Icmp Statistics - Inter-Tel EncoreCX Manual

ICMP Statistics

Internet Control Message Protocol generates error messages and performance information to indicate
problems in delivering IP packets between LAN hosts and the router.
Statistic Description
InMessages The total number of ICMP
messages received from the
LAN.
InEchos Pings sent by LAN hosts.
InDestUnreachable Sent by a LAN host to the
router indicating a delivery
problem at the host.
InSrcQuenches Flow control message sent by
a LAN host to the router
requesting that the sending
source of IP packets slows
down.
InRedirects Sent by a router to suggest a
better or alternative LAN
default gateway.
InTimeExcds Sent by a LAN host to the
router to indicate that an
attempt to reassemble an IP
packet failed.
InAddrMasks Sent by a LAN host to the
router to discover the subnet
mask of the local network.
Outmsgs The total number of ICMP
messages sent by the router
to the LAN.
OutEchos The number of pings sent
from the router to the LAN.
OutDestUnreachs Sent by the router to a LAN
host indicating a delivery
problem at the remote
network or host.
OutSrcQuenchs Flow control message sent by
the router to a LAN host
requesting that the sending
source of IP packets slows
down.
Internet Module Manual
Possible causes
Bursts at high levels indicate some
problem on the LAN.
(1) The protocol in the IP packet is not
available on the LAN host.
(2) A particular application layer service
on the LAN host is not available.
Low buffer resources on a LAN host.
If this happens frequently, it indicates a
problem at the LAN host.
Some amount of ICMP may be expected,
but bursts at high levels often indicate a
problem.
(1) Remote host unavailable.
(2) Remote network unreachable.
(1) Router unable to process packets
quickly enough.
(2) Router running low on buffer
resources.
EncoreCX
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