Configuring Routing
211
S3300 Smart Managed Pro Switch
IP Statistics
The statistics reported on the IP Statistics screen are as specified in RFC 1213.
To display the IP statistics screen, select Routing > IP >Statistics.
The following table describes the IP statistics information displayed on the screen.
Table 79. IP routing 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, etc.
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.
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.
IpForwDatagrams The number of input datagrams for which this entity 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 includes only those packets which were Source-Routed via this entity,
and the Source-Route option processing was successful.
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 (e.g., for lack of
buffer space). Note that this counter does not include any datagrams discarded
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 (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.
IpOutNoRoutes 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. Note that this
includes any datagrams which a host cannot route because all of its default
gateways are down.
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