CCNx Messages in TLV Format
draft-irtf-icnrg-ccnxmessages-04

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Last updated 2017-03-13
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ICNRG                                                           M. Mosko
Internet-Draft                                                PARC, Inc.
Intended status: Experimental                                   I. Solis
Expires: September 14, 2017                                     LinkedIn
                                                                 C. Wood
                                         University of California Irvine
                                                          March 13, 2017

                      CCNx Messages in TLV Format
                  draft-irtf-icnrg-ccnxmessages-04

Abstract

   This document specifies version "1" of CCNx message TLV packet
   format, including the TLV types used by each message element and the
   encoding of each value.  The semantics of CCNx messages follow the
   CCNx Semantics specification.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on September 14, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of

Mosko, et al.          Expires September 14, 2017               [Page 1]
Internet-Draft                  CCNx TLV                      March 2017

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Type-Length-Value (TLV) Packets . . . . . . . . . . . . . . .   4
     3.1.  Overall packet format . . . . . . . . . . . . . . . . . .   5
     3.2.  Fixed Headers . . . . . . . . . . . . . . . . . . . . . .   6
       3.2.1.  Interest Fixed Header . . . . . . . . . . . . . . . .   7
         3.2.1.1.  Interest HopLimit . . . . . . . . . . . . . . . .   8
       3.2.2.  Content Object Fixed Header . . . . . . . . . . . . .   8
       3.2.3.  InterestReturn Fixed Header . . . . . . . . . . . . .   8
         3.2.3.1.  InterestReturn HopLimit . . . . . . . . . . . . .   9
         3.2.3.2.  InterestReturn Flags  . . . . . . . . . . . . . .   9
         3.2.3.3.  Return Code . . . . . . . . . . . . . . . . . . .   9
     3.3.  Global Formats  . . . . . . . . . . . . . . . . . . . . .  10
       3.3.1.  Pad . . . . . . . . . . . . . . . . . . . . . . . . .  10
       3.3.2.  Organization Specific TLVs  . . . . . . . . . . . . .  11
       3.3.3.  Hash Format . . . . . . . . . . . . . . . . . . . . .  11
       3.3.4.  Link  . . . . . . . . . . . . . . . . . . . . . . . .  12
     3.4.  Hop-by-hop TLV headers  . . . . . . . . . . . . . . . . .  12
       3.4.1.  Interest Lifetime . . . . . . . . . . . . . . . . . .  13
       3.4.2.  Recommended Cache Time  . . . . . . . . . . . . . . .  13
       3.4.3.  Message Hash  . . . . . . . . . . . . . . . . . . . .  14
     3.5.  Top-Level Types . . . . . . . . . . . . . . . . . . . . .  15
     3.6.  CCNx Message  . . . . . . . . . . . . . . . . . . . . . .  15
       3.6.1.  Name  . . . . . . . . . . . . . . . . . . . . . . . .  16
         3.6.1.1.  Name Segments . . . . . . . . . . . . . . . . . .  17
         3.6.1.2.  Interest Payload ID . . . . . . . . . . . . . . .  18
       3.6.2.  Message TLVs  . . . . . . . . . . . . . . . . . . . .  19
         3.6.2.1.  Interest Message TLVs . . . . . . . . . . . . . .  19
         3.6.2.2.  Content Object Message TLVs . . . . . . . . . . .  20
       3.6.3.  Payload . . . . . . . . . . . . . . . . . . . . . . .  22
       3.6.4.  Validation  . . . . . . . . . . . . . . . . . . . . .  22
         3.6.4.1.  Validation Algorithm  . . . . . . . . . . . . . .  22
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