在200/300系列被管理的交换机的SNTP认证
客观
Simple Network Time Protocol (SNTP)是使用同步在互联网的计算机时钟网络时间协议(NTP)的适应。对一起是连网有同步的时间的设备是重要，因此他们可彼此高效地进行实时动作。要执行此，必须添加Sntp server到交换机，并且必须配置SNTP认证密钥。认证密钥允许设备与Sntp server同步自己。
关于如何添加Sntp server的更多信息请参见条款添加在200/300系列被管理的交换机的一Sntp server。
此条款说明如何配置在200/300系列被管理的交换机的SNTP认证。
可适用的设备
•SF/SG 200和SF/SG 300系列被管理的交换机
软件版本
•1.3.0.62
SNTP认证
步骤1.登陆到Web配置工具并且选择Administration >时间设定> SNTP认证。SNTP认证页打开：
Step 2.检查在SNTP认证字段的Enable (event)要求一次SNTP会话的认证在交换机和Sntp server之间的。
步骤3.点击适用。
步骤4.点击添加添加认证密钥。添加SNTP认证窗口出现。
步骤5.输入使用识别SNTP认证密钥内部地在认证密钥ID字段的编号。
步骤6.点击对应于期望关键输入认证密钥领域的单选按钮。Sntp server必须发送交换机的此键能同步到它。
•用户定义(加密) —输入键在被加密的格式。
•用户定义(明文) —输入键在无格式文本格式。
第 7 步：检查在信任键关键字域的Enable (event)允许交换机从仅Sntp server获得使用被定义的认证密钥的同步信息。
步骤8.点击适用。配置SNTP认证密钥。
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