FTT-SE, HaRTES and AVB Ins lvarez , Lus Almeida, Julin Proenza - - PowerPoint PPT Presentation

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FTT-SE, HaRTES and AVB Ins lvarez , Lus Almeida, Julin Proenza - - PowerPoint PPT Presentation

May 23, 2023 26 likes •260 views

A First Qualitative Comparison of the Admission Control in FTT-SE, HaRTES and AVB Ins lvarez , Lus Almeida, Julin Proenza Introduction Ethernet is gaining importance in automation, avionics and automotive. Multimedia &

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SLIDE 1

A First Qualitative Comparison of the Admission Control in FTT-SE, HaRTES and AVB

Inés Álvarez, Luís Almeida, Julián Proenza

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SLIDE 2

Introduction

  • Ethernet is gaining importance in automation, avionics

and automotive.

  • Multimedia & control traffic coexistence.
  • Diversity in size, intensity and timing of the traffic.
  • Ethernet lacks for real-time and adaptivity.
  • Flexible Time-Triggered and Audio Video Bridging.
  • Admission control is provides adaptivity.

In this paper we compare FTT and AVB Admission Control mechanisms in mono-hop networks.

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SLIDE 3

Flexible Time-Triggered

  • Time-triggered (synchronous) and event-triggered

(asynchronous) traffic.

  • Master/multi-slave architecture.
  • Communication done through streams.
  • Any slave can request the creation of streams.

COTS Switch S1 S2 S3 M

FTT-SE

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SLIDE 4

Flexible Time-Triggered

  • Time-triggered (synchronous) and event-triggered

(asynchronous) traffic.

  • Master/multi-slave architecture.
  • Communication done through streams.
  • Any slave can request the creation of streams.

S1 S2 S3 Switch M

HaRTES

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SLIDE 5

FTT - Switched Ethernet

Master and slaves connected though a COTS switch.

COTS Switch

S1 S2 S3 M

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SLIDE 6

COTS Switch

S1 S2 S3 M

Admission control: signalling of requests.

FTT - Switched Ethernet

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SLIDE 7

Admission control: signalling of requests.

FTT - Switched Ethernet

COTS Switch

S1 S2 S3 M

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SLIDE 8

Admission control: transmission of schedule

FTT - Switched Ethernet

COTS Switch

S1 S2 S3 M

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SLIDE 9

COTS Switch

S1 S2 S3 M

FTT - Switched Ethernet

Admission control: transmission of schedule

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SLIDE 10

COTS Switch

S1 S2 S3 M

FTT - Switched Ethernet

Admission control: slave request

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SLIDE 11

FTT - Switched Ethernet

COTS Switch

S1 S2 S3 M

Admission control : slave request

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SLIDE 12

FTT - Switched Ethernet

COTS Switch

S1 S2 S3 M

Admission control: master command

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SLIDE 13

COTS Switch

S1 S2 S3 M

FTT - Switched Ethernet

Admission control: master command

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SLIDE 14

HaRTES

Master embedded in the switch.

S1 S2 S3 Switch M

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SLIDE 15

Hard Real Time Ethernet Switching

S1 S2 S3 Switch M

Admission control: slave request

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SLIDE 16

Hard Real Time Ethernet Switching

S1 S2 S3 Switch M

Admission control: master command

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SLIDE 17

Audio Video Bridging

N1 N2 N3 AVB Switch

  • Set of standards that, among other things, provide

admission control.

  • Communication also done through streams.
  • Stream Reservation Protocol for Admission Control.
  • Creation of streams triggered only by the publisher.
  • The reservation of resources is done by the switch.
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Audio Video Bridging

N1 N2 N3 AVB Switch

Admission control: announcement of publisher

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Audio Video Bridging

N1 N2 N3 AVB Switch

Admission control: announcement of publisher

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Audio Video Bridging

Admission control: announcement of subscriber

N1 N2 N3 AVB Switch

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Audio Video Bridging

N1 N2 N3 AVB Switch

Admission control: announcement of subscriber

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SLIDE 22

Comparison

Compare reliability, flexibility and performance.

Reliability Flexibility Performance Trans. Faults Perm. Faults QoS change Class change Legacy nodes # messages FTT-SE      12 HaRTES      4 AVB      4

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SLIDE 23

Questions? Please meet me at the poster!