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netdiag - Performs network diagnostics.
netdiag [ -s|v|d ] [ -nbate ] [ -p [ -I interface ] ]
netdiag -?
The netdiag command analyzes the statistics continuously
gathered by the network protocol code and (if required)
performs various tests to ensure the sanity of operation
of the protocol code. It displays the results of the
analysis (and any tests performed) along with suggested
remedial actions (if any problems are found). The netdiag
command analyses almost all of the statistics displayed by
the many forms of the netstat command for aberrant values.
The first form presented allows the user to specify what
subset(s) of the networking subsystem to address and what
kind of output to produce. The various options that
influence this command form are described in detail below.
The second form displays the usage message.
- -s
- Prints only a summary of the results of the
various checks and tests performed.
- -v
- Verbose output. Prints a description of the
various checks and subtests as they are
performed.
- -d
- Debug output. Prints a very detailed
description of the various check and
subtests as they are performed. This option
is for use by the expert user, or someone
who understands the various checks and
tests that netdiag performs.
- -b
- Non-interactive usage. The command should
not prompt for user input. This is useful
when using netdiag from an automated
script.
- -e
- Prints error codes. Prints a numeric error
code with each message. This is useful when
using netdiag in consultation with NetApp
personnel.
- -p
- Performs diagnostic checks and tests for
the interface layer (that is, the various
NIC device drivers).
- -I interface
- Performs diagnostic checks and tests only
for the specified interface. The interface
names that netdiag understands are the same
as displayed by the ifconfig command. This
option is meaningful only in conjunction
with the -p option.
- -n
- Performs diagnostic checks and tests for
the network layer (that is, IP).
- -t
- Performs diagnostic checks and tests for
the transport layer (that is, TCP and UDP).
- -a
- Performs diagnostic checks and tests to
verify the sanity of the overall network
subsystem.
na_ifconfig(1), na_netstat(1), na_partner(1),
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