[e2e] tcp keepalive 2 hour default

Bob Braden braden at ISI.EDU
Thu Apr 19 08:57:47 PDT 2001


  *> From end2end-interest-admin at postel.org  Thu Apr 19 08:41:39 2001
  *> From: "tom worster" <tom at ennovatenetworks.com>
  *> To: "'end2end-interest'" <end2end-interest at postel.org>
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  *> Subject: [e2e] tcp keepalive 2 hour default
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  *> Date: Thu, 19 Apr 2001 11:25:21 -0400
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  *> does anyone here know the historical rationale for the two
  *> hour minimum on the default tcp keep-alive specified in 
  *> rfc1122?
  *> 
  *>     Keep-alive packets MUST only be sent when no data or
  *>     acknowledgement packets have been received for the
  *>     connection within an interval.  This interval MUST be
  *>     configurable and MUST default to no less than two hours.
  *> 
  *> why was two hours chosen?

To be VERY large... It could have been 1 hour or 3 hours or...

Bob Braden

  *> 
  *> c u
  *> fsb
  *> 



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