ADTRAN Atlas 550 User Manual
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Chapter 9. Router
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ATLAS 550 User Manual
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ForwDatagrams
The number of input datagrams for which thisATLAS 550 was not their final
IP destination, as a result of which an attempt was made to find a route to
forward them to that final destination. In entities which do not act as IP
Gateways, this counter will include only those packets which were Source-
Routed via this ATLAS 550, and the Source-Route option processing was
successful.
InUnknownProtos
The number of locally-addressed datagrams received successfully but
discarded because of an unknown or unsupported protocol.
InDiscards
The number of input IP datagrams for which no problems were encountered
to prevent their continued processing, but which were discarded (e.g. for lack
of buffer space). Note that this counter does not include any datagrams
discarded while awaiting re-assembly.
InDelivers
The total number of input datagrams successfully delivered to IP user-
protocols (including ICMP).
OutRequests
The total number of IP datagrams which local IP user-protocols (including
ICMP) supplied to IP in requests for transmission. Note that this counter does
not include any datagrams counted in ipForwDatagrams.
OutDiscards
The number of output IP datagrams for which no problem was encountered to
prevent their transmission to their destination, but which were discarded (e.g.,
for lack of buffer space). Note that this counter would include datagrams
counted in ipForwDatagrams if any such packets met this (discretionary)
discard criterion.
OutNoRoutes
The number of IP datagrams discarded because no route could be found to
transmit them to their destination. Note that this counter includes any packets
counted in ipForwDatagrams which meet this “no-route” criterion
ReasmTimeout
The maximum number of seconds which received fragments are held while
they are awaiting reassembly at this ATLAS 550.
ReasmReqds
The number of IP fragments received which needed to be reassembled at
this ATLAS 550.
ReasmOKs
The number of IP datagrams successfully re-assembled.
ReasmFails
The number of failures detected by the IP re-assembly algorithm (for
whatever reason: timed out, errors, etc). Note that this is not necessarily a
count of discarded IP fragments since some algorithms (notably RFC 815’s)
can lose track of the number of fragments by combining them as they are
received.
FragOKs
The number of IP datagrams that have been successfully fragmented at this
ATLAS 550.
FragFails
The number of IP datagrams that have been discarded because they needed
to be fragmented at this ATLAS 550 but could not be, e.g., because their
“Don't Fragment” flag was set.
Table 9-1. IP Statistics (Continued)
Name
Description