RFC 3196, "Internet Printing Protocol/1.1: Implementor's Guide", November 2001

Errata ID: 3009
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Michael Sweet
Date Reported: 2011-11-02
Verifier Name: Peter Saint-Andre
Date Verified: 2011-11-12

Section 7.1 says:

   Connection  must-   must    must-  must    "close" only.  Both
                 if              if             client and server
                                                SHOULD keep a
                                                connection for the
                                                duration of a sequence
                                                of operations.  The
                                                client and server MUST
                                                include this header
                                                for the last operation
                                                in such a sequence.

It should say:

   Connection  must-   must    must-  must    "close" or "upgrade" only.  Both
                 if              if             client and server
                                                SHOULD keep a
                                                connection for the
                                                duration of a sequence
                                                of operations.  The
                                                client and server MUST
                                                include this header
                                                with the value "close"
                                                for the last operation
                                                in such a sequence,
                                                if known. The value
                                                "Upgrade" is used for
                                                TLS upgrade [RFC2817].

Notes:

Implementers guide does not include support for HTTP Upgrade [RFC2817].

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