Cisco ASR 900 Series Manuale utente

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM

Interface Module Configuration Guide, Cisco IOS XE Fuji 16.7.x (Cisco

ASR 900 Series)

First Published: 2017-04-04

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

Text Part Number:

CONTENTS

CHAPTER 1

Configuring Support of 1 port OC-48/ 4 port OC-12/OC-3 + 12 port T1/E1 + 4 port T3/E3 CEM

Interface Module 1

Restrictions of Feature Support on 4 Port OC48/OC12/OC3 + 12 Port T1/E1 + 4 Port T3/E3 CEM

Interface Module 1

Port Licensing 2

Information About Port Licensing 2

Installing a License 3

Enabling a License 3

Verifying License Configuration 3

Disabling a License 4

Uninstalling a License 4

Enabling T1 Controller 4

Configuring the Controller 4

Enabling T3 Controller 5

Enabling SONET Controller 5

Associated Commands 5

Additional References 5

CHAPTER 2

Configuring CEM 7

Overview of Circuit Emulation 7

Structure-Agnostic TDM over Packet 7

Configuring CEM 8

Configuring CEM Classes 8

Configuring CEM Parameters 8

Configuring Payload Size (Optional) 9

Setting the Dejitter Buffer Size 9

Shutting Down a CEM Channel 9

Configuring DS1 CT3 SAToP Mode on OCx Ports 9

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS

XE Fuji 16.7.x (Cisco ASR 900 Series)

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Configuring VT DS1 SAToP Mode 9

Configuring STS-Nc CEP 10

Configuring CEP 10

Configuring VT-15 CEP 10

Configuring DS3 SAToP 10

Configuring CEM APS 11

Configuring Unidirectional APS 11

Configuring Bi-directional ACR (SONET Framing) 11

Configuring CEM APS 12

Associated Commands 12

Additional References for Configuring CEM 13

CHAPTER 3

Configuring T1 Interfaces 15

Information About T1 Interfaces 15

Overview of T1 Interfaces 15

Configuring the Controller 15

Verifying Controller Configuration 16

Performance Monitoring 16

Configuring Structure-Agnostic TDM over Packet - T1 Interfaces 16

Verifying CEM Configuration for SAToP 17

Troubleshooting T1 Controllers 17

Running Bit Error Rate Testing 17

Configuring BERT 18

Verifying BERT Configuration for SAToP 18

Loopback on T1 Interfaces 19

Configuring Loopback 20

Associated Commands 20

CHAPTER 4

Configuring T3 Interfaces 23

Information About T3 Interfaces 23

Overview of T3 Interfaces 23

Benefits of T3 Interfaces 23

Enabling T3 Controller 24

Configuring the Controller of Clear Channel T3 Interfaces 24

Verifying Controller Configuration of Clear Channel T3 Interfaces 24

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco

IOS XE Fuji 16.7.x (Cisco ASR 900 Series)

Contents

Configuring the Controller of Channelized T3/T1 Interfaces 25

Verifying the Controller Configuration of Channelized T3/T1 Interfaces 25

Configuring SAToP - Clear Channel T3 Interfaces 26

Verifying CEM Configuration of Clear Channel T3 Interfaces for SAToP 26

Configuring SAToP - Channelized T3/T1 Interfaces 27

Verifying the CEM Configuration of Channelized T3/T1 Interfaces 27

Performance Monitoring 28

Troubleshooting T3 Controllers 31

Running Bit Error Rate Testing 31

Configuring BERT for Clear and Channelized T3 Interfaces 32

Verifying the BERT Configuration for T3 Interfaces 33

Loopback on T1/T3 Interfaces 33

Configuring Loopback for T3 Interfaces 34

Associated Commands 34

CHAPTER 5

Configuring Pseudowire 37

Information About Pseudowire 37

Overview of Pseudowire 37

Overview of Circuit Emulation 37

Structure-Agnostic TDM over Packet 38

How to Configure Pseudowire 38

Configuring CEM 38

Configuring CEM Group for SAToP for T1 Interfaces 38

Configuring CEM Classes 39

Configuring CEM Parameters 39

Configuring Payload Size 39

Configuring Payload Size for T3 Interfaces 39

Setting the Dejitter Buffer Size 40

Shutting Down a CEM Channel 40

Configuring CEM Parameter on CEM Interface 40

Verifying the Interface Configuration 40

Associated Commands 41

Additional References for Configuring Pseudowire 42

CHAPTER 6

Clock Recovery System for SAToP 45

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS

XE Fuji 16.7.x (Cisco ASR 900 Series)

Contents

Finding Feature Information 45

Information About Clock Recovery 45

Adaptive Clock Recovery (ACR) 45

Differential Clock Recovery (DCR) 46

Benefits of Clock Recovery 46

Prerequisites for Clock Recovery 47

Restrictions for Clock Recovery 47

How to Configure ACR and DCR 47

Configuring Adaptive Clock Recovery of T1 Interfaces for SAToP 47

Configuring Adaptive Clock Recovery of T3 Interfaces for SAToP 48

Verifying Adaptive Clock Recovery Configuration of T3 Interfaces for SAToP 48

Configuring Differential Clock Recovery of T3 Interfaces for SAToP 49

Verifying the Differential Clock Recovery Configuration of Channelized T3/T1 Interfaces

for SAToP 49

Associated Commands 50

Additional References for Clock Recovery 51

CHAPTER 7

CEM over MPLS QoS 53

Finding Feature Information 53

Information About CEM over MPLS QOS 53

Classifying and Marking MPLS EXP Overview 53

Prerequisites for CEM over MPLS QoS 54

Restrictions for CEM over MPLS QoS 54

How to Classify and Mark MPLS EXP 54

Classifying MPLS Encapsulated Packets 54

Marking MPLS EXP on Imposed Labels 55

Classifying and Marking MPLS EXP 55

Configuration Examples 55

Example: Defining an MPLS EXP Class Map 55

Example: Defining a Policy Map and Applying the Policy Map to an Ingress Interface 56

Example: Defining a Policy Map and Applying the Policy Map to an Egress Interface 56

Example: Defining an MPLS EXP Imposition Policy Map 56

Example: Applying the MPLS EXP Imposition Policy Map to a Main Interface 57

Example: Applying the MPLS EXP Imposition Policy Map to an EVC 57

Example: Defining an MPLS EXP Label Switched Packets Policy Map 57

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco

IOS XE Fuji 16.7.x (Cisco ASR 900 Series)

Contents

Example: Applying the MPLS EXP Label Switched Packets Policy Map to a Main

Interface 58

Additional References for CEM over MPLS QoS 58

CHAPTER 8

Configuring SONET 61

Overview of SONET 62

Restrictions for SONET 62

SONET Switching 63

SONET Hierarchy 64

Section 64

Line 64

Path 64

STS-1 and STS-3 Frames 65

SONET Line and Section Configuration Parameters 66

BERT 67

Concatenated SONET Frames 68

SONET Path Level Configuration Parameters 68

Channelized SONET Frames 68

SONET T1 Configuration Parameters 68

SONET T3 Configuration Parameters 69

SONET VT Configuration Parameters 69

SONET Protection Switching 69

1+1 APS 70

Benefits of APS 70

APS 1+1 for SONET Layer 1 traffic 71

Scenario for Bidirectional APS 1+1 71

Scenario for Unidirectional APS 1+1 72

Alarms at SONET Layers 72

SONET Alarm Surveillance 73

Section Alarms 73

Line Alarms 73

Path Alarms 73

VT Alarms 74

T1 Alarms 74

T3 Alarms 74

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS

XE Fuji 16.7.x (Cisco ASR 900 Series)

vii

Contents

Alarm Indicators 75

How to Configure SONET 75

Prerequisites for Configuring SONET 75

Configuring MediaType Controller 75

Configuring SONET Ports 75

Managing and Monitoring SONET Line 75

Configuring Line and Section Overhead 76

Configuring Line Loopback 76

Configuring AIS Shut 76

Configuring Shut 76

Configuring Alarm Reporting 77

Configuring Clock 77

Configuring STS-1 Modes 77

Configuring DS1/T1 CT3 mode of STS-1 78

Configuring STS-Nc - Contiguous Concatenation 78

Configuring APS for SAToP 78

Configuring Bi-directional ACR (SONET Framing) 79

Configuring Unidirectional APS 79

Verifying ACR Configurations 79

Configuring VT 1.5-T1 Loopback 81

Configuring VT 1.5-T1 BERT 82

Configuring Path Overhead 82

Configuring Path Threshold 82

Verification of SONET Configuration 82

Performance Monitoring Use Cases or Deployment Scenarios 85

ONS Pluggables 89

Configuring ONS Pluggables 89

Verifying the Supported Pluggables 89

Associated Commands 91

CHAPTER 9

Configuring SDH 95

Overview of SDH 95

Basic SDH Signal 96

SDH Hierarchy 96

SDH Frame Structure 96

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco

IOS XE Fuji 16.7.x (Cisco ASR 900 Series)

viii

Contents

VC 97

CEM Overview 98

Services Provided by SDH Configuration 98

SDH Multiplexing 101

Modes of SDH 102

Configuring AUG Mapping 103

Configuring AU-3 or AU-4 Mapping 103

Configuring Mixed AU-3 and AU-4 Mapping 103

Verifying AUG Mapping Configuration 103

Configuring Modes under AU-4 Mapping 104

Configuring Mode VC-4 CEP 104

Verifying Mode VC-4 Configuration 104

Configuring Mode TUG-3 105

Configuring AU-4 —TUG-3 —VC-3 —DS3 105

Verifying DS3 Configuration 105

Configuring AU-4 —TUG-3 —VC-3 —E3 106

Verifying E3 Configuration 106

Configuring Mode VC-1x 106

Configuring AU-4 —TUG-3 —TUG-2 —VC-11 —T1 107

Configuring AU-4 —TUG-3 —TUG-2 —VC-12 107

Configuring AU-4 —TUG-3 —TUG-2 —VC-11 —VC 108

Configuring AU-4 —TUG-3 —TUG-2 —VC-12 —VC 108

Verifying Mode VC-1x Configuration 108

Configuring Mode VC-4 Nc 109

Verifying Mode VC-4 Nc Configuration 109

Configuring AU-3 —VC-3 —DS3 109

Configuring AU-3 —VC-3 —E3 110

Configuring Modes under AU-3 Mapping 110

Configuring Mode VC-1x 110

Configuring AU-3 —TUG-2 —VC-11 —VC 110

Configuring AU-3 —TUG-2 —VC-12 —VC 110

Configuring AU-3 —TUG-2 —VC-11 —T1 111

Configuring AU-3 —TUG-2 —VC-12 —E1 111

Verifying Mode VC-1x Configuration 111

Restrictions for SDH 112

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS

XE Fuji 16.7.x (Cisco ASR 900 Series)

Contents

Configuring Mediatype Controller 113

Configuring Rate on SDH Ports 113

SDH Line and Section Configuration Parameters 113

Overhead 113

Configuring Line and Section Overhead 114

Threshold 114

Configuring Line and Section Threshold 114

Loopback 114

Configuring Line Loopback 115

AIS-Shut 115

Configuring AIS Shut 115

Shutdown 115

Configuring Shut 115

Alarm Reporting 116

Configuring Alarm Reporting 116

Clock Source 117

Configuring Clock 117

Verifying SDH Line and Section Parameters Configuration 117

Configuring SDH Path Parameters 118

Path Overhead 118

Configuring C2 Flag 118

J1 Flag 119

Path Threshold 119

Configuring Path Threshold 119

Path Loopback 120

Configuring Path Loopback 120

Configuring Path BERT 120

Verifying Path Parameters Configuration 120

Configuring BERT in SDH for SAToP 121

Configuring BERT in Modes VC-4 and VC Nc 122

Verifying BERT Configuration in Modes VC-4 and VC Nc 122

Configuring E1 Bert 122

Configuring T1 Bert 122

Configuring BERT in Mode T3/E3 123

Verifying BERT Configuration in Mode T3/E3 123

1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco

IOS XE Fuji 16.7.x (Cisco ASR 900 Series)

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