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How to view the port status and optical module information in ARISTA switches

Time: 2024-06-26
      Optical modules work in the switch usually need to read the internal information of the module to understand its working status, such as module connectivity and real-time collection of light, temperature, etc., through the identification of the module information can be detected by the module and the switch's coding compatibility; then how to view the working status of the optical module in the process of use as well as the internal information?
      The following is an example of accessing ARISTA DCS-7160-48YC6-F switch with SFP-10G-LR optical module of Moduletek Limited to show you the specific operation of reading the information of the accessed optical module on ARISTA switch.
Schematic diagram of optical module accessing the switch
Figure 1 Schematic diagram of optical module accessing the switch
 
1. Status of Optical Module
      Execute the command "show interface interface-name status" to view the interface information;
      The information output under this command includes interface rate, duplex mode, module type, module link status, etc. (Status of connected is a prerequisite for the work of optical module).
      Explanation: interface-name is the interface number where the module is located, you can execute the command "show interface status" to view, or determine the interface number according to the switch panel; if you do not know the interface number, you can not enter it, and the information of all interfaces will be output at this time.
Optical module link up status
Figure 2 Optical module link up status
 
       If the type displayed in the above interface status is inconsistent with the actual module type, you can execute the command "show interface interface-name transceiver hardware" to check whether the media type of the interface configuration module is consistent with the actual media type. You can execute the command "show interface interface-name transceiver hardware" to check whether the media type of the interface configuration module is consistent with the actual media type.
Viewing Interface Module Hardware
Figure 3 Viewing Interface Module Hardware
 
      Inconsistency between the interface media type and the actual module type will not cause the module to fail to work directly, but it will affect the accuracy of the module's work. For example, if the interface of a 10G LR module is configured as 10gbase-cr, then the interface module type is displayed as 10GBASE-CR, and there is no current data in the DOM read. You can manually configure the interface module media type by executing the command "transceiver media override type".
      Note: The module media type is usually detected automatically, and the specific commands and configuration options for manual configuration may vary according to different models of switches and OS versions.
Interface Media Type Configuration
Figure 4 Interface Media Type Configuration
 
2. Module identification by the switch
      Execute the command "show inventory" to view the basic information of optical modules on the interface.
      The output content of this command is the hardware accessories accessed on the device, such as power supply, modules, etc., in which the optical module information contains the vendor name, part name, serial number, version number, which is derived from the coded data written by the optical module.
Optical Module Identification
Figure 5 Optical Module Identification
 
      Execute the command "show idprom transceiver extended" to view the EEPROM information of the optical module on the interface.
      The output of this command is the EEPROM of the optical module, including A0h and A2h (for example, SFP), and it is easy for engineers to locate abnormalities in the module by checking the coded content.
Optical module EEPROM identification
Figure 6 Optical module EEPROM identification
 
3. DDM test data of the switch on the module
      Execute the command "show interface interface-name transceiver detail" to view the digital diagnosis of the optical module on the interface.
      The output under this command is real-time data diagnosis and threshold value, which can be used to determine whether the working status of the optical module on the equipment at both ends is normal by whether the real-time data is within the threshold value.
Optical module identification and digital diagnosis
Figure 7 Optical module identification and digital diagnosis
 
      Moduletek Limited can provide ARISTA switch-compatible optical module products, welcome to buy.
      If you have any questions about the above content, you can contact us by Email : web@moduletek.com
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