Checking the optical port receive rate of an H3C switch

You can check the optical port receive rate on an H3C switch using the show interface and show transceiver diagnosis commands to view traffic statistics and real-time receive power.Using Interface CommandsView interface status and statistics: Run the command show interface This displays the interface rate, link state, and traffic statistics including input and output rates, total packets, and errors . For example, the output may show the last 300-second input rate in packets/sec and bytes/sec, which reflects the receive rate of the port .Check all interfaces: If you are unsure of the interface type or number, use show interface brief to list all interfaces and their status, then select the correct interface for detailed monitoring .Using Digital Diagnostic Monitoring (DDM)View optical module diagnostics: Run show transceiver diagnosis interface This command provides real-time metrics such as receive optical power (RX Power), transmit power (TX Power), temperature, voltage, and bias current .Interpret RX Power: The RX Power field indicates the current receive power of the optical module in dBm. Monitoring this value helps verify that the optical signal is within normal operating thresholds .Verbose output: Some H3C switches support a verbose parameter to display detailed receive and transmit power information: show transceiver diagnosis interface verbose This is useful for troubleshooting low signal or link degradation issues .Additional TipsEnsure the interface is UP; otherwise, the receive rate may show zero or invalid values .Compare the RX Power against the high and low threshold values provided in the DDM output to confirm normal operation .For ongoing monitoring, you can periodically run these commands or use network management software that supports SNMP polling of optical module metrics.By combining interface statistics and DDM diagnostics, you can accurately monitor the optical port receive rate and overall health of the optical link on an H3C switch.