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pppstat(1M)							   pppstat(1M)

NAME    [Toc]    [Back]

     pppstat - Point-to-Point Protocol (PPP) Status

SYNOPSIS    [Toc]    [Back]

     pppstat [-n] [-u unit] [-i	interval] [-m d|r|z]

DESCRIPTION    [Toc]    [Back]

     pppstat displays the current status of PPP	links.	Both configuration
     values (e.g. IP addresses,	protocols, and packet sizes) and operational
     values (e.g. recent compression performance, corrupted packets, and
     current links in the multilink bundle) are	displayed.

     The options are:

     -n	  display numbers instead of names.

     -u	unit
	  display the stat of PPP unit unit instead of the first active	unit.

     -i	interval
	  refresh the screen every interval seconds instead of once per

     -m	d|r|z
	  display using	d or delta mode	(changes since last screen update), r
	  or reset mode	or values since	link start, or z or zeroed mode	or
	  values since last zeroed.

     The current status	of a PPP link is displayed on seven screens.  The
     first four	or "link" screens indicate what	is happening on	one of the
     links in a	multilink bundle.  The fifth or	"I/O" screen displays input
     and output	status and counts for the overall multilink bundle.  The sixth
     displays accounting information, such as how long the links in the	bundle
     have been active and how many phone calls have been attempted.  The
     seventh displays various generally	uninteresting values, such as the next
     multilink serial number and how often the type-of-service (TOS) queuing
     mechanisms	have been invoked.

     pppstat accepts single-character commands while it	is running.  Single
     digits select the corresponding screen.  Plus (+) and minus (-) select
     the previous or next active interface or unit.  The letters "D", "Z", and
     "R" select	"delta"	(changes since last screen update), "zeroed" (values
     since last	"Z"), and "reset modes"	(values	since link start).

     After the configuration has been checked (e.g. IP addresses) the most
     important or at least commonly monitored values are the number of packets
     with bad FCS in screens 1-4, the current bit rates	in screen 5, and the
     number of links in	the bundle and PPP processes adding links in screen 6.

									Page 1

pppstat(1M)							   pppstat(1M)

Screens	1-4
     The per-link screens are empty when the corresponding link	in the
     multilink bundle is not active.  When a link is active, its screen
     includes information about:

	  the Ident string received from the peer, which for IRIX includes
	  information about the	hardware and software.

     link type,
	  whether synchronous or asynchronous, and whether the phone call was
	  answered or originated.

     raw input and output
	  in total bytes.

     link rate
	  in bits per second if	know and not inferred (e.g. specified in
	  control file).

     RTT  or measured round-trip-time.

	  or maximum transmit and receive unit (packet)	sizes and reassembled
	  unit (multilink packet) sizes.

     bad packets
	  or packets discarded because with bad	checksums (FCS), insufficient
	  buffer memory	(no buf), too small to contain a packet	(tiny),
	  aborted by the peer, too long, or ridiculously long babble frames.
	  Note that when using a modem,	null frames are	often sent before
	  packet after a link has been idle to minimize	the effects of line

	  various internal values of the data and header (or "VJ") compression
	  machinery are	displayed on the bottom	of the screens 1-4

Screen 5    [Toc]    [Back]

     The I/O screen contains general input/output information, including:

     input and output
	  counts of the	raw or compressed bytes	moved and the number of	bytes
	  of IP	packets.  Note that without compression, the number of raw
	  bytes	is more	than the number	of IP bytes.  The recent input and
	  output bit rates are displayed along with an indication of whether
	  those	rates appeared to the PPP system medium	or high	compared to
	  the capacity of the multilink	bundle.

     available and previous
	  bits per second of the overall multilink bundle as estimated by the
	  PPP system are displayed below the measured rates.

									Page 2

pppstat(1M)							   pppstat(1M)

	  When compression is done "above" the multilink bundle, so that the
	  per-link compression is the same as the compression of the entire
	  bundle, the bottom of	screen 5 contains information about the
	  compression machinery	like that found	on screens 1-4.

Screen 6    [Toc]    [Back]

     The accounting screen tells about the number of phone calls, their
     duration, and what	the machinery is doing about adding or removing	links.

FILES    [Toc]    [Back]

     /tmp/.ppp-rendezvous   rendezvous with PPP	daemons

SEE ALSO    [Toc]    [Back]


									PPPPaaaaggggeeee 3333
[ Back ]
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