case for this issue but is there a tool to help me convert the "mls QoS" design on the old 3560 platform to the new 3650 platform where "mls qos" is not supported?
    Many thanks.

    Hi,
    The new 3650 runs IOS-XE and the older Cisco 3560 and 3750 run IOS.  So the QOS architecture on the new 3650 is different.
    here is the link to the qos config for the 3650:
    http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/3se/qos/configuration_guide/b_qos_3se_3650_cg/b_qos_3se_3650_cg_chapter_011.html
    HTH

  • QoS: make switch to trust PC's DSCP marking

    Hi,
    As you all know, it's possible to override 802.1p/CoS field coming from PC attached to Catalyst switch.
    This is accomplished in 2 (two) ways:
    - either by '(config-if)# mls qos trust extend cos <value>'
    - or via '(config-if)# switchport priority extend cos <value>'
    But what about to make Cisco IP Phone to trust PC's DSCP marking ? Is this possible ?
    P.S.
    Can you also explain, why there 2 (two) flavors of CLI to allow switch to trust to PC's 802.1p marking ?
    Thanks.

    Tobi,
    the PC basically send untagged frames to the switch, these will normally be send as CoS=0.
    the following link has some scenarios for you
    http://www.cisco.com/en/US/partner/products/hw/switches/ps5023/products_tech_note09186a0080883f9e.shtml#cg211
    I think you will find example 6 usefull

  • Mls qos enabled globally and disabled for only one interface

    Hello !
    My switch is Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX5, RELEASE SOFTWARE (fc1)
    I try to disabled mls qos only for one interface, but when i do it, mls qos is globally disabled. Is it possible to do it ? 
    XXX#show mls qos
    QoS is enabled
    QoS ip packet dscp rewrite is enabled
    XXX#conf t
    Enter configuration commands, one per line.  End with CNTL/Z.
    XXX(config)#interface gigabitEthernet 1/0/5
    XXX(config-if)#no mls qos
    XXX(config)#exit
    XXX#
    XXX#show mls qos
    QoS is disabled
    QoS ip packet dscp rewrite is enabled
    Thanks in advance for your help !!
    Denis

    Hi Denis,
    You cant disable the QOS on per interface on 2960 devices.
    By default, QoS is disabled. When we enable QoS all ports
    will be assigned to queue-set 1. We can configure up to two
    different queue-sets.
    Hence if you remove the qos out of the interface it would be disabled globally as well.
    HTH

  • Any one ever worked on 6500 series Cisco switches QOS or 6503 or 6524 QOS(Urgent help needed)

    Hi All,
    I am having issue specifally doing QOS configuration on 6503 or 6524 or 6509 switches. I am unable to match any EF(voice) traffic for eompls(vlan based) on 6503 cisco switch. If i use any other router as 2811 or 2821 my QOS configuration works perfect but if i put 6503 as PE2 it does not work.i am using vlan based eompls.
    Below is the scenario & configuration which i am having issue.
    CE1(2821 router)(dot1Q)--------->PE1(2821 router)------->P(6524 switch)-------->PE2(6503 switch)------->(dot1Q)(2821 switch)CE2.
    On CE1 i can match ip-precedence 5 traffic and mark that traffic to cos5 on outbound port.On PE1 i can match cos5 packet and mark with mpls exp top5 on inbound port, on outbound port i can match mpls exp 5. 
    On PE2(6503) i am unable to match that mpls exp5 packet on inbound port. none of the configuration worked on 6500 series switches with mls qos, ,mls qos trust dscp,mls qos trust cos etc. Although i can match cos5 traffic on CE2 on inbound interface.i can not match mpls exp 5 traffic on 6503 and all i can see traffic as default-class on 6503 switch. I tried many things and many configurations on 6503 but nothing worked.If i put 2821 router as PE2 instead of 6503 my qos configuration works. but why if i put 6503 my same qos configuration does not work? 
    ---match means=classification or classify
    Can anyone tell me how qos works on 6500 series switches or where i am having issue in my scenario.
    i am using this ios on 6503: s72033-advipservicesk9_wan-mz.122-33.SXI3.bin.
    below r my questions for 6503 qos:
    1.do i need to use some other map tables,am i  using correct map tables on 6503 as cos-dscp,dscp-cos,exp-dscp etc.
    2.any other configutaion of qos needed on 6503?
    3.i am unable to match anything on outbound port of 6503.
    4.on 6503 i am using sup720 and PFC3BXL.any specific configuration needed for PFC3bxl.
    5. 6503 not allowing me to match qos-group on inbound interface, not allowing me to set cos5 on outbound interface. not allowing me to set cos5 as an inbound interface.
    CE1(2821) config:
    class-map match-any EF
     match ip precedence 5
    class-map match-any data
     match ip precedence 3
    policy-map ip2mpls
     class EF
      set cos 5
     class data
      set cos 3
    interface FastEthernet0/0
     no ip address
     duplex auto
     speed auto
    interface FastEthernet0/0.455
     encapsulation dot1Q 455
     ip address 172.16.15.1 255.255.255.252
     service-policy output EF
    PE1(2821) config:
    mls qos map cos-dscp 0 8 16 24 32 40 48 56
    class-map match-all exp_3
     match mpls experimental topmost 3
    class-map match-all mpls_exp
     match mpls experimental topmost 5
    class-map match-any cos3
     match cos  3
    class-map match-any LOO1
     match cos  5
    policy-map EF
     class LOO1
      set mpls experimental imposition 5
     class cos3
      set mpls experimental imposition 3
    policy-map QOS_G_5
     class mpls_exp
      priority
     class exp_3
      bandwidth 500
    interface Loopback0
     ip address 3.3.3.3 255.255.255.255
    interface FastEthernet0/0
     ip address 192.168.23.2 255.255.255.0
     ip ospf network point-to-point
     duplex auto
     speed auto
     mpls ip
     service-policy output QOS_G_5
    interface FastEthernet0/1.455
     encapsulation dot1Q 455
     xconnect 5.5.5.5 455 encapsulation mpls
     service-policy input EF
    PE2(6503 qos):
    R1#show module
    Mod Ports Card Type                              Model              Serial No.
      1    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE      SAL09401U2L
      2   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX     SAL114247YN
      3   16  16 port 1000mb GBIC ethernet           WS-X6416-GBIC      SAL0712AM69
      4   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP       SAL10019J4N
      5    2  Supervisor Engine 720 (Hot)            WS-SUP720-3BXL     SAD102805VM
      6    2  Supervisor Engine 720 (Active)         WS-SUP720-BASE     SAD0846060F
    Mod  Sub-Module                  Model              Serial       Hw     Status
      1  Distributed Forwarding Card WS-F6700-DFC3BXL   SAD102504EF  5.3    Ok
      2  Centralized Forwarding Card WS-F6700-CFC       SAD111300PD  3.1    Ok
      4  Centralized Forwarding Card WS-F6700-CFC       SAL1004BQ2A  2.0    Ok
      5  Policy Feature Card 3       WS-F6K-PFC3BXL     SAD10270189  1.8    Ok
      5  MSFC3 Daughterboard         WS-SUP720          SAD102801G5  2.5    Ok
      6  Policy Feature Card 3       WS-F6K-PFC3BXL     SAL1415FE95  1.11   Ok
      6  MSFC3 Daughterboard         WS-SUP720          SAD08440794  2.4    Ok
    R1#show mls qos maps
       Normal Burst Policed-dscp map:                                  (dscp= d1d2)
         d1 :  d2 0  1  2  3  4  5  6  7  8  9
          0 :    01 01 02 03 04 05 06 07 08 09
          1 :    10 11 12 13 14 15 16 17 18 19
          2 :    20 21 22 23 24 25 26 27 28 29
          3 :    30 31 32 33 34 35 36 37 38 39
          4 :    40 41 42 43 44 45 01 47 48 49
          5 :    50 51 52 53 54 55 56 57 58 59
          6 :    60 61 62 63
       Maximum Burst Policed-dscp map:                                  (dscp= d1d2)
         d1 :  d2 0  1  2  3  4  5  6  7  8  9
          0 :    00 01 02 03 04 05 06 07 08 09
          1 :    10 11 12 13 14 15 16 17 18 19
          2 :    20 21 22 23 24 25 26 27 28 29
          3 :    30 31 32 33 34 35 36 37 38 39
          4 :    40 41 42 43 44 45 46 47 48 49
          5 :    50 51 52 53 54 55 56 57 58 59
          6 :    60 61 62 63
       Dscp-cos map:                                  (dscp= d1d2)
         d1 :  d2 0  1  2  3  4  5  6  7  8  9
          0 :    00 00 00 00 00 00 00 00 01 01
          1 :    01 01 01 01 01 01 02 02 02 02
          2 :    02 02 02 02 03 03 03 03 03 03
          3 :    03 03 04 04 04 04 04 04 04 04
          4 :    05 05 05 05 05 05 05 05 06 06
          5 :    06 06 06 06 06 06 07 07 07 07
          6 :    07 07 07 07
       Dscp-exp map:                                  (dscp= d1d2)
         d1 :  d2 0  1  2  3  4  5  6  7  8  9
          0 :    00 00 00 00 00 00 00 00 01 01
          1 :    01 01 01 01 01 01 02 02 02 02
          2 :    02 02 02 02 03 03 03 03 03 03
          3 :    03 03 04 04 04 04 04 04 04 04
          4 :    05 05 05 05 05 05 05 05 06 06
          5 :    06 06 06 06 06 06 07 07 07 07
          6 :    07 07 07 07
    Cos-dscp map:
             cos:   0  1  2  3  4  5  6  7
            dscp:   0 10 18 24 34 46 48 56
       IpPrecedence-dscp map:
          ipprec:   0  1  2  3  4  5  6  7
            dscp:   0  8 16 24 32 40 48 56
       Exp-dscp map:
             exp:   0  1  2  3  4  5  6  7
            dscp:   0  8 16 24 32 40 48 56
    mls netflow interface
    mls qos map cos-dscp 0 10 18 24 34 46 48 56
    mls qos
    class-map match-all exp_3
     match mpls experimental topmost 3
    class-map match-all EXP_5
     match mpls experimental topmost 5
    class-map match-all QOS_GROUP_5
     match qos-group 5
    class-map match-all prec5
     match ip precedence 5
    class-map match-all cos5
     match cos  5
    policy-map mpls2ip
    class QOS_GROUP_5
     set cos 5
    policy-map IN_FROM_R3
     class EXP_5
      set qos-group 5
    interface Loopback0
     ip address 5.5.5.5 255.255.255.255
    interface GigabitEthernet2/2
     mls qos trust cos 
    or <------------ (tried both individually but none worked)
     mls qos trust dscp
    interface GigabitEthernet2/2.455
     encapsulation dot1Q 455
     xconnect 3.3.3.3 455 encapsulation mpls
     service-policy output mpls2ip
    interface GigabitEthernet2/1
     ip address 192.168.34.4 255.255.255.0
     ip ospf network point-to-point
     mls qos trust cos 
    or <------------ (tried both individually but none worked)
     mls qos trust dscp
     mpls ip
     service-policy input IN_FROM_R4
    Thanks & regards,
    Ahsan Rasheed

    Hi All,.
    I am still having issue on 6503 or 6524 Cisco Switch. 
    " Can any one give me any sample of 6524 or 6503 QOS working configuration, i would be really thankful "
    As i have mentioned in my prevoius post of configuration of 6503. I am unable to match mpls exp 5 packet on 6503. My qos configuration on PE1(2811 router) is working perfectly. I am unable to classify mpls ex5 or mpls exp3 on 6503 switch. Am i missing something on configuration?
    PE2 config:"6503 switch"
    class-map match-all mpls_exp
     match mpls experimental topmost 5
    policy-map EF
    class mpls_exp
    R!#mls qos
    int Gi2/4
    service-policy input EF
    mls qos trust cos
        dscp:   0 10 18 24 34 46 48 56
       Exp-dscp map:
             exp:   0  1  2  3  4  5  6  7
            dscp:   0 10 18 24 34 46 48 56
    Thanks,
    Ahsan Rasheed

  • QOS Implementation

    Hi
    I have this existing QOS configuration in my network.
    below is the configuration which i gather from access switch and from Core switch.
    Core Switch
    =========
    mls aging long 64
    mls aging normal 32
    mls netflow interface
    mls flow ip interface-full
    mls nde sender version 5
    mls qos map cos-dscp 0 8 16 24 32 46 48 56
    mls qos
    mls cef error action reset
    interface GigabitEthernet X/X/X                                                                                                             
    description To Closet Switch or Access Switch                                                                                                 
     switchport                                                                                                        
    switchport trunk encapsulation dot1q                                                                                                                                                                                                  
    switchport mode trunk                                                                                                               
    wrr-queue bandwidth 5 25 40                                                                                                  
     wrr-queue queue-limit 20 25 40                                                                                                              
     wrr-queue random-detect min-threshold 1 80 100 100 100 100 100 100 100                                                                                                         
     wrr-queue random-detect min-threshold 2 80 100 100 100 100 100 100 100                                                                                                         
     wrr-queue random-detect min-threshold 3 60 70 80 90 100 100 100 100                                                                                                                
     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 80 90 100 100 100 100 100                                                                                                             
     wrr-queue cos-map 1 1 1                                                                                                            
     wrr-queue cos-map 2 1 0                                                                                                            
     wrr-queue cos-map 3 1 2                                                                                                            
     wrr-queue cos-map 3 2 3                                                                                                            
     wrr-queue cos-map 3 3 6                                                                                                            
     wrr-queue cos-map 3 4 7                                                                                                            
     priority-queue cos-map 1 4 5                                                                                                    
     mls qos trust dscp                                                                                                         
    channel-group XX mode active                                                                                                
    end                                                                                                       
    interface Port-channel XX                                                                                                          
    description To  Closet Switch or Access Switch                                                                                                
    switchport                                                                                                        
    switchport trunk encapsulation dot1q                                                                                                                                                                                                                  
    switchport mode trunk                                                                                                               
    mls qos trust dscp                                                                                                         
    end                                       
    Access Switch
    ===========                                                  
    mls qos map cos-dscp 0 8 16 26 32 46 48 56                                                                                                          
    mls qos srr-queue input threshold 1 50 100                                                                                                         
    mls qos srr-queue input threshold 2 80 100                                                                                                         
    mls qos srr-queue input priority-queue 2 bandwidth 20                                                                                                
    mls qos srr-queue input dscp-map queue 1 threshold 2 24                                                                                                          
    mls qos srr-queue input dscp-map queue 1 threshold 3 48 56                                                                                                     
    mls qos srr-queue input dscp-map queue 2 threshold 3 32 40 46                                                                                                               
    mls qos srr-queue output cos-map queue 1 threshold 3 4 5                                                                                                         
    mls qos srr-queue output cos-map queue 2 threshold 1 2                                                                                                            
    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 40 46                                                                                                 
    mls qos srr-queue output dscp-map queue 2 threshold 1 16 18 20 22 26 28 30 32                                                                                                             
    mls qos srr-queue output dscp-map queue 2 threshold 1 34 36 38                                                                                                            
    mls qos srr-queue output dscp-map queue 2 threshold 2 24                                                                                                       
    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 2 10 12 14                                                                                                            
    mls qos queue-set output 1 threshold 1 100 100 100 100                                                                                                               
    mls qos queue-set output 1 threshold 2 80 90 100 400                                                                                                    
    mls qos queue-set output 1 threshold 3 100 100 100 400                                                                                                               
    mls qos queue-set output 1 threshold 4 60 100 100 400                                                                                                 
    mls qos queue-set output 1 buffers 15 30 35 20                                                                                                
    mls qos                                                                                                
    interface GigabitEthernet XXX
    description Access Points
    switchport access vlan XXX
    switchport mode access
    switchport voice vlan YYY
    srr-queue bandwidth share 1 70 25 5
    srr-queue bandwidth shape 3 0 0 0
    priority-queue out
     mls qos trust cos
    spanning-tree portfast
    spanning-tree bpduguard enable
    end
    interface GigabitEthernet X/X/X                                                              
    description To Core Switch                                                        
    switchport trunk encapsulation dot1q                                                                                                  
    switchport mode trunk                                                               
    carrier-delay msec 0                                                     
    srr-queue bandwidth share 1 70 25 5                                                    
    srr-queue bandwidth shape 3 0 0 0                                                        
    priority-queue out                                                        
     mls qos trust cos                                                            
    channel-group XX mode active                                                               
    interface Port-channel XX
    description Uplink to Core
    switchport trunk encapsulation dot1q
    switchport mode trunk
    dampening
    end
    i need to understand the above commands.
    Regards

    On the core switch , you are trusting the dscp (Diffserv Code Point - a Layer 3 field used to indicate the classification of traffic for purposes of sorting it into classes and applying policies) marking that is on any packets coming from your closet and access switches.
    On the access switches you are trusting any cos (Class of Service) marking applied by the connected core switch and access points.
    In either case, trusting the marking means the end devices are responsible for setting the bits correctly to ensure their traffic is put into the right category.

  • Feq questions about QOS

    I have few questions about QOS
    1) Can qos policy only be applied at incoming frame/packets or it can also be applied at outgoing frames?
    2)Is it correct that qos policy for incoming frames , will decide the queue the frames be at placed ingress port?
    3) Is it correct that qos policy for outgoing frames,decides the queue the frames be placed at egress port?
    4) Is it possible to trust the Cos/dscp in frame/packet and have qos policy for outgoing frames ?
    5) Scenario:
    When f0/1 is in trunk mode:
    sw1(config)# int f0/1
    sw1(cofig-if)mls qos trust dscp
    when switch receives the frame,will it drive the cos value from dscp-cos map and place the frame in appropiate queue?
    When f0/1 is not access mode:
    When a switch receives the frame , Would switch drive the cos value from DScp-cos map even though the port is in access mode and place the frame in appropiate queue at ingress port?
    thanks a lot!

    Check out the SRND for QoS, it will answer of the questions you've posted here.
    http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS-SRND-Book.html
    Hope that helps.

  • 3750X rate-limit (QoS)

    Hello,
    I'm trying to configure a rate-limit in a 3750X but I'm not seeing any result... 
    These are my configurations:
    RF#show run 
    Building configuration...
    Current configuration : 23410 bytes
    ! Last configuration change at 08:53:35 UTC Sun Mar 14 1993
    version 15.0
    no service pad
    service timestamps debug datetime msec
    service timestamps log datetime msec
    no service password-encryption
    hostname RF
    boot-start-marker
    boot-end-marker
    no aaa new-model
    switch 1 provision ws-c3750x-48p
    system mtu routing 1500
    ip routing
    ip domain-name erf.carco.com.mx
    rep admin vlan 100
    mls qos
    spanning-tree mode pvst
    spanning-tree extend system-id
    vlan internal allocation policy ascending
    vlan 2
    vlan 4 
    vlan 6
    vlan 8
    vlan 10
    vlan 20
    vlan 21   
    vlan 22
    vlan 23
    vlan 25 
    vlan 26
    vlan 30
    vlan 50
    vlan 53
    vlan 70
    vlan 81
    vlan 91
    vlan 92
    vlan 93
    vlan 95
    vlan 96
    vlan 99
    vlan 100
    vlan 102
    vlan 110
    vlan 122
    vlan 129
    vlan 200
    vlan 213
    vlan 227
    vlan 333
    vlan 357
    vlan 417
    vlan 444
    vlan 500
    vlan 502
    vlan 555
    vlan 700
    vlan 712
    vlan 910
    vlan 911
    vlan 951
    vlan 1105
    vlan 1508
    vlan 1830
    vlan 1870
    vlan 1890
    vlan 1891
    vlan 1892
    class-map match-any test
      match access-group 100
    policy-map test
     class test
      police 150000000 512000 exceed-action drop
    interface Loopback0
     ip address 10.20.40.106 255.255.255.0
    interface Port-channel22
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport mode trunk
     bandwidth 10000000
     rep segment 10
    interface Port-channel24
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport mode trunk
     bandwidth 10000000
     rep segment 10
    interface FastEthernet0
     no ip address
     no ip route-cache
     shutdown
    interface GigabitEthernet1/0/1
    interface GigabitEthernet1/0/2
    interface GigabitEthernet1/0/3
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,10,50,53,60,70,91-93,95,96,99,100,110,213,227
     switchport trunk allowed vlan add 500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     no logging event link-status
     shutdown
     speed 1000
     duplex full
    interface GigabitEthernet1/0/4
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,8,10,20,50,53,70,91-93,95,96,99,100,110,213
     switchport trunk allowed vlan add 227,500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     shutdown
     speed 1000
     duplex full
    interface GigabitEthernet1/0/5
    interface GigabitEthernet1/0/6
    interface GigabitEthernet1/0/7
    interface GigabitEthernet1/0/8
    interface GigabitEthernet1/0/9
    interface GigabitEthernet1/0/10
     switchport access vlan 91
     switchport mode access
     logging event link-status
    interface GigabitEthernet1/0/11
    interface GigabitEthernet1/0/12
    interface GigabitEthernet1/0/13
    interface GigabitEthernet1/0/14
    interface GigabitEthernet1/0/15
     switchport access vlan 91
     switchport mode access
     logging event link-status
    interface GigabitEthernet1/0/16
    interface GigabitEthernet1/0/17
    interface GigabitEthernet1/0/18
    interface GigabitEthernet1/0/19
    interface GigabitEthernet1/0/20
     switchport access vlan 91
     switchport mode access
     logging event link-status
    interface GigabitEthernet1/0/21
    interface GigabitEthernet1/0/22
    interface GigabitEthernet1/0/23
    interface GigabitEthernet1/0/24
    interface GigabitEthernet1/0/25
     switchport access vlan 910
     switchport mode access
    interface GigabitEthernet1/0/26
    interface GigabitEthernet1/0/27
    interface GigabitEthernet1/0/28
    interface GigabitEthernet1/0/29
    interface GigabitEthernet1/0/30
    interface GigabitEthernet1/0/31
    interface GigabitEthernet1/0/32
    interface GigabitEthernet1/0/33
    interface GigabitEthernet1/0/34
    interface GigabitEthernet1/0/35
    interface GigabitEthernet1/0/36
    interface GigabitEthernet1/0/37
     no switchport
     bandwidth 150000
     ip address 10.20.103.13 255.255.255.252
     rate-limit output access-group 100 24000000 3000000 3000000 conform-action transmit exceed-action drop
     logging event link-status
    interface GigabitEthernet1/0/38
    interface GigabitEthernet1/0/39
    interface GigabitEthernet1/0/40
    interface GigabitEthernet1/0/41
    interface GigabitEthernet1/0/42
    interface GigabitEthernet1/0/43
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport mode trunk
     bandwidth 10000000
     channel-group 24 mode on
    interface GigabitEthernet1/0/44
    interface GigabitEthernet1/0/45
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,10,50,53,60,70,91-93,95,96,99,100,110,213,227
     switchport trunk allowed vlan add 500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     shutdown
    interface GigabitEthernet1/0/46
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,10,50,53,60,70,91-93,95,96,99,100,110,213,227
     switchport trunk allowed vlan add 500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     shutdown
    interface GigabitEthernet1/0/47
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport mode trunk
     bandwidth 10000000
     channel-group 22 mode on
    interface GigabitEthernet1/0/48
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 6
     switchport trunk allowed vlan 2,7,10,20,50,53,70,91-93,95,96,99,100,110,213
     switchport trunk allowed vlan add 227,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     logging event link-status
     shutdown
    interface GigabitEthernet1/1/1
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,8,10,20,50,53,60,70,91-93,95,96,99,110,213,227
     switchport trunk allowed vlan add 500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     shutdown
    interface GigabitEthernet1/1/2
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 100
     switchport trunk allowed vlan 2,8,10,20,50,53,60,70,91-93,95,96,99,110,213,227
     switchport trunk allowed vlan add 500,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     shutdown
    interface GigabitEthernet1/1/3
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 6
     switchport trunk allowed vlan 2,6,8,10,20,50,53,70,91-93,95,96,99,100,110,213
     switchport trunk allowed vlan add 227,700,910,911,951,1830,1870,1890-1892
     logging event link-status
     shutdown
    interface GigabitEthernet1/1/4
     switchport trunk encapsulation dot1q
     switchport trunk native vlan 6
     switchport trunk allowed vlan 2,6,8,10,20,50,53,70,91-93,95,96,99,100,110,213
     switchport trunk allowed vlan add 227,700,910,911,951,1830,1870,1890-1892
     switchport mode trunk
     logging event link-status
     shutdown
    interface TenGigabitEthernet1/1/1
    interface TenGigabitEthernet1/1/2
    interface Vlan1
     no ip address
     shutdown
    interface Vlan6
     description ***LANERF**
     ip address 10.20.6.106 255.255.255.0
     no ip redirects
    interface Vlan23
     description < TRANSITO MUR >
     no ip address
     no ip redirects
    interface Vlan100
     description < VLAN MAN >
     ip address 10.20.100.106 255.255.255.0
     no ip redirects
     ip ospf authentication message-digest
     ip ospf message-digest-key 1 md5 7 032368342B2F0F
     ip ospf dead-interval minimal hello-multiplier 4
    router ospf 1
     router-id 10.20.40.106
     auto-cost reference-bandwidth 100000
     area 0.0.0.0 authentication message-digest
     area 1.80.1.1 authentication message-digest
     redistribute connected subnets
     redistribute static subnets
     passive-interface default
     no passive-interface Vlan23
     no passive-interface Vlan100
     no passive-interface GigabitEthernet1/0/37
     network 10.20.6.0 0.0.0.0 area 0.0.0.0
     network 10.20.40.106 0.0.0.0 area 0.0.0.0
     network 10.20.91.6 0.0.0.0 area 0.0.0.0
     network 10.20.100.106 0.0.0.0 area 0.0.0.0
     default-information originate
    ip http server
    ip http secure-server
    access-list 100 permit ip 10.50.80.0 0.0.0.255 10.80.80.0 0.0.0.255
    access-list 100 permit ip 10.80.80.0 0.0.0.255 10.50.80.0 0.0.0.255
    snmp-server community ASComRO RO
    line con 0
    line vty 0 4
     login
    line vty 5 15
     login
    event manager applet track_qos_down authorization bypass
     event syslog pattern "TRACKING-5-STATE: 15 ip sla 15 reachability Up->Down"
     action 1 cli command "enable"
     action 2 cli command "configure terminal"
     action 3 cli command "interface giga1/0/37"
     action 4 cli command "rate-limit output access-group 100 400000000 50000000 50000000 conform-action transmit exceed-action drop"
     action 5 cli command "end"
    event manager applet track_qos_up authorization bypass
     event syslog pattern "TRACKING-5-STATE: 15 ip sla 15 reachability Down->Up"
     action 1 cli command "enable"
     action 2 cli command "configure terminal"
     action 3 cli command "interface giga1/0/37"
     action 4 cli command "no rate-limit output access-group 100 400000000 50000000 50000000 conform-action transmit exceed-action drop"
     action 5 cli command "end"
    end
    ERF#     
    ERF#show mls qos 
    QoS is enabled 
    QoS ip packet dscp rewrite is enabled 
    ERF#show mls qos inter gigabitEthernet 1/0/37 
    GigabitEthernet1/0/37 
    trust state: not trusted 
    trust mode: not trusted 
    trust enabled flag: ena 
    COS override: dis 
    default COS: 0 
    DSCP Mutation Map: Default DSCP Mutation Map 
    Trust device: none 
    qos mode: port-based 
    When I apply the command I'm seeing a gauge using a 3rd party but I'm not seeing that the traffic will be truncated @ 50Mbps.
    Any thoughts??? 

    Hi
    Bandwidth commands allocates the particular amount of bandwidth you mention or configure over there.
    Basically you have the liberty to configure upto 75% of the available interface bandwidth to different classes.
    most widelys used with CBWFQ technique..
    so while configuring up the same better to watch out for the exact bandwidth value keyed in on the interface to have your alloocation work properly.
    policing basically used for limiting the traffic or to control the bursts by dropping them or marking them with different ip precedence or DSCP values.
    its very much similar to the rate-limit command applied on the interface level which again uses token bucket system either single or dual based on the configuration parameters.
    for more info on above mentioned clis do check these links..
    http://www.cisco.com/en/US/tech/tk543/tk545/tsd_technology_support_protocol_home.html
    http://www.cisco.com/en/US/tech/tk543/tk544/tsd_technology_support_protocol_home.html
    regds

  • Nexus QoS Defaults on F cards

    I fond the below chart and I want to make sure I understand it correctly. Accoding to that chart my nexus 7k with F cards trust Cos by default and not DSCP. Is that correct? 
    our Access switches have mls qos trust dscp and our voip devices are making traffic as dscp.
    Thanks
    6500
    N7K
    ENABLE QOS      
    mls qos
    Enabled by default
    TRUST
    mls qos trust [cos|dscp|ip-precedence]
    DSCP (on M1 modules) and CoS (on F1 modules) trusted by default
    INTERNAL QOS
    QoS Label is used internally
    CoS and/or DSCP passed through, though QoS-Groups can be used
    COS TO DSCP MAPPING
    Default of CoS to 3 most significant bits of DSCP (CoS 1 to DSCP 8 )
    Same
    DSCP to COS MAPPING
    Default 3 most significant bits of DSCP to CoS (DSCP 10 to CoS 1)
    Same
    CHANGE COS/DSCP MAPPING
    Modify cos-dscp or dscp-cos maps
    Create and apply qos policy-map(s) ingress and/or egress

    I fond the below chart and I want to make sure I understand it correctly. Accoding to that chart my nexus 7k with F cards trust Cos by default and not DSCP. Is that correct? 
    our Access switches have mls qos trust dscp and our voip devices are making traffic as dscp.
    Thanks
    6500
    N7K
    ENABLE QOS      
    mls qos
    Enabled by default
    TRUST
    mls qos trust [cos|dscp|ip-precedence]
    DSCP (on M1 modules) and CoS (on F1 modules) trusted by default
    INTERNAL QOS
    QoS Label is used internally
    CoS and/or DSCP passed through, though QoS-Groups can be used
    COS TO DSCP MAPPING
    Default of CoS to 3 most significant bits of DSCP (CoS 1 to DSCP 8 )
    Same
    DSCP to COS MAPPING
    Default 3 most significant bits of DSCP to CoS (DSCP 10 to CoS 1)
    Same
    CHANGE COS/DSCP MAPPING
    Modify cos-dscp or dscp-cos maps
    Create and apply qos policy-map(s) ingress and/or egress

  • QoS in C6500 Sup2T

    Hi Everyone,
    I've got a C6504 Chassis with Sup2T with default qos configuration (auto qos default gobal command). When I use the "show platform qos ip" command I can see the following output:
    QoS Summary [IPv4]: (* - shared aggregates, Mod - switch module, Sid - Switch Id, E - service instance)
                         (^ - class-copp keyword)
              Int  Sid Mod Dir  Class-map DSCP  Agg  Trust Fl      AgForward      AgPoliced
                                                Id         Id                            
               CPP   1  1  In ^mcast-v4-    0    1     No  0              0              0
               CPP   1  1  In ^match-igm   48    2     No  0              0              0
               All   1  1   -    Default    0    0*    No  0 11780258945376              0
               All   1  4   -    Default    0    0*    No  0 28254137334635              0
    1. ¿Why I can only see traffic with DSCP=0 if I know there are traffic with different DSCP markings passing through my C6504?
    The interfaces are properly configured to trust cos markings and queue traffic
    MLS#show queueing interface gi1/1/1
    Interface GigabitEthernet1/1/1 queueing strategy:  Weighted Round-Robin
    Port QoS is enabled globally
      Queueing on Gi1/1/1: Tx Enabled Rx Enabled
    MLS#interface GigabitEthernet1/1/1
    switchport
    platform qos trust cos
    2. Does the Sup2T with default qos configuration rewrite to 0 all DSCP markings by default?
    Thank you in advance.

    What is the IOS version you are running & what is the line card in your chassis module  1 ?, the commands output seems different what I am seeing in one of my Sup2T.
    CR01#sh ver | in Soft
    Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.1(2)SY, RELEASE SOFTWARE (fc4)
    CR01#show platform qos ip
       QoS is in queueing-only mode
    CR01#show queueing interface g6/1
    Interface GigabitEthernet6/1 queueing strategy:  Weighted Round-Robin
      Port QoS is enabled globally
      Queueing on Gi6/1: Tx Enabled Rx Enabled
    Trust boundary disabled
      Trust state: trust DSCP
      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 = 1p3q4t]:
        Queue Id    Scheduling  Num of thresholds
           01         WRR                 04
           02         WRR                 04
           03         WRR                 04
           04         Priority            01
        WRR bandwidth ratios:  100[queue 1] 150[queue 2] 200[queue 3]
        queue-limit ratios:     50[queue 1]  20[queue 2]  15[queue 3]  15[Pri Queue]
        queue tail-drop-thresholds
        1     70[1] 100[2] 100[3] 100[4]
        2     70[1] 100[2] 100[3] 100[4]
        3     100[1] 100[2] 100[3] 100[4]
        queue random-detect-min-thresholds
          1    40[1] 70[2] 70[3] 70[4]
          2    40[1] 70[2] 70[3] 70[4]
          3    70[1] 70[2] 70[3] 70[4]
        queue random-detect-max-thresholds
          1    70[1] 100[2] 100[3] 100[4]
          2    70[1] 100[2] 100[3] 100[4]
          3    100[1] 100[2] 100[3] 100[4]
        WRED disabled queues:   
        queue thresh cos-map
        1     1      0
    HTH
    Rasika
    **** Pls rate all useful responses ****

  • 3750 Disable QoS and fix the buffers?

    I have done a lot of research on the subject and found that the 3750 is best left without any QoS enabled. customer is complaining about a lot of dropped packets and this is affecting realtime traffic quite a bit.
    What i want to do is, compelelty disable QoS and also set the buffer sizes to the most optimal settings, -or- to the maximum settings if that is better. I also want the switch to leave any dscp/QoS markings it recieves intact on all ports, so do I need to still trust dscp on every interface or just disable qos rewrite?
    can anyone shed light on the commands to do so?
    sh ver: WS-C3750E-24PD-S
    current relevant config:
    mls qos
    Queueset: 1
    Queue     :       1       2       3       4
    buffers   :      25      25      25      25
    threshold1:     100     200     100     100
    threshold2:     100     200     100     100
    reserved  :      50      50      50      50
    maximum   :     400     400     400     400
    sh mls qos interface (all interfaces have the same values as this)
    GigabitEthernet1/0/1
    trust state: not trusted
    trust mode: not trusted
    trust enabled flag: ena
    COS override: dis
    default COS: 0
    DSCP Mutation Map: Default DSCP Mutation Map
    Trust device: none
    qos mode: port-based
    sh mls qos
    QoS is enabled
    QoS ip packet dscp rewrite is enabled

    Disclaimer
    The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
    Liability Disclaimer
    In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
    Posting
    The 3750 doesn't always operate best with QoS disabled but enabled QoS often requires customization of its QoS settings.
    If you disable QoS, by default, ToS/CoS markings will be passed through the 3750 as is.  Buffer configuration settings have no impact (as far as I know).
    If you enable QoS, then you may very much have a need to adjust buffers settings, but one size doesn't fit all.  Optimal buffer settings would depend on your intended QoS policy and your traffic.

  • CATOS QOS commands - what are they in IOS?

    I have the following commands in CATOS on a 6500 but I need to know what they should be in IOS 12.2(17d)SXB10?
    set qos enable
    set qos cos-dscp-map 0 8 16 24 32 46 50 56
    set qos map 2q2t tx 2 2 cos 5
    set qos acl ip TRUST-DSCP trust-dscp any
    commit qos acl TRUST-DSCP
    set qos acl map TRUST-DSCP 8/1-48
    Please can someone help???

    !!set qos enable
    Router(config)# mls qos
    !!set qos cos-dscp-map 0 8 16 24 32 46 50 56
    Router(config)# mls qos map cos-dscp
    !!set qos map 2q2t tx 2 2 cos 5
    Router(config)# interface gigabitethernet 1/1
    Router(config-if)# rcv-queue cos-map queue_# threshold_# cos1 [cos2 [cos3 [cos4 [cos5 [cos6 [cos7 [cos8]]]]]]]
    Router(config)# interface gigabitethernet 1/1
    Router(config-if)# wrr-queue cos-map 1 1 0 1
    !!set qos acl ip TRUST-DSCP trust-dscp any
    !!commit qos acl TRUST-DSCP
    !!set qos acl map TRUST-DSCP 8/1-48
    Router(config)# class-map class_name
    Router(config-cmap)# match access-group name acl_index_or_name
    Router(config)# policy-map policy_name
    Router(config-pmap)# class class_name
    Router(config-pmap-c)# trust dscp
    Router(config)# interface fastethernet 1/1
    Router(config-if)# service-policy [input | output] policy_map_name
    I believe this is right. If you need further clarification please ask or refer to…
    http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a00801679f8.html

  • 3850 Switch - QOS

    HI
    We've just purchased 3850 switch part of a wireless upgrade, but we are usign 8500 wlc.
    Want to use the 3580 just as a edge switch without the wlc as we didn't purchase the licences.
    Using our exsiting 3750x template haing issues with the QOS settings
    mls qos map cos-dscp 0 8 16 24 32 46 48 56
    mls qos srr-queue input cos-map queue 2 threshold 1 3
    mls qos srr-queue input dscp-map queue 2 threshold 1 24
    mls qos srr-queue output cos-map queue 1 threshold 3 5
    mls qos srr-queue output cos-map queue 2 threshold 1 2
    mls qos srr-queue output cos-map queue 2 threshold 3 3
    mls qos srr-queue output cos-map queue 3 threshold 1 1
    mls qos srr-queue output cos-map queue 3 threshold 3 0
    mls qos srr-queue output cos-map queue 4 threshold 3 6 7
    mls qos queue-set output 2 threshold 2 3200 3200 100 3200
    mls qos queue-set output 2 buffers 10 70 10 10
    mls qos
    any help would be apprieicated in pointing to right direction.
    Have been looking for last couple of days.
    cheers

    Hi
    this might help (as we moved from 3750 to 3850 switches, we had to rebuild qos).
    The basic idea is something like this
    Class-maps:
    class-map match-any CM_VOIP
    match dscp ef
    class-map match-any CM_SIGNALING
    match ip dscp cs3
    match ip dscp af31
    class-map match-any VC_VIDEO
    match dscp af41
    Policy map for the uplink:
    policy-map UPLINK-OUT
    class CM_VOIP
    priority level 1 percent 10 (this is the high priority queue)
    police cir percent 10 conform-action transmit exceed-action drop
    class CM_SIGNALING
    priority level 2 percent 5 (low priority queue)
    police cir percent 5 conform-action transmit exceed-action drop
    class VC_VIDEO
    bandwidth remaining percent 10
    class class-default
    bandwidth remaining percent 75
    Uplink config:
    Interface Gi1/1/1
    Service-policy output UPLINK-OUT
    This way you can build your qos policies. You can tune anyway you like / configure more traffic types and/or confighure policies for access ports

  • 3850 QoS question

    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.

    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 ****

  • Convert Qos commands from CATOS to IOS

    Hello,
    i've some problems converting some Qos commands from CATos to IOS can anybody help me?
    set qos drop-threshold 1q4t rx queue 1 50 60 80 100
    set qos map 2q2t tx 1 1 cos 0
    set qos map 1p1q4t rx 1 3 cos 4
    set qos wrr 1p2q2t 50 255
    set qos txq-ratio 1p2q2t 70 15 15
    set qos wred 1p2q2t tx queue 1 70:100 70:100
    set qos bridged-microflow-policing disable 1,50-54,100-121,500,700-702,1006-1011,1016
    set qos policed-dscp-map 1:1
    set qos policed-dscp-map excess-rate 0:0
    set qos acl default-action ip dscp 0
    set qos acl default-action ipx
    set qos acl default-action mac
    set qos policy-source local
    set qos rsvp disable
    set qos rsvp policy-timeout 30
    set qos rsvp local-policy forward
    !Module with GE interfaces
    set port qos 3/1-16 cos 0
    set port qos 3/1-16 trust trust-cos
    set port qos 3/1-16 port-based
    set port qos 3/1-16 policy-source local
    set qos statistics export port 3/1 disable
    set qos statistics export port 3/2 disable
    set qos statistics export port 3/3 disable
    set qos statistics export port 3/4 disable
    set qos statistics export port 3/5 disable
    set qos statistics export port 3/6 disable
    set qos statistics export port 3/7 disable
    set qos statistics export port 3/8 disable
    set qos statistics export port 3/9 disable
    set qos statistics export port 3/10 disable
    set qos statistics export port 3/11 disable
    set qos statistics export port 3/12 disable
    set qos statistics export port 3/13 disable
    set qos statistics export port 3/14 disable
    set qos statistics export port 3/15 disable
    set qos statistics export port 3/16 disable

    This URL should help you:
    http://www.cisco.com/warp/public/473/73.html

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