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21-16 SmartSwitch 1800 4.0 User Guide, Rev 01
CURR
is the current value, and
CUMULATIVE
is the total since the last IPL
of the node.
Information in this Display:
●
ICMP Errors
– is the number of ICMP packets generated by this node.
●
Pkt Too Short
– is the number of datagrams received with a length shorter than
that specified in the header, or shorter than the ICMP minimum length.
●
Old Too Short
– is the number of old version ICMP datagrams that were too
short.
●
Bad Checksums
– is the number of ICMP messages received with a bad
checksum.
●
Old ICMP
– is the number of old version ICMP datagrams received.
●
Bad Pkt Length
– is the number of ICMP datagrams received with a length too
short for the given ICMP message type.
●
Bad ICMP Code
– is the number of ICMP datagrams received with a bad code
(which identifies parameters for the control message).
●
Responses Cnt
– is the total number of responses from this node to echoes and
requests for timestamps, information, and address masks (all described later).
●
Out Echo Reply
– is the number of outgoing responses to ICMP echo request dat-
agrams, which are sent by other entities in the IP network as a means of con-
firming that communication is possible.
●
In Echo Reply
– is the number of incoming ICMP echo responses, sent by other
entities in the IP network in response to echo requests (see "
Out Echo
") from this
node.
●
Out/In Dest Unrech
– is the number of outgoing datagrams that could not be
delivered because the destination device/network was not reachable, a nec-
essary protocol was not running, or fragmentation was necessary but disallowed
(due to the "don't frag" flag being set). The message text says
Outgoing
if this
node is a point in the path of the datagram, and
Incoming
if the datagram origi-
nated at this node.
●
Out/In Pkt Lost
– is the number of datagrams transmitted by this node that sub-
sequently were lost. The message text says
Outgoing
if this node is a point in the
path of the datagram, and
Incoming
if the datagram originated at this node.
●
Out/In Redirect
– is the number of datagrams transmitted by this node that sub-
sequently were redirected within the same network. The message text says
Out-
going
if this node is a point in the path of the datagram, and
Incoming
if the
datagram originated at this node.
●
Out Echo
– is the number of requests to other entities in the IP network to
respond, as a means of confirming that communication is possible.
●
In Echo
– is the number of requests from other entities in the IP network to
respond to those entities, as a means of confirming that communication is pos-
sible.
●
Out/In Time Exceed
– is the number of transmitted datagrams that subsequently
were discarded by a router due to expiration of the datagram's "time to live," or
by a destination host due to inability to reassemble the datagram within the nec-
essary time period. The message text says
Outgoing
if this node is a point in the
path of the datagram, and
Incoming
if the datagram originated at this node.