4 – Managing Switches

0

 

 

Configuring a Switch

 

 

 

 

 

 

 

 

4.7.3.2

Legacy Port Address Format

Legacy Address Format should be enabled only to permit interoperation with certain older non-FC-SW-2 compliant switches. Enabling this setting under other circumstances will disable zoning that is defined by domain ID and port number. This Legacy Address Format option is available only when the Interop_1 setting is enabled on the Advanced Switch Properties dialog. Contact your authorized maintenance provider for assistance in using this feature. Refer to the QLogic Switch Interoperability Guide on the QLogic Web site for a complete discussion of configuring for operation with non-Qlogic Switches.

Note: The Legacy Address Format setting must be the same on all switches in the fabric, otherwise the inter-switch links will not connect.

4.7.3.3

Timeout Values

The switch timeout values determine the timeout values for all ports on the switch. Table 4-5describes the switch timeout parameters. The timeout values must be the same for all switches in the fabric.

Note: Mismatched timeout values will disrupt the fabric. These should not be changed unless absolutely necessary. The switch must be offline to change these values. Use the Switch Properties dialog to take the switch offline.

 

Table 4-5. Timeout Values

 

 

Parameter

Description

 

 

R_A_TOV

Resource Allocation Timeout: The maximum time a frame could be

 

delayed and still be delivered. The default is 10000 milliseconds.

E_D_TOV

Error Detect Timeout: The maximum round trip time that an operation

 

between two N_Ports could require. The default is 2000 milliseconds.

 

 

4-26

59022-11 A

Page 132
Image 132
Q-Logic SANBOX2-16, 59022-11 A 4-13 manual Legacy Port Address Format, Timeout Values