HP Cluster Platform, Introduction Manual

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Table 2-5 ProCurve 2848 LED Identification (continued)
Meaning State Description Item
Link = Indicates that the port LEDs are displaying link information. If the
port LED is on, the port is enabled and receiving a link indication from
the connected device. If the port LED is off, the port has no active network
cable connected, or is not receiving link beat or sufficient light. Otherwise,
the port may have been disabled through the switch console, or the Web
browser interface. If the port LED is blinking* simultaneously with the
Fault LED, the corresponding port has failed its self-test.
Act = Indicates that the port LEDs are displaying network activity
information.
FDx = Indicates that the port LEDs are lit for ports that are in full-duplex
mode. Off indicates half-duplex.
Spd = Indicates that the port LEDs are displaying the connection speed at
which each port is operating. If the port LED is off, the port is operating
at 10 Mb/s. If the port LED is flashing**, the port is operating at 100 Mb/s,
and if the port LED is on continuously, the port is operating at 1000 Mb/s.
4 green
LEDs LED Mode
view 6
Displays port link information, network activity information, whether the
port is configured for full-duplex operation, or the speed of the connection,
depending on the LED Mode view selected. Green —
overlaid
with the
port number Port LEDs 7
For the dual-personality ports, indicates which connector is enabled:
T = Indicates the 10/100/1000Base-T RJ-45 port is enabled.
M = Indicates the mini-GBIC port is enabled.
Green —
ports 21 to
24 or 45 to
48 only T/M 8
* The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
**The flashing behavior is an on/off cycle once every 0.5 seconds, approximately.
The HP ProCurve 2848 switch uses a single LED for each port. The operation of this LED is
controlled by the LED Mode select button, and the current setting is indicated by the LED Mode
indicator LEDs near the button. Press the button to step from one view mode to the next. The
LED Mode button has the following indicator lights:
•
If the Link (Lnk) indicator LED is lit, each port LED displays link information for the
associated port. If the port LED is in Link mode and it is blinking, the port has failed its self
test. The Fault and Test LEDs will be blinking simultaneously.
• If the Activity (Act) indicator LED is lit, each port LED displays activity information for the
associated port — it flickers as network traffic is received and transmitted through the port.
• If the Full Duplex (FDx) indicator LED is lit, the port LEDs light for those ports that are
operating in full duplex mode.
• If the Speed (Spd) indicator LED is lit, the port LEDs behave as follows to indicate the
connection speed for the port:
— OFF = 10 Mb/s
— Flashing = 100 Mb/s (the flashing behavior is a repeated on/off cycle once every 0.5 sec.)
— ON = 1000 Mb/s
2.6.5.1 Reset Button
The Reset button is used to reset the switch while it is turned on. This action clears any temporary
error conditions that may have occurred and executes the switch self-test.
2.6.5.2 Clear Button
The Clear button is used for the following purposes:
•
Deleting Passwords — When pressed by itself for at least 1 second, the button deletes any
switch console access passwords that you may have configured. Use this feature if you have
44 Platform Core Components