pfstat man page on OSF1

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pfstat(1)							     pfstat(1)

NAME
       pfstat - Print packet filter status information

SYNOPSIS
       /usr/bin/pfstat [options]

OPTIONS
       If  no  options	are  given,  all  are  assumed (except for the verbose
       option, -v).  Counts.  Displays	various	 counts	 (per  ethernet	 unit)
       including  number  of  packets sent and received, the number of packets
       dropped due to full input queues, the number of packets not  wanted  by
       any  filter,  and  the  number  of  packets  missed  by	the interface.
       Descriptors.  Displays OpenDescriptors for each minor device.  Filters.
       Displays	 packet	 filters for each minor device.	 Parameters.  Displays
       device parameters including device type, header	and  address  lengths,
       maximum	 transmission	units	(MTU),	and  interface	and  broadcast
       addresses.  QueueElements.   Displays  the  QueueElements.   Scavenger.
       Displays	 the  FreeQueue	 and Scavenger statistics.  Verbose.  Displays
       information for minor devices not actually in use  and  complete	 queue
       information,  only  if this option is given.  Limits output to informa‐
       tion about specified units.  If no digits are given, all units are dis‐
       played.	Valid digits are 0 to 7.

DESCRIPTION
       The  pfstat command interprets the data structures of the packet filter
       driver  packetfilter(7).	  The  data  structures	  are	contained   in
       /dev/kmem.

RESTRICTIONS
       By  default, some of the output might not be easily read on an 80-char‐
       acter line.  You might want to use some of the options to obtain a less
       verbose but more readable listing.

       Because	of  the	 dynamic  nature of a running system, pfstat might not
       provide a consistent view of the system.	 You should use	 this  command
       for analyzing static or slowly-varying problems, not transient ones.

OUTPUT FORMAT
       This  section  describes the information displayed in the output of the
       pfstat  command	under  the  headings  AllDescriptors,	Filters,   and
       QueueElts.

   AllDescriptors
       Minor device number for open descriptor.	 Descriptor location.  Forward
       link to other descriptors.  Blank, or one of the following: Waiting for
       input,  indefinite  wait	 Waiting  for  input, timed wait Has timed out
       Addresses of ``Queue Elements'' for waiting packets.  Number of packets
       queued  for  input/maximum  for	this queue.  Timeout duration in clock
       ticks (if the -v [Verbose] option  is  not  given,  the	times  may  be
       expressed  as  minutes  [with a trailing ``m''], hours [with a trailing
       ``h''], or simply ``long'', to keep the columns lined up.)  Shows which
       mode bits are set for the minor device; each bit is encoded as a single
       character: ENHOLDSIG ENBATCH  ENTSTAMP  ENPROMISC  ENNONEXCL  ENCOPYALL
       ENBPFHDR	 An  unknown  mode  bit is set.	 Signal number to be delivered
       when a packet arrives.  Process to be signaled when a  packet  arrives.
       Process id which enabled the signal.

   Filters
       Minor  device number of filter.	Count of packets accepted by this fil‐
       ter.  Count of ``recent'' drops for this filter.	 Priority  of  filter.
       (Not  applicable	 to  BPF-style	filters.)  Length of filter (in short‐
       words).	See packetfilter(7) for interpretation of packet filters.  See
       bpf(7) for interpretation of BPF-style filters.

   QueueElts
       Location	 of  queue element.  Forward and backward links.  Packet size.
       Reference count for queue element.  Per-packet flag bits set; each  bit
       is encoded as a single character: ENSF_PROMISC ENSF_BROADCAST ENSF_MUL‐
       TICAST ENSF_TRAILER An unknown flag  bit	 is  set.   Count  of  packets
       dropped	between	 the time previous packet was queued and the time this
       packet was queued.  Approximate time this packet was received.

FILES
       Default source of tables

SEE ALSO
       Commands:  netstat(1), pfconfig(8)

       Files:  bpf(7), packetfilter(7)

								     pfstat(1)
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