Qos Policy Inconsistency On An Interface: Example - Cisco ASR 9000 Series Service Configuration Manual

Configuration Examples for Configuring ANCP on Cisco ASR 9000 Series Routers
QueueID: 11 (Priority Normal)
Queue Limit: 8 kbytes Profile: 1 Scale Profile: 0
WFQ Profile: 5 Committed Weight: 1 Excess Weight: 1
Bandwidth: 0 kbps, BW sum for Level 1: 1920 kbps, Excess Ratio: 1
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QoS Policy Inconsistency on an Interface: Example

A valid QoS policy with absolute or percentage values must satisfy the following requirement:
A Qos policy successfully applied to an interface can become invalid due to two possible external
factors. These two factors are an ANCP rate change or a port speed change:
•
•
When either of these changes occur, the QoS policy on the interface is placed in the inconsistency state.
To recover from the inconsistency state, perform one of the following tasks:
•
•
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Following are examples of the effects of an ANCP rate change and a port speed change have on the
following QoS policy configuration on a Gigabit Ethernet interface:
policy-map child-3play
class 3play-voip
priority level 1
police rate 65 kbps
!
!
class 3play-video
priority level 2
police rate 128 kbps
!
random-detect cos 3 10 ms 100 ms
random-detect cos 4 20 ms 200 ms
!
class 3play-premium
bandwidth percent 100
!
Class class-default
!
end-policy-map
!
policy-map parent-3play-subscriber-line
class class-default
service-policy child-3play
bandwidth 200 mbps
bandwidth remaining percent 100
shape average 800 mbps
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
QC-114
interface speed > ANCP rate > QoS parent shaper rate
ANCP Rate Change—If the ANCP rate falls, or the ANCP rate adjustment factor makes the ANCP
rate fall below the shaper rate of the top-most QoS policy map, the QoS policy on the interface
becomes invalid.
Port Speed Change—The port of a GigabitEthernet interface can be configured to 10 Mbps or
100 Mbps mode from the default of 1000 Mbps. When this happens, the interface speed drops to less
than the ANCP rate and QoS parent shaper rate. The QoS policy on the interface becomes invalid.
Remove the QoS policy from the interface, adjust the QoS policy values, then reapply the QoS
policy to the interface.
If the ANCP adjustment rate or the ANCP rate has been modified, update the ANCP rate to satisfy
the QoS policy rate requirement.
If port speed has been modified, update the speed to satisfy the QoS policy rate requirement.
Configuring Access Node Control Protocol on Cisco ASR 9000 Series Routers
OL-23108-02