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OmniSwitch OS6860/OS6900/OS10K Troubleshooting Guide Part No.032996-00 Rev.A AOS Release 7.X and 8.X January 2015 [code] Table of Contents 1. About This Guide ............................................................................................................................................ 4 1.1. Supported Platforms .................................................................................................................................. 4 1.2. Who Should Read this Manual? ................................................................................................................ 4 1.3. When Should I Read this Manual? ............................................................................................................ 4 1.4. What is in this Manual? ............................................................................................................................. 4 1.5. What is Not in this Manual? ...................................................................................................................... 5 1.6. How is the Information Organized? ........................................................................................................... 5 1.7. Related Documentation.............................................................................................................................. 5 1.8. Before Calling Alcatel-Lucent’s Technical Assistance Center .................................................................. 6 2. Troubleshooting the Switch System .............................................................................................................. 8 2.1. Introduction................................................................................................................................................ 8 2.2. Troubleshooting the System on OS6900/OS10K Switches ....................................................................... 8 2.3. Troubleshooting System on OS6860/E Switches ...................................................................................... 9 2.4. Advanced Troubleshooting ...................................................................................................................... 12 2.5. Memory Leak ........................................................................................................................................... 14 2.6. Packet Driver ........................................................................................................................................... 14 2.7. The second column of output provides changes since the previous execution of the command.Logs .... 15 3. Troubleshooting Virtual Chassis ................................................................................................................. 16 3.1. Introduction.............................................................................................................................................. 16 3.2. Basic Troubleshooting ............................................................................................................................. 18 3.3. Advanced Troubleshooting ...................................................................................................................... 19 3.4. Scenarios : ................................................................................................................................................ 22 4. Troubleshooting Switched Ethernet Connectivity ..................................................................................... 27 4.1. Verify Physical Layer Connectivity......................................................................................................... 27 4.2. Verify Current Running Configuration .................................................................................................... 27 4.3. Verify Source Learning ........................................................................................................................... 28 4.4. Verify Switch Health ............................................................................................................................... 28 4.5. Verify ARP .............................................................................................................................................. 28 5. Troubleshooting Source Learning/Layer 2 Forwarding ........................................................................... 29 5.1. Basic Troubleshooting ............................................................................................................................. 29 5.2. Advanced Troubleshooting Scenarios ..................................................................................................... 31 MAC Addresses Not Aging Out ..................................................................................................................... 31 MAC Address Flapping .................................................................................................................................. 33 5.3. bShell Troubleshooting ............................................................................................................................ 34 6. Troubleshooting ARP ................................................................................................................................... 37 6.1. Basic Troubleshooting ............................................................................................................................. 37 6.2. Advanced ARP Troubleshooting ............................................................................................................. 39 7. Troubleshooting Spanning Tree .................................................................................................................. 42 7.1. Basic troubleshooting .............................................................................................................................. 42 7.2. Advanced Troubleshooting ...................................................................................................................... 44 8. Troubleshooting Link Aggregation ............................................................................................................. 48 8.1. Basic Troubleshooting ............................................................................................................................. 49 8.2. Advanced Troubleshooting ...................................................................................................................... 50 9. Troubleshooting BOOTP/DHCP/UDP Relay ............................................................................................. 53 9.1. Troubleshooting DHCP ........................................................................................................................... 53 9.2. Troubleshooting UDP Relay .................................................................................................................... 56 9.3. Basic troubleshooting .............................................................................................................................. 59 9.4. Advanced troubleshooting ....................................................................................................................... 61 9.5. Troubleshooting in Maintenance Shell .................................................................................................... 62 10. Troubleshooting QoS .................................................................................................................................. 63 10.1. Introduction ............................................................................................................................................ 63 10.2. Basic Troubleshooting ........................................................................................................................... 75 10.3. Advanced troubleshooting ..................................................................................................................... 76 10.4. Troubleshooting in the Maintenance Shell ............................................................................................ 79 10.5. Troubleshooting in bShell ...................................................................................................................... 79 11. Troubleshooting RIP .................................................................................................................................. 82 12. Troubleshooting OSPF ............................................................................................................................... 85 12.1. Supported debug variables ..................................................................................................................... 85 12.2. Planned and unplanned Virtual Chassis takeover .................................................................................. 85 12.3. Minimum working configuration ........................................................................................................... 87 12.4. Basic troubleshooting ............................................................................................................................ 87 12.5. Advanced troubleshooting ..................................................................................................................... 89 13. Troubleshooting BGP ................................................................................................................................. 93 13.1. BGP process ........................................................................................................................................... 93 13.2. Advance Troubleshooting ...................................................................................................................... 97 14. Troubleshooting IP Multicast Switching (IPMS) ..................................................................................... 99 14.1. Introduction ............................................................................................................................................ 99 14.2. Basic troubleshooting .......................................................................................................................... 106 14.3. Advanced troubleshooting ................................................................................................................... 109 14.4. Troubleshooting in the Maintenance Shell .......................................................................................... 110 14.5. Troubleshooting in bShell .................................................................................................................... 111 15. Troubleshooting IP Multicast Routing (IPMR) ..................................................................................... 113 15.1. Introduction .......................................................................................................................................... 113 15.2. Minimum working configuration ......................................................................................................... 113 15.3. Basic Troubleshooting ......................................................................................................................... 114 15.4. Advanced Troubleshooting .................................................................................................................. 115 15.5. Troubleshooting in bShell .................................................................................................................... 115 16. Troubleshooting 802.1X ........................................................................................................................... 116 17. Troubleshooting Universal Network Profiles (UNP) ............................................................................. 118 17.1. Troubleshooting in bShell .................................................................................................................... 118 18. Troubleshooting SNMP ............................................................................................................................ 120 18.1. Troubleshooting SNMP on OmniSwitch OS6900/OS10K/OS6860 series .......................................... 120 18.2. SNMP Security .................................................................................................................................... 124 18.3. SNMP Statistics ................................................................................................................................... 125 19. Troubleshooting Power Over Ethernet ................................................................................................... 127 19.1. Troubleshooting PoE on OmniSwitch on OS6860 and OS6860E ....................................................... 127 20. Troubleshooting Ethernet Ring Protection (ERP) ................................................................................. 130 20.1. Troubleshooting ERP on OmniSwitch ................................................................................................. 130 21. Troubleshooting Shortest Path Bridging (SPB) ..................................................................................... 136 21.1. Troubleshooting SPB on OmniSwitch OS6900/OS10K/OS6860 series ............................................. 136 21.2. SPB debug information ........................................................................................................................ 138 21.3. Advanced Troubleshooting Scenarios ................................................................................................. 139 21.4. bShell Troubleshooting ........................................................................................................................ 140 22. Troubleshooting sFlow ............................................................................................................................. 141 22.1. sFLOW Debug ..................................................................................................................................... 142 23. Troubleshooting Port Mirroring and Port Monitoring ......................................................................... 143 23.1. Troubleshooting Port Mirroring ........................................................................................................... 143 23.2. Troubleshooting port monitoring ......................................................................................................... 144 24. Troubleshooting IPV6 .............................................................................................................................. 146 24.1. IPv6 Routing ........................................................................................................................................ 146 24.2. Troubleshooting DHCPv6 Relay ......................................................................................................... 147 24.3. Troubleshooting a 6to4 Tunnel ............................................................................................................ 148 [/code] [Hidden Content]