7To do… Use the command… RemarksDisplay the enableddebugging functionsdisplay debugging [ interfaceinterface-type interface-number ][ module-name ] [ | { begin |exclude | include }regular-expression ]OptionalAvailable in any viewNOTE:You must configure the debugging, terminal debugging and terminal monitor commands beforeyou can display the detailed debugging information on the terminal. For more information aboutthe terminal debugging and terminal monitor commands, seeNetwork Management andMonitoring Command Reference.Ping and tracert configuration exampleNetwork requirementsAs shown in Figure 4, Device A failed to telnet Device C. Determine whether Device A and Device C canreach each other. If they cannot reach each other, locate the failed nodes in the network.Figure 4 Network diagramConfiguration procedure# Use the ping command to display whether Device A and Device C can reach each other. ping 1.1.2.2PING 1.1.2.2: 56 data bytes, press CTRL_C to breakRequest time outRequest time outRequest time outRequest time outRequest time out--- 1.1.2.2 ping statistics ---5 packet(s) transmitted0 packet(s) received100.00% packet loss# Device A and Device C cannot reach each other. Use the tracert command to determine failed nodes. system-view[DeviceA] ip ttl-expires enable[DeviceA] ip unreachables enable[DeviceA] tracert 1.1.2.2traceroute to 1.1.2.2(1.1.2.2) 30 hops max,40 bytes packet, press CTRL_C to break1 1.1.1.2 14 ms 10 ms 20 ms
