IP Routing
3-207
3
Web - Click IP, Statistics, IP.
Figure 3-121 IP Statistics
CLI - See the example on page 3-204.
ICMP Statistics
Internet Control Message Protocol (ICMP) is a network layer protocol that transmits
message packets to report errors in processing IP packets. ICMP is therefore an
integral part of the Internet Protocol. ICMP messages may be used to report various
situations, such as when a datagram cannot reach its destination, when the gateway
does not have the buffering capacity to forward a datagram, and when the gateway
can direct the host to send traffic on a shorter route. ICMP is also used by routers to
feed back information about more suitable routes (i.e., the next hop router) to use for
a specific destination.
Table 3-19 ICMP Statistics
Parameter Description
Messages The total number of ICMP messages which the entity received/sent.
Errors The number of ICMP messages which the entity received/sent but
determined as having ICMP-specific errors (bad ICMP checksums, bad
length, etc.).
Destination Unreachable The number of ICMP Destination Unreachable messages received/sent.
Time Exceeded The number of ICMP Time Exceeded messages received/sent.
Parameter Problems The number of ICMP Parameter Problem messages received/sent.
Source Quenches The number of ICMP Source Quench messages received/sent.
Redirects The number of ICMP Redirect messages received/sent.
Echos The number of ICMP Echo (request) messages received/sent.
Echo Replies The number of ICMP Echo Reply messages received/sent.