1. 通信协议：据了解,开放标准是指通过在应用编程接口(API)、通信协议(Protocol)以及数据和文档格式(Format)方面使用公开发布的规范,来实现各种异构信息系统之间的互操作性.

2. 協定：• 协定(protocol)段指定高层协定的类型,例如:ICMP是1、TCP是6、UDP是17. • 校验和(checksum)保证IP分组头的完整性. 攻击者最为常用的IP选项就是严格源路由(strict source routed)选项. 一般情况下,

1. 礼仪；社交礼节
    Protocol is a system of rules about the correct way to act in formal situations.

    e.g. He has become something of a stickler for the finer observances of royal protocol.
           他已经变得非常刻板，哪怕是最细微的皇室礼仪也会遵循。
    e.g. ...minor breaches of protocol.
           小小的失礼

2. （信息交换）协议
    A protocol is a set of rules for exchanging information between computers.

protocol是什么意思

3. 议定书；协议
    A protocol is a written record of a treaty or agreement that has been made by two or more countries.

protocol是什么意思

    e.g. ...the Montreal Protocol to phase out use and production of CFCs...
           逐步停止使用及生产含氯氟烃的《蒙特利尔议定书》
    e.g. There are also protocols on the testing of nuclear weapons.
           也有关于核武器试验的协议。

4. 治疗方案；科学实验计划
    A protocol is a plan for a course of medical treatment, or a plan for a scientific experiment.

公共查询·英语单词

    e.g. ...the detoxification protocol.
           戒毒方案

1. code of correct conduct

    e.g. safety protocols
           academic protocol

2. forms of ceremony and etiquette observed by diplomats and heads of state

3. (computer science) rules determining the format and transmission of data

    Synonym: communications protocol