RFC 7139, "GMPLS Signaling Extensions for Control of Evolving G.709 Optical Transport Networks", March 2014Source of RFC: ccamp (rtg)
Errata ID: 3945
Publication Format(s) : TEXT
Reported By: Fred Gruman
Date Reported: 2014-04-02
Verifier Name: Adrian Farrel
Date Verified: 2014-04-11
Section 7 says:
For the ingress node, a Path message with SE style SHOULD also be sent for decreasing the ODUflex bandwidth.
It should say:
For the ingress node, a Path message with SE style MUST also be sent for decreasing the ODUflex bandwidth.
Section 7 requires that Shared Explicit (SE) MUST be used at the beginning when creating a resizable ODUflex connection. Thus, the SE style MUST also be used when signaling for bandwidth increase or decrease. The increase procedure mandates the use of SE style; however, the decrease procedure uses SHOULD. The decrease procedure should also make the SE signaling mandatory.
This change, that looks to be a change of substance, has been verified with the authors to be an editorial issue that was caused by not keeping the paragraphs in synch.