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AutoQoS Cisco Phone Service-policy - policed default class rate

chris.berry.1
Level 1
Level 1

Hi,

I'm wondering first if I am correct in reading this Cisco Validated Design configuration as limiting everything but ef/cs3 to 10 Mbps on the example interface. So effectively all traffic to/from say, a workstation plugged into this switch, or a workstation daisy chained to an IP phone, which is connected to this switch, is limited down to 10 Mbps on this 1 Gbps interface? My understanding is service-policy will be applied before trust.

If that is the case, I'm wondering the reason for such a low rate?

mls qos map policed-dscp  0 10 18 24 46 to 8

mls qos map cos-dscp 0 8 16 24 32 46 48 56

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 32 33 40 41 42 43 44 45

mls qos srr-queue output dscp-map queue 1 threshold 3 46 47

mls qos srr-queue output dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23

mls qos srr-queue output dscp-map queue 2 threshold 1 26 27 28 29 30 31 34 35

mls qos srr-queue output dscp-map queue 2 threshold 1 36 37 38 39

mls qos srr-queue output dscp-map queue 2 threshold 2 24

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 0 1 2 3 4 5 6 7

mls qos srr-queue output dscp-map queue 4 threshold 1 8 9 11 13 15

mls qos srr-queue output dscp-map queue 4 threshold 2 10 12 14

mls qos queue-set output 1 threshold 1 100 100 50 200

mls qos queue-set output 1 threshold 2 125 125 100 400

mls qos queue-set output 1 threshold 3 100 100 100 3200

mls qos queue-set output 1 threshold 4 60 150 50 200

mls qos queue-set output 1 buffers 15 25 40 20

mls qos

class-map match-all AUTOQOS_VOIP_DATA_CLASS

match ip dscp ef

class-map match-all AUTOQOS_DEFAULT_CLASS

match access-group name AUTOQOS-ACL-DEFAULT

class-map match-all AUTOQOS_VOIP_SIGNAL_CLASS

match ip dscp cs3

!

policy-map AUTOQOS-SRND4-CISCOPHONE-POLICY

class AUTOQOS_VOIP_DATA_CLASS

   set dscp ef

  police 128000 8000 exceed-action policed-dscp-transmit

class AUTOQOS_VOIP_SIGNAL_CLASS

  set dscp cs3

  police 32000 8000 exceed-action policed-dscp-transmit

  class AUTOQOS_DEFAULT_CLASS

   set dscp default

   police 10000000 8000 exceed-action policed-dscp-transmit

interface GigabitEthernet1/0/1
  switchport access vlan 164
  switchport mode access
  switchport voice vlan 165
  switchport port-security maximum 11
  switchport port-security
  switchport port-security aging time 2
  switchport port-security violation restrict
  switchport port-security aging type inactivity
  ip arp inspection limit rate 100
  srr-queue bandwidth share 1 30 35 5
  priority-queue out
  mls qos trust device cisco-phone
  mls qos trust cos
  macro description AccessEdgeQoS
  auto qos voip cisco-phone
  spanning-tree portfast
  service-policy input AUTOQOS-SRND4-CISCOPHONE-POLICY
  ip verify source
  ip dhco snooping limit rate 100
Many thanks.
-C
1 Reply 1

Joseph W. Doherty
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If that is the case, I'm wondering the reason for such a low rate?

The policy is assuming users don't normally have a need to sustain more than 10 Mbps, ingress.