Protocolos IETF para IoT - Universidad de Palermo, UPIETF Day 2018 Taller del Grupo de Trabajo de...

IETF Day 2018 Taller del Grupo de Trabajo de Ingeniería de Internet/Argentina

Protocolos IETF para IoT

Auspiciado por

Gustavo MercadoFacultad Regional Mendoza

Universidad Tecnológica Nacional


Survey de Protocolos Normalizados por IETFpara Aplicaciones de Internet of Things (IoT)

Gustavo Mercado1, Carlos Tafernaberry1, Marcela Orbiscay12,Marcelo Ledda1, Raúl Moralejo1

1 gridTICs - Dpto Electrónica - UTN FRMRodriguez 273, Mendoza, Argentina

{gustavo.mercado}@gridtics.frm.utn.edu.ar

2 IANIGLA - Centro Científico Tecnológico - CONICET MendozaAv. Ruiz Leal s/n, Mendoza, Argentina

[email protected]


IoT(Internet of Things)



Everything that can be connected will be connected



Everything that can be connected will be connected

Adapt the Internet to different types of networks such as constrained

networks/nodes, e.g. send temperature in a 802.15.4 packet



Constraints Networks:

o low achievable bit rate/throughput

o high packet loss and high variability of packet

loss

o highly asymmetric link characteristics,

o limits on reachability over time

Constrained Nodes:

o Limits on power

o Memory

o Processing

resources

Everything that can be connected will be

connected





connected



Adapt IPv6




connected



Adapt IPv6 Modeling the

routing




connected




routing

Modeling the web

transfer




connected




routing

Modeling the web

transfer

Security, Mgmt




connected




routing

Modeling the web

transfer

Security, Mgmt

STANDARDS



Internet Engineering Task Force

https://ietf.org/


The goal of the The Internet Engineering Task

Force (IETF) is to make the Internet work better

Data Link(MAC + LLC)

Internet

Transport

Application

TCP/IP Stack

Physical

IETF

e.g. IEEE, 3GPP


The goal of the The Internet Engineering Task

Force (IETF) is to make the Internet work better

Data Link(MAC + LLC)

Internet

Transport

Application

TCP/IP Stack

Physical

IETF

e.g. IEEE, 3GPP

Applications and Real-

Time

General

Internet

Ops & Mgmt

Routing

Security

Transport

IRTF

Areas


IPv6 over Low Power Wireless Personal Area Networks (6LoWPAN) aims

IPv6 Payload

6LoWPAN

to compress the IPv6 header

http://www.reckorder.com/wp-content/uploads/2011/03/compressdata.jpg


IPv6 over Networks of Resource-constrained Nodes (6Lo) WG

aims to extend 6LoWPAN to different technologies

- RFC 7428: Transmission of IPv6 Packets over ITU-T G.9959 Networks

- RFC 7668: IPv6 over BLUETOOTH(R) Low Energy

− IPv6 over Bluetooth Low Energy Mesh Networks● draft-ietf-6lo-blemesh-01

- Transmission of IPv6 Packets over Near Field Communication

- An Update to 6LoWPAN ND

Bluetooth LE Physical

Bluetooth LE Link Layer

Bluetooth LE L2CAP

6Lo for Bt LE MeshATT

GATT

IPSS

IPv6 | routing

UDP/TCP/other

Application

Activities - Digital Protocol - RF Analog

IPv6-LLCP Binding

Logical Link Control Protocol (LLCP)

Adaptation Layer for IPv6 over NFC

IPv6

Upper Layer Protocol


Who else is playing

with 6LoWPAN?


Who else is playing

with 6LoWPAN?

IPv6 over the TSCH mode of IEEE 802.15.4e

(6tisch)


Who else is playing

with 6LoWPAN?

6LoWPAN adaptation and

compression (HC)

6top

IEEE802.15.4 TSCH

IPv6

UDP ICMP

COMI

CoAP / DTLS

(PAN

A)

6LoW

PAN

NDRPL


(6tisch)

6TiSCH Operation sublayer (6top) provides

a set of commands for upper layers to set

up specific schedules

Time is divided in Slots in TSCH

Channel Hopping in TSCH transmit in

different channels

Industrial Networks


Who else is playing

with 6LoWPAN?


compression (HC)

6top

IEEE802.15.4 TSCH

IPv6

UDP ICMP

COMI

CoAP / DTLS

(PAN

A)

6LoW

PAN

NDRPL

IPv6 over Low Power Wide-Area Networks

(lpwan)


(6tisch)






different channels

Industrial Networks


Who else is playing

with 6LoWPAN?


compression (HC)

6top

IEEE802.15.4 TSCH

IPv6

UDP ICMP

COMI

CoAP / DTLS

(PAN

A)

6LoW

PAN

NDRPL

The Working Group will focus on enabling IPv6 connectivity over

the following selection of Low-Power Wide-Area technologies: SIGFOX,

LoRa, WI-SUN and NB-IOT.

LPWAN Static Context Header Compression (SCHC) and fragmentation

for IPv6 and UDP - draft-ietf-lpwan-ipv6-static-context-hc-03

IPv6 over Low Power Wide-Area Networks

(lpwan)


(6tisch)






different channels

Industrial Networks



connected




routing

Modeling the web

transfer

Security, Mgmt


ROLL ( Routing over

Low-Power and

Lossy Networks)

RPL ( IPv6 Routing Protocol for

Low-Power and Lossy Networks)


ROLL WG


ROLL WG

RPL

developed


DODAGDirected

Acyclic

Graph 6LN (6LowPAN Node )

6LR (6LowPAN Router)

6LBR(6LowPAN Border Router) ROLL WG

RPL

developed topology

Destination-Oriented DAG


How we form the topology?

DODAGDirected

Acyclic




RPL

developed topology




Through Control Messages

DODAGDirected

Acyclic




RPL

developed topology





DODAGDirected

Acyclic

Graph

How I send the messages?

6LN (6LowPAN Node )



RPL

developed topology





RPL Control message is a ICMPv6 message

DODAGDirected

Acyclic

Graph


6LN (6LowPAN Node )



RPL

developed topology






DODAGDirected

Acyclic

Graph

What types of messages we need?


6LN (6LowPAN Node )



RPL

developed topology






DODAGDirected

Acyclic

Graph


To Request information to join the

topology - DIS


6LN (6LowPAN Node )



RPL

developed topology





DODAGDirected

Acyclic

Graph



topology - DIS

To be able to send messages upwards

- DIO


6LN (6LowPAN Node )



RPL

developed topology





DODAGDirected

Acyclic

Graph



topology - DIS


- DIO


6LN (6LowPAN Node )



RPL

developed topology

To be able to send messages downwards

DAO





DODAGDirected

Acyclic

Graph



topology - DIS


- DIO


DAO

To send the messages in a secure way


6LN (6LowPAN Node )



RPL

developed topology





DODAGDirected

Acyclic

Graph



topology - DIS


- DIO


DAO



How a node

pick up a parent

6LN (6LowPAN Node )



RPL

developed topology





DODAGDirected

Acyclic

Graph



topology - DIS


- DIO


DAO



How a node

pick up a parent

Objective Function (OF) Define how RPL nodes select and optimize routes within a RPL Instance

Define how nodes translate one or more metrics into a rank.

Define how nodes select parents

6LN (6LowPAN Node )



RPL

developed topology



connected




routing

Modeling the web

transfer

Security, Mgmt


ROLL ( Routing over

Low-Power and

Lossy Networks)



Core (

Constrained

RESTful

Environments)

CoAP (The Constrained

Application Protocol)


Application

Request/Response

Messages

UDP

Ver

Token (if any, TKL bytes) ...

TKL Code Message ID

Options (if any) ...

1 1 1 1 1 1 1 1 Payload (if any) ...

T

CoAPdeveloped

RESTful protocol:

-Client/server & Request/Response

- GET, POST, PUT, DELETE, PATCH, iPATCH, FETCH methods

URI = host + port + path + query componentThe well-know URI: GET coap://[ipv6address]/.well-know/core

Resource Discovery → Resource Directory

(RD)

4 bytes Header

core WG


Application

Request/Response

Messages

UDP

Ver

Token (if any, TKL bytes) ...

TKL Code Message ID

Options (if any) ...

1 1 1 1 1 1 1 1 Payload (if any) ...

T

Messages Types: CON, NON, ACK,

RESET

Confirmable

(CON)

Non-Confirmable

(NON)

CoAPdeveloped

RESTful protocol:

-Client/server & Request/Response

- GET, POST, PUT, DELETE, PATCH, iPATCH, FETCH methods

URI = host + port + path + query componentThe well-know URI: GET coap://[ipv6address]/.well-know/core

Resource Discovery → Resource Directory

(RD)

4 bytes Header

core WG



connected




routing

Modeling the web

transfer

Security, Mgmt


ROLL ( Routing over

Low-Power and

Lossy Networks)



Core (

Constrained

RESTful

Environments)

CoAP (The Constrained

Application Protocol)

DTLS

Comi/CoOL


RFC 7925: Transport Layer Security (TLS) /Datagram Transport

Layer Security (DTLS) Profiles for the Internet of Things –

SECURITY

Authentication and Authorization for Constrained Environments

(ACE) – ace WG

Practical Considerations and Implementation Experiences in

Securing Smart Object Networks

dice WG

ace WG

lwig WG

core WG

Object Security of CoAP (OSCOAP)

A Security Threat Analysis for the Routing Protocol for

Low-Power and Lossy Networks (RPLs)

ROLL WG


Agradecimiento

• Se agradece el auspicio de ISOC e ISOC Ar, por hacer posible el IETF DAy

• Para hacerse miembro de estas instituciones, puede ingresar en:

www.internetsociety.org

www.isoc.org.ar

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