Cisco ASR 900 Series Manuale utente

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration

Guide, Cisco IOS XE Everest 16.7.x (Cisco ASR 900 Series)

First Published: 2017-11-17

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

CONTENTS

CHAPTER 1

Configuring CEM 1

Overview of Circuit Emulation 1

Restrictions for CEM 1

Structure-Agnostic TDM over Packet 2

Configuring CEM for SAToP 2

Configuring CEM Group for SAToP for T1 Interfaces 2

Configuring CEM Classes 3

Configuring CEM Parameters 3

Configuring Payload Size (Optional) 3

Setting the Dejitter Buffer Size 3

Shutting Down a CEM Channel 4

Configuring DS1 CT3 SAToP Mode 4

Configuring VT DS1 SAToP Mode 4

Configuring STS-Nc CEP 4

Configuring CEP 5

Configuring VT-15 CEP 5

Configuring DS3 SAToP 5

Configuring CEM APS 5

Configuring Unidirectional APS for SAToP 6

Configuring Bi-directional ACR (SONET Framing) for SAToP 6

Verifying CEM Statistics for SAToP 6

Associated Commands 7

Additional References for Configuring CEM 9

CHAPTER 2

CEM over MPLS QoS 11

Finding Feature Information 11

Information About CEM over MPLS QOS 11

Classifying and Marking MPLS EXP Overview 11

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x (Cisco

ASR 900 Series)

iii

Prerequisites for CEM over MPLS QoS 12

Restrictions for CEM over MPLS QoS 12

How to Classify and Mark MPLS EXP 12

Classifying MPLS Encapsulated Packets 12

Marking MPLS EXP on Imposed Labels 13

Classifying and Marking MPLS EXP 13

Configuration Examples 13

Example: Defining an MPLS EXP Class Map 13

Example: Defining a Policy Map and Applying the Policy Map to an Ingress Interface 14

Example: Defining a Policy Map and Applying the Policy Map to an Egress Interface 14

Example: Defining an MPLS EXP Imposition Policy Map 14

Example: Applying the MPLS EXP Imposition Policy Map to a Main Interface 15

Example: Applying the MPLS EXP Imposition Policy Map to an EVC 15

Example: Defining an MPLS EXP Label Switched Packets Policy Map 15

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

Interface 16

Additional References for CEM over MPLS QoS 16

CHAPTER 3

Configuring SONET 19

Overview of SONET 20

Restrictions for SONET 20

SONET Switching 21

SONET Hierarchy 22

Section 22

Line 22

Path 22

STS-1 and STS-3 Frames 23

SONET Line and Section Configuration Parameters 24

BERT 25

Concatenated SONET Frames 26

SONET Path Level Configuration Parameters 26

Channelized SONET Frames 27

SONET T1 Configuration Parameters 27

SONET T3 Configuration Parameters 27

SONET VT Configuration Parameters 28

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x

(Cisco ASR 900 Series)

Contents

SONET Protection Switching 28

1+1 APS 28

Benefits of APS 29

APS 1+1 for SONET Layer 1 traffic 29

Scenario for Bidirectional APS 1+1 30

Scenario for Unidirectional APS 1+1 31

UPSR Path Protection 31

Configuring UPSR 32

Configuring UPSR Work and Protection Path Configuration 32

Verification of UPSR Configuration 33

Alarms at SONET Layers 33

SONET Alarm Surveillance 33

Section Alarms 33

Line Alarms 34

Path Alarms 34

VT Alarms 34

T1 Alarms 35

T3 Alarms 35

Alarm Indicators 35

How to Configure SONET 35

Prerequisites for Configuring SONET 36

Configuring MediaType Controller 36

Configuring SONET Ports 36

Managing and Monitoring SONET Line 36

Configuring Line and Section Overhead 36

Configuring Line and Section Threshold 37

Configuring Line Loopback 37

Configuring AIS Shut 37

Configuring Shut 37

Configuring Alarm Reporting 38

Configuring Clock 38

Configuring STS-1 Modes 38

Configuring DS1/T1 CT3 mode of STS-1 39

Configuring STS-Nc - Contiguous Concatenation 39

Configuring CEM Group for Sonet Mode VT1.5-T1 in CESoPSN 40

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x (Cisco

ASR 900 Series)

Contents

Configuring CEM Group for Sonet Mode CT3-T1 in CESoPSN 40

Configuring APS for SAToP 40

Configuring Bi-directional ACR (SONET Framing) for SAToP 40

Configuring Unidirectional APS for SAToP 40

Verifying ACR Configurations for SAToP 41

Configuring APS for CESoPSN 43

Configuring CEM Group for APS CT3-T1 in CESoPSN 43

Configuring CEM Group for APS VT1.5-T1 in CESoPSN 43

Configuring VT 1.5-T1 Loopback 44

Configuring VT 1.5-T1 BERT 44

Configuring Path Overhead 44

Configuring Path Threshold 45

Verification of SONET Configuration 45

Performance Monitoring Use Cases or Deployment Scenarios 48

ONS Pluggables 51

Configuring ONS Pluggables 51

Verifying the Supported Pluggables 51

Configuring BERT in Sonet for CESoPSN 53

Restrictions for SONET BERT on CESoPSN 54

Configuring VT1.5-T1 BERT for CESoPSN 54

Verifying VT1.5-T1 BERT Configuration for CESoPSN 55

Configuring CT3-T1 mode BERT for CESoPSN 55

Verifying CT3-T1 mode BERT for CESoPSN 55

Clock Recovery System in CESoPSN 55

Adaptive Clock Recovery in CESoPSN 56

Differential Clock Recovery in CESoPSN 56

Benefits of Clock Recovery 57

Prerequisites for Clock Recovery 57

Restrictions for Clock Recovery 57

Configuring ACR in VT 1.5-T1 mode for CESoPSN 58

Verifying ACR in VT 1.5-T1 mode for CESoPSN 58

Configuring DCR in VT 1.5-T1 mode for CESoPSN 58

Verifying DCR in VT 1.5-T1 mode for CESoPSN 59

Configuring ACR in CT3-T1 mode for CESoPSN 59

Verifying ACR in CT3-T1 mode for CESoPSN 59

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x

(Cisco ASR 900 Series)

Contents

Configuring DCR in CT3-T1 mode for CESoPSN 60

Verifying DCR in CT3-T1 mode for CESoPSN 60

Configuring Clocking for ACR and DCR on APS for CESoPSN 60

Configuring Clocking for ACR on APS CT3-T1 in CESoPSN 60

Verifying Clocking for ACR on APS CT3-T1 in CESoPSN 61

Configuring Clocking for DCR on APS CT3-T1 in CESoPSN 61

Verifying Clocking for DCR on APS CT3-T1 in CESoPSN 62

Configuring Clocking for ACR on APS VT 1.5-T1 in CESoPSN 62

Verifying Clocking for ACR on APS VT 1.5-T1 in CESoPSN 63

Configuring Clocking for DCR on APS VT 1.5-T1 in CESoPSN 63

Verifying Clocking for DCR on APS VT 1.5-T1 in CESoPSN 64

Associated Commands 64

Additional References for Configuring SONET on 1-Port OC192/STM-64 or 8-Port

OC3/12/48/STM-1/-4/-16 Interface Module 67

CHAPTER 4

Configuring SDH on 1-Port OC-192/STM-64 or 8-Port OC-3/12/48/STM-1/-4/-16 Module 69

Overview of SDH 70

Basic SDH Signal 70

SDH Hierarchy 70

SDH Frame Structure 70

VC 72

CEM Overview 72

Services Provided by SDH Configuration 73

SDH Multiplexing 75

Modes of SDH 76

Configuring AUG Mapping 77

Configuring AU-3 or AU-4 Mapping 77

Configuring Mixed AU-3 and AU-4 Mapping 77

Verifying AUG Mapping Configuration 77

Configuring Modes under AU-4 Mapping 78

Configuring Mode VC4 CEP 78

Verifying Mode VC-4 Configuration 78

Configuring Mode TUG-3 79

Configuring AU-4 —TUG-3 —VC-3 —DS3 79

Verifying DS3 Configuration 79

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x (Cisco

ASR 900 Series)

vii

Contents

Configuring AU-4 —TUG-3 —VC-3 —E3 80

Verifying E3 Configuration 80

Configuring Mode VC-1x 80

Configuring AU-4 —TUG-3 —TUG-2 —VC-11 —T1 81

Configuring AU-4 —TUG-3 —TUG-2 —VC-12 81

Configuring AU-4 —TUG-3 —TUG-2 —VC-11 —VC 82

Configuring AU-4 —TUG-3 —TUG-2 —VC-12 —VC 82

Verifying Mode VC-1x Configuration 82

Configuring Mode VC-4 Nc 83

Verifying Mode VC-4 Nc Configuration 83

Configuring AU-3 —VC-3 —DS3 83

Configuring AU-3 —VC-3 —E3 84

Configuring Modes under AU-3 Mapping 84

Configuring Mode VC-1x 84

Configuring AU-3 —TUG-2 —VC-11 —VC 84

Configuring AU-3 —TUG-2 —VC-12 —VC 84

Configuring AU-3 —TUG-2 —VC-11 —T1 85

Configuring AU-3 —TUG-2 —VC-12 —E1 85

Verifying Mode VC-1x Configuration 85

Restrictions for SDH in SAToP 86

Restrictions for SDH in CESoPSN 87

Configuring Mediatype Controller 88

Configuring Rate on SDH Ports 88

SDH Line and Section Configuration Parameters 89

Overhead 89

Configuring Line and Section Overhead 89

Threshold 89

Configuring Line and Section Threshold 90

Loopback 90

Configuring Line Loopback 90

AIS-Shut 90

Configuring AIS Shut 91

Shutdown 91

Configuring Shut 91

Alarm Reporting 91

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x

(Cisco ASR 900 Series)

viii

Contents

Configuring Alarm Reporting 92

Clock Source 92

Configuring Clock 92

Verifying SDH Line and Section Parameters Configuration 93

Configuring SDH Path Parameters 93

Path Overhead 93

C2 Flag 94

J1 Flag 94

Path Threshold 94

Configuring Path Threshold 95

Path Loopback 95

Configuring Path Loopback 95

Configuring Path BERT 95

Verifying Path Parameters Configuration 95

Configuring BERT in SDH for SAToP 96

Configuring BERT in Modes VC-4 and VC Nc 97

Verifying BERT Configuration in Modes VC-4 and VC Nc 97

Configuring T1 Bert 97

Configuring E1 Bert 98

Configuring BERT in Mode T3/E3 98

Verifying BERT Configuration in Mode T3/E3 98

Configuring BERT in Mode VC-1x 99

Verifying BERT Configuration in Mode VC-1x 99

Configuring BERT in SDH for CESoPSN 99

Restrictions for SDH BERT on CESoPSN 100

Configuring BERT in AUG mapping AU-3 VC1x T1 for CESoPSN 100

Configuring BERT in AUG mapping AU-4 VC1x E1 for CESoPSN 101

Verifying BERT Configuration in AUG mapping AU-3 VC1x T1 or AU-4 VC1x E1 for

CESoPSN 101

SDH T1/E1 Configuration Parameters for SAToP 101

Configuring T1/E1 Parameters 102

Verifying T1/E1 Parameters Configuration 102

SDH T3/E3 Configuration Parameters for SAToP 102

Configuring SDH T3/E3 Parameters Configuration 103

Verifying SDH T3/E3 Parameters Configurations 103

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x (Cisco

ASR 900 Series)

Contents

SDH VC Configuration Parameters for SAToP 103

Configuring VC Parameters 104

Verifying VC Configuration Parameters Configurations 104

Configuring CEM Group for CESoPSN 105

Configuring CEM Group for AU3-T1 on SDH for CESoPSN 105

Verifying CEM Group for AU3-T1 on SDH for CESoPSN 105

Configuring CEM Group for AU4-E1 on SDH for CESoPSN 106

Verifying CEM Group for AU4-E1 on SDH for CESoPSN 106

Configuring ACR and DCR for SAToP 107

Configuring ACR for SAToP 107

Verifying ACR Configuration 108

Configuring DCR for SAToP 108

Verifying DCR Configuration 109

Configuring ACR and DCR for CESoPSN 109

Configuring ACR for CESoPSN 109

Verifying ACR Configuration for CESoPSN 110

Configuring DCR for CESoPSN 110

Verifying DCR Configuration for CESoPSN 111

CHAPTER 5

Configuring MSP on 1-Port OC192/STM-64 or 8-Port OC3/12/48/STM-1/-4/-16 Module 113

1+1 MSP 114

Benefits of MSP 114

Restrictions for MSP 114

MSP 1+1 for SDH Layer 1 traffic 115

Scenario for Bidirectional MSP 1+1 115

Scenario for Unidirectional MSP 1+1 116

Configuring MSP for SAToP 116

Verifying MSP Configuration for SAToP 118

Configuring MSP for CESoPSN 119

Configuring CEM Group for MSP on Virtual ACR AU3-T1 in CESoPSN 119

Verifying CEM Group for MSP on Virtual ACR AU3-T1 in CESoPSN 119

Configuring CEM Group for MSP on Virtual ACR AU4-E1 in CESoPSN 120

Verifying CEM Group for MSP on Virtual ACR AU4-E1 in CESoPSN 120

Configuring Clocking ACR for MSP AU3-T1 in CESoPSN 121

Verifying Clocking ACR for MSP AU3-T1 in CESoPSN 122

1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x

(Cisco ASR 900 Series)

Contents

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