CCNinfo: Discovering Content and Network Information in Content-Centric Networks
draft-irtf-icnrg-ccninfo-00

Document Type Active Internet-Draft (icnrg RG)
Last updated 2018-10-08
Replaces draft-asaeda-icnrg-ccninfo
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ICN Research Group                                             H. Asaeda
Internet-Draft                                                      NICT
Intended status: Experimental                                    X. Shao
Expires: April 10, 2019                   Kitami Institute of Technology
                                                         October 7, 2018

CCNinfo: Discovering Content and Network Information in Content-Centric
                                Networks
                      draft-irtf-icnrg-ccninfo-00

Abstract

   This document describes a mechanism named "CCNinfo" that discovers
   information about the network topology and in-network cache in
   Content-Centric Networks (CCN).  CCNinfo investigates: 1) the CCN
   routing path information per name prefix, device name, and function/
   application, 2) the Round-Trip Time (RTT) between content forwarder
   and consumer, and 3) the states of in-network cache per name prefix.
   In addition, it discovers a gateway that supports different protocols
   such as CCN and Named-Data Networks (NDN).

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on April 10, 2019.

Copyright Notice

   Copyright (c) 2018 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Asaeda & Shao            Expires April 10, 2019                 [Page 1]
Internet-Draft                   CCNinfo                    October 2018

   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  CCNinfo Message Formats . . . . . . . . . . . . . . . . . . .   7
     3.1.  Request Message . . . . . . . . . . . . . . . . . . . . .   8
       3.1.1.  Request Block . . . . . . . . . . . . . . . . . . . .  10
       3.1.2.  Report Block  . . . . . . . . . . . . . . . . . . . .  12
     3.2.  Reply Message . . . . . . . . . . . . . . . . . . . . . .  14
       3.2.1.  Reply Block . . . . . . . . . . . . . . . . . . . . .  16
         3.2.1.1.  Reply Sub-Block . . . . . . . . . . . . . . . . .  16
   4.  CCNinfo User Behavior . . . . . . . . . . . . . . . . . . . .  19
     4.1.  Sending CCNinfo Request . . . . . . . . . . . . . . . . .  19
       4.1.1.  Gateway Discovery . . . . . . . . . . . . . . . . . .  19
       4.1.2.  Routing Path Information  . . . . . . . . . . . . . .  20
       4.1.3.  In-Network Cache Information  . . . . . . . . . . . .  20
     4.2.  Receiving CCNinfo Reply . . . . . . . . . . . . . . . . .  20
   5.  Router Behavior . . . . . . . . . . . . . . . . . . . . . . .  21
     5.1.  Receiving CCNinfo Request . . . . . . . . . . . . . . . .  21
       5.1.1.  Request Packet Verification . . . . . . . . . . . . .  21
       5.1.2.  Request Normal Processing . . . . . . . . . . . . . .  21
     5.2.  Forwarding CCNinfo Request  . . . . . . . . . . . . . . .  22
     5.3.  Sending CCNinfo Reply . . . . . . . . . . . . . . . . . .  23
     5.4.  Forwarding CCNinfo Reply  . . . . . . . . . . . . . . . .  24
   6.  Publisher Behavior  . . . . . . . . . . . . . . . . . . . . .  24
   7.  CCNinfo Termination . . . . . . . . . . . . . . . . . . . . .  25
     7.1.  Arriving at Publisher or Gateway  . . . . . . . . . . . .  25
     7.2.  Arriving at Router Having Cache . . . . . . . . . . . . .  25
     7.3.  No Route  . . . . . . . . . . . . . . . . . . . . . . . .  25
     7.4.  No Information  . . . . . . . . . . . . . . . . . . . . .  25
     7.5.  No Space  . . . . . . . . . . . . . . . . . . . . . . . .  25
     7.6.  Fatal Error . . . . . . . . . . . . . . . . . . . . . . .  25
     7.7.  CCNinfo Reply Timeout . . . . . . . . . . . . . . . . . .  26
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