Alcatel OmniSwitch 6624 Troubleshooting Manual page 12

Roma ............................................................................................................................ A-22
Chassis Management Module (CMM) ......................................................................... A-26
Packet Walk ................................................................................................................. A-34
Specific Packet Flows .................................................................................................. A-35
Unknown Destination ................................................................................................... A-36
Hardware Buses on OmniSwitch 7700/7800/8800 Switches ....................................... A-41
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Calendar Manager Module .................................................................................... A-19
Data Port Output Module ...................................................................................... A-19
Nantucket Redundancy ......................................................................................... A-19
Functional Description .......................................................................................... A-23
Initialization .................................................................................................... A-24
NI Slot Insertion ............................................................................................. A-25
Setup Calendars and Flow Control for New NI ............................................. A-25
NI Slot Extraction ........................................................................................... A-25
CMM Takeover and Hot Swap ............................................................................. A-25
Framing Error ........................................................................................................ A-26
OS7000 CMM ....................................................................................................... A-27
OS8800 CMM ....................................................................................................... A-27
Functional Description of CMM ........................................................................... A-28
CMM Software Startup Process ..................................................................... A-28
AOS ................................................................................................................ A-29
MiniBoot ........................................................................................................ A-30
AOS Start ........................................................................................................ A-30
Chassis Manager Component of System Services ................................................ A-30
CMM Reload of NI Module .................................................................................. A-30
Overall System Architecture ................................................................................. A-32
Packet Walk Principles .......................................................................................... A-34
Data Flow Overview ............................................................................................. A-34
Unknown L2 Source, Known L2 Destination ....................................................... A-35
The Catalina ASIC ......................................................................................... A-35
The Coronado ASIC ....................................................................................... A-35
The Nantucket ASIC ...................................................................................... A-35
The Coronado ASIC ....................................................................................... A-35
The Catalina ASIC ......................................................................................... A-35
Known L2 Source, Unknown L2 Destination ....................................................... A-36
The Catalina ASIC ......................................................................................... A-36
The Coronado ASIC ....................................................................................... A-36
The Nantucket ASIC ...................................................................................... A-36
The Coronado ASIC ....................................................................................... A-37
The Catalina ASIC ......................................................................................... A-37
Traffic is Being Passed; the Switch is Attempting to Put a Correct L2 DA
Entry on the NI ..................................................................................................... A-37
The Coronado ASIC ....................................................................................... A-37
Unknown L3 DA ................................................................................................... A-38
The Coronado ASIC ....................................................................................... A-38
Xybus .................................................................................................................... A-41
Fbus ....................................................................................................................... A-41
Bbus ....................................................................................................................... A-41
OmniSwitch Troubleshooting Guide September 2005