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OmniSwitch Troubleshooting Guide September 2005 xi
Chapter 19 Troubleshooting 802.1X .........................................................................................19-1
In This Chapter ..............................................................................................................19-1
Troubleshooting with the CLI .......................................................................................19-2
Troubleshooting Using Debug CLI ...............................................................................19-4
Dshell Troubleshooting .................................................................................................19-7
Appendix A OS6600/OS7700/OS8800 Architecture Overview ............................................A-1
In This Chapter ...............................................................................................................A-1
The MAC ASIC .............................................................................................................A-2
Catalina ....................................................................................................................A-2
Firenze .....................................................................................................................A-4
The Coronado ASIC ................................................................................................A-5
Functional Description ............................................................................................A-6
Coronado: The “Brain” of the System ..............................................................A-7
Coronado Specifications ...................................................................................A-7
Software Module Interaction ............................................................................A-8
Queue Driver Interaction ................................................................................................A-8
Ethernet Driver ........................................................................................................A-8
Queue Dispatcher ....................................................................................................A-8
NI Supervision .........................................................................................................A-9
Source Learning ......................................................................................................A-9
L3 Manager/IPMS ...................................................................................................A-9
QoS Manager ...........................................................................................................A-9
Destination MAC Learning ..............................................................................A-9
L3 Pseudo CAM Learning ................................................................................A-9
QoS Policy Change ...........................................................................................A-9
QoS Policy Deleted ........................................................................................A-10
L2 destination MAC Aged/Deleted ................................................................A-10
L3 PseudoCAM Entry Aged/Deleted .............................................................A-10
Request to Free Queues Sent to QoS Manager ..............................................A-10
Link Goes Up/Down .......................................................................................A-10
Link Aggregation .........................................................................................................A-11
Coronado Tables ..........................................................................................................A-11
Layer 2 Tables .......................................................................................................A-11
Layer 3 Tables .......................................................................................................A-11
Source Learning ...........................................................................................................A-12
Hardware Routing Engine (HRE) ................................................................................A-13
QoS/Policy Manager ....................................................................................................A-15
Coronado Egress Logic ................................................................................................A-15
The Fabric Architecture ...............................................................................................A-16
Nantucket ASIC ...........................................................................................................A-17
Additional Nantucket Specifications .....................................................................A-17
Functional Description: ..................................................................................A-18
Data Flow .......................................................................................................A-18