Network Services Header Context Allocation Identifier
draft-vandevelde-sfc-nsh-length-overload-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Gunter Van de Velde , Martin Vigoureux , Praveen Muley | ||
| Last updated | 2017-04-20 (Latest revision 2016-10-17) | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
The specification of the NSH MD Type 1 header [draft-ietf-sfc-nsh] mandates four Context Headers, 4-byte each, and they MUST be added immediately following the Service Path Header. As direct consequence, an NSH MD Type 1 header is always Length 0x6 (six 4-byte words). As a result, the Length field of the NSH MD Type 1 header provides an information which is known by simply looking at the "MD Type" field. However, while [draft-ietf-sfc-nsh] does not specify the encoding of these Context Headers, other specifications have started to do so. A need to distinguish types of Context Headers therefore arises. This draft proposes to overload the Length field of an NSH MD Type 1 as Meta-Data context allocation identifier and to create a IANA repository for NSH MD Type 1 allocation schemes. The NSH MD Type 1 Length field overload intends to allow universal understanding at any network location and by any network device of the context allocation structure.
Authors
Gunter Van de Velde
Martin Vigoureux
Praveen Muley
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)