rfc1.txt

RFC中文技术文档

    DEL规范目前还在探讨之中。以下的图例表示了整个时序过程。

A.  

         /                                                      \
        |     +-----------+                    +-----------+    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     |   终端    |                    |   终端    |    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     +-----+-----+                    +-----+-----+    |
        |           |                                |          |
        |           |                                |          |
        |           |                                |          |
        |     +-----+-----+                    +-----------+    |
        |     |     |     |        请求连接        |     |     |    |
   UCLA {     |     |     | -> 通过链路25    |     |     |    } SRI
        |     |   +-+-+   |  +-+          +-+  |   +-+-+   |    |
        |     |   |OS|---+-=|I|----------|I|=-+---|  OS|   |    |
        |     |   +-+-+   |  +-+          +-+  |   +---+   |    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     +-----------+                    +-----------+    |
        |      主机: UCLA                        主机: SRI      |
         \                                                     /

b. 已 建立链接后和登录
         /                                                      \
        |     +-----------+                    +-----------+    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     |   终端    |                    |   终端    |    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     +-----+-----+                    +-----+-----+    |
        |           |                                |          |
        |           |                                |          |
        |           |                                |          |
        |     +-----+-----+ "发送头"+-----------+    |
        |     |     |     | 结束控制"       |     |     |    |
   UCLA {     |     |     |        ->          |     |     |    } SRI ___
        |     |   +-+-+   |  +-+          +-+  |  +--+---+ |    |    /   |
        |     |   | OS|---+-=|I|----------|I|=-+--|OS|NLS| +----+---|    |
        |     |   +-+-+   |  +-+          +-+  |  +------+ |    |   |___/
        |     |           |        DEL 程序    |           |    |   |    |
        |     |           |        <-          |           |    |   |____|
        |     +-----------+                    +-----------+    |
        |      主机: UCLA                        主机:SRI       |
         \                                                     /

c.  接收后并且便宜DEL程序
         /                                                     \
        |     +-----------+                    +-----------+    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     |    终端   |                    |    终端   |    |
        |     |           |                    |           |    |
        |     |           |                    |           |    |
        |     +-----+-----+                    +-----+-----+    |
        |           |Trivial                         |          |
        |           |Responses                       |          |
        |           |                                |          |
        |     +-----+------+                    +-----------+   |
        |     |     |      |                    |     |     |   |
   UCLA {     |     |      |    主要响应        |     |     |   } SRI ___
        |     |  +--+--+   |  +-+          +-+  |  +--+---+ |   |    /   |
        |     |  |DEL  |---+-=|I|----------|I|=-+--|OS|NLS| +---+---|    |
        |     |  |头|   |  +-+          +-+  |  +------+ |   |   |___/
        |     |  | 尾  |   |                    |           |   |   |    |
        |     |  |程序.|   |                    |           |   |   |____|
        |     |  +-----+   |                    |           |   |
        |     |  | OS  |   |                    |           |   |
        |     |  +-----+   |                    |           |   |
        |     |            |                    |           |   |
        |     +------------+                    +-----------+   |
        |      主机: UCLA                         主机: SRI     |
         \                                                     /
讨论问题：
1. 如果IMP进行代码转换，校验码会不正确。

   2.  请求DEL开头和结尾的过程未详细说明。
IV.  初步实验
实验一
    SRI目前正在修改他们的在线修补系统以便可以被模型35TTY操作，该系统将会成为网络文档中心（Network Documentation Center）的主要软件组件。TTY的控制用DEL编写。所有的站点都将编写DEL编译器并且在DEL程序中使用NLS。
实验二
     SRI将为完整的NLS编写一个DEL开头和结尾，包括图形。UCLA和 UTAH使用带图形的 NLS。




         [ This RFC was put into machine readable form for entry ]
         [ into the online RFC archives by Celeste Anderson 3/97 ]

RFC 1 - Host Software                                                           RFC 1主机软件

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