ADTRAN 616, 612, 606, 624, 604 system manual IP packets from the units IP stack

Section 4 User Interface Guide Total Access 600 Series System Manual

IP DATAGRAMS RECEIVED

The total number of input datagrams received from interfaces, including those received in error.

BAD HEADER PACKETS

The number of input datagrams discarded due to errors in their IP headers, including bad check sums, version number mismatch, other format errors, time-to-live exceeded, errors discovered in processing their IP options, etc.

BAD IP ADDRESSES

The number of input datagrams discarded because the IP address in their IP header's destination field was not a valid address to be received at this unit. This count includes invalid addresses (e.g., 0.0.0.0) and addresses of unsupported Classes (e.g., Class E). For entities which are not IP Gateways and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address.

TOTAL FORWARDED DATAGRAMS

The number of input datagrams for which this unit 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 unit, and the Source-Route option processing was successful.

BAD PROTOCOL DISCARDS

The number of locally-addressed datagrams received successfully but discarded because of an unknown or unsupported protocol.

DATAGRAMS DISCARDED

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.

SENT DATAGRAMS TO UPPER LAYERS

The total number of input datagrams successfully delivered to IP user-protocols (including ICMP).

IP DATAGRAMS SENT

IP packets from the unit's IP stack.

ERRORFREE DISCARDS

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 TOTAL FORWARDED DATAGRAMS if any such packets met this (discretionary) discard criterion.

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