Traffic statistics: Current Rate DeltaInput bytes: 0 0 Bps 0Output bytes: 0 0 Bps 0Input packets: 0 0 pps 0Output packets: 0 0 pps 064B packets: 0 0 pps 0Over 64B packets: 0 0 pps 0Over 127B packets: 0 0 pps 0Over 255B packets: 0 0 pps 0Over 511B packets: 0 0 pps 0Over 1023B packets: 0 0 pps 0Error statistics:Input underruns: 0 0 pps 0Input giants: 0 0 pps 0Input throttles: 0 0 pps 0Input CRC: 0 0 pps 0Input IP checksum: 0 0 pps 0Input overrun: 0 0 pps 0Output underruns: 0 0 pps 0Output throttles: 0 0 pps 0m - Change mode c - Clear screenl - Page up a - Page downT - Increase refresh interval t - Decrease refresh intervalq - QuitqDell#Maintenance Using TDRThe time domain reflectometer (TDR) is supported on all Dell Networking switch/routers.TDR is an assistance tool to resolve link issues that helps detect obvious open or short conditions within any of the four copper pairs.TDR sends a signal onto the physical cable and examines the reflection of the signal that returns. By examining the reflection, TDR isable to indicate whether there is a cable fault (when the cable is broken, becomes unterminated, or if a transceiver is unplugged).TDR is useful for troubleshooting an interface that is not establishing a link; that is, when the link is flapping or not coming up. TDR isnot intended to be used on an interface that is passing traffic. When a TDR test is run on a physical cable, it is important to shutdown the port on the far end of the cable. Otherwise, it may lead to incorrect test results.NOTE: TDR is an intrusive test. Do not run TDR on a link that is up and passing traffic.To test and display TDR results, use the following commands.1. To test for cable faults on the TenGigabitEthernet cable.EXEC Privilege modetdr-cable-test tengigabitethernet slot/portBetween two ports, do not start the test on both ends of the cable.Enable the interface before starting the test.Enable the port to run the test or the test prints an error message.2. Displays TDR test results.EXEC Privilege modeshow tdr tengigabitethernet slot/portInterfaces 297
