https://www.ietf.org/rfc/rfc1442.txt https://www.ietf.org/rfc/rfc1442.txt
The OCTET STRING type represents arbitrary binary or textual data. Although there is no SMI-specified size limitation for this type, MIB designers should realize that there may be implementation and interoperability limitations for sizes in excess of 255 octets.
Octet string 解析 - HappyEDay - 博客园 https://www.cnblogs.com/HappyEDay/p/5504377.html