Cisco ONS 15454 SDH - Chapter 20 POS on ONS Ethernet Cards; POS Overview

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CHAPTER

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Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0

POS on ONS Ethernet Cards

This chapter describes packet-over-SONET/SDH (POS) and its implementation on ONS Ethernet cards.

This chapter contains the following major sections:

•

POS Overview, page 20-1

•

POS Interoperability, page 20-2

•

POS Encapsulation Types, page 20-4

•

POS Framing Modes, page 20-7

•

POS Characteristics of Specific ONS Ethernet Cards, page 20-7

•

Ethernet Clocking Versus SONET/SDH Clocking, page 20-10

POS Overview

Unlike Asynchronous Transfer Mode (ATM) and Frame Relay, Ethernet was not originally designed for

interfacing with SONET/SDH. Ethernet data packets need to be framed and encapsulated into a

SONET/SDH frame for transport across the SONET/SDH network. This framing and encapsulation

process is known as POS.

Main Page

Default Chapter3
- Table of Contents3
- Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide26
Chapter 1 ML-Serie Card Overview40
- ML-Series Feature List41
- Displaying ML-Series POS and Ethernet Statistics on CTC45
- Table 2-1 ML-Series POS and Ethernet Statistics Fields and Buttons46
- Table 2-2 CTC Display of Ethernet Port Provisioning Status46
Chapter 2 CTC Operation46
- Displaying ML-Series POS Ports Provisioning Information on CTC47
  - Provisioning Card Mode48
  - Table 2-3 CTC Display of POS Port Provisioning Status48
- Displaying the FPGA Information49
- Hardware Installation51
Chapter 3 Initial Configuration52
- Telnetting to the Node IP Address and Slot Number53
- ML-Series IOS CLI Console Port54
- Figure 3-2 CTC Node View Showing IP Address and Slot Number54
- Telnetting to a Management Port54
- Startup Configuration File57
  - Manually Creating a Startup Configuration File through the Serial Console Port57
  - CTC and the Startup Configuration File59
    - Loading a Cisco IOS Startup Configuration File through CTC60
    - Database Restore of the Startup Configuration File61
- Multiple Microcode Images61
- Changing the Working Microcode Image62
- Table 3-2 Microcode Image Feature Comparison62
- Version up Software Upgrade64
- Cisco IOS Command Modes66
- Table 3-3 Cisco IOS Command Modes67
- Using the Command Modes68
Exit68
- Getting Help68
Chapter 4 Configuring Interfaces69
- General Interface Guidelines69
  - MAC Addresses70
  - Interface Port ID70
- Basic Interface Configuration71
- Basic Fast Ethernet, Gigabit Ethernet, and POS Interface Configuration72
- CRC Threshold Configuration79
- Monitoring Operations on the Fast Ethernet and Gigabit Ethernet Interfaces80
Chapter 5 Configuring POS83
- POS on the ML-Series Card83
  - ML-Series SONET and SDH Circuit Sizes83
Vcat84
- Table 5-1 SONET STS Circuit Capacity in Line Rate Mbps84
- Sw-Lcas85
- Table 5-2 VCAT Circuit Sizes Supported by ML100T-12, ML100X-8, and ML1000-2 Cards85
- Framing Mode, Encapsulation, and CRC Support86
- SONET/SDH Alarms88
- C2 Byte and Scrambling90
  - Third-Party POS Interfaces C2 Byte and Scrambling Values91
  - Configuring SPE Scrambling91
- Monitoring and Verifying POS91
- POS Configuration Examples93
- Understanding Basic Bridging99
- Configuring Basic Bridging100
Chapter 6 Configuring Bridge100
- Monitoring and Verifying Basic Bridging101
- Figure 6-1 Bridging Example101
- Transparent Bridging Modes of Operation103
  - IP Routing Mode103
- No IP Routing Mode104
- STP Features109
Chapter 7 Configuring STP and RSTP110
- Election of the Root Switch111
- Bridge ID, Switch Priority, and Extended System ID112
- Spanning-Tree Timers112
- Creating the Spanning-Tree Topology112
- Table 7-1 Switch Priority Value and Extended System ID112
- Table 7-2 Spanning-Tree Timers112
- Spanning-Tree Interface States113
- Spanning-Tree Address Management116
- STP and IEEE 802.1Q Trunks116
- Spanning Tree and Redundant Connectivity116
- Accelerated Aging to Retain Connectivity117
Rstp117
- Supported RSTP Instances117
- Port Roles and the Active Topology117
- Rapid Convergence119
- Synchronization of Port Roles120
- Bridge Protocol Data Unit Format and Processing121
  - Processing Superior BPDU Information122
  - Processing Inferior BPDU Information122
- Topology Changes122
- Interoperability with IEEE 802.1D STP123
- Configuring STP and RSTP Features123
- Verifying and Monitoring STP and RSTP Status128
- Table 7-6 Commands for Displaying Spanning-Tree Status129
Chapter 8 Configuring Vlans131
- Understanding Vlans131
- Configuring IEEE 802.1Q VLAN Encapsulation132
- Figure 8-1 Vlans Spanning Devices in a Network132
- IEEE 802.1Q VLAN Configuration133
- Figure 8-2 Bridging IEEE 802.1Q Vlans134
- Monitoring and Verifying VLAN Operation135
CHAPTER 9 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling137
- Understanding IEEE 802.1Q Tunneling137
- Figure 9-1 IEEE 802.1Q Tunnel Ports in a Service-Provider Network138
- C H a P T E R 9 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling138
- Configuring IEEE 802.1Q Tunneling140
- Understanding VLAN-Transparent and VLAN-Specific Services142
- Table 9-1 VLAN-Transparent Service Versus VLAN-Specific Services142
- VLAN-Transparent and VLAN-Specific Services Configuration Example143
- Figure 9-3 ERMS Example143
- Understanding Layer 2 Protocol Tunneling145
- Configuring Layer 2 Protocol Tunneling146
Chapter 10 Configuring Link Aggregation151
- Understanding Link Aggregation151
- Understanding Encapsulation over Etherchannel or POS Channel157
  - Configuring Encapsulation over Etherchannel or POS Channel157
  - Encapsulation over Etherchannel Example158
- Monitoring and Verifying Etherchannel and POS160
- Understanding Link Aggregation Control Protocol160
CHAPTER 11 Configuring Networking Protocols165
- Basic IP Routing Protocol Configuration165
Rip166
- C H a P T E R 11 Configuring Networking Protocols166
Eigrp166
Ospf166
Bgp167
- Enabling IP Routing167
- Configuring IP Routing168
- OSPF Interface Parameters177
- OSPF Area Parameters178
- Other OSPF Behavior Parameters180
- Change LSA Group Pacing182
- Loopback Interface183
- Monitoring OSPF183
Chapter 12 Configuring IRB201
- Understanding Integrated Routing and Bridging201
- Configuring IRB202
- Chapter 12 Configuring IRB202
- IRB Configuration Example203
- Monitoring and Verifying IRB204
- Configuring IRB204
- Table 12-1 Commands for Monitoring and Verifying IRB205
- Show Interfaces Irb Field Descriptions206
Chapter 13 Configuring VRF Lite207
- Understanding VRF Lite207
- Configuring VRF Lite208
- VRF Lite Configuration Example209
- Configuring VRF Lite209
- Monitoring and Verifying VRF Lite213
- Table 13-1 Commands for Monitoring and Verifying VRF Lite213
- Understanding Qos215
  - Priority Mechanism in IP and Ethernet216
  - IP Precedence and Differentiated Services Code Point216
Chapter 14 Configuring Quality of Service216
- Ethernet Cos217
- Figure 14-1 IP Precedence and DSCP217
- ML-Series Qos218
- Qos on Cisco Proprietary RPR224
- Configuring Qos226
- Creating a Traffic Policy227
Table 14-7 Cos-Based Packet Statistics Command244
Chapter 15 Configuring the Switching Database Manager249
- Understanding the SDM249
- Understanding SDM Regions249
- Configuring SDM250
- Monitoring and Verifying SDM251
- Table 15-2 Partitioning the TCAM Size for Acls251
Chapter 16 Configuring Access Control Lists253
- Understanding Acls253
- ML-Series ACL Support253
IP Acls254
- Named IP Acls254
- User Guidelines254
- Creating IP Acls255
- Modifying ACL TCAM Size257
- Table 16-2 Applying ACL to Interface257
CHAPTER 17 Configuring Cisco Proprietary Resilient259
Packet Ring259
- Understanding Cisco Proprietary RPR260
- Configuring Cisco Proprietary RPR265
  - Connecting the ML-Series Cards with Point-To-Point STS/STM Circuits266
  - Configuring CTC Circuits for Cisco Proprietary RPR266
Card270
- Assigning the ML-Series Card POS Ports to the SPR Interface272
- Creating the Bridge Group and Assigning the Ethernet and SPR Interfaces273
- Cisco Proprietary RPR Cisco IOS Configuration Example274
- Figure 17-8 Cisco Proprietary RPR Bridge Group274
- CRC Threshold Configuration and Detection276
- Monitoring and Verifying Cisco Proprietary RPR276
- Verifying Ethernet Connectivity between Cisco Proprietary RPR Ethernet Access Ports276
- Add an ML-Series Card into a Cisco Proprietary RPR277
- Delete an ML-Series Card from a Cisco Proprietary RPR282
- Understanding Cisco Proprietary RPR Link Fault Propagation286
  - LFP Sequence287
  - Propagation Delays288
- Configuring LFP288
  - LFP Configuration Requirements289
  - Monitoring and Verifying LFP289
- Cisco Proprietary RPR Keep Alive290
  - Configuring Cisco Proprietary RPR Keep Alive290
  - Monitoring and Verifying Cisco Proprietary RPR Keep Alives291
- Cisco Proprietary RPR Shortest Path292
- Understanding Redundant Interconnect295
Chapter 18 Configuring Ethernet over MPLS299
- Understanding Eompls299
- Configuring Eompls302
- Eompls Configuration Example307
- Figure 18-2 Eompls Configuration Example308
- Monitoring and Verifying Eompls310
- Understanding MPLS-TE311
  - RSVP on the ML-Series Card311
  - Ethernet FCS Preservation311
- Configuring MPLS-TE312
- MPLS-TE Configuration Example314
- Monitoring and Verifying MPLS-TE and IP RSVP316
Table 18-4 Commands for Monitoring and Verifying IP RSVP317
Chapter 19 Configuring Security for the ML-Series Card319
- Understanding Security319
- Disabling the Console Port on the ML-Series Card320
- Secure Login on the ML-Series Card320
- Secure Shell on the ML-Series Card320
- RADIUS on the ML-Series Card324
- RADIUS Relay Mode324
  - Configuring RADIUS Relay Mode325
- RADIUS Stand Alone Mode325
Chapter 20 POS on ONS Ethernet Cards339
- POS Overview339
- POS Interoperability340
- Figure 20-1 Ethernet to POS Process on ONS Node340
- Chapter 20 PO on on Ethernet Card340
- POS Encapsulation Types342
  - IEEE 802.17B342
Lex343
- Figure 20-2 RPR Data Frames343
- Figure 20-3 LEX under HDLC Framing343
- Cisco HDLC344
- Figure 20-4 BCP under HDLC Framing344
- Figure 20-5 PPP Frame under HDLC Framing344
- Figure 20-6 Cisco HDLC under HDLC Framing344
Ppp/Bcp344
- E-Series Proprietary345
- POS Characteristics of Specific ONS Ethernet Cards345
- POS Framing Modes345
  - HDLC Framing345
  - GFP-F Framing345
- Ethernet Clocking Versus SONET/SDH Clocking348
Chapter 21 Configuring RMON349
- Understanding RMON349
- Configuring RMON350
  - Default RMON Configuration350
  - Configuring RMON Alarms and Events350
- Figure352
- Collecting Group History Statistics on an Interface353
- Collecting Group Ethernet Statistics on an Interface354
- Understanding ML-Series Card CRC Error Threshold354
- Configuring the ML-Series Card CRC Error Threshold361
  - Clearing the CRC-ALARM Wrap with the Clear CRC Error Command362
- Configuring ML-Series Card RMON for CRC Errors363
- Displaying RMON Status368
Chapter 22 Configuring SNMP371
- Understanding SNMP371
- Configuring SNMP376
- Displaying SNMP Status384
Table 22-4 Commands for Displaying SNMP Information384
Chapter 23 E-Series and G-Series Ethernet Operation385
- G-Series Application385
- G-Series Circuit Configurations390
- G-Series Gigabit Ethernet Transponder Mode392
- E-Series Application397
- E-Series Circuit Configurations407
- Remote Monitoring Specification Alarm Thresholds410
- Figure 23-22 Hub-And-Spoke Ethernet Circuit410
Chapter 24 CE-100T-8 Ethernet Operation411
- CE-100T-8 Overview411
- Figure 24-1 CE-100T-8 Point-To-Point Circuit411
- CE-100T-8 Ethernet Features412
- CE-100T-8 SONET/SDH Circuits and Features417
Chapter 25 CE-1000-4 Ethernet Operation427
- CE-1000-4 Overview427
- CE-1000-4 Ethernet Features428
- CE-1000-4 SONET/SDH Circuits and Features432
Chapter 26 Configuring IEEE 802.17B Resilient Packet Ring435
- Understanding RPR-IEEE435
- Topology and Protection Control Frame Formats439
  - CTM and RPR-IEEE440
- Configuring RPR-IEEE Characteristics440
- Configuring RPR-IEEE Protection442
- Configuring Qos on RPR-IEEE450
Class a450
Classb451
Classc451
- MQC -IEEE RPR CLI Characteristics451
- Configuring Fairness Weights452
- Configuring Traffic Rates for Transmission452
- Configuring RPR-IEEE Service Classes Using the Modular Qos CLI453
- Configuration Example for RPR-IEEE Qos454
  - Configuration Example Using MQC to Configure Simple RPR-IEEE Qos455
  - Configuration Example Using MQC to Configure Complex RPR-IEEE Qos455
- Verifying and Monitoring RPR-IEEE456
- Configuring RPR-IEEE End-To-End464
Appendix A Command Reference478
- Unsupported Privileged Exec Commands563
Appendix B Unsupported CLI Command564
- Unsupported POS Interface Configuration Commands565
- Unsupported POS Interface Configuration Commands (Cisco Proprietary RPR Virtual Interface)566
- Unsupported Fastethernet or Gigabitethernet Interface Configuration Commands567
- Unsupported Port-Channel Interface Configuration Commands568
Appendix C Using Technical Support572
- Providing Data to Your Technical Support Representative574

Cisco ONS 15454 SDH - Chapter 20 POS on ONS Ethernet Cards; POS Overview

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