17
ProCurve Switch vl Modules
Installing the Modules
Verifying the Network Connections Are Working
Check the port LEDs for the newly-installed module to ensure that the port(s)
connected in the preceding step are operating correctly. Each port on the
switch modules has Link and Mode LEDs near it as shown in the next
illustration.
Figure 12. Checking Link and Mode LEDs
■ The Link LED will be lit for each port that is connected properly to an
active network device.
If the Link LED does not go on when an active network cable is connected
to the port, there may be something wrong with the cable, the cable
connectors, the device at the other end of the cable, or the device may be
powered off. See the troubleshooting information on page 21.
■ If the switch Mode is set to display activity (the Act mode indicator LED
is lit), then the Mode LED for each port that is transmitting and/or
receiving packets will flicker when traffic is detected on the port.
■ If the Mode is set to display full duplex (the FDx mode indicator LED is
lit), then the Mode LED will be lit for each port that is operating in full
duplex.
■ If the Mode is set to display link speed operation (the Spd mode indicator
LED is lit), then the port Mode LEDs behave as follows to indicate the
connection speed for the port:
• Off = 10 Mbps
• Flashing = 100 Mbps
• On = 1000 Mbps
■ If the Mode is set to display packet errors on the port (the ! mode indicator
LED is lit), then the Mode LED will flash briefly for each packet that has
any of six errors, including CRC errors and late collisions.
Link and Mode LEDs
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