Enabling Byte Stuffing Transparency for RFC-1619

Document Type Expired Internet-Draft (individual)
Authors Peter Lothberg  , Robert Broberg  , M. Takefman 
Last updated 1998-07-31
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Recent Internet Draft submissions and discussion on the PPP Extensions Working Group email list have highlighted transparency issues with the PPP over SONET/SDH mapping described in IETF RFC1619 and RFC1549. The HDLC byte stuffing described by RFC1549 can result in a worst case expansion of the actual payload data by a factor of 2. An algorithm suggested below limits the expansion factor to be a maximum of 6% the actual data to be transported.


Peter Lothberg (roll@stupi.se)
Robert Broberg (rbroberg@cisco.com)
M. Takefman (tak@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)