S&C Instruction Sheet 1072-530
57
SpeedNet Client Tool
Statistics Window,
ICMP Tab
Figure 84. The Internet Control Message Protocol statistics window.
The
ICMP
Tab, as shown in Figure 84, provides the following statistical information
regarding the Internet Control Message Protocol:
• ICMP messages sent
—The total number of ICMP messages sent by the radio
• Outgoing messages discarded due to format error
—
The total number of ICMP
messages sent by a radio that were not delivered because of format errors
• Destination unreachable messages sent
—The total number of destination
unreachable messages sent by the radio; destination unreachable messages are
generated when the destination address is unreachable
• Time exceeded messages sent
—
The total number of messages sent by the radio
that exceeded their time to live
• Parameter problem messages sent
—The total number of parameter problem
messages sent; a parameter problem message is sent when an error in the IP header
of a datagram is detected
• Source quench messages sent
—The total number of source quench messages sent
by the radio; a source quench request is sent to request a reduction in the packet
transmission rate
• Redirect messages sent
—The total number of redirect messages sent; a redirect is
sent when an alternate route for the datagram is selected
• Echo request messages sent
—The total number of echo requests sent; an echo
request causes the receiving radio to send an echo reply message back to the
originating radio, and echo requests are typically generated by a “Ping” application
• Echo reply messages sent
—The total number of echo replies sent; an echo reply
is sent to respond to an echo request, and echo replies are typically generated by a
“Ping” application
• Timestamp request messages sent
—The total number of timestamp requests sent; a
timestamp request causes the radio to send a timestamp reply to the originating radio
• Timestamp reply messages sent
—The total number of timestamp replies sent; a
timestamp reply is sent in response to a timestamp request, and timestamp replies and
requests measure the transmission speed of datagrams on a network
• Address mask request messages sent
—The total number of address mask requests
sent; an address mask request is sent to determine the number of bits in the subnet
mask for the destination’s Ethernet subnet
• Address mask reply messages sent
—
The total number of address mask responses
sent; an address mask response is sent in response to an address mask request