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Network-Hexagons:Geolocation Mobility Edge Network Based On H3 and LISP
draft-ietf-lisp-nexagon-44

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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 2022-12-23 (Latest revision 2022-12-22)
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-44
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-44

Abstract

  This document describes an interoperable system of Geolocation agents
  that utilizes virtual layer 3 routing and geospatial addressing to
  form a mobility-edge network. The network uses a hierarchical H3 grid
  to calculate the high-resolution tile positions of detections made by
  vehicles equipped with vision AI cameras using their GPS coordinates.
  When these vehicles detect elements of interest or map road segments,
  the system uses the 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 agents
  that consolidate detections from all vehicles in a given area.
  The mobility network is constructed using the Locator/ID Separation
  Protocol (LISP).

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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   5
   3.  Deployment Assumptions  . . . . . . . . . . . . . . . . . . .   7
   4.  Mobility 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

1.  Introduction

  This document describes an interoperable system of Geolocation agents
  that utilizes virtual layer 3 routing and geospatial addressing to
  form a mobility-edge network. The network uses a hierarchical H3 grid
  to calculate the high-resolution tile positions of detections made by
  vehicles equipped with vision AI cameras using their GPS coordinates.
  When these vehicles detect elements of interest or map road segments,
  the system uses the 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 agents
  that consolidate detections from all vehicles in a given area.
  The mobility network is constructed using the Locator/ID Separation
  Protocol (LISP).The system utilizes addressable agents per hexagonal
  grid areas, referred to as "nexagons," which are dynamically delegated
  to compute locations to consolidate road activity, vehicle uploads,
  and client subscriptions. The dynamic location and density of vehicles
  can cause key issues, which are resolved by the use of LISP. These key
  issues include the dynamic delegation of agents, resulting in cache
  incoherency of Geolocation IPs; context-switching of Geolocation IPs
  by vehicles while driving across geospatial areas; geo-privacy
  violations and tracking of vehicles interacting with Geolocation
  agents; and continuity and scalability of Geolocation subscriptions.

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  The key issues related to the dynamics of vehicles and clients are
  resolved using LISP EID addressing. This addressing virtualizes the
  communication between clients and agents, utilizes algorithmic
  Geolocation addressing based on geospatial grid identifiers and
  ephemeral client addressing based on an authorization procedure.
  Geolocation addressing of agents' queues and channels helps to solve
  the portability of agents, therefore enables dynamic resource
  allocation and context-switching. Client EIDs enables subscription
  continuity, notification scaling, and geo-privacy.

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

                 Figure 1: Geolocation Agents (nexagons)

Off-Peak Nexagon Allocation
Agents packed on less compute
   _  _    _  _
  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----           Peak Nexagon Allocation
  / \/ \  / \/ \  ----      Agents spread on more compute locations
  \_/\_/  \_/\_/  ----       _  _    _  _    _  _    _  _
  / \/ \  / \/ \  ----      / \/ \  / \/ \  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----      \_/\_/  \_/\_/  \_/\_/  \_/\_/  ----
  / \/ \  / \/ \  ----      / \/ \  / \/ \  / \/ \  / \/ \  ----
  \_/\_/  \_/\_/  ----      \_/\_/  \_/\_/  \_/\_/  \_/\_/  ----
   ^  ^    ^  ^   ^  ^       ^ ^     ^  ^    ^  ^    ^  ^   ^  ^
   Site   Site  Standby     Site    Site    Site    Site  Standby

Figure 2: Geolocation Agents dynamic allocation per geospatial activity

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  Note 1: nexagon agents are based on a grid called [H3], which is a
  hierarchical hexagonal grid with clear tile adjacency properties. Each
  tile in the H3 grid has a unique 64-bit identifier called an HID,
  which is algorithmically mapped to EID. The H3 grid is used at two
  different resolutions: one for the nexagons (called "h3.rB") and one
  for detections and road segment mapping (called "h3.rS"). Mappings
  between GPS coordinates, HIDs, and EIDs are all algorithmic. The
  number of messages needed to convey the state of a nexagon can be
  calculated based on the size of 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 then dividing by the MTU.

  Note 2: 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 a formal AAA agent. An example AAA procedure is described
  later in a life-cycle example.

  Note 3: In order to provide a concrete usability of this document
  for detection and dynamic road discovery, 64 bits of information about
  "what" the detection is are outlined with the 64-bit HID of "where" 
  the detection is. 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 as needed.

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2. Definition of Terms

  Based on [RFC9300][RFC9301]

  H3SAgentEID: Is an EID addressable Geolocation agent or nexagon.
     It is a designated destination for geospatial detections,
     and an (S,G) source of multicast of themed detection channels.
     It has a light-weight LISP protocol stack to tunnel packets
     via ServerXTR. The EID is IPv6 and contains HID in the lower bits.

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

  MobilityClient: Is an application that may be a part of a vehicle
     system, part of a navigation application, gov-muni application etc.
     It has light-weight LISP data-plane stack to packets via ClientXTR.

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

  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 accessing 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 = = = = =
                             ||  ((  ()     ))    ||
                         (    Geolocation LISP      )
                        (      Mobility Network     )
                          ( ||  ((   (  )   ()  || )
                            ||                  ||
                = = = = = = =                     = = = = = = =
               ||                                             ||
            EdgeRTR                                         EdgeRTR
           ..    ..                                      ..      ..
          ..       ..                                  ..          ..
  ((((|))))    ((((|))))                         ((((|))))    ((((|))))
     /|\    RAN   /|\                               /|\    RAN   /|\

     ||                                                          ||
   Uploads Upstream                                              ||
   Channels Downstream                                           ||
     ||                   ___    ___    ___                      ||
     ||   << << << <<   /     \/     \/     \<<cXTR::MobilityClientB
     || - - - - - - - -  h3.rS  h3.rS  h3.rS - - - - - - - - - - - -
      MobilityClientA::cXTR >> \ ___ /\ ___ / >> >> >> >>  >>  >>

         Figure 3: Geolocation clients and agents communication

Figure 3 above describes:

  - MobilityClientA detections used by MobilityClientB, and vice versa
  - Clients: share information only via Geolocation agents
  - ClientXTR (cXTR):encapsulates packets over access network to EdgeRTR
  - ServerXTR (sXTR):encapsulates packets over edge network to EdgeRTR
  - Uploads: routed to appropriate Geolocation agent by EdgeRTRs
  - Channels: originate from Geolocation agents replicated by EdgeRTRs

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3.  Deployment Assumptions

  I. We assume enumerated detections can be localized to h3.rS tiles

  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

  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.

  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. Mobility Clients-Agents Networking

  The mobility network functions as a standard LISP overlay delivering
  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 dynamicaly allocated, distributing the load of
  MobilityClients within a given metro area. We also assume 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 unspecified.

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

  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 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 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 tunnels.

7.  Privacy Considerations

  MobilityClients have no indication as to the origin of the raw data.
  In order to be able to use the mobility-network for a given period,
  the mobility clients go through a DNS/AAA stage by which they obtain
  temporary clientEID and RLOCs of EdgeRTRs.

  This MobilityClient to EdgeRTR interface is the most sensitive from
  privacy perspective. The traffic on this interface is tunneled, its
  detection content may be encrypted between ClientXTR to EdgeRTR.
  Still, the EdgeRTR will know based on headers the client RLOC, and
  the h3.rB area a client engages with.

  Enterprises such as vehicle OEMs or carriers can "bring their own"
  EdgeRTRs (BYO_RTR). BYO_RTRs are pre-provisioned to be able to use the
  mapping system and are put on the approved list of the other EdgeRTRs.
  A carrier offering EdgeRTR agents on multiaccess edge compute (MEC)
  is optimal for security and for traffic steering-replication.

  Beyond client to EdgeRTR hop, the mapping system does not hold
  MobilityClientEIDs info. Remote EdgeRTRs are only aware of clients
  temporary EIDs. When EdgeRTRs register in the mapping for channels,
  they do not register which clients use which EdgeRTR.

  The H3AgentEIDs decrypt and parse actual h3.rS detections. They also
  consider MobilityClientEID credentials encoded in the client EID and
  assigned by AAA. This helps avoid poorly made or localized detections.

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  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.

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

   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

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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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