McDATA 4Gb SAN Switch for HP p-Class BladeSystem User Guide (AA-RW20B-TE, December 2005)

82 Managing switches
Advanced switch properties
The Advanced Switch Properties dialog enables you to set the timeout values and interop mode settings.
The Advanced Switch Properties dialog is available for only the entry switch, because an in-band switch
can not be taken offline. The switch will automatically be taken offline temporarily and will be restored to
its original state after the changes are completed. Select Switch > Advanced Switch Properties to open the
Advanced Switch Properties dialog. Click OK after making any changes to put the new values into effect.
The default interop mode is Standard.
Figure 38 Advanced Switch Properties dialog
Timeout values
The switch timeout values determine the timeout values for all ports on the switch. Table 13 describes 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. Therefore, the switch must be offline to change these values. Use the Switch Properties dialog to
take the switch offline.
Interop mode for zoning
The interop mode permits interoperation with FC-SW-2 compliant and McDATA switches in McDATA Fabric
Mode. The default interop mode is Standard.
• Use the Standard option to connect to FC-SW-2 compliant switches and McDATA switches in Open
Fabric Mode.
• Use the McDATA Fabric Mode option to connect to McDATA switches in McDATA Fabric Mode.
Table 13 Timeout values
Parameter Description
R_A_TOV Resource Allocation Timeout—Represents the maximum time a frame
could be delayed in the Fabric and still be delivered. The default is
10000 milliseconds.
E_D_TOV Error Detect Timeout—Represents the maximum round trip time that an
operation between two N_Ports could require. The default is 2000
milliseconds.