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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show interfaces transceiver
Examples This example shows how to display diagnostic monitoring data for all interfaces with transceivers
installed on the switch:
Switch# show interfaces transceiver
If device is externally calibrated, only calibrated values are printed.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
Optical Optical
Temperature Voltage Current Tx Power Rx Power
Port (Celsius) (Volts) (mA) (dBm) (dBm)
------- ----------- ------- -------- -------- --------
Gi1/1 48.1 3.30 0.0 8.1 ++ N/A
Gi1/2 33.0 3.30 1.8 -10.0 -36.9
Gi2/1 43.7 5.03 50.6 + -16.7 -- N/A
Gi2/2 39.2 5.02 25.7 0.8 N/A
Switch#
Note The value for the Optical Tx Power (in dBm) equals ten times log (Tx Power in mW). If the Tx
Power value is 3 mW, then the Optical Tx Power value equals 10 * log (3), which equals 10 *
.477 or 4.77 dBm. The Optical Rx Power value behaves similarly. If the Tx Power or the Rx
Power is zero, then its dBm value is undefined and is shown as N/A (not applicable).
This example shows how to display detailed diagnostic monitoring data, including calibrated values,
alarm and warning thresholds, A2D readouts, and alarm and warning flags. The A2D readouts are
reported separately in parentheses only if they differ from the calibrated values:
Switch# show interfaces transceiver detail
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
------- ------------------ ---------- --------- --------- ---------
Gi1/1 48.1 100.0 100.0 0.0 0.0
Gi1/2 34.9 100.0 100.0 0.0 0.0
Gi2/1 43.5 70.0 60.0 5.0 0.0
Gi2/2 39.1 70.0 60.0 5.0 0.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
------- --------------- ---------- --------- --------- ---------
Gi1/1 3.30 6.50 6.50 N/A N/A
Gi1/2 3.30 6.50 6.50 N/A N/A
Gi2/1 5.03 5.50 5.25 4.75 4.50
Gi2/2 5.02 5.50 5.25 4.75 4.50
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
------- ----------------- ---------- --------- --------- ---------
Gi1/1 0.0 130.0 130.0 N/A N/A
Gi1/2 1.7 130.0 130.0 N/A N/A
Gi2/1 50.6 + 60.0 40.0 10.0 5.0
Gi2/2 25.8 60.0 40.0 10.0 5.0