Alcatel-Lucent OmniSwitch 10K - Table of Contents

OmniSwitch OS6860/OS6900/OS10K Troubleshooting Guide Part No.032996-00 Rev.A
AOS Release 7.X and 8.X January 2015
Alcatel-Lucent Page 2 of 148
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