RFC 295 (rfc295) - Page 1 of 4
Report of the Protocol Workshop, 12 October 1971
Alternative Format: Original Text Document
NWG/RFC #295 JBP 2-JAN-72 15:35 8355 Protocol Workshop Report Report of the Protocol Workshop 12 October, 1971 By Jon Postel. Introduction This is a report on the decisions reached at the protocol workshop held in conjunction with the Network Working Group meeting held in Cambridge from 10 to 14 October, 1971. The workshop addressed itself to protocols of four types: IMP-Host, Host-Host, Initial Connection, and Process-Process. IMP-Host Protocol The idea of IMP provided status reports to be exchanged via new IMP-Host protocol messages was discussed and rejected because it was felt that the level of state information which could be reported was not sufficient to be worth the trouble of implementing this mechanism. Host-Host Protocol The Host-Host Protocol was discussed and several problems were brought to light, among them were the following listed together with the group's recommendations. The GVB - RET mechanism may prove useful sometime in the future so it will be retained though no one appears to be using it now, however spontaneous RET commands are explicitly prohibited. The ECO - ERP commands are useful and should be supported, but spontaneous ERP commands are explicitly prohibited. A further restriction is that a second ECO will not be sent until the first ECO has been answered. Note that any of the following may be an answer to an ECO: ERP, RST, "Destination dead", or "Incomplete Transmission". The RST - RRP commands are useful, but the proper use of these commands for determining the status of host software is still open for discussion (please direct comments to Jon Postel), however spontaneous RRP commands are explicitly prohibited.