Bernhard, ipdvb WG,
There were two issues that were addressed at the IETF-61 meeting - This
is the second, the IANA considerations section.
Please give this prompt attention, it would be good to receive email
supporting this text or requesting clarification. When both issues are
complete the authors will be ready to submit the final edits to make rev
-03 of ULE (which will be put to WGLC).
Gorry
(as ULE Co-Author)
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2) IANA Considerations
To make things consistent throughout I replaced *all* mentions of
extensions
to say "Extension Header" (there were lots of variants :-(). The IANA also
provided helpful advice on registry format, and suggested the following
format for the registry 0 - which seemed good to me, have you
thoughts/opinions on this? Is this OK with you?
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IANA Guidelines
The following contains the IANA guidelines for management of the ULE
Next-Header registry. This registry allocates values decimal 0-512
(0x0000-0x01FF, hexadecimal). It MUST NOT allocate values greater than
0x01FF (decimal).
It subdivides the Next-Header registry in the following way:
1) 0-255 (decimal) IANA assigned values indicating Mandatory Extension
Headers (or link-dependent type fields) for ULE, requiring expert review
leading to prior issue of an IETF RFC. This specification must define the
value, and the name associated with the Extension Header. It must also
define the need for the extension and the intended use. The size of the
Extension Header must also be specified.
Assignments made in this document:
Type Name Reference
0: Test-SNDU Section 4.7.4.
1: Bridged-SNDU Section 4.7.5.
2) 256-511 (decimal) IANA assigned values indicating Optional Extension
Headers for ULE, requiring expert review leading to prior issue of an IETF
RFC. This specification must define the value, and the name associated with
the Extension Header. The entry must specify range of allowable H-LEN
values
that are permitted (in the range 1-5). It must also define the need for the
extension and the intended use.
Assignments made in this document:
Type Name H-LEN Reference
256: Extension-Padding 1-5 Section 5.