ICMP Statistics
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Model 2285 Getting Started Guide
6 • System statistics
ICMP Statistics
The ICMP Statistics screen provides statistical information about packets/connections using an ICMP proto-
col. Definitions and descriptions of each parameter are described below:
Figure 52. ICMP Statistics
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InMsgs, OutMsgs:
Specifies the number of messages received or sent.
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InErrors, OutErrors:
Specifies the number of errors received or sent.
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InDestUnreachs, OutDestUnreachs:
Specifies the number of destination-unreachable messages received or
sent. A destination-unreachable message is sent to the originating computer when a datagram fails to reach
its intended destination.
•
InTimeExcds, OutTimeExcds:
Specifies the number of time-to-live (TTL) exceeded messages received or
sent. A time-to-live exceeded message is sent to the originating computer when a datagram is discarded
because the number of routers it has passed through exceeds its time-to-live value.
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InParmProbs, OutParmProbs:
Specifies the number of parameter-problem messages received or sent. A
parameter-problem message is sent to the originating computer when a router or host detects an error in a
datagram’s IP header.
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InSrcQuenchs, OutSrcQuenchs:
Specifies the number of source quench messages received or sent. A source
quench request is sent to a computer to request that it reduces its rate of packet transmission.
•
InRedirects, OutRedirects:
Specifies the number of redirect messages received or sent. A redirect message is
sent to the originating computer when a better route is discovered for a datagram sent by that computer.
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InEchos, OutEchos:
Specifies the number of echo requests received or sent. An echo request causes the
receiving computer to send an echo reply message back to the originating computer.