breath-of-life packet

( n.)

   [XEROX  PARC] An Ethernet packet that contains bootstrap (see {boot})
   code,  periodically  sent  out  from a working computer to infuse the
   `breath  of  life' into any computer on the network that has happened
   to crash. Machines depending on such packets have sufficient hardware
   or  firmware  code  to wait for (or request) such a packet during the
   reboot process. See also {dickless workstation}.

   The  notional  kiss-of-death packet, with a function complementary to
   that  of  a  breath-of-life  packet,  is recommended for dealing with
   hosts  that consume too many network resources. Though `kiss-of-death
   packet'  is  usually  used  in jest, there is at least one documented
   instance  of an Internet subnet with limited address-table slots in a
   gateway  machine in which such packets were routinely used to compete
   for  slots,  rather  like  Christmas  shoppers  competing  for scarce
   parking spaces.

[glossary]
[Reference(s) to this entry by made by: {dickless workstation}{heartbeat}{super source quench}]