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  man pages->Tru64 Unix man pages -> pfstat (1)              



NAME    [Toc]    [Back]

       pfstat - Print packet filter status information

SYNOPSIS    [Toc]    [Back]

       /usr/bin/pfstat [options]

OPTIONS    [Toc]    [Back]

       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  information  about  specified
       units.   If  no digits are given, all units are displayed.
       Valid digits are 0 to 7.

DESCRIPTION    [Toc]    [Back]

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

RESTRICTIONS    [Toc]    [Back]

       By default, some of the output might not be easily read on
       an  80-character  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 slowlyvarying
 problems, not transient ones.

OUTPUT FORMAT    [Toc]    [Back]

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

   AllDescriptors    [Toc]    [Back]
       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
       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    [Toc]    [Back]
       Minor  device number of filter.  Count of packets accepted
       by this filter.  Count of ``recent'' drops for  this  filter.
   Priority  of  filter.  (Not applicable to BPF-style
       filters.)  Length of filter (in shortwords).  See  packetfilter(7)  for  interpretation  of  packet  filters.   See
       bpf(7) for interpretation of BPF-style filters.

   QueueElts    [Toc]    [Back]
       Location of queue element.  Forward  and  backward  links.
       Packet  size.   Reference  count  for queue element.  Perpacket
 flag bits set; each bit  is  encoded  as  a  single
       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    [Toc]    [Back]

       Default source of tables

SEE ALSO    [Toc]    [Back]

       Commands:  netstat(1), pfconfig(8)

       Files:  bpf(7), packetfilter(7)

[ Back ]
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