1-11Enabling the System to Test Connected CableYou can enable the system to test the cable connected to a specific port. The test result will be returnedin five minutes. The system can test these attributes of the cable: Receive and transmit directions (RXand TX), short circuit/open circuit or not, the length of the faulty cable.Follow these steps to enable the system to test connected cables:To do… Use the command… RemarksEnter system view system-view —Enter Ethernet port view interface interface-type interface-number —Enable the system to testconnected cables virtual-cable-test Requiredz Optical port (including Combo optical port) does not support VCT (virtual-cable-test) function.z Combo electrical port supports VCT function only when it is in UP condition (using undo shutdowncommand), normal Ethernet electrical port always supports this function.Configuring the Interval to Perform Statistical Analysis on Port TrafficBy performing the following configuration, you can set the interval to perform statistical analysis on thetraffic of a port.When you use the display interface interface-type interface-number command to display theinformation of a port, the system performs statistical analysis on the traffic flow passing through the portduring the specified interval and displays the average rates in the interval. For example, if you set thisinterval to 100 seconds, the displayed information is as follows:Last 100 seconds input: 0 packets/sec 0 bytes/secLast 100 seconds output: 0 packets/sec 0 bytes/secFollow these steps to set the interval to perform statistical analysis on port traffic:To do… Use the command… RemarksEnter system view system-view —Enter Ethernet port view interface interface-typeinterface-number —Set the interval to performstatistical analysis on port traffic flow-interval intervalOptionalBy default, this interval is 300seconds.
