Instruction manual

61200780L1-1C © 2004 ADTRAN, Inc. 248
ATLAS 800 Series System Manual Router (IP)
Clear
ForwDatagrams
The number of input datagrams for which this ATLAS 800 Series 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 800 Series, 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
FORWDATAGRAMS.
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
FORWDATAGRAMS 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. This counter includes any packets counted in
FORWDATAGRAMS which meet this “no-route” criterion, as well as any datagrams
which a host cannot route because all of its default gateways are down.
ReasmTimeout
The maximum number of seconds which received fragments are held while they are
awaiting reassembly at this ATLAS 800 Series.
ReasmReqds
The number of IP fragments received which needed to be reassembled at this
ATLAS 800 Series.
ReasmOKs
The number of IP datagrams successfully reassembled.
ReasmFails
The number of failures detected by the IP reassembly 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 815s) 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 800 Series.
FragFails
The number of IP datagrams that have been discarded because they needed to be
fragmented at this ATLAS 800 Series but could not be, e.g., because their “Don't
Fragment” flag was set.
FragCreates
The number of IP datagram fragments that have been generated as a result of
fragmentation at this ATLAS 800 Series.
Table 9. IP Statistics (Continued)
Name Description