Deployment Guide

Available buffer credit calculation
The FC Port Configuration wizard provides non-editable Recommended Buffer and Remaining
Buffer fields to check the available buffer credit for a port.
Recommended Buffer
The number of recommended buffers. The recommended buffer is calculated based on the following
values:
• Speed (not based on auto-negotiate speed)
• Frame size
• Desired distance (km)
Remaining Buffer
The number of remaining buffers. If the configured port buffer exceeds the remaining buffer, then an
error message displays.
Assigning a name to a port
Port names are optional. You can assign a name to an FC or FCIP port to make port grouping easier.
You can also rename FC and FCIP ports. You cannot rename GbE ports. The Port Name column in the
General tab displays the default port name.
Port names can be from 1 through 128 alphanumeric characters, unless FICON Management Server
(FMS) mode is enabled. If FMS mode is enabled, port names should be limited from 1 through 24
alphanumeric characters. The comma (,), semicolon (;), and "at" symbol (@) are not allowed.
NOTE
Duplicate port names are not allowed in FMS mode.
To assign a name to a port, perform the following steps.
1. Click a port in the Switch View to open the Port Admin tab.
2. Select the FC Ports tab.
3. From the tree on the left, select the switch or slot that contains the port you want to rename.
4. From the table, select a port or multiple ports you want to rename.
5. Select Rename from the Actions list.
The Rename dialog box displays the selected port details.
6. Edit the names in the Port Name column and click OK.
Port beaconing
Individual FC ports can be set to beacon using the Port Admin tab. Port beaconing status displays in
the Port Beaconing column. The Switch View reflects the port beaconing status by flashing the port
amber and green for 2.5 seconds each, in an alternating pattern.
Available buffer credit calculation
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