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       snmpnetstat - show network status using SNMP

       snmpnetstat [common arguments] [-a] [-n] host
       snmpnetstat [common arguments] [-iors] [-n] host
       snmpnetstat [common arguments] [-i] [-n] [-I interface] host [interval]
       snmpnetstat [common arguments] [-a] [-n] [-P protocol] host

       The snmpnetstat command symbolically displays the values of various network-related infor-
       mation retrieved from a remote system using the SNMP protocol.  There are a number of out-
       put  formats,  depending  on the options for the information presented.	The first form of
       the command displays a list of active sockets.  The second form	presents  the  values  of
       other network-related information according to the option selected.  Using the third form,
       with an interval specified, snmpnetstat will continuously display the information  regard-
       ing packet traffic on the configured network interfaces.  The fourth form displays statis-
       tics about the named protocol.

       The hostname specification may be either a host name or an internet address  specified  in
       "dot notation".

       The  version  1	and version 2c community specifies the community name for the transaction
       with the remote system.

       The options have the following meaning:

       -a     With the default display, show the state of all sockets; normally sockets  used  by
	      server processes are not shown.

       -i     Show the state of all of the interfaces.

       -o     Show  an	abbreviated interface status, giving octets in place of packets.  This is
	      useful when enquiring virtual interfaces (such as Frame-Relay circuits) on a  Cisco

       -I interface
	      Show  information  only  about  this  interface; used with an interval as described

       -n     Show network addresses as numbers (normally snmpnetstat  interprets  addresses  and
	      attempts	to  display  them symbolically).  This option may be used with any of the
	      display formats.

       -P protocol
	      Show statistics about protocol, which is either a well-known name for a protocol or
	      an  alias for it.  Some protocol names and aliases are listed in the file /etc/pro-
	      tocols.  A null response typically means that there are no interesting  numbers  to
	      report.  The program will complain if protocol is unknown or if there is no statis-
	      tics routine for it.

       -s     Show per-protocol statistics.

       -r     Show the routing tables.	When -s is also present, show routing statistics instead.

       The default display, for active sockets, shows the local and remote  addresses,	protocol,
       and  the internal state of the protocol.  Address formats are of the form ``host.port'' or
       ``network.port'' if a socket's address specifies a network but no specific  host  address.
       When known the host and network addresses are displayed symbolically according to the data
       bases /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 numerically, according
       to the address family.  For more information regarding the Internet ``dot format,''  refer
       to inet(3N).  Unspecified, or ``wildcard'', addresses and ports appear as ``*''.

       The  interface  display provides a table of cumulative statistics regarding packets trans-
       ferred, errors, and collisions.	The network addresses 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''), whether the route was created dynamically  by  a  redirect  (``D''),  and
       whether	the route has been modified by a redirect (``M'').  Direct routes are created for
       each interface attached to the local host; the gateway field for such  entries  shows  the
       address	of  the  outgoing interface.  The interface entry indicates the network interface
       utilized for the route.

       When snmpnetstat is invoked with an interval argument, it displays a running count of sta-
       tistics	related to network interfaces.	This display consists of a column for the primary
       interface and a column summarizing information for all interfaces.  The primary	interface
       may  be replaced with another interface with the -I option.  The first line of each screen
       of information contains a summary since the system was last rebooted.  Subsequent lines of
       output show values accumulated over the preceding interval.

       snmpcmd(1), iostat(1), vmstat(1), hosts(5), networks(5), protocols(5), services(5).

       The notion of errors is ill-defined.

4.2 Berkeley Distribution		   21 Aug 2000				   SNMPNETSTAT(1)
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