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Network-Hexagons:Geolocation Mobility Edge Network Based On H3 and LISP
draft-ietf-lisp-nexagon-45

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This is an older version of an Internet-Draft whose latest revision state is "Active".
Authors Sharon Barkai , Bruno Fernandez-Ruiz , Rotem Tamir , Alberto Rodriguez-Natal , Fabio Maino , Albert Cabellos-Aparicio , Dino Farinacci
Last updated 2022-12-24
Replaces draft-barkai-lisp-nexagon
RFC stream Internet Engineering Task Force (IETF)
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Stream WG state Submitted to IESG for Publication
Document shepherd Luigi Iannone
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draft-ietf-lisp-nexagon-45
LISP Working Group                                             S. Barkai
Internet-Draft                                         B. Fernandez-Ruiz
Intended status: Informational                                  R. Tamir
Expires: June 28,2023                                         Nexar Inc.
                                                      A. Rodriguez-Natal
                                                                F. Maino
                                                           Cisco Systems
                                                    A. Cabellos-Aparicio
                                                   J. Paillisse Vilanova
                                       Technical University of Catalonia
                                                            D. Farinacci
                                                             lispers.net
                                                      December 25, 2022

 Network-Hexagons:Geolocation Mobility Edge Network Based On H3 and LISP
                      draft-ietf-lisp-nexagon-45

Abstract

  This document describes a system that utilizes geospatial grid
  indexing and the Locator/ID Separation Protocol (LISP) to create a
  dynamic-mapping geolocation mobility network. The system uses a
  hierarchical H3 grid to calculate the high-resolution tile positions
  of detections and driven road-segments made by vehicles equipped with
  vision AI sensors using their global positioning coordinates. When
  these vehicles record driven road-segments or detect elements of
  interest, the system uses the grid tile ID of the detection or road
  segment as the basis for an IPv6 endpoint identifier (EID). These
  EIDs are the destination queues and channel sources for network
  addressable geolocation agents, or "nexagons". Nexagon agents
  consolidate detections from all vehicles in a given area, dynamically
  learn roads & conditions to support mapping & driving applications.

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
  Task Force (IETF).  Note that other groups may also distribute
  working documents as Internet-Drafts. The list of current Internet-
  Drafts is at https://datatracker.ietf.org/drafts/current/.

  Internet-Drafts are draft documents valid for a maximum of six months
  and may be updated, replaced, or obsoleted by other documents at any
  time.  It is inappropriate to use Internet-Drafts as reference
  material or to cite them other than as "work in progress."
  This Internet-Draft will expire on February 28,2023.

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Copyright Notice

  Copyright (c) 2022 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
  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.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   5
   3.  Deployment Assumptions  . . . . . . . . . . . . . . . . . . .   7
   4.  Clients-Agents Networking . . . . . . . . . . . . . . . . . .   8
   5.  Mobility Unicast and Multicast  . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   7.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  15
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  16
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
  10.  Normative References  . . . . . . . . . . . . . . . . . . . .  29
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  30

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1.  Introduction

  This document describes a system that utilizes geospatial grid
  indexing and the Locator/ID Separation Protocol (LISP) to create a
  dynamic-mapping geolocation mobility network. The system uses a
  hierarchical H3 grid to calculate the high-resolution tile positions
  of detections and driven road-segments made by vehicles equipped with
  vision AI sensors using their global positioning coordinates. When
  these vehicles record driven road segments or detect elements of
  interest, the system uses the grid tile ID of the detection or road
  segment as the basis for an IPv6 endpoint identifier (EID). These
  EIDs are the destination queues and channel sources for network
  addressable geolocation agents, or "nexagons". Nexagon agents
  consolidate detections from all vehicles in a given area, dynamically
  learn roads & conditions to support mapping & driving applications.
  The mobility network is constructed using LISP, which allows it to
  address nexagon-agents using EIDs based on low-resolution hexagonal
  areas containing high-resolution detection tiles. Nexagon-agents are
  delegated dynamically to compute locations to consolidate vehicle
  uploads and client subscriptions based on vehicle density and road
  activity levels. The inherit dynamics of vehicle locations and
  densities can cause issues when consolidated across distributed edge
  compute locations, including cache incoherency of nexagon-agents IPs,
  context-switching between nexagon by vehicles while driving,
  geo-privacy violations and tracking of vehicles interacting with
  nexagon-agents, continuity and scalability of subscriptions. To
  resolve these issues, the system uses LISP EID addressing to
  virtualize communication between clients and nexagon agents,
  utilizing algorithmic addressing based on geospatial grid identifiers
  and ephemeral client addressing. This enables dynamic resource
  allocation through delegation, resolution-less context-switching
  while driving, subscription continuity and scaling, and geo-privacy.

                                   ___
                                 /     \
                  Addressable >>  States  >> Addressable
                 Upload Queues   \ ___ /     Channels
                       /\      Functions()      \/

                     Figure 1: One Nexagon Schematics
   _  _    _  _
  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----         Peak/Off-Peak nexagon allocation
  / \/ \  / \/ \  ----        Spread on more compute locations
  \_/\_/  \_/\_/  ----       _  _    _  _    _  _    _  _
  / \/ \  / \/ \  ----      / \/ \  / \/ \  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----      \_/\_/  \_/\_/  \_/\_/  \_/\_/  ----
  / \/ \  / \/ \  ----      / \/ \  / \/ \  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----      \_/\_/  \_/\_/  \_/\_/  \_/\_/  ----
   ^  ^    ^  ^   ^  ^       ^ ^     ^  ^    ^  ^    ^  ^   ^  ^
   Site   Site  Standby     Site    Site    Site    Site  Standby

Figure 2: Nexagon dynamic allocation through delegation per activity

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  Note 1: The nexagon agents in the system utilize a hierarchical
  hexagonal grid called [H3], which has clear tile adjacency properties.
  Each tile in the H3 grid has a unique 64-bit identifier called an
  HID, which is algorithmically mapped to an EID. The H3 grid is used
  at two different resolutions: one for the nexagons (called "h3.rB")
  and one for detections, navigation paths, and road segment mapping
  (called "h3.rS"). Mappings between GPS coordinates, HIDs, and EIDs
  are all algorithmic. The number of messages required to convey the
  state of a nexagon can be calculated based on the size of the area
  covered by the nexagon, the density of roads within it, and the
  maximum transmission unit (MTU) of the system. This calculation
  involves dividing the size of h3.rB by the size of h3.rS, multiplying
  by the road density and tile key-value state (16B), divided by MTU.

  Note 2: In order to provide a concrete usability of this document for
  detection and dynamic mapping, 64 bits of information about "what"
  the detection is are outlined with the 64-bit HID of "where" the \
  detection is, total 128 bits or 16 Bytes. These 64 bits are detailed
  in a bit-mask based on a taxonomy defined by Berkeley Deep Drive
  (BDD) and serve as a baseline that can be extended or overridden.

  Note 3: The mobility network requires a formal provisioning step for
  both clients and agents. For clients, this step involves an
  authentication, authorization, and accounting (AAA) procedure by
  which clients request and renew EIDs and tunnel-routers to be used
  to interact with agents. This process may be implemented using
  various methods or formal AAA. An example procedure is given bellow.

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2. Definition of Terms

  Based on [RFC9300][RFC9301]

  H3AgentEID: H3AgentEID is an EID-addressable Geolocation agent,
    also known as a nexagon. It serves as a designated destination for
    geospatial detections and an (S,G) source of multicast themed
    detection channels. It has a LISP data-plane stack to encapsulate
    packets via ServerXTR.

  ServerXTR: ServerXTR is a data-plane only LISP protocol stack
    implementation that is co-located with the H3AgentEID process. It
    encapsulates and decapsulates packets to and from EdgeRTRs.

  MobilityClient: MobilityClient is an application that may be a part
    of a driving system, navigation, or gov-muni application,
    It has a LISP data-plane stack to encapsulate packets via ClientXTR.

  MobilityClientEID: MobilityClientEID is the IPv6 EID used by Mobility
    Clients. The destination of such packets are H3AgentEIDs. The EID
    format is assigned as part of the MobilityClient network AAA.

  ClientXTR: ClientXTR is a data-plane only LISP protocol stack
    implementation co-located with the Mobility Client application. It
    encapsulates and decapsulates packets to and from EdgeRTRs.

  EdgeRTR: The EdgeRTR network connects Mobility Clients to Agents and
    manages MobilityClientEIDs multicast registrations [RFC8378].
    EdgeRTRs aggregate Mobility Clients and Geolocation Agents using
    encapsulation to facilitate access to the mobility network from
    hosting providers and mobile providers. RTRs re-encapsulate packets
    from ClientXTRs and ServerXTRs, and remote RTRs. EdgeRTRs glean H3
    agent EIDs and MobilityClientEIDs when they decapsulate packets and
    store H3AgentEIDs and route locations (RLOCs) using map-caches.
    These mappings are registered to the LISP mapping system [RFC9301]
    and provisioned when Geolocation Agents are assigned EdgeRTRs.
    EdgeRTRs do not register MobilityClientEIDs. Enterprises may
    provide their own EdgeRTRs to protect geo-privacy.

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                                nexagons
                          ___                                  ___
   H3AgentEIDs     ___  /     \           H3AgentEIDs   ___  /     \
            ___  /     | h3.rB |                 ___  /     | h3.rB |
          /     | h3.rB \ ___ /                /     | h3.rB \ ___ /
         | h3.rB \ ___ /  sXTR                | h3.rB \ ___ /  sXTR
          \ ___ /  sXTR   ||                   \ ___ /  sXTR    ||
            sXTR   ||     ||                    sXTR     ||     ||
             ||    ||     ||                      ||     ||     ||
             ||    ||     ||                      ||     ||     ||
             = = = = = = EdgeRTR                 EdgeRTR = = = = =
                             ||  ((  ()     ))    ||
                         (  Underlays used for LISP  )
                        (      Mobility Network     )
                          ( ||  ((   (  )   ()  || )
                            ||                  ||
                = = = = = = =                     = = = = = = =
               ||                                             ||
            EdgeRTR                                         EdgeRTR
           ..    ..                                      ..      ..
          ..       ..                                  ..          ..
  ((((|))))    ((((|))))                         ((((|))))    ((((|))))
     /|\    RAN   /|\                               /|\    RAN   /|\

     ||                                                          ||
     ||                                       Queue uploads upstream
   Channel notifications downstream                              ||
     ||                   ___    ___    ___                      ||
     ||   << << << <<   /     \/     \/     \<<cXTR::MobilityClientB
     || - - - - - - - -  h3.rS  h3.rS  h3.rS - - - - - - - - - - - -
      MobilityClientA::cXTR >> \ ___ /\ ___ / >> >> >> >>  >>  >>

                       Figure 3: Nexagon Network

Figure 3 above describes:

  - MobilityClientA detections used by MobilityClientB
  - Clients: share information only via Geolocation agents
  - ClientXTR (cXTR):encapsulates packets over mobile access to EdgeRTR
  - ServerXTR (sXTR):encapsulates packets over metro area to EdgeRTR
  - Uploads: routed to appropriate Geolocation agent by EdgeRTRs
  - Notifications: from Geolocation agents replicated by EdgeRTRs

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3.  Deployment Assumptions

  Detections are enumerated in 16 fields x 16 enumerations. Nibbles are
  named using hexadecimal index according to the position where the most
  significant nibble has index 0. Enumeration based on [BDD] are defined
  in section 8.

    0       1       2       3       4       5       6       7
    +-------+-------+-------+-------+-------+-------+-------+-------+
    |-0-|-1-|-2-|-3-|-4-|-5-|-6-|-7-|-8-|-9-|-A-|-B-|-C-|-D-|-E-|-F-|
    |012301230123012301230123 Index  01230123012301230123012301230123
    +---------------------------------------------------------------+

            Figure 4: Nibble based detection enumeration

  The authorization of Mobility Clients to the mobility network is
  renewed while driving. The AAA procedure described below can be used
  as an example for obtaining EIDs and EdgeRTRs, and for enabling the
  use of the network. Diameter [RFC6733] based AAA can be used to
  accommodate a wide range of Mobility Clients, including vehicles,
  driving assists, navigation applications, and smart city applications.
  An example procedure for clients XTRs to use the mobility network:

   1) obtain the address of the mobility-network AAA using DNS
   2) obtain MobilityClientEIDs and EdgeRTRs from AAA procedure
   3) renewed periodically from AAA while using the network

     MobilityClient DomainNameServer    AAA Server   MobilityEdgeRTR
     |                    |                   |                    |
     | lookup AAA Server  |                   |                    |
     |------------------->|                   |                    |
     |<-------------------|                   |                    |
     |   AAA  Server IP   |                   |                    |
     |                    |                   |                    |
     |  Client identifier and credentials     |                    |
     |--------------------------------------->|                    |
     |                    |                   |Provision Client EID|
     |                    |                   |------------------->|
     |                    |                   |<-------------------|
     |                    |                   | Ack Provisioed EID |
     |  Send ClientEID,EdgeRTR RLOC           |                    |
     |<---------------------------------------|                    |
     .                                                             .
     .       Use The H3-LISP Geolocation Mobility Network          .
     .                                                             .
     |<----------------------------------------------------------->|
     .                                                             .
     .      Renew AAA ClientEID and EdgeRTR provisioning           .

        Figure 5: Example AAA procedure for mobility clients

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4. Clients-Agents Networking

  The mobility network functions as a standard LISP overlay that
  delivers unicast and multicast packets across data plane XTRs, which
  are used in the stack of each mobility client and server. ClientXTRs
  and ServerXTRs are associated with EdgeRTRs, which allows
  MobilityClients to "show up" at any location within the mobility
  network, regardless of the network provider or network address
  translation domain. This structure also enables any H3 agent EID to
  be instantiated, delegated, or failed over to any compute location.

  In this specification, we assume a semi-random association between
  ClientXTRs and EdgeRTRs assigned by the AAA procedure, with a pool of
  EdgeRTRs, which can be dynamically allocated, distributing the load
  of MobilityClients within a given metro area. We also assume that
  EdgeRTRs are topologically equivalent and use LISP to encapsulate
  traffic to and from other EdgeRTRs. It is possible for there to be
  more than one ClientEID in the same process using the same ClientXTR.
  The implementation of such vendor-specific multiplexing is not
  specified.

          H3AgentEID == ServerXTR        ServerXTR == H3AgentEID
    (Encryption and Decryption) ||       || (Encryption and Decryption)
                                ||   X   ||
                         EdgeRTR = = = = EdgeRTR
                                ||   X   ||
    (Encryption and Decryption) ||       || (Encryption and Decryption)
      MobilityClient == ClientXTR        ClientXTR == MobilityClient

  Figure 6: LISP network connecting MobilityClients and H3AgentEIDs

  The following Lisp Canonical Address Format (LCAF) [RFC8060] is used
  to encode H3-IDs into IPv6 address:

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |           AFI = 16387         |     Rsvd1     |     Flags     |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |Type = 17 HID  |     Rsvd2     |            Length = 8         |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |                             HID (high-order)                  |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |                             HID (low-order)                   |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

         Figure 7: LCAF for encoding HIDs in H3AgentEIDs

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5. Mobility Unicast and Multicast

  The day in a life of unicast detection or road-segment mapping upload:

  1. A client detects condition of interest using AI camera
  2. The client uses its GPS to establish its h3.rS location
  3. It then estimates the h3.rS location of the detection
  4. Detection h3.rS center is used to calculate h3.rB => H3ServerEID
  5. Client sends (encrypted) location-detection via its ClientXTR

    Outer Header src/dest: ClientXTR RLOC, EdgeRTR RLOC
    Inner Header src/dest: ClientEID, H3AgentEID

  6. EdgeRTR gleans and caches ClientEID and ClientXTR RLOC
  7. EdgeRTR resolves RLOC of remote EdgeRTR, and re-encapsulates:

    Outer Header src/dest: EdgeRTR RLOC, remote EdgeRTR RLOC
    Inner Header src/dest: ClientEID, H3AgentEID

  8. Remote EdgeRTR lookups H3ServerEID ServerXTR RLOC, re-encapsulates:

    Outer Header src/dest: EdgeRTR RLOC, ServerXTR RLOC
    Inner Header src/dest: ClientEID, H3AgentEID

  9. ServerXTR delivers ClientEID message to H3AgentEID

  The detection message headers consist of the following fields:

  - Outer headers size = 40 (IPv6) + 8 (UDP) + 8 (LISP) = 56
  - Inner headers size = 40 (IPv6) + 8 (UDP) + 4 (Nexagon Header) = 52
  - 1500 (MTU) - 56 - 52 = 1392 bytes of effective payload size

  Nexagon Header allows for key-value (kv) tuples or value-key,key
  ..(vkkk) using the same formats of key and value outlined bellow

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\
|  Type         |gzip |        Reserved         | Pair Count = X|Nexagon
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+/

                    Figure 8: Nexagon header format

  Nexagon Header Type 0:reserved (*)
   Type 1:key-value, key-value.. 1392 / (8 + 8) = 87 pairs
   Type 2:value, key,key,key.. (1392 - 8) / 8 = 173 h3.rS IDs
   Type 3-255: unassigned
  Nexagon Header GZIP field: 0x000 no compression, or (**) GZIP version.
  Nexagon Header Reserved bits
  Nexagon Header key and value count (in any format kv or vkkk)

  (*)  Reserved fields are specified as being set to 0 on transmission,
       ignored when received.
  (**) GZIP refers to entire kv or vkkk payload and major GZIP version,
       packets with unsupported GZIP version are dropped

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 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|Version| Traffic Class |           Flow Label                  |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|         Payload Length        |  Next Header  |   Hop Limit   |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|                                                               |  |
+                                                               +  |
|                                                               |  |
+                    Source MobilityClientEID                   +  |
|                                                               | IPv6
+                                                               +  |
|                                                               |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|                                                               |  |
+                                                               +  |
|                                                               |  |
+                       Dest H3AgentEID                       +  |
|                                                               |  |
+                                                               +  |
|                                                               | /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|       Source Port = xxxx      |       Dest Port = xxxx        | \
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ UDP
|           UDP Length          |        UDP Checksum           | /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|  Type         |gzip |        Reserved         | Pair Count = X|Nexagon
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ /
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit State                            +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit State                            +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

           Figure 9: Uploaded detections packet format


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  Each H3Agent is also an IP Multicast Source used to update
  subscribers on the state of the h3.rS tiles in the h3.rB area.
  We use [RFC8378] signal-free multicast to implement overlay channels.
  Mobility-networks have many channels with thousands subscribers each.
  MobilityClients driving through/subscribing to an h3.rB area issue
  group address report based on any mechanism supported by [RFC8378].
  Example report formats are specified in [RFC4604]. It is advised that
  clients establish a ring of objects on their areas of interest.
  Report messages are encapsulated between ClientXTRs and EdgeRTRs.

  The day in a life of multicast notification update:

  1. H3AgentEID determines change or timing requiring an update
  2. H3AgentEID sends (S,G) update message via its ServerXTR

     Outer Header src/dest: ServerXTR RLOC, EdgeRTR RLOC
     Inner Header (S,G): H3ServerEID, EID chosen for theme

  3. EdgeRTR resolves subscribed remote EdgeRTRs, replicates

     Outer Header src/dest: EdgeRTR RLOC, remote EdgeRTR RLOC
     Inner Header (S,G): H3ServerEID, EID chosen for theme

  4. EdgeRTRs lookups subscribed ClientEIDs ClientXTRs RLOCs, replicates

     Outer Header src/dest: EdgeRTR RLOC, ClientXTR RLOC
     Inner Header (S,G): H3ServerEID, EID chosen for theme

  5. ClientXTR delivers multicast channel update message to clientEID

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  Multicast update packets are of the following structure:

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|Version| Traffic Class |           Flow Label                  |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|         Payload Length        |  Next Header  |   Hop Limit   |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|                                                               |  |
+                                                               +  |
|                                                               |  |
+                      Source H3AgentEID                   +  |
|                                                               | IPv6
+                                                               +  |
|                                                               |  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+  |
|                                                               |  |
+                                                               +  |
|                                                               |  |
+                          Group Address                        +  |
|                                                               |  |
+                                                               +  |
|                                                               | /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|       Source Port = xxxx      |       Dest Port = xxxx        | \
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ UDP
|           UDP Length          |        UDP Checksum           | /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|                                                               |Nexagon
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ /
~                            Nexagons Payload                   ~
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

             Figure 10: multicast update packet header

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 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|  Type =   1   |gzip |        Reserved         | Pair Count = X|Nexagon
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ /
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit State                            +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit State                            +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

    Figure 11: multicast update payload, key-value, key-value..

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 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \
|  Type =   2   |gzip |     Reserved            |H3R15 Count = X|Nexagon
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ /
|                                                               |
+                       64bit State                            +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                       64bit h3.rS ID                        +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

 Figure 12: multicast update payload, value, key, key.. for larger areas

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6.  Security Considerations

  The LISP mobility-network is inherently secure and private.
  All information is conveyed to clients using provisioned Geolocation
  agents. MobilityClients receive information only via geospatial
  channels originating at provisioned agents, replicated by EdgeRTRs.
  All traffic is carried over encrypted encapsulation.

7.  Privacy Considerations

  In the mobility network, MobilityClients obtain temporary clientEIDs
  and RLOCs of EdgeRTRs through an AAA process in order to access the
  network for a certain period. The interface between MobilityClients
  and EdgeRTRs is the most sensitive from a privacy perspective, as the
  EdgeRTR can determine the client RLOC and the h3.rB area that the
  client is engaged with based on header information, even though the
  traffic on this interface is tunneled and the detection content is
  encrypted between ClientXTR and EdgeRTR. Enterprises such as vehicle
  OEMs or carriers can use their own EdgeRTRs (BYO_RTRs), which are pre-
  provisioned to use the mapping system and are approved by other
  EdgeRTRs. Beyond the client to EdgeRTR hop, the mapping system does
  not hold MobilityClientEID information and remote EdgeRTRs are only
  aware of clients' temporary EIDs. H3AgentEIDs decrypt and parse
  actual h3.rS detections, taking into account MobilityClientEID
  credentials encoded in the client EID and assigned by AAA to avoid
  poorly made or localized detections.

  In summary the privacy risk mitigations are:

  (1) tapping: all communications are through tunnels therefore
  may be encrypted using IP-Sec or other supported point to point
  underlay standards.

  (2) spoofing: it is very hard to guess a MobilityClientEID valid for
  a short period of time. Clients and H3Agents EIDs are provisioned
  in EdgeRTRs, Clients using the AAA procedure, H3Agents via dev-ops.

  (3) credibility: the interface crowd-sources geo-state and does not
  assume to trust single detections. Credit history track MobilityClient
  EIDs as part of normal H3Agents operation. The aggregate scores from
  all objects are delivered to AAA subsystem for updating credentials.

  (4) geo-privacy: Only EdgeRTRs are aware of both clients' RLOC and
  geo-location, only AAA is aware of client IDs credentials and credit
  but not geo-location. Ongoing client credit score adjustments span
  all H3Agents administratively to AAA without specific geo-source.

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7.  Acknowledgments

  We would like to kindly thank Joel Halperin for helping structure the
  AAA section and Geo-Privacy provisions, Luigi Lannone for promoting
  such LISP Compute First Networking (CFN) use-cases, helping structure
  the IANA section, and shepherding this draft to completion. We would
  like to thank George Ericson from Dell, Lei Zhong from Toyota, Mikael
  Klein from Ericsson, Leifeng Ruan from Intel, Ririn Andarini from NTT,
  for helping with Geolocation and Dataflow Virtualization terminology
  and key-issues during joint work at the AECC. We would like to thank
  Professor Trevor Darrel and Professor Fisher Yu of BDD for reviewing
  IANA enumerations for detections-consolidations feasible by visionAI
  and Edge Computing. Finally we would like to thank Isaac Brodsky, Nick
  Rabinowitz, David Ellis, and AJ Friend of the H3 steering committee
  for reviewing the use of the H3 grid in the lisp-nexagon network.

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8.  IANA Considerations

In accordance with BCP 26 [RFC8126].IANA is asked to create a registry
named NEXAGON with the following sub registries.
+-------+------------------------+-----------+
| Value | LISP LCAF Type Name    | Reference |
+-------+------------------------+-----------+
| 17    | H3 ID                  | Section 4 |
+-------+------------------------+-----------+
Nexagon Header Bits
+----------+------------------+----------+---------------------------+
| Spec     | IANA Name        | Bit      | Description               |
| Name     |                  | Position |                           |
+----------+------------------+----------+---------------------------+
| Type     | nexagon-type     | 0-7      | Type of key-value encoding|
| gzip     | nexagon-gzip     | 8-10     | gzip major version used   |
| PairCount| nexagon-paircount| 24-31    | key-value pair count      |
+----------+------------------+----------+---------------------------+
State Enumeration Field 0x0: Traffic Direction:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Lane North         | [This Document] |
|       |                    |                 |
| 0x2   | Lane North + 30    | [This Document] |
|       |                    |                 |
| 0x3   | Lane North + 60    | [This Document] |
|       |                    |                 |
| 0x4   | Lane North + 90    | [This Document] |
|       |                    |                 |
| 0x5   | Lane North + 120   | [This Document] |
|       |                    |                 |
| 0x6   | Lane North + 150   | [This Document] |
|       |                    |                 |
| 0x7   | Lane North + 180   | [This Document] |
|       |                    |                 |
| 0x8   | Lane North + 210   | [This Document] |
|       |                    |                 |
| 0x9   | Lane North + 240   | [This Document] |
|       |                    |                 |
| 0xA   | Lane North + 270   | [This Document] |
|       |                    |                 |
| 0xB   | Lane North + 300   | [This Document] |
|       |                    |                 |
| 0xC   | Lane North + 330   | [This Document] |
|       |                    |                 |
| 0xD   | Junction           | [This Document] |
|       |                    |                 |
| 0xE   | Shoulder           | [This Document] |
|       |                    |                 |
| 0xF   | Sidewalk           | [This Document] |
+-------+--------------------+-----------------+
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State Enumeration Field 0x1: Persistent Condition:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Pothole Light      | [This Document] |
|       |                    |                 |
| 0x2   | Pothole Deep       | [This Document] |
|       |                    |                 |
| 0x3   | Speed-bump Low     | [This Document] |
|       |                    |                 |
| 0x4   | Speed-bump High    | [This Document] |
|       |                    |                 |
| 0x5   | Icy                | [This Document] |
|       |                    |                 |
| 0x6   | Flooded            | [This Document] |
|       |                    |                 |
| 0x7   | Snow-cover         | [This Document] |
|       |                    |                 |
| 0x8   | Deep Snow          | [This Document] |
|       |                    |                 |
| 0x9   | Cone               | [This Document] |
|       |                    |                 |
| 0xA   | Gravel             | [This Document] |
|       |                    |                 |
| 0xB   | Choppy             | [This Document] |
|       |                    |                 |
| 0xC   | Blind-Curve        | [This Document] |
|       |                    |                 |
| 0xD   | Steep              | [This Document] |
|       |                    |                 |
| 0xE   | Low-bridge         | [This Document] |
|       |                    |                 |
| 0xF   | Other              | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x2: Transient Condition:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Jaywalker          | [This Document] |
|       |                    |                 |
| 0x2   | Bike or Scooter    | [This Document] |
|       |                    |                 |
| 0x3   | Stopped Vehicle    | [This Document] |
|       |                    |                 |
| 0x4   | Moving on Shoulder | [This Document] |
|       |                    |                 |
| 0x5   | First Responder    | [This Document] |
|       |                    |                 |
| 0x6   | Sudden Slowdown    | [This Document] |
|       |                    |                 |
| 0x7   | Oversize Vehicle   | [This Document] |
|       |                    |                 |
| 0x8   | Light/Sign Breach  | [This Document] |
|       |                    |                 |
| 0x9   | Collision Light    | [This Document] |
|       |                    |                 |
| 0xA   | Collision Severe   | [This Document] |
|       |                    |                 |
| 0xB   | Collision Debris   | [This Document] |
|       |                    |                 |
| 0xC   | Collision Course   | [This Document] |
|       |                    |                 |
| 0xD   | Vehicle Hard Brake | [This Document] |
|       |                    |                 |
| 0xE   | Vehicle Sharp Turn | [This Document] |
|       |                    |                 |
| 0xF   | Freed-up Parking   | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x3: Traffic-light Counter:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | 1 Second to Green  | [This Document] |
|       |                    |                 |
| 0x2   | 2 Second to Green  | [This Document] |
|       |                    |                 |
| 0x3   | 3 Second to Green  | [This Document] |
|       |                    |                 |
| 0x4   | 4 Second to Green  | [This Document] |
|       |                    |                 |
| 0x5   | 5 Second to Green  | [This Document] |
|       |                    |                 |
| 0x6   | 6 Second to Green  | [This Document] |
|       |                    |                 |
| 0x7   | 7 Second to Green  | [This Document] |
|       |                    |                 |
| 0x8   | 8 Second to Green  | [This Document] |
|       |                    |                 |
| 0x9   | 9 Second to Green  | [This Document] |
|       |                    |                 |
| 0xA   | 10 Second to Green | [This Document] |
|       |                    |                 |
| 0xB   | 20 Second to Green | [This Document] |
|       |                    |                 |
| 0xC   | 30 Second to Green | [This Document] |
|       |                    |                 |
| 0xD   | 60 Second to Green | [This Document] |
|       |                    |                 |
| 0xE   | Green Now          | [This Document] |
|       |                    |                 |
| 0xF   | Red Now            | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x4: Impacted Tile:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Epicenter          | [This Document] |
|       |                    |                 |
| 0x2   | 2 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x3   | 3 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x4   | 4 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x5   | 5 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x6   | 6 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x7   | 7 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x8   | 8 Tiles Away       | [This Document] |
|       |                    |                 |
| 0x9   | 9 Tiles Away       | [This Document] |
|       |                    |                 |
| 0xA   | 10 Tiles Away      | [This Document] |
|       |                    |                 |
| 0xB   | 20 Tiles Away      | [This Document] |
|       |                    |                 |
| 0xC   | 30 Tiles Away      | [This Document] |
|       |                    |                 |
| 0xD   | 60 Tiles Away      | [This Document] |
|       |                    |                 |
| 0xE   | <100 Tiles Away    | [This Document] |
|       |                    |                 |
| 0xF   | <200 Tiles Away    | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x5: Expected Duration:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Next 1 Second      | [This Document] |
|       |                    |                 |
| 0x2   | Next 5 Seconds     | [This Document] |
|       |                    |                 |
| 0x3   | Next 10 Seconds    | [This Document] |
|       |                    |                 |
| 0x4   | Next 20 Seconds    | [This Document] |
|       |                    |                 |
| 0x5   | Next 40 Seconds    | [This Document] |
|       |                    |                 |
| 0x6   | Next 60 Seconds    | [This Document] |
|       |                    |                 |
| 0x7   | Next 2 Minutes     | [This Document] |
|       |                    |                 |
| 0x8   | Next 3 Minutes     | [This Document] |
|       |                    |                 |
| 0x9   | Next 4 Minutes     | [This Document] |
|       |                    |                 |
| 0xA   | Next 5 Minutes     | [This Document] |
|       |                    |                 |
| 0xB   | Next 10 Minutes    | [This Document] |
|       |                    |                 |
| 0xC   | Next 15 Minutes    | [This Document] |
|       |                    |                 |
| 0xD   | Next 30 Minutes    | [This Document] |
|       |                    |                 |
| 0xE   | Next 60 Minutes    | [This Document] |
|       |                    |                 |
| 0xF   | Next 24 Hours      | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x6: Lane Right Sign:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Yield              | [This Document] |
|       |                    |                 |
| 0x2   | Speed Limit        | [This Document] |
|       |                    |                 |
| 0x3   | Straight Only      | [This Document] |
|       |                    |                 |
| 0x4   | No Straight        | [This Document] |
|       |                    |                 |
| 0x5   | Right Only         | [This Document] |
|       |                    |                 |
| 0x6   | No Right           | [This Document] |
|       |                    |                 |
| 0x7   | Left Only          | [This Document] |
|       |                    |                 |
| 0x8   | No Left            | [This Document] |
|       |                    |                 |
| 0x9   | Right Straight     | [This Document] |
|       |                    |                 |
| 0xA   | Left Straight      | [This Document] |
|       |                    |                 |
| 0xB   | No U Turn          | [This Document] |
|       |                    |                 |
| 0xC   | No Left or U       | [This Document] |
|       |                    |                 |
| 0xD   | Bike Lane          | [This Document] |
|       |                    |                 |
| 0xE   | HOV Lane           | [This Document] |
|       |                    |                 |
| 0xF   | Stop               | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x7: Movement Sign:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Keep Right         | [This Document] |
|       |                    |                 |
| 0x2   | Keep Left          | [This Document] |
|       |                    |                 |
| 0x3   | Stay in Lane       | [This Document] |
|       |                    |                 |
| 0x4   | Do Not Enter       | [This Document] |
|       |                    |                 |
| 0x5   | No Trucks          | [This Document] |
|       |                    |                 |
| 0x6   | No Bikes           | [This Document] |
|       |                    |                 |
| 0x7   | No Peds            | [This Document] |
|       |                    |                 |
| 0x8   | One Way            | [This Document] |
|       |                    |                 |
| 0x9   | Parking            | [This Document] |
|       |                    |                 |
| 0xA   | No Parking         | [This Document] |
|       |                    |                 |
| 0xB   | No Standing        | [This Document] |
|       |                    |                 |
| 0xC   | No Passing         | [This Document] |
|       |                    |                 |
| 0xD   | Loading Zone       | [This Document] |
|       |                    |                 |
| 0xE   | Rail Crossing      | [This Document] |
|       |                    |                 |
| 0xF   | School Zone        | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x8: Curves & Intersections:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | Turns Left         | [This Document] |
|       |                    |                 |
| 0x2   | Turns Right        | [This Document] |
|       |                    |                 |
| 0x3   | Curves Left        | [This Document] |
|       |                    |                 |
| 0x4   | Curves Right       | [This Document] |
|       |                    |                 |
| 0x5   | Reverses Left      | [This Document] |
|       |                    |                 |
| 0x6   | Reverses Right     | [This Document] |
|       |                    |                 |
| 0x7   | Winding Road       | [This Document] |
|       |                    |                 |
| 0x8   | Hair Pin           | [This Document] |
|       |                    |                 |
| 0x9   | Pretzel Turn       | [This Document] |
|       |                    |                 |
| 0xA   | Cross Roads        | [This Document] |
|       |                    |                 |
| 0xB   | Cross T            | [This Document] |
|       |                    |                 |
| 0xC   | Cross Y            | [This Document] |
|       |                    |                 |
| 0xD   | Circle             | [This Document] |
|       |                    |                 |
| 0xE   | Lane Ends          | [This Document] |
|       |                    |                 |
| 0xF   | Road Narrows       | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0x9: Tile Traffic Speed:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | < 1 m/sec          | [This Document] |
|       |                    |                 |
| 0x2   | < 2 m/sec          | [This Document] |
|       |                    |                 |
| 0x3   | < 3 m/sec          | [This Document] |
|       |                    |                 |
| 0x4   | < 4 m/sec          | [This Document] |
|       |                    |                 |
| 0x5   | < 5 m/sec          | [This Document] |
|       |                    |                 |
| 0x6   | < 6 m/sec          | [This Document] |
|       |                    |                 |
| 0x7   | < 7 m/sec          | [This Document] |
|       |                    |                 |
| 0x8   | < 8 m/sec          | [This Document] |
|       |                    |                 |
| 0x9   | < 9 m/sec          | [This Document] |
|       |                    |                 |
| 0xA   | < 10 m/sec         | [This Document] |
|       |                    |                 |
| 0xB   | < 20 m/sec         | [This Document] |
|       |                    |                 |
| 0xC   | < 30 m/sec         | [This Document] |
|       |                    |                 |
| 0xD   | < 40 m/sec         | [This Document] |
|       |                    |                 |
| 0xE   | < 50 m/sec         | [This Document] |
|       |                    |                 |
| 0xF   | > 50 m/sec         | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0xA: Pedestrian Curb Density:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | 100%               | [This Document] |
|       |                    |                 |
| 0x2   | 95%                | [This Document] |
|       |                    |                 |
| 0x3   | 90%                | [This Document] |
|       |                    |                 |
| 0x4   | 85%                | [This Document] |
|       |                    |                 |
| 0x5   | 80%                | [This Document] |
|       |                    |                 |
| 0x6   | 70%                | [This Document] |
|       |                    |                 |
| 0x7   | 60%                | [This Document] |
|       |                    |                 |
| 0x8   | 50%                | [This Document] |
|       |                    |                 |
| 0x9   | 40%                | [This Document] |
|       |                    |                 |
| 0xA   | 30%                | [This Document] |
|       |                    |                 |
| 0xB   | 20%                | [This Document] |
|       |                    |                 |
| 0xC   | 15%                | [This Document] |
|       |                    |                 |
| 0xD   | 10%                | [This Document] |
|       |                    |                 |
| 0xE   | 5%                 | [This Document] |
|       |                    |                 |
| 0xF   | No Peds            | [This Document] |
+-------+--------------------+-----------------+

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State Enumeration Field 0xB: Local Zone Speed Limit:
+-------+--------------------+-----------------+
| Value | Description        | Reference       |
+-------+--------------------+-----------------+
| 0x0   | Null               | [This Document] |
|       |                    |                 |
| 0x1   | 1 m/sec            | [This Document] |
|       |                    |                 |
| 0x2   | 2 m/sec            | [This Document] |
|       |                    |                 |
| 0x3   | 3 m/sec            | [This Document] |
|       |                    |                 |
| 0x4   | 4 m/sec            | [This Document] |
|       |                    |                 |
| 0x5   | 5 m/sec            | [This Document] |
|       |                    |                 |
| 0x6   | 6 m/sec            | [This Document] |
|       |                    |                 |
| 0x7   | 7 m/sec            | [This Document] |
|       |                    |                 |
| 0x8   | 8 m/sec            | [This Document] |
|       |                    |                 |
| 0x9   | 9 m/sec            | [This Document] |
|       |                    |                 |
| 0xA   | 10 m/sec           | [This Document] |
|       |                    |                 |
| 0xB   | 15 m/sec           | [This Document] |
|       |                    |                 |
| 0xC   | 20 m/sec           | [This Document] |
|       |                    |                 |
| 0xD   | 25 m/sec           | [This Document] |
|       |                    |                 |
| 0xE   | 30 m/sec           | [This Document] |
|       |                    |                 |
| 0xF   | 35 m/sec           | [This Document] |
+-------+--------------------+-----------------+

State enumeration fields 0xC, 0xD, 0xE, 0xF, are unassigned.
IANA can assign them on a "First Come First Served" basis
according to [RFC8126].

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9.  Normative References

  [RFC9300] Farinacci, D., Fuller, V., Meyer, D., Lewis, D., and A.
              Cabellos, Ed., "The Locator/ID Separation Protocol (LISP)"
              , RFC 9300, DOI 10.17487/RFC9300,
              October 2022, <https://www.rfc-editor.org/info/rfc9300>.

  [RFC9301] Farinacci, D., Maino, F., Fuller, V., and A. Cabellos, Ed.,
              "Locator/ID Separation Protocol (LISP) Control Plane",
               RFC 9301, DOI 10.17487/RFC9301,
               October 2022, <https://www.rfc-editor.org/info/rfc9301>.

  [RFC4604]  Holbrook, H., Cain, B., and B. Haberman, "Using Internet
              Group Management Protocol Version 3 (IGMPv3) and Multicast
              Listener Discovery Protocol Version 2 (MLDv2) for Source-
              Specific Multicast", RFC 4604, DOI 10.17487/RFC4604,
              August 2006, <https://www.rfc-editor.org/info/rfc4604>.

  [RFC6733]  Fajardo, V., Ed., Arkko, J., Loughney, J., and G. Zorn,
              Ed., "Diameter Base Protocol", RFC 6733,
              DOI 10.17487/RFC6733, October 2012,
              <http://www.rfc-editor.org/info/rfc6733>.

  [RFC8126]  Cotton, M., Leiba, B., Narten, T., "Guidelines for
              Writing an IANA Considerations Section in RFCs", RFC8126,
              DOI 10.17487/RFC8126, June 2017,
              <https://www.rfc-editor.org/info/rfc8126>.

  [RFC8378]  Farinacci, D., Moreno, V., "Signal-Free Locator/ID
              Separation Protocol (LISP) Multicast", RFC8378,
              DOI 10.17487/RFC8378, May 2018,
              <https://www.rfc-editor.org/info/rfc8378>.

  [RFC8060]  Farinacci, D., Meyer, D., and J. Snijders, "LISP Canonical
              Address Format (LCAF)", RFC 8060, DOI 10.17487/RFC8060,
              February 2017, <http://www.rfc-editor.org/info/rfc8060>.

  [H3]       Uber Technologies Inc. [n.d.]. H3: Ubers Hexagonal
              Hierarchical Spatial Index, May 2021,
              <https://eng.uber.com/h3>.

  [BDD]      Fisher Yu, Wenqi Xian, Yingying Chen, Fangchen Liu, Mike
              Liao, Vashisht Madhavan, and Trevor Darrell. BDD100K: A
              diverse driving video database with scalable annotation
              tooling. arXiv:1805.04687, 2018. 2, 3
              <https://doi.org/10.48550/arXiv.1805.04687>

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Internet-Draft                    LISP                    December 2022

Authors' Addresses

   Sharon Barkai
   Nexar
   CA
   USA

   Email: sbarkai@gmail.com

   Bruno Fernandez-Ruiz
   Nexar
   London
   UK

   Email: b@getnexar.com

   Rotem Tamir
   Nexar
   Israel

   Email: rotemtamir@getnexar.com

   Alberto Rodriguez-Natal
   Cisco Systems
   170 Tasman Drive
   San Jose, CA
   USA

   Email: natal@cisco.com

   Fabio Maino
   Cisco Systems
   170 Tasman Drive
   San Jose, CA
   USA

   Email: fmaino@cisco.com

Barkai, et al.             Expires June 28,2023               [Page 30]

Internet-Draft                    LISP                    December 2022

   Albert Cabellos-Aparicio
   Technical University of Catalonia
   Barcelona
   Spain

   Email: acabello@ac.upc.edu

   Jordi Paillisse-Vilanova
   Technical University of Catalonia
   Barcelona
   Spain

   Email: jordip@ac.upc.edu

   Dino Farinacci
   lispers.net
   San Jose, CA
   USA

   Email: farinacci@gmail.com

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