Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

3–Fabric Manager Configuration
Configuring the QLogic Fabric Manager
Table 3-16. Sm Fabric Sweep Parameters
Parameter
Default
Value
Description
SweepInterval 300 The SM sweeps immediately upon fabric
changes based on traps from the switches. Since
traps can be lost, the SM also has a slow periodic
sweep at a maximum of SweepInterval seconds
to verify fabric config.
IgnoreTraps 0 Do not sweep or log when traps occur when
enabled (1)
MaxAttempts
RespTimeout
MinRespTimeout
SweepErrorsThreshold
SweepAbandonThreshold
3
250
35
0
3
The SM will spend up to RespTimeout multiplied
by MaxAttempts per packet. These allow
two modes of operation.
When MinRespTimeout is non-zero: the SM
will start with MinRespTimeout as the time-out
value for requests and use multiples of this value
for subsequent attempts if there is a time-out in
the previous attempt. SM will keep retrying until
the cumulative sum of time-outs for retries is less
than RespTimeout multiplied by MaxAttempts.
This approach is recommended and
will react quickly to lost packets while still allowing
adequate time for slower SMAs to respond.
When MinRespTimeout is zero: upon a
time-out, up to MaxAttempts are attempted
with each attempt having a time-out of Resp-
Timeout. This approach is provided for backward
compatibility with previous SM versions.
When there are a large number of fabric changes
at once, the SM could have lots of errors while
attempting to access/program devices which disappeared
mid-sweep. If the SM receives more
than the set SweepErrorsThreshold parameter of
errors in a given sweep, it will give up and start
the sweep over. When the SM abandons more
than the set SweepAbandonThreshold parameter
of sweeps in a row the SM will do its best to
complete the sweep.
TrapThreshold 0 If a given port issues more than the Trap-
Threshold traps/minute value it will be disabled
as an unstable port. 0 disables this feature.
IB0054608-01 B 3-45