IP Object

The Internet Protocol (IP) performance object includes counters that describe the rates at which IP datagrams are transmitted by a computer using the IP protocol. It also describes various error counts for the IP protocol.

Counter Name Description Counter Type
Datagrams Forwarded/sec Shows the rate at which attempts were made to find routes to forward input datagrams to their final destination because the local server was not their final IP destination. In servers that do not act as IP gateways, this rate includes only packets that were source-routed via this entity, and the source-route option processing was successful. PERF_COUNTER_COUNTER
Datagrams Outbound No Route Shows 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 Datagrams Forwarded/sec that meet this "no route" criterion. PERF_COUNTER_RAWCOUNT
Datagrams Outbound Discarded Shows the number of output IP datagrams that were discarded even though no problems were encountered to prevent their transmission to their destination (for example, for lack of buffer space). This counter includes datagrams counted in Datagrams Forwarded that meet this criterion. PERF_COUNTER_RAWCOUNT
Datagrams Received Address Errors Shows the number of input IP datagrams that were discarded because the IP address in their IP header destination field was not valid for the computer. This count includes invalid addresses (for example, 0.0. 0.0) and addresses of unsupported Classes (for example, Class E). For entities that are not IP gateways and do not forward datagrams, this counter includes datagrams discarded because the destination was not a local address. PERF_COUNTER_RAWCOUNT
Datagrams Received Delivered/sec Shows the rate at which input IP datagrams are successfully delivered to IP user-protocols, including ICMP. PERF_COUNTER_COUNTER
Datagrams Received Discarded Shows the number of input IP datagrams that were discarded even though problems prevented their continued processing (for example, for lack of buffer space). This counter does not include any datagrams discarded while awaiting re-assembly. PERF_COUNTER_RAWCOUNT
Datagrams Received Header Errors Shows the number of input IP datagrams that were discarded due to errors in the IP headers, including bad checksums, version number mismatch, other format errors, time-to-live exceeded, errors discovered while processing their IP options, and so on. PERF_COUNTER_RAWCOUNT
Datagrams Received Unknown Protocol Shows the number of locally-addressed datagrams successfully received but discarded because of an unknown or unsupported protocol. PERF_COUNTER_RAWCOUNT
Datagrams Received/sec Shows the rate at which IP datagrams are received from the interfaces, including those in error. Datagrams Received/sec is a subset of IP\ Datagrams/sec. PERF_COUNTER_COUNTER
Datagrams Sent/sec Shows the rate at which IP datagrams are supplied for transmission by local IP user-protocols (including ICMP). This counter does not include datagrams counted in IP\ Datagrams Forwarded/sec. Datagrams Sent/sec is a subset of IP\ Datagrams/sec. PERF_COUNTER_COUNTER
Datagrams/sec Shows the rate at which IP datagrams are received from or sent to the interfaces, including those in error. Forwarded datagrams are not included in this rate. PERF_COUNTER_COUNTER
Fragment Re-assembly Failures Shows the number of failures detected by the IP re-assembly algorithm, such as time outs, errors, and so on. This is not necessarily a count of discarded IP fragments since some algorithms (notably RFC 815) lose track of the number of fragments by combining them as they are received. PERF_COUNTER_RAWCOUNT
Fragmentation Failures Shows the number of IP datagrams that were discarded because they needed to be fragmented but could not be (for example, because the "Don't Fragment" flag was set). PERF_COUNTER_RAWCOUNT
Fragmented Datagrams/sec Shows the rate at which datagrams are successfully fragmented. PERF_COUNTER_COUNTER
Fragments Created/sec Shows the rate at which IP datagram fragments have been generated as a result of fragmentation. PERF_COUNTER_COUNTER
Fragments Re-assembled/sec Shows the rate at which IP fragments are successfully re-assembled. PERF_COUNTER_COUNTER
Fragments Received/sec Shows the rate at which IP fragments that need to be re-assembled at this entity are received. PERF_COUNTER_COUNTER

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