The RFC references for SNMP seem a little abstract, because SNMP is actually built upon ASN.1 which defines a compact binary encoding of typed data. For the whole picture you have to dive into the ASN.1 standards too.
Another reference that might be helpful is http://www.vijaymukhi.com/vmis/snmp.htm. It's written in a very casual style but might address some points missed elsewhere.
(You may have noticed that protocols with the word "Simple" in their name, usually aren't.)
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SNMP 的 RFC 参考似乎有点抽象，因为 SNMP 实际上是基于 ASN.1 构建的，ASN.1 定义了类型数据的紧凑二进制编码。为了了解整个情况，您还必须深入研究 ASN.1 标准。
一个很好的 ASN.1 参考是 ASN.1、BER 和DER，以及 Basic 上的维基百科页面编码规则也有很好的概述。这些都不是专门处理 SNMP 的，但是应该足以将各个部分组合在一起。
另一个可能有用的参考是 http://www.vijaymukhi.com/vmis/snmp.htm< /a>.它以非常随意的风格编写，但可能会解决其他地方遗漏的一些要点。
（您可能已经注意到，名称中带有“简单”一词的协议通常不是。）
The RFC references for SNMP seem a little abstract, because SNMP is actually built upon ASN.1 which defines a compact binary encoding of typed data. For the whole picture you have to dive into the ASN.1 standards too.
A good ASN.1 reference is A Layman's Guide to a Subset of ASN.1, BER, and DER, and the Wikipedia page on Basic Encoding Rules also has a good overview. Neither of these deal specifically with SNMP, but it should be enough to fit the pieces together.
Another reference that might be helpful is http://www.vijaymukhi.com/vmis/snmp.htm. It's written in a very casual style but might address some points missed elsewhere.
(You may have noticed that protocols with the word "Simple" in their name, usually aren't.)