Cisco ASR 900 Series User manual

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: [phone]
800 553-NETS (6387)
Fax: [phone]
Text Part Number:

©Cisco Systems, Inc. All rights reserved.

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)
iii

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)
iv
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)
v
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)
vi
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)
ix
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)
x
Contents