Eng Sadiq ullah’s Post

8 Troubleshooting DWDM network Tips 1 - loopback test Important to locate the faults in WDM to use loopback test We can perform hardware loopback on site And software loopback through software Loopback can be on client side or line side ports Remember to use optical attenuators in hardware loopback to avoid port damage with high power 2 - RESET We can reset the boards with 2 types Warm reset Cold reset Reset can be done using NMS or by removing the board and reinsert it physically or by using the reset button on control card for example Remember that cold reset will affect the service 3- checking current and historical alarms Note that current alarms is the alarms still raised Historical alarms is alarms raised and cleared 4- checking performance monitoring logs For checking counters like bit errors , availability and power levels on boards and OSNR 5- use OTDR For fault locating and attenuation / power calculation and traces 6- use Spectrum analyzer and power meter For optical power analysis 7- checking board indicators Boards inside the cabinet have indicators to indicate the board hardware status , service status , software status 8- checking finer cables status , attenuation levels , connectors , splice points loss , SFP modules status Now you can master Optical Transmission by the latest Training version Contact me for Transmission Training details or if support needed

8 Troubleshooting DWDM network Tips 1 - loopback test Important to locate the faults in WDM to use loopback test We can perform hardware loopback on site And software loopback through software Loopback can be on client side or line side ports Remember to use optical attenuators in hardware loopback to avoid port damage with high power 2 - RESET We can reset the boards with 2 types Warm reset Cold reset Reset can be done using NMS or by removing the board and reinsert it physically or by using the reset button on control card for example Remember that cold reset will affect the service 3- checking current and historical alarms Note that current alarms is the alarms still raised Historical alarms is alarms raised and cleared 4- checking performance monitoring logs For checking counters like bit errors , availability and power levels on boards and OSNR 5- use OTDR For fault locating and attenuation / power calculation and traces 6- use Spectrum analyzer and power meter For optical power analysis 7- checking board indicators Boards inside the cabinet have indicators to indicate the board hardware status , service status , software status 8- checking finer cables status , attenuation levels , connectors , splice points loss , SFP modules status

📌 Quick troubleshooting methods for your microwave Link? Here you go!   📍 Out of Frame (OOF): Indicates that the receiving equipment cannot detect the frame alignment. Caused by equipment synchronization issues, transmission errors, or hardware malfunctions. 👇 Troubleshooting: Check synchronization settings, inspect hardware connections, and ensure proper alignment of microwave antennas. 📍 Loss of Frame (LOF): LOF occurs when the receiving equipment loses synchronization with the framing pattern of the transmitted signal. Causes: Similar to OOF, LOF can be caused by synchronization problems, transmission errors, or faulty equipment. 👇 Troubleshooting: Verify synchronization settings, check for interference, and inspect equipment for faults. 📍 Loss of Signal (LOS): Indicates that the receiving equipment has lost the incoming signal. Causes: Physical obstructions, equipment failure, or misalignment of antennas. 👇 Troubleshooting: Inspect antennas for alignment issues, clear any obstructions, and check equipment status indicators. 📍 Remote Defect Indication (RDI): An indication sent by the remote end of the link, indicating a problem with the transmitted signal. Causes: Transmission errors, signal degradation, or equipment malfunctions can trigger RDI alarms. 👇 Troubleshooting: Investigate potential causes of signal degradation, and inspect hardware for faults, and monitor performance metrics. 📍 Alarm Indication Signal (AIS): A signal generated by the receiving equipment to indicate a problem with the incoming signal. Causes: Triggered by LOS, LOF, or other signal integrity issues. 👇 Troubleshooting: Identify the root cause of the signal problem, verify equipment configurations, and troubleshoot transmission paths. 📍 Bit Error Rate (BER): Can be influenced by noise, interference, signal attenuation, or transmission impairments. 👇 Troubleshooting: Optimize signal quality, reduce interference, and implement error correction techniques to minimize BER. Warm restart, Cold restart, IF loop, RF loop, Software upgrade or downgrade, hardware replacement, Interference test, etc etc. #telecommunication #microwave #Troubleshooting

📌 Quick troubleshooting methods for your microwave Link. Here you go! 📍 Out of Frame (OOF): Indicates that the receiving equipment cannot detect the frame alignment. Caused by equipment synchronization issues, transmission errors, or hardware malfunctions. 👇 Troubleshooting: Check synchronization settings, inspect hardware connections, and ensure proper alignment of microwave antennas. 📍 Loss of Frame (LOF): LOF occurs when the receiving equipment loses synchronization with the framing pattern of the transmitted signal. Causes: Similar to OOF, LOF can be caused by synchronization problems, transmission errors, or faulty equipment. 👇 Troubleshooting: Verify synchronization settings, check for interference, and inspect equipment for faults. 📍 Loss of Signal (LOS): Indicates that the receiving equipment has lost the incoming signal. Causes: Physical obstructions, equipment failure, or misalignment of antennas. 👇 Troubleshooting: Inspect antennas for alignment issues, clear any obstructions, and check equipment status indicators. 📍 Remote Defect Indication (RDI): An indication sent by the remote end of the link, indicating a problem with the transmitted signal. Causes: Transmission errors, signal degradation, or equipment malfunctions can trigger RDI alarms. 👇 Troubleshooting: Investigate potential causes of signal degradation, and inspect hardware for faults, and monitor performance metrics. 📍 Alarm Indication Signal (AIS): A signal generated by the receiving equipment to indicate a problem with the incoming signal. Causes: Triggered by LOS, LOF, or other signal integrity issues. 👇 Troubleshooting: Identify the root cause of the signal problem, verify equipment configurations, and troubleshoot transmission paths. 📍 Bit Error Rate (BER): Can be influenced by noise, interference, signal attenuation, or transmission impairments. 👇 Troubleshooting: Optimize signal quality, reduce interference, and implement error correction techniques to minimize BER. Warm restart, Cold restart, IF loop, RF loop, Software upgrade or downgrade, hardware replacement, Interference test, etc etc. Image Credit: IOSR Journal #telecommunication #microwave #Troubleshooting

Necessary steps before Troubleshooting DWDM Network. 1 - Port loopback test Important to locate the faults in WDM to use loopback test We can perform hardware loopback on site And software loopback through software Loopback can be on client side or line side ports Remember to use optical attenuators in hardware loopback to avoid port damage with high power 2 - Router RESET We can reset the boards with 2 types Warm reset Cold reset Reset can be done using NMS or by removing the board and reinsert it physically or by using the reset button on control card for example Remember that cold reset will affect the service 3- checking Boards current and historical alarms Note that current alarms is the alarms still raised Historical alarms is alarms raised and cleared 4- checking boards performance monitoring logs For checking counters like bit errors , availability and power levels on boards and OSNR 5- use OTDR For fault locating and attenuation / power calculation and traces 6- use Spectrum analyzer and power meter For optical power analysis 7- checking board indicators Boards inside the cabinet have indicators to indicate the board hardware status , service status , software status 8- checking finer cables status , attenuation levels , connectors , splice points loss , SFP modules status Now you can master Optical Transmission.

Necessary steps before Troubleshooting DWDM Network. 1 - Port loopback test Important to locate the faults in WDM to use loopback test We can perform hardware loopback on site And software loopback through software Loopback can be on client side or line side ports Remember to use optical attenuators in hardware loopback to avoid port damage with high power 2 - Router RESET We can reset the boards with 2 types Warm reset Cold reset Reset can be done using NMS or by removing the board and reinsert it physically or by using the reset button on control card for example Remember that cold reset will affect the service 3- checking Boards current and historical alarms Note that current alarms is the alarms still raised Historical alarms is alarms raised and cleared 4- checking boards performance monitoring logs For checking counters like bit errors , availability and power levels on boards and OSNR 5- use OTDR For fault locating and attenuation / power calculation and traces 6- use Spectrum analyzer and power meter For optical power analysis 7- checking board indicators Boards inside the cabinet have indicators to indicate the board hardware status , service status , software status 8- checking finer cables status , attenuation levels , connectors , splice points loss , SFP modules status Now you can master Optical Transmission.

Troubleshooting DWDM (Dense Wavelength Division Multiplexing) issues is a crucial skill.

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Advanced Troubleshooting Tips for DWDM Networks 1. Loopback Testing: ▪ Utilize loopback tests to pinpoint faults in WDM systems. ▪ Perform hardware loopback tests on-site and software loopback tests through software. ▪ Implement loopbacks on client-side or line-side ports. ▪ Use optical attenuators in hardware loopbacks to prevent port damage from high power levels. 2. Reset Procedures: ▪ Reset boards using two methods: warm reset and cold reset. ▪ Conduct resets through the Network Management System (NMS) or by physically removing and reinserting the board. ▪ Cold resets may impact service availability. 3. Monitoring Alarms: ▪ Distinguish between current alarms (active alarms) and historical alarms (previously resolved alarms). 4. Performance Monitoring Logs: ▪ Monitor performance metrics such as bit errors, availability, power levels, and Optical Signal-to-Noise Ratio (OSNR) on boards. 5. Optical Time-Domain Reflectometer (OTDR): ▪ Use OTDR for fault localization, attenuation/power calculations, and tracing. 6. Spectrum Analyzer and Power Meter: ▪ Employ spectrum analyzers and power meters for in-depth optical power analysis. 7. Board Indicators: ▪ Check board indicators within the cabinet to assess hardware, service, and software statuses. 8. Cable and Component Inspection: ▪ Verify cable statuses, attenuation levels, connectors, splice point losses, and SFP module statuses for optimal network performance. #Telecommunications #NetworkInfrastructure #WDMNetworks #OpticalNetworking  #GlobalConnectivity #CapacityPlanning #NetworkDesign #TelecomEngineering #DigitalTransformation #CommunicationTechnology #NetworkingSolutions #TechnologyInnovation #ProfessionalDevelopment #ConnectivityEvolution #LinkedInNetworking

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