HP StorageWorks Advanced Web Tools 7.4.X Administrator Guide (AA-RVHFC-TE, September 2005)

Advanced Web Tools 7.4.x administrator guide 23
• E_D_TOV: Error detect timeout value in milliseconds. This timer flags 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 is met.
• Data Field Size: This specifies the largest possible value, in bytes, for the size of the data frame. The
switch advertises this value to other switches in the fabric during construction of the fabric and to other
devices when they connect to the fabric.
CAUTION: Setting the data field size to a value less than 2112 might result in decreased performance.
• PID Format specifies the port ID format, which is either Core or Extended Edge.
• WAN_TOV: Wide area network timeout value in milliseconds. This is the maximum frame timeout
value for a WAN interconnecting the Fibre Channel islands. The value can be 0 or from 1000 through
(R_A_TOV / 4).
• MAX_HOP_COUNT: The maximum number of hops a frame might have to take to reach any
destination port from any source port across the fabric. The value ranges from 7 to 19.
• RSCN Transmission Mode: The transmission mode of Registered State Change Notification (RSCN)
Extended Link Service (ELS) to the end devices. Possible values are:
• Single PID per payload
• Multiple PID per payload
•Fabric format only
The MP Router must be disabled before you make any changes to the fabric parameters. You can either
explicitly disable it, or Advanced Web Tools can automatically disable and re-enable it.
Use the following procedure to configure fabric parameters:
1. Access the Switch Manager.
2. Click Administration in the navigation bar.
3. Click the Configure Fabric tab.
The system configuration settings are displayed (see Figure 6).
4. Click Edit.
The Edit Fibre Channel Configuration dialog box opens.
5. Make the fabric configuration changes in the dialog box.
6. Click OK.
If the MP Router is enabled, Advanced Web Tools disables it before changing the fabric parameters
and re-enables it afterward.