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Installing and Configuring the Director
5. Back up the configuration data when you are finished configuring the switch.
6. Set the director online. For instructions, see
Fabric Parameters
Configure the following parameters as required by your fabric.
BB_Credit
Configure the director to support buffer-to-buffer credit (BB_Credit) from 1
through 60. This is the value used for all ports, except those configured for
extended distance buffering (10-100 km). The default value is 16. For a
description of the buffer-to-buffer credit, refer to the industry specification, Fibre
Channel Physical and Signaling Interface.
R_A_TOV
Configure resource allocation time-out value (R_A_TOV) in tenth-of-a-second
increments. This variable works with the error detect time-out value (E_D_TOV)
variable to control the director's behavior when an error condition occurs.
Resources are allocated to a circuit when errors are detected and are not released
for reuse until the time set by the R_A_TOV value expires. The default value is
100 tenths (10 seconds). Set a value between 10 tenths and 1200 tenths (1 through
120 seconds).
Note:
multi-switch fabric. If the value is not the same on all units, the fabric segments. Also,
the value for R_A_TOV must be greater than the value configured for E_D_TOV.
E_D_TOV
Adjust the E_D_TOV in tenth-of-a-second increments. An error condition occurs
when an expected response is not received within the time limit set by this value.
The default value is 20 tenths (2 seconds). Set a value between 2 tenths through
600 tenths (.2 through 60 seconds).
Note:
fabric. If the value is not the same, the fabric segments.
92
page 85.
Set the same value for R_A_TOV on all directors and edge switches in a
Set the same value for E_D_TOV on all switches and directors in a multi-switch
"Setting the Director
Director 2/64 Installation Guide
Online" on
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