HP StorageWorks 8/20q and SN6000 Fibre Channel Switch Enterprise Fabric Management Suite User Guide 137
Port speeds
SFP ports with 8Gb SFPs installed can transmit and receive at 2-Gb/s, 4-Gb/s, or 8-Gb/s. XPAK ports can
transmit and receive at 10-Gb/s or 20-Gb/s. All ports can be configured for either a fixed transmission
speed or to sense (auto-detect) the transmission speed of the device to which it is connected.
To display the port type status:
1. Select a switch or stack in the fabric tree.
2. Select View > View Port Speeds.
NOTE: 8-Gb/s SFPs do not support the 1-Gb/s speed. Setting a port to 1-Gb/s that has an 8-Gb/s SFP
installed will down the port.
To change the port transmission speed:
1. Select a switch in the fabric tree.
2. Select one or more ports in the faceplate display.
3. Select Port > Port Properties to open the Port Properties dialog box.
4. For each port, select an option from the drop-down list in the Configured Speed column. To apply the
same value for all selected ports, check the Configured Speed checkbox at the bottom of the dialog
box. Table 35 lists the possible port speeds.
5. Click OK to write the new port speed to the switch.
Table 34 Port administrative states
State Description
Online Activates and prepares port to send data.
Offline Prevents port from receiving signal and accepting a device login.
Diagnostics Prepares port for testing and prevents the port from accepting a
device login.
Downed Disables the port.
Table 35 Port speeds
State Description
Auto-Detect Matches the transmission speed of the connected device. This is the default for SFPs.
1 Gb/s Fixed 1-Gb/s transmission speed
2 Gb/s Fixed 2-Gb/s transmission speed
4 Gb/s Fixed 4-Gb/s transmission speed
8 Gb/s Fixed 8-Gb/s transmission speed
10 Gb/s Fixed 10-Gb/s transmission speed
20 Gb/s Fixed 20-Gb/s transmission speed. Requires the HP StorageWorks SN6000
Stackable 20Gb ISL Upgrade LTU feature license key.
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