9-1

Chapter 9

Viewing ICMP Group Statistics

The ICMP Group window

ICMP (Internet Control Message Protocol) is the Internet Protocol mechanism
used by network devices to determine if a destination is reachable and to notify
other devices about delivery problems. Using PING (Packet Internet Groper), an
ICMP echo request packet is sent to an IP address and awaits a reply. This
provides a means to test the availability of devices and routes on the network
(from the local network device to a remote network device).
The ICMP Group window displays statistics for the ICMP datagram traffic
transmitted and received by the device, which provides information on how your
device is performing at the Internet layer.
To open the ICMP Group window from the System Group window:
1. Click on the Other Groups button. The Other Groups drop-down menu
displays.
2. Click on ICMP Group. The ICMP Group window, Figure9-1, opens.