Alcatel Carrier Internetworking Solutions 8800 User Manual

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Using the Log File
Troubleshooting Switched Ethernet Connectivity
page 2-8
OmniSwitch Troubleshooting Guide
September 2005
Using the Log File
If none of the above suggest a reason as to why Ethernet switching is not properly working, look into the 
log file and see if there are any messages that may suggest why switching is not working properly. Use the 
show log swlog command to view the system log file. Look for evidence of a system or interface problem 
around the time the problem began.
-> show log swlog
Displaying file contents for ’swlog2.log’
FILEID: fileName[swlog2.log], endPtr[32]
configSize[64000], currentSize[64000], mode[2]
Displaying file contents for ’swlog1.log’
FILEID: fileName[swlog1.log], endPtr[48903]
configSize[64000], currentSize[64000], mode[1]
Time Stamp               Application    Level   Log Message
------------------------+--------------+-------+--------------------------------
THU DEC 12 08:13:51 2002         SYSTEM    info Switch Logging device ’swlog1.lt
THU DEC 12 08:13:53 2002         SYSTEM    info Switch Logging device ’swlog2.lt
THU DEC 12 08:13:56 2002         SYSTEM    info Switch Logging device ’/dev/cont
THU DEC 12 08:13:56 2002    CSM-CHASSIS    info == CSM == start up
THU DEC 12 08:13:56 2002    CSM-CHASSIS    info == CSM == Activating a new vers
THU DEC 12 08:13:56 2002    CSM-CHASSIS    info == CSM == The working version i
THU DEC 12 08:13:56 2002    CSM-CHASSIS    info == CSM == MONITORING ON
THU DEC 12 08:13:56 2002    CSM-CHASSIS    info == CSM == This CMM is primary
After following the troubleshooting steps via CLI for physical connection, configuration validation, 
system health and source learning, here are the additional commands in dshell to troubleshoot problems 
related connectivity problem:
Checking the 7700/7800 Nantucket Fabric
nanlistB04 
Certified: [Kernel]->nanListB04
No SOP Interrupt: 0
Multicast FIFO Full Interrupt: 0
Multicast Buffer Full Interrupt: 0
Unicast Buffer Full Interrupt: 0
Multicast Dump Interrupt: 0
Unicast Dump Interrupt: 0
Unicast Attempt Count: 8a620
Multicast Attempt Count: acecf
Unicast In Count: 8a627
Multicast In Count: acecf
Unicast Out Count: 8a634
Multicast Out Count: 3600e
Dummy Count: 61578
Total FLength Count: 0
value = 0 = 0x0
Certified: [Kernel]->
The total Flengtlh Count value should be 0 or a small value, a large value indicating that there are frames 
being back up in the fabric queue.