Basic encoding rules
|Term||basic encoding rules|
a set of Abstract Syntax Notation One encoding rules that define a specific way in which information may be encoded in a binary form. It is used as the underlying mechanism for encoding message.
Open DS Wiki (2010) 
BER elements use a TLV structure, where TLV stands for “type”, “length”, and “value”. That is, each BER element has one or more bytes (in LDAP, typically only a single byte) that indicates the data type for the element, one or more bytes that indicate the length of the value, and the encoded value itself (where the form of the encoded value depends on the data type), which can be zero or more bytes [...]