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SmartConnect User’s Guide
BMD00082, February 2009 Chapter 13: Switch Statistics
159
IP Statistics
The following table describes the Internet Protocol statistics fields.
Table 13-8 IP Statistics
Field Description
ipInReceives The total number of input datagrams received from interfaces, including those
received in error.
ipInHdrErrors The number of input datagrams discarded due to errors in their IP headers,
including bad
checksums, version number mismatch, other format errors,
time-to-live exceeded, errors discovered in processing their IP options, and so
forth.
ipInAddrErrors 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 entity (the
switch). This count includes invalid addresses (for example, 0.0.0.0) and
addresses of unsupported Classes (for example, 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.
ipForwDatagrams The number of input datagrams for which this entity (the switch) 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 Gate-
ways, this counter will include only those packets, which were Source-Routed
via this entity (the switch), and the Source- Route option processing was success-
ful.
ipInUnknownProtos The number of locally addressed datagrams received successfully but discarded
because of an unknown or unsupported protocol.
ipInDiscards The number of input IP datagrams for which no problems were encountered to
prevent their continued processing, but which were discarded (for example, for
lack of buffer space). Note that this counter does not include any datagrams dis-
carded while awaiting re-assembly.
ipInDelivers The total number of input datagrams successfully delivered to IP user-protocols
(including ICMP).
ipOutRequests 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.
ipOutDiscards The number of output IP datagrams for which no problem was encountered to
prevent their transmission to their destination, but which were discarded (for
example, for lack of buffer space). Note that this counter would include data-
grams counted in
ipForwDatagrams if any such packets met this (discre-
tionary) discard criterion.