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10-6

Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x

OL-9285-05

Chapter 10 Troubleshooting PortChannels and Trunking

Trunking Issues

Table of Contents

Default Chapter3
- Table of Contents3
New and Changed Information25
- Document Organization27
- Document Conventions29
- Related Documentation30
CHAPTER 1 Troubleshooting Overview34
- Best Practices34
- Troubleshooting Basics34
- Primary Troubleshooting Flowchart41
- System Messages42
- Implementing Syslog with the CLI44
- Troubleshooting with Logs45
- Contacting Customer Support47
CHAPTER 2 Troubleshooting Installs, Upgrades, and Reboots49
- Overview49
- C H a P T E R 2 Troubleshooting Installs, Upgrades, and Reboots50
- Guidelines50
- Disruptive Module Upgrades52
- Troubleshooting a Nondisruptive Upgrade on a Fabric Switch52
- Troubleshooting Fabric Manager Installations53
- Verifying Cisco SAN-OS Software Installations54
- Troubleshooting Cisco SAN-OS Software Upgrades and Downgrades55
  - Software Installation Reports an Incompatibility55
    - Diagnosing Compatibility Issues55
  - Software Installation Ends with Error57
    - Installing SAN-OS Software Using Fabric Manager58
    - Installing Cisco SAN-OS Software from the CLI59
- Troubleshooting Cisco SAN-OS Software System Reboots61
Chapter 3 Managing Storage Services Modules83
- SSM Overview83
- Initial Troubleshooting Checklist85
  - Common Troubleshooting Tools in Fabric Manager85
  - Common Troubleshooting Commands in the CLI85
- SSM Issues85
  - SSM Fails to Boot86
  - SSM Upgrade Is Disruptive91
    - Installing EPLD Images on Modules91
CHAPTER 4 Troubleshooting Hardware97
- Overview97
- C H a P T E R 4 Troubleshooting Hardware98
- SNMP Traps98
- Troubleshooting Startup Issues98
- Troubleshooting Power Supply Issues99
- Troubleshooting Fan Issues104
  - Fan Is Not Spinning104
  - Fan Is Spinning; Fan LED Is Red104
    - Troubleshooting a Fan Failure Using Device Manager105
    - Troubleshooting a Fan Failure Using the CLI106
- Temperature Threshold Violations107
- Troubleshooting Clock Module Issues108
- Troubleshooting Other Hardware Issues109
- Troubleshooting Supervisor Issues110
- Troubleshooting Switching and Services Modules117
CHAPTER 5 Troubleshooting Mixed Generation Hardware135
- Overview135
- Combining Modules and Supervisors141
- Initial Troubleshooting Checklist141
- Generation 1 and Generation 2 Issues141
Chapter 6 Troubleshooting Licensing149
- License Overview149
  - Chassis Serial Numbers150
  - Grace Period150
- Initial Troubleshooting Checklist151
- Licensing Installation Issues154
CHAPTER 7 Troubleshooting Cisco Fabric Services161
- Overview161
- C H a P T E R 7 Troubleshooting Cisco Fabric Services162
- Initial Troubleshooting Checklist162
  - Verifying CFS Using Fabric Manager163
  - Verifying CFS Using the CLI163
- Merge Failure Troubleshooting165
  - Recovering from a Merge Failure with Fabric Manager166
  - Recovering from a Merge Failure with the CLI166
- Lock Failure Troubleshooting167
- Distribution Status Verification169
  - Verifying Distribution Using Fabric Manager169
  - Verifying Distribution Using the CLI169
- CFS Regions Troubleshooting170
Chapter 8 Troubleshooting Ports173
- Overview173
- Initial Troubleshooting Checklist173
  - Limitations and Restrictions176
- Overview of the FC-MAC Driver and the Port Manager176
- Common Problems with Port Interfaces185
Chapter 9 Troubleshooting N-Port Virtualization207
- Overview207
- Initial Troubleshooting Checklist208
  - Limitations and Restrictions208
  - Common CLI Commands for NPV208
- Common Problems with NPV210
CHAPTER 10 Troubleshooting Portchannels and Trunking215
- Portchannel Overview215
- C H a P T E R 10 Troubleshooting Portchannels and Trunking216
- Trunking Overview216
- Initial Troubleshooting Checklist216
  - Common Troubleshooting Tools in Fabric Manager216
  - Common Troubleshooting Commands in the CLI217
- Portchannel Issues217
  - Cannot Configure a Portchannel217
  - Newly Added Interface Does Not Come Online in a Portchannel218
    - Configuring Port Channel Modes Using Fabric Manager218
- Trunking Issues218
  - Cannot Configure Trunking219
  - VSAN Traffic Does Not Traverse Trunk219
CHAPTER 11 Troubleshooting Vsans, Domains, and FSPF221
- Overview221
- Initial Troubleshooting Checklist221
- VSAN Issues223
- Dynamic Port VSAN Membership Issues229
- Domain Issues237
- FSPF Issues244
  - Troubleshooting FSPF244
    - Troubleshooting FSPF Using Device Manager245
    - Troubleshooting FSPF Using the CLI245
  - Loss of Two-Way Communication248
Chapter 12 Troubleshooting SAN Device Virtualization255
- Overview255
- Initial Troubleshooting Checklist255
  - Debugging and Verifying SDV Configuration Using the CLI256
  - SDV Limitations and Restrictions256
- SDV Issues257
- Troubleshooting IVR261
- Overview261
- Configuration Guidelines261
Chapter 13 Troubleshooting IVR262
- Transit Vsans262
- Border Switches262
- Limitations and Restrictions262
- Initial Troubleshooting Checklist263
- IVR Issues266
- Troubleshooting the IVR Wizard275
Chapter 14 Troubleshooting Zones and Zone Sets279
- Overview279
- Troubleshooting Checklist279
  - Troubleshooting Zone Configuration Issues with Fabric Manager280
  - Troubleshooting Zone Configuration Issues with the CLI280
- Zone and Zone Set Issues282
- Zone Merge Failure291
  - Recovering from Link Isolation293
    - Resolving a Link Isolation Because of a Failed Zone Merge Using Fabric Manager293
    - Resolving a Link Isolation Because of a Failed Zone Merge Using the CLI294
  - Mismatched Active Zone Sets Within the same VSAN295
- Enhanced Zoning Issues299
  - Resolving Enhanced Zoning Lock Issues with Fabric Manager301
  - Resolving Enhanced Zoning Lock Issues with the CLI301
Chapter 15 Troubleshooting Distributed Device Alias Services303
- Overview303
- Initial Troubleshooting Checklist303
- Merge Failure Issues306
- Validation and Commit Failure Issues313
Chapter 16 Troubleshooting FICON319
- FICON Overview319
- FICON Configuration Requirements324
- Initial Troubleshooting Checklist325
- FICON Issues327
Chapter 17 Troubleshooting RADIUS and TACACS331
- AAA Overview331
- Initial Troubleshooting Checklist331
  - Common Troubleshooting Tools in Fabric Manager332
  - Common Troubleshooting Commands in the CLI332
- AAA Issues332
- Troubleshooting RADIUS and TACACS+ with Cisco ACS341
Chapter 18 Troubleshooting Users and Roles343
- Overview343
- Initial Troubleshooting Checklist346
  - Common Troubleshooting Tools in Fabric Manager346
  - Common Troubleshooting Commands in the CLI346
- User and Role Issues346
- Troubleshooting Users and Roles with Cisco ACS354
Chapter 19 Troubleshooting FC-SP, Port Security, and Fabric Binding355
- FC-SP Overview355
- Port Security Overview356
- Fabric Binding Overview356
- Initial Troubleshooting Checklist356
  - Common Troubleshooting Tools in Fabric Manager357
  - Common Troubleshooting Commands in the CLI357
- FC-SP Issues358
  - Switch or Host Blocked from Fabric358
  - Authentication Fails When Using Cisco ACS361
- Port Security Issues361
- Fabric Binding Issues369
Chapter 20 Troubleshooting IP Storage Services375
- Overview375
  - Iscsi Restrictions376
  - Islb Restrictions376
- Initial Troubleshooting Checklist377
  - Common Troubleshooting Tools in Fabric Manager377
  - Common Troubleshooting Commands in the CLI377
- IP Issues379
- FCIP Issues383
- Iscsi Issues409
- Iscsi TCP Performance Issues422
  - CLI Commands Used to Access Performance Data423
  - Understanding TCP Parameters for Iscsi423
- Lab Setup424
- Islb Configuration, Commit, or Merge Failed-"VSAN ID Is Not yet Configured433
- Islb Configuration, Commit, or Merge Failed-"Failed to Allocate WWN434
- Islb Configuration, Commit, or Merge Failed-"Duplicate WWN Found as434
- Islb Configuration, Commit, or Merge Failed-"Duplicate Node Name434
- Islb Configuration Failed-"Pending Islb CFS Config Has Reached Its Limit435
- Iscsi Disable Failed-"Cannot Disable Iscsi - Large Iscsi Config Present435
  - Islb Commit Timeout435
- Session Down-"Pwwn in Use at Remote Switch436
Chapter 21 Troubleshooting IP Access Lists441
- Overview441
- Initial Troubleshooting Checklist444
  - Common Troubleshooting Tools in Fabric Manager444
  - Common Troubleshooting Commands in the CLI444
- IP-ACL Issues444
Chapter 22 Troubleshooting Ipsec449
- Overview449
- Initial Troubleshooting Checklist452
  - Common Troubleshooting Tools in Fabric Manager452
  - Common Troubleshooting Commands in the CLI453
- Ipsec Issues453
Chapter 23 Troubleshooting Santap465
- Overview465
- Definitions466
- Limitations466
  - Interface Restrictions467
- Initial Troubleshooting Checklist467
- Santap Issues470
Chapter 24 Troubleshooting Digital Certificates475
- Overview475
- Initial Troubleshooting Checklist477
  - Common Troubleshooting Tools in Fabric Manager477
  - Common Troubleshooting Commands in the CLI478
- Digital Certificate Issues478
Chapter 25 Troubleshooting Call Home487
- Overview487
- Initial Troubleshooting Checklist489
- Call Home Issues490
Chapter 26 Troubleshooting Fabric Manager497
- Overview497
- Guidelines498
- Initial Troubleshooting Checklist498
  - Common Troubleshooting Tools in Fabric Manager498
- Troubleshooting Fabric Manager Issues498
- Tips for Using Fabric Manager500
- Troubleshooting Fabric Manager Web Client503
- Troubleshooting Performance Manager508
  - Performance Manager Generates Java Error509
  - Performance Manager Not Working509
- Troubleshooting Device Manager509
  - Wrong Version of Device Manager Is Launched510
Appendix511
Before Contacting Technical Support511
- Steps to Perform before Calling TAC511
- Using Core Dumps515
  - Setting up Core Dumps Using the CLI515
Appendix517
Troubleshooting Tools and Methodology517
- Using Cisco MDS 9000 Family Tools517
- Using Fibre Channel SPAN539
- Using Cisco Network Management Products540
- Using Other Troubleshooting Products543
  - Fibre Channel Testers543
  - Fibre Channel Protocol Analyzers543
- Using Host Diagnostic Tools544
Appendix547
Configuration Limits for Cisco MDS SAN-OS Release547

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