show ports transceiver information

show ports {port_list | tag tag} transceiver information

Description

Displays basic information about the optical transceiver.

Syntax Description

port_list

Specifies the port number(s).

tag

Specifies an 802.1Q or 802.1ad tag value.

Default

N/A.

Usage Guidelines

Digital Diagnostic Monitoring Interface (DDMI) provides critical system information about the installed optical modules. Use this command to monitor the condition of XFP, SFP, and SFP+ optical transceiver modules.

The tag value may be associated with either a VMAN or a VLAN.

If you try to execute this command on one of the ports in the port list that is non-compliant with DDMI, the following error message is displayed and the command does not go through:

Port 3:1 This command is not supported on this port. All ports and transceiver of the ports requested in the command need to support DDMI.

If you try to execute this command on one of the ports in the port list on which the transceiver is non-compliant with DDMI, the following error message is displayed:

Port 3:1 This media/transceiver does not support enhanced digital diagnostic monitoring interface (DDMI). All ports and transceiver of the ports requested in the command need to support DDMI.

For more detailed information, use the show ports transceiver information detail command.

Example

The following display shows output for port 1:1-2 on a BlackDiamond 8810 switch:

BD-8810.2 # sh port 1:1-2 transceiver information
Port      Temp    TxPower  RxPower  TxBiasCurrent  Voltage-Aux1  Voltage-Aux2
(Celcius)   (dBm)    (dBm)     (mA)         (Volts)       (Volts)
================================================================================
1:1      30.60     -25.20   -18.70    0.40          5.09          5.07
1:2      30.60     -25.20   -18.70    0.40          5.09          N/A
================================================================================
N/A indicates that the parameter is not applicable
to the optics connected to the port

The following display shows output for port 25:

# sh ports 25 transceiver information
Port      Temp 							TxPower 			RxPower 			TxBiasCurrent 	Voltage-Aux1 	Voltage-Aux2
			(Celsius) 				(dBm) 			(dBm) 				(mA) 					(Volts) 												(Volts)
=================================================================================
25 			32.00 				-3.35 			-2.68 				7.67 					3.35 									N/A
=================================================================================
Note

Note

In show ports transceiver information output, the Rx/Tx power values shown may be +/- 3dB from the actual value due to the limitation of SFP and the accuracy depends on SFP vendor. For accurate power measurement, it is recommended to use a power meter.

History

This command was first available in ExtremeXOS 12.4.

Support for the Summit switches was added in ExtremeXOS 12.5.

The tag value was added in ExtremeXOS 12.4.4.

Support for SFP and SFP+ optics was added in ExtremeXOS 12.5.3.

Platform Availability

This command is available on all platforms.