ADTRAN 550 Name Description ForwDatagrams, InUnknownProtos, InDiscards, InDelivers, OutRequests

	Chapter 9. Router
	Table 9-1. IP Statistics (Continued)
Name	Description
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.

61200305L1-1 ATLAS 550 User Manual 9-11