Chapter 3 Understanding the LEDs
31
Installing the Passport 1424T Series Layer 3 Switch
LED indications of problems
lists possible problems indicated by the LEDs on the 1424T switch and
suggests corrective action.
Table 3 LED problem indicators
Symptom
Probable cause
Corrective action
Green AC power supply
LED is off.
The switch is not receiving
AC power.
Verify that the AC power cord is fastened
securely at both ends and that power is
available at the AC power outlet.
The Link/Activity LED for a
connected port is off or
does not blink (and you
believe that traffic is
present).
The switch is experiencing a
port connection problem, or
the switch’s link partner is not
autonegotiating properly.
Verify that the cable connections to the link
partner are correct. Verify port configuration
parameters for both ends of the connection.
Move the cable to another port to see whether
the problem occurs on the new port.
The Link/Activity LED blinks
continuously.
There may be a port
configuration error.
Verify port configuration parameters for both
ends of the connection.
No LEDs are lit.
A hardware failure has been
detected.
Disconnect the power cord and then connect
it again.
Summary of Contents for Passport 1424T
Page 8: ...8 316867 A Rev 00 ...
Page 12: ...12 Figures 316867 A Rev 00 ...
Page 14: ...14 Tables 316867 A Rev 00 ...
Page 20: ...20 Chapter 1 Introducing the 1424T switch 316867 A Rev 00 ...
Page 26: ...26 Chapter 2 Unpacking and setting up the switch 316867 A Rev 00 ...
Page 32: ...32 Chapter 3 Understanding the LEDs 316867 A Rev 00 ...