On Dec 16 2004, at 14:02 Uhr, Margaret Wasserman wrote:
RFC0885 Telnet end of record option
This option was, at least at one time, used for telnet clients that connected to IBM mainframes... It was used to indicate the end of a 3270 datastream.
... and 5250 (RFC2877).
Note that there was a draft-murphy-iser-telnet-02.txt attempt at RFC2877bis as recent as May 2004, which still uses EOR.
RFC1576 (which is cited in the PS document RFC2355 as "traditional TN3270") says:
Currently, support for 3270 terminal emulation over Telnet is accomplished by the de facto standard of negotiating three separate Telnet Options - Terminal-Type [2], Binary Transmission [3], and End of Record [4]. This negotiation and the resulting data flow will be described below. [...] [4] Postel, J., "Telnet End of Record Option", RFC 885, USC/Information Sciences Institute, December 1983.
It's probably necessary to do a full dependency analysis to do this right.
OMG, what a visit to the technology attic.
Gruesse, Carsten
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