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- From: ossi@caip.rutgers.edu (Althea Ossi)
- Newsgroups: comp.protocols.iso
- Subject: Re: Archive site for docs?
- Message-ID: <Aug.20.00.15.10.1992.14125@caip.rutgers.edu>
- Date: 20 Aug 92 04:15:11 GMT
- References: <1992Aug18.174303.2087@nosc.mil> <23310A@erik.naggum.no> <EICHIN.92Aug19032948@tsx-11.mit.edu> <23311D@erik.naggum.no>
- Organization: Rutgers Univ., New Brunswick, N.J.
- Lines: 24
-
- enag@ifi.uio.no (Erik Naggum) writes:
-
- >ASN.1 is really a quite simple and neat specification, once you get
- >through the language barrier that all ISO standards and CCITT
- >recommendations suffer from, but the BER is evil, both in specification
- >and in practice. CCITT is said to suffer to "bitophobia" (abnormal fear
- >of wasted bits), and rather thinks that by the time anyone actually
- >implements ASN.1 BER, the computers won't notice the overhead in
- >unwinding the BER integer and floating-point formats. (Sorry, this is
- >getting out of hand.)
-
- The "bitophobia" exhibited by CCITT is quite justified. There are
- existing applications that are forced to operate with a very small
- bandwidth (e.g., cellular radio control, ground to aircraft control, etc.)
- and thus cannot afford to waste a single bit. Indeed, it is a demonstrated
- need by several sectors of industry that has lead to the development
- of the Packed Encoding Rules of ASN.1 (PER). PER exhibits a far more
- severe case of "bitophobia" than BER even dreamt of, but satisfies the
- needs of those applications that find BER too verbose.
-
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- Bancroft Scott | Open Systems Solutions, Inc.
- 609-987-9073 | Princeton, N.J.
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