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: http://itpm.msu.su/LDP/nag/node180.html
Дата изменения: Sun Apr 18 13:36:24 1999 Дата индексирования: Mon Oct 1 20:36:52 2012 Кодировка: |
To negotiate session control and file transfers with the remote end, uucico uses a set of standardized messages. This is often referred to as the high-level protocol. During the initialization phase and the hangup phase these are simply sent across as strings. However, during the real transfer phase, an additional low-level protocol is employed which is mostly transparent to the higher levels. This is to make error checks possible when using unreliable lines, for instance.