User's Manual
Table Of Contents
- About this User Guide
- Table Of Contents
- Chapter 1– Setting Up And Administering The Switch
- Chapter 2 - Configuring MAC Address Management
- Chapter 3 – Configuring the Ports
- Chapter 4 – Configuring VLANs
- Chapter 5 – Configuring Class of Service
- Chapter 6 – Configuring Rapid Spanning Tree
- Chapter 7 – Configuring Multicast Filtering
- Chapter 8 – Diagnostics
- Chapter 9 – Using Ethernet And RMON Statistics
- Introduction
- View Ethernet Statistics
- View Ethernet Port Statistics
- Remote Monitoring (RMON)
- RMON Historical Statistics Concepts And Issues
- RMON Alarms And Events Concepts And Issues
- The Alarm Process
- Alarm Generation And Hysteresis
- Delta vs. Absolute Values
- Configure RMON Alarms
- Configure RMON Events
- RMON Event Logs
- Troubleshooting
- Chapter 10 - Using The CLI Shell
- Chapter 11 – Upgrading Firmware And Managing Configurations
- Appendix A - Menu Tree
- Appendix B - SNMP MIB Support
- Appendix C – SNMP Trap Summary
- Appendix D – RMON Acceptable MIB Parameters
- Index
Chapter 10 - Using The CLI Shell
Pinging A Remote Device
The ping command sends an ICMP echo request to a remotely connected device.
For each reply received the round trip time is displayed.
The ping command can be used to ensure connectivity to the next connected
device. The command “ping 192.168.0.1” will send a small number of pings to
this device and display the results.
The ping command is a useful tool for testing commissioned links. The command
also includes the ability to send a specific number of pings with specified time with
which to wait for a response.
The specification of a large number of pings and a short response time can
“flood” a link, stressing it more than a usual ping sequence. The command “ping
192.168.0.1 500 2” can be used to issue 500 pings each separated by 2 milliseconds
to the next switch. If the link used is of high quality then no pings should be lost
and the average round trip time should be small.
Note:
The device to be pinged must support ICMP echo.
Upon commencing the ping an ARP request for the MAC address of the device is issued.
If the device is not on the same network as the switch the default gateway must be programmed.
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