Setup Guide

Symptom Frames are being dropped.
Probable cause and recommended action Frames are timing out.
Viewing frames
∙ Connect to the switch and log in using an account with admin
permissions.
∙ Enter the framelog --show command.
Switch message logs
Switch message logs (RAS logs) contain information on events that happen on the switch or in the fabric. This is an effective tool in
understanding what is going on in your fabric or on your switch. RAS logs are independent on director class switches. Weekly review of
the RAS logs is necessary to prevent minor problems from becoming larger issues, or in catching problems at an early stage. There are
two sets of logs. The ipAddrShow command provides the IP addresses of the CP0 and CP1 control processor blades and associated
RAS logs.
The following common problems can occur with or in your system message log.
Symptom Inaccurate information in the system message log.
Probable cause and recommended action In rare instances, events gathered by the Track Change feature can report
inaccurate information to the system message log.
For example, a user enters a correct user name and password, but the
login was rejected because the maximum number of users had been
reached. However, when looking at the system message log, the login was
reported as successful.
If the maximum number of switch users has been reached, the switch still
performs correctly, in that it rejects the login of additional users, even if
they enter the correct user name and password information.
However, in this limited example, the Track Change feature reports this
event inaccurately to the system message log; it appears that the login
was successful. This scenario only occurs when the maximum number of
users has been reached; otherwise, the login information displayed in the
system message log reflects reality.
Refer to the Fabric OS Administrator’s Guide for information regarding
enabling and disabling Track Changes (TC).
Symptom MQ errors are appearing in the switch log.
Probable cause and recommended action An MQ error is a message queue error. Identify an MQ error message by
looking for the two letters MQ followed by a number in the error message:
2004/08/24-10:04:42, [MQ-1004], 218,, ERROR,
ras007, mqRead, queue = raslog-test- string0123456-
raslog, queue I
D = 1, type = 2
MQ errors can result in devices dropping from the switch’s Name Server
or can prevent a switch from joining the fabric. MQ errors are rare and
difficult to troubleshoot; resolve them by working with the switch supplier.
When encountering an MQ error, issue the supportSave command to
capture debug information about the switch; then, forward the
supportSave data to the switch supplier for further investigation.
General Troubleshooting
Brocade Fabric OS Troubleshooting and Diagnostics Guide
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