RFC 5952, "A Recommendation for IPv6 Address Text Representation", August 2010

Errata ID: 6272
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Felipe Gasper
Date Reported: 2020-09-02

Section 4.2.1 says:

The line

> The use of the symbol "::" MUST be used to its maximum capability.

… contradicts the next section, which states that single-0 fields are not reduced.

i.e., this:

> 2001:db8:0:1:1:1:1:1

… is longer than:

> 2001:db8::1:1:1:1:1

Thus, the standard does not, in all cases, require that "::" be used to its maximum capability.

It should say:

The first line of 4.2.1 should be amended to be consistent with section 4.2.2

> The use of the symbol "::" MUST be used to its maximum capability to reduce consecutive 16-bit 0 fields.

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