HP (Hewlett-Packard) A7540-96010 ユーザーズマニュアル
Introduction
17
Fibre Channel ports and LEDs
The switch has eight Fibre Channel ports, numbered 0–7. (
)
Each Fibre Channel port is served by a 2 Gbps Small Form-Factor Pluggable (SFP) optical
transceiver. SFPs are hot-pluggable. User ports self-discover both the port type and
transmission speed of the connected devices. The Fibre Channel port LEDs are located above
their respective ports and provide port log-in and activity status information.
transceiver. SFPs are hot-pluggable. User ports self-discover both the port type and
transmission speed of the connected devices. The Fibre Channel port LEDs are located above
their respective ports and provide port log-in and activity status information.
Figure 4: Fibre Channel port and LED locations
Port Logged-in LED (green)
The Logged-in LED indicates the logged-in or initialization status of the connected devices.
After successful completion of the POST, the switch extinguishes all Logged-in LEDs.
Following a successful loop initialization or port login, the switch illuminates the
corresponding logged-in LED. This shows that the port is properly connected and able to
communicate with its attached devices. The Logged-in LED remains illuminated as long as the
port is initialized or logged in. If the port connection is broken or an error occurs that disables
the port, the Logged-in LED flashes. See “
After successful completion of the POST, the switch extinguishes all Logged-in LEDs.
Following a successful loop initialization or port login, the switch illuminates the
corresponding logged-in LED. This shows that the port is properly connected and able to
communicate with its attached devices. The Logged-in LED remains illuminated as long as the
port is initialized or logged in. If the port connection is broken or an error occurs that disables
the port, the Logged-in LED flashes. See “
information.
Port Activity LED (green)
The Activity LED indicates that data is passing through the port. Each frame that the port
transmits or receives causes this LED to illuminate for 50 milliseconds. This makes it possible
to observe the transmission of a single frame. When extending credits, the Activity LED for a
donor port will reflect the traffic of the recipient port. See “
transmits or receives causes this LED to illuminate for 50 milliseconds. This makes it possible
to observe the transmission of a single frame. When extending credits, the Activity LED for a
donor port will reflect the traffic of the recipient port. See “
” on page 24 for more
information about extended credits and donor ports.
1
Port Logged-in LED (green)
2
Port Activity LED (green)
3
Fibre Channel port
1
2
3