Cisco 10000 Series Manual de usuario

Americas Headquarters

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

http://www.cisco.com

Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 527-0883

Cisco 10000 Series Router Quality of

Service Configuration Guide

February 25, 2013

Text Part Number: OL-7433-09

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL

STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT

WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT

SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE

OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH

ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT

LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF

DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING,

WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO

OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this

URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership

relationship between Cisco and any other company. (1110R)

Cisco 10000 Series Router Quality of Service Configuration Guide

iii

Cisco 10000 Series Router Quality of Service Configuration Guide

OL-7433-09

CONTENTS

About This Guide xxxv

Guide Revision History xxxv

Audience xl

Document Organization xl

Document Conventions xlii

Related Documentation xliii

Obtaining Documentation and Submitting a Service Request xliii

CHAPTER

1Quality of Service Overview 1-1

Benefits of Quality of Service Features 1-2

Restrictions and Limitations for Quality of Service 1-2

Modular QoS Command-Line Interface 1-2

Feature History for MQC 1-3

QoS CLI Migration from PRE2 to PRE3 1-3

Feature History for QoS CLI Migration from PRE2 to PRE3 1-4

QoS Management Information Base Support 1-4

QoS Implementation Guidelines 1-4

QoS Execution on the Router 1-4

QoS Configuration on an Interface 1-5

QoS Models 1-6

Overview of QoS Models 1-6

Model D.2 Definition 1-7

Model F Definition 1-7

Configuration Tasks 1-8

Configuration Steps on Subinterfaces for QoS Model D.2 1-8

Configuration Steps on Sessions for QoS Model D.2 1-8

Configuration Steps for QoS Model F 1-9

Configuration Examples 1-9

QoS Features, Commands, and Changes 1-11

Applying QoS Parameters Dynamically to Sessions 1-12

Applying Traffic Shaping Parameters Using RADIUS Profiles 1-12

dbs enable Command 1-12

default dbs enable Command 1-12

Contents

Cisco 10000 Series Router Quality of Service Configuration Guide

OL-7433-09

Dynamic Bandwidth Selection Feature 1-13

Attaching QoS Service Policies 1-13

service-policy Command 1-13

Attaching ATM QoS Service Policies 1-14

Attaching Frame Relay QoS Service Policies 1-14

Attaching LAC QoS Service Policies 1-15

Attaching Virtual LAN QoS Service Policies 1-15

Attaching Virtual Access Interface QoS Service Policies 1-15

Classifying Traffic 1-15

class-map Command 1-15

match Commands 1-16

Class Map Feature 1-18

Configuring QoS for MPLS Traffic 1-18

MPLS CoS Multi-VC Mode 1-18

MPLS QoS Feature 1-19

MPLS Traffic Engineering—DiffServ Aware Feature 1-19

Control Plane Policing 1-19

Divert Cause Policer 1-19

Control Plane Policing—Platform Enhancement 1-20

Controlling Packet Queue Congestion 1-21

queue-limit Command 1-21

random-detect Command 1-22

random-detect basis Command 1-23

show pxf cpu queue interface summary 1-23

Tail Drop Feature 1-23

Random Early Detection Feature 1-24

Weighted Random Early Detection Feature 1-24

Distributing Bandwidth Between Queues 1-25

bandwidth Command 1-25

bandwidth remaining ratio Command 1-26

Distribution of Remaining Bandwidth Using Ratio 1-26

Dynamically Changing VC Weight and Watermark Values 1-26

Hierarchical Queuing Framework 1-27

Hierarchical Queuing Framework Feature 1-27

MQC Hierarchical Queuing with 3 Level Scheduler 1-27

Hierarchical Policies 1-27

Nested Hierarchical Policies 1-27

Three-Level Hierarchical Policies 1-28

Hierarchical Input Policing 1-28

IP Quality of Service for Subscribers 1-29

Contents

Cisco 10000 Series Router Quality of Service Configuration Guide

OL-7433-09

MQC Support for IP Sessions 1-29

Per-Session Shaping for ATM Interfaces 1-29

Per Session Rate Limiting 1-29

Per User Multiservice Rate Limiting 1-29

Per Session Service Policy Using RADIUS 1-30

Per Session Shaping and Queuing on LNS 1-30

PPP Session Queuing on ATM VCs 1-30

Layer 2 Access Concentrator 1-30

Classification, Policing, and Marking on the LAC 1-30

LAC QoS 1-30

Link Fragmentation and Interleaving 1-31

interface multilink Command 1-31

multilink group Command 1-31

ppp multilink Command 1-32

ppp multilink fragment-delay Command 1-32

ppp multilink fragmentation Command 1-33

ppp multilink fragment disable Command 1-33

ppp multilink group Command 1-33

ppp multilink interleave Command 1-34

MLP Over ATM-Based LFI Feature 1-34

Multi-VC MLP Over ATM-Based LFI Feature 1-34

MLP Over Frame Relay-Based LFI Feature 1-35

MLP Over Serial-Based LFI Feature 1-35

FRF.12 Fragmentation Feature 1-35

Marking Traffic 1-36

set atm-clp Command 1-36

set cos Command 1-36

set discard-class Command 1-36

set fr-de Command 1-37

set ip dscp Command 1-37

set ip precedence Command 1-37

set mpls experimental Command 1-37

set mpls experimental imposition Command 1-38

set qos-group Command 1-38

Marking Feature 1-38

Modular QoS Command Line Interface 1-39

MQC Feature 1-39

QoS CLI Migration from PRE2 to PRE3 1-39

Overhead Accounting 1-39

ATM Overhead Accounting 1-40

Contents

Cisco 10000 Series Router Quality of Service Configuration Guide

OL-7433-09

Ethernet Overhead Accounting 1-40

Traffic Shaping Overhead Accounting for ATM 1-40

Oversubscribing Physical and Virtual Links 1-41

atm over-subscription-factor Command 1-41

Interface Oversubscription Feature 1-41

ATM Virtual Circuit Oversubscription Feature 1-42

map-class frame-relay Command 1-42

Frame Relay PVC Oversubscription Feature 1-42

Virtual LAN Oversubscription Feature 1-43

queue-depth Command 1-43

weight Command 1-43

Weighting Feature 1-44

Policing Traffic 1-44

police Command (Single-Rate) 1-44

police percent Command 1-45

police Command (Two-Rate) 1-45

show atm vp Command 1-46

Percent-Based Policing Feature 1-46

Policing Feature 1-46

Single-Rate Color Marker Feature 1-47

Two-Rate Three-Color Marker Feature 1-47

ATM VP Average Traffic Rate 1-48

Prioritizing Traffic 1-48

priority Command 1-48

priority level Command 1-49

Child Service Policy Allowed Under Priority Class 1-49

Multi-Level Priority Queues 1-49

Priority Queuing Feature 1-49

PVC Bundles 1-50

bump Command 1-50

bump Command (Frame Relay VC-bundle-member) 1-51

bundle Command 1-51

class-bundle Command 1-51

class-vc Command 1-51

dscp Command (Frame Relay VC-bundle-member) 1-51

exp Command 1-51

frame-relay vc-bundle Command 1-51

mpls experimental Command 1-52

oam-bundle Command 1-52

precedence Command 1-52

Contents

vii

Cisco 10000 Series Router Quality of Service Configuration Guide

OL-7433-09

precedence Command (Frame Relay VC-bundle-member) 1-52

protect Command 1-52

protect Command (Frame Relay VC-bundle-member) 1-52

pvc-bundle Command 1-53

pvc Command (Frame Relay VC-bundle) 1-53

PVC Bundles Over ATM and Frame Relay Feature 1-53

ATM PVC Bundle Enhancement—MPLS EXP-Based PVC Selection Feature 1-53

Frame Relay PVC Bundles with QoS Support for IP and MPLS Feature 1-53

QoS Policy Maps 1-53

policy-map Command 1-54

qos match statistics Command 1-54

Policy Maps Feature 1-54

Policy Map Scaling Phase 2 1-54

Qos Policy Propagation through the Border Gateway Protocol 1-55

Shaping PPPoE Over VLAN Sessions Using RADIUS 1-55

Per Session Queuing and Shaping for PPPoE Over VLAN Support Using RADIUS Feature 1-55

Shaping Traffic 1-55

atm pvp Command 1-56

pvc Command 1-56

shape Command 1-56

shape percent Command 1-57

vbr-nrt Command 1-57

ATM VC/VP Shaping Feature 1-57

Class-Based Traffic Shaping Feature 1-58

Frame Relay Traffic Shaping Feature 1-58

Hierarchical Shaping Feature 1-58

Percentage-Based Traffic Shaping Feature 1-58

Traffic Shaping Overhead Accounting for ATM Feature 1-59

Sharing Bandwidth Fairly During Congestion 1-59

Bandwidth Fair Queuing Feature 1-59

Class-Based Weighted Fair Queuing Feature 1-59

Class-Based Weighted Fair Queuing for Virtual Access Interfaces Feature 1-60

Simultaneous Policy Maps 1-60

Simultaneous QoS Policy Map on Interface and PPP Session—A-DSLAM Case 1-60

VLAN Tag-Based Quality of Service 1-60

Manuales populares de Enrutador de red de otras marcas

Allnet

Allnet ALL0333AU Manual de usuario

HomeSeer

HomeSeer HT-SEL Manual de usuario

Sercomm

Sercomm Genesis OC3505D Manual de usuario

Billion

Billion BIPAC 5102 Series Manual de usuario

TP-Link

TP-Link TD-8817 Manual de usuario

Motorola

Motorola MR1900 Manual de usuario

Digi

Digi IX14 Manual de usuario

XAVi

XAVi X8821e Manual de usuario

BEC

BEC 6200WZL Manual de usuario

MikroTik

MikroTik hAP ac3 Series Manual de usuario

Korenix

Korenix JetNet 5428G Series Manual de usuario

NETGEAR

NETGEAR FS526T - Switch Manual de usuario

Korenix

Korenix JetNet 5710G Series Manual de usuario

Automated Logic

Automated Logic ZN551 Manual del propietario

EnGenius

EnGenius ESR-9710 Manual de usuario

LevelOne

LevelOne FBR-1416 Manual de usuario

Dynacord

Dynacord Promatrix 6000 Manual de usuario

Lorex

Lorex F5D8230-4 Manual de usuario