Specifications

Table Of Contents
Fabric OS Commands
152 Fabric OS Version 3.1.x/4.1.x Reference Guide
Descriptions of the switch fabric setting fields are as follows:
VC Encoded Address Mode 00 or 1
Core Switch PID Format
(V3.1.x only)
00 or 1
Per-frame Route Priority 00 or 1
Long Distance Fabric 00 or 1
Domain The domain number uniquely identifies the switch in a
fabric. This value is automatically assigned by the fabric.
The range of valid values varies depending on the switch
model and other system parameter settings (
see
VC
Encoded Address Mode).
BB Credit The buffer-to-buffer (BB) credit represents the number of
buffers available to attached devices for frame receipt. The
range of allowed values varies depending on other system
settings.
R_A_TOV The Resource Allocation Time Out Value (R_A_TOV) is
displayed 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.
E_D_TOV Error Detect Time Out Value (E_D_TOV) is displayed in
milliseconds. This timer is used to flag a potential error
condition when an expected response is not received (an
acknowledgment or reply in response to packet receipt,
for example) within the set time limit. If the time for an
expected response exceeds the set value, then an error
condition occurs.
Data Field Size The data field size specifies the largest possible value, in
bytes, and advertises this value to other switches in the
fabric during construction of the fabric as well as to other
devices when they connect to the fabric. Setting this to a
value smaller than 2112 may result in decreased
performance.
Table 2: Configure Command Fabric Parameters (Continued)
Field Default Range