Brocade Communications Systems Brocade 8/12c Command Reference Manual page 167

Disable FID Check
Enable 256 Area limit
R_A_TOV
E_D_TOV
WAN_TOV
MAX_HOPS
Fabric OS Command Reference
53-1001764-01
If fabric ID (FID) check is disabled, the fabric ignores the Fabric Identifier
conflict with the neighboring switch during fabric formation. By default, FID
check is enabled. If the fabric detects a FID conflict, it disables the E_Port
with a "Fabric ID conflict" message. This parameter is configurable only if the
switch is Virtual Fabric-aware and Virtual Fabric is enabled on the switch.
The 256 area limit allows the partition to be configured for 8-bit addressing
rather than the default 10-bit addressing. Each port in this partition is given a
unique area represented by the middle 8 bits of the PID. Valid values are:
0 No limit is imposed on the area. This is the default value. The partition is
configured for 10-bit addressing and supports up to 1800 ports
1 The unique area assignments begin at zero regardless of where the port
is physically located. This allows FICON users to make use of high port
count port blades with port indexes greater than 256. However, this
mode is not compatible with domain-index zoning.
2 The unique area assignments are based on the port index. This mode
does not allow FICON users to make use of ports with an index greater
than 256 (high ports of a high port count blade), but this mode is
compatible with domain-index zoning. This parameter is configurable
only if the switch is Virtual Fabric-aware and Virtual Fabric is enabled on
the switch.
The resource allocation time out value specified in milliseconds. This variable
works with the variable E_D_TOV to determine switch actions when
presented with an error condition.
Allocated circuit resources with detected errors are not released until the
time value has expired. If the condition is resolved prior to the time out, the
internal time-out clock resets and waits for the next error condition.
Error detect time out value specified in milliseconds. This timer is used to flag
a potential error condition when an expected response is not received within
the set time limit. If the time for an expected response exceeds the set value,
then an error condition occurs.
Wide area network time out value specified in milliseconds. This timer is the
maximum frame time out value for a WAN, if any, interconnecting the Fibre
Channel islands.
Maximum hops is an integer that denotes the upper limit on the number of
hops a frame might have to traverse to reach any destination port from any
source port across the fabric.
Note that the R_A_TOV, E_D_TOV, WAN_TOV, and MAX_HOPS configuration
parameters are interrelated. Assigning a specific value to one or more of
these parameters can change the range of allowed values that can be
assigned to the other parameters. As a result, you may not be able to set all
the values within the range displayed against each parameter. To reduce
problems, the configuration utility validates the modified parameter values
and prompts you to re-enter some values, if the validation check fails.
2
configure
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