H3C S3610 Series Operation Manual

Also see for S3610 Series: Configuration Quick start Operation manual Operation manual Command manual

H3C S3610 Series Operation Manual Manual pdf 17 page image

Operation Manual – System Maintaining and DebuggingH3C S3610&S5510 Series Ethernet Switches Chapter 2 System Maintaining and Debugging2-1Chapter 2 System Maintaining and DebuggingWhen maintaining and debugging the system, go to these sections for information youare interested in:z System Maintaining and Debugging Overviewz System Maintaining and Debuggingz System Maintaining Example2.1 System Maintaining and Debugging Overview2.1.1 Introduction to System Maintaining and DebuggingYou can use the ping command and the tracert command to verify the current networkconnectivity.I. The ping commandYou can use the ping command to verify whether a device with a specified address isreachable, and to examine network connectivity.The ping command involves the following steps in its execution:1) The source device sends an ICMP echo request to the destination device.2) If the network is functioning properly, the destination device responds by sendingan ICMP echo reply to the source device after receiving the ICMP echo request.3) If there is network failure, the source device displays timeout or destinationunreachable.4) Display related statistics.Output of the ping command includes:z Information on the destination’s responses towards each ICMP echo request, ifthe source device has received the ICMP echo reply within the timeout time, itdisplays the number of bytes of the echo reply, the message sequence number,Time to Live (TTL), and the response time.z If within the period set by the timeout timer, the destination device has not receivedthe ICMP response, it displays the prompt information.z The ping command can apply to the destination’s name or IP address. If thedestination’s name is unknown, the prompt information is displayed.z The statistics during the ping operation, which include number of packets sent,number of echo reply messages received, percentage of messages not received,the minimum, average, and maximum response time.