SFP module doesn't support DDMI - Zyxel RGS200-12P

scerazy

By default DDMI is disabled

So enable it:

CLI:
Enable DDMI:
#configure terminal
(config)#ddmi
(config)#ex

====================

sh interface GigabitEthernet 1/9 transceiver

GigabitEthernet 1/9

Transceiver Information

Vendor : AVAGO
Part Number : ABCU-5740RZ-HP8
Serial Number : CN64G2C152
Revision :
Date Code : 2016-04-14
Transceiver : 1000BASE_T

DDMI Information
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
Tx: transmit, Rx: receive, mA: milliamperes, dBm: decibel-milliwatts.

% SFP module doesn't support DDMI

sh interface GigabitEthernet 1/11 transceiver

GigabitEthernet 1/11

Transceiver Information

Vendor : AVAGO
Part Number : AFBR-5710PZ
Serial Number : AM151326680
Revision :
Date Code : 2015-03-31
Transceiver : 1000BASE_SX

DDMI Information
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
Tx: transmit, Rx: receive, mA: milliamperes, dBm: decibel-milliwatts.

% SFP module doesn't support DDMI

Any idea why?

Zyxel_Melen

Hi @scerazy

Copper transceiver normally not support ddmi info. But the fiber transceiver doesn't support DDMI could be because the vendor doesn't provide the ddmi info to the switch.

In addition, ZYXEL switch products are recommended to be used exclusively with ZYXEL brand modules to ensure optimal performance and reliability. Using modules from third-party sources can potentially lead to decreased network performance and reliability, such as packet loss and connectivity issues, which also cannot be guaranteed by ZYXEL. ZYXEL may not offer technical support for networking issues that are identified as being caused by IOP with third-party modules.

Here is the result when using Zyxel fiber transceiver:

show interface GigabitEthernet 1/9 transceiver

GigabitEthernet 1/9

Transceiver Information

Vendor : ZYXEL
Part Number : SFP-LX-10-E
Serial Number : S243Q27401301
Revision : J1.0
Date Code : 2024-07-03
Transceiver : 1000BASE_LX

DDMI Information
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
Tx: transmit, Rx: receive, mA: milliamperes, dBm: decibel-milliwatts.

          current   High Alarm   High Warn    Low Warn      Low Alarm

                     Threshold    Threshold    Threshold     Threshold

Temperature(C) 30.965 95.000 85.000 -40.000 -50.000
Voltage(V) 3.2783 3.5000 3.4500 3.1500 3.0900
Tx Bias(mA) 18.312 90.000 80.000 2.000 1.000
Tx Power(dBm) -5.20 -2.00 -3.00 -9.00 -10.00
Rx Power(dBm) -40.00 -- -2.00 -3.00 -20.00 -21.02

Zyxel_Melen

Seems like AVAGO AFBR-5710PZ doesn't support DDMI.