netstat(1M)                    DG/UX R4.11MU05                   netstat(1M)


NAME
       netstat - show status for DG/UX network parameters

SYNOPSIS
       netstat [ -Aainsrt ] [ [ -I interface ] interval ]

DESCRIPTION
       The netstat command symbolically displays the contents of various
       network-related data structures.  The options are as follows:

       -A     Obsolete and ignored.  This is equivalent to the default
              display.

       -a     The state of all sockets; normally, sockets used by server
              processes are not shown.

       -i     The state of interfaces that have been auto-configured
              (interfaces statically configured into a system but not
              located at boot time are not shown).

       -n     Network addresses as numbers (normally, netstat interprets
              addresses and tries to display them symbolically).

       -s     Per-protocol statistics.

       -r     The routing tables.

       -t     Shows the local and remote addresses, send and receive queue
              sizes (in bytes), protocol, and (optionally) the internal
              state of the protocol for active sockets.  This is the default
              display.

       -I interface
              The interface specifies which interface should be displayed
              when printing statistics with the interval option.  Specify
              interface as the name if the interface. i.e., -I inen0

       When invoked with an interval argument, netstat continuously displays
       a running count of statistics related to network interfaces.  This
       display shows two columns:  one for all interfaces, and one for the
       specified interface.  The first line of each screen of information
       contains a summary of activity since the system was last rebooted.
       The netstat command pauses the number of seconds indicated by
       interval before refreshing the screen.  Subsequent lines of output
       show values accumulated over the preceding interval.

       If a socket's address specifies a network but no specific host
       address, address formats are displayed in the form host-port or
       network-port.  When the host and network addresses are specified,
       they are displayed symbolically according to the databases /etc/hosts
       and /etc/networks, respectively.  If a symbolic name for an address
       is unknown, or if the -n option is specified, the address is printed
       in the Internet dot format.  Unspecified or wildcard addresses and
       ports appear as *-.

       The interface display provides a table of cumulative statistics on
       packets transferred, errors, and collisions.  The network address
       (currently Internet-specific) of the interface and the maximum
       transmission unit (mtu) are also displayed.

       The routing table display indicates the available routes and their
       status.  Each route consists of a destination host or network and a
       gateway to use in forwarding packets.  The flags field shows the
       state of the route (U if up), whether the route is to a gateway (G),
       or whether the route is to a particular host (H).  (Routes with an H
       flag appear as the result of an ICMP redirect or someone using the
       route(1M) command with the host parameter.)  Direct routes are
       created for each interface attached to the local host.  The refcnt
       field gives the current number of active uses of the route.
       Connection-oriented protocols normally hold on to a single route
       during a connection; protocols without connections obtain a route,
       then discard it.  The use field provides a count of the number of
       packets sent using that route.  The interface entry indicates the
       network interface used for the route.

SEE ALSO
       route(1M), hosts(4), networks(4), protocols(4), services(4).


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