Figure 19-7, Arp statistics, Displaying statistics for ip protocols – Asante Technologies 40240/40480-10G User Manual

Page 335: Ip statistics

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Description

The total number of input datagrams received from interfaces, including

those received in error.

The number of input datagrams discarded because the IP address in the

header's destination field was not a valid address for this entity.

The number of input datagrams for which no problems were encountered

to prevent their continued processing, but which were discarded (e.g., for

lack of buffer space).

The total number of datagrams which local IP user-protocols (including

ICMP) supplied to IP in requests for transmission.

The number of datagrams discarded because no route could be found to

transmit them to their destination. Note that this includes any datagrams

which a host cannot route because all of its default gateways are down.

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.

The number of IP fragments received which needed to be reassembled at

this entity.

The number of failures detected by the IP re-assembly algorithm (for

whatever reason: timed out, errors, etc.).

The number of datagrams that have been discarded because they needed

to be fragmented at this entity but could not be, e.g., because their “Don't

Fragment” flag was set.

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.

The number of locally-addressed datagrams received successfully but

discarded because of an unknown or unsupported protocol.

The total number of input datagrams successfully delivered to IP

user-protocols (including ICMP).

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).

The number of datagram fragments that have been generated as a result

of fragmentation at this entity.

Displaying Statistics for IP Protocols

IP Statistics

The Internet Protocol (IP) provides a mechanism for transmitting blocks of data
(often called packets or frames) from a source to a destination, where these network
devices (i.e., hosts) are identified by fixed length addresses. The Internet Protocol
also provides for fragmentation and reassembly of long packets, if necessary, for
transmission through “small packet” networks.

Table 19-3 IP Statistics

Parameter

Packets Received

Received Address Errors

Received Packets Discarded

Output Requests

Output Packet No Route

Datagrams Forwarded

Reassembly Required

Reassembly Failures

Datagrams Failing

Fragmentation

Received Header Errors

Unknown Protocols Received

Received Packets Delivered

Discarded Output Packets

Fragments Created

19-16

IP Routing

19

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