MSRP++ for Stream Registration and Reservation

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1 MSRP++ for Stream Registration and Reservation Franz-Josef Goetz, Marcel Kiessling, Juergen Schmitt Siemens AG Intern Siemens AG 20XX Alle Rechte vorbehalten. IEEE Plenary, March 2016 siemens.com/answers

2 Why MSRP++? Recap MSRP++ for Stream Registration and Reservation Motivation Performance improvement and more streams Splitting information for registration (static) and reservation (dynamic) Additional parameters to support new TSN features New transport mechanism for distribute static and dynamic information Improved vectoring to support structuring Modular to support different registration and reservation models Part of (Industrial) User-Network-Interface (UNI) Page 2

3 Supporters Karl Weber (Beckhoff) Stephan Kehrer (Hirschmann Automation and Control) Oliver Kleineberg (Hirschmann Automation and Control) Chen Feng (Siemens) Franz-Josef Götz (Siemens) Marcel Kiessling (Siemens) Jürgen Schmitt (Siemens) Page 3

4 Performance improvement and more streams Splitting information for registration (static) and reservation (dynamic) MSRP++ Attributes for Registration and Reservation Advertise Failed MSRP DataFrameParameters StreamDA VLAN_identifier Tspec MaxFrameSize MaxIntervalFrames PriorityAndRank Data Frame Priority Rank State Ready,ReadyFailed, AskingFailed, DataFrameParameters StreamDA VLAN_identifier Tspec MaxFrameSize MaxIntervalFrames PriorityAndRank Data Frame Priority Rank FailureInformation Bridge ID Res. Failure Code Registration Stream Description Registration Transmit Coordination Diagnostic Information EdgeBridge-SystemID DataFrameParameters StreamDA C-VLAN Tspec MaxFrameSize MaxIntervalFrames Traffic Class Availability RankRegistration Latency TransmissionTime Earliest Latest State Ready,Failed, State Ready,ReadyFailed, AskingFailed, FailureInformation Res. Failure Code System ID Static attributes for Registration Dynamic attributes for Reservation as Key Using the Stream ID as a key for referencing the Stream description is important: - to split dynamic and static information - to gain smaller attributes for reservation Page 4

5 Performance improvement and more streams Additional parameters to support new TSN features Page 5 Registration Stream Description Registration Transmit Coordination Diagnostic Information MSRP++ EdgeBridge-SystemID DataFrameParameters StreamDA C-VLAN Tspec MaxFrameSize MaxIntervalFrames Traffic Class Availability RankRegistration Latency TransmissionTime Earliest Latest State Ready,Failed, State Ready,ReadyFailed, AskingFailed, FailureInformation Res. Failure Code System ID Additional parameters: Registration EdgeBridge-SystemID Stream Edge-Bridge identification C-VLAN Customer VLAN Traffic Class Configured stream traffic class Availability Specifies the requirement on recovery time. Registration Max Latency Required max. latency. Transmit Coordination Earliest transmission time Latest transmission time. State Stream of talker is in ready or failed state.

6 Performance improvement and more streams New transport mechanism for distribute static and dynamic information Proposal: Introducing different transport mechanisms which respect the different natures of static and dynamic stream attributes IS-IS-like: A IS-IS-like data-plane flooding mechanism on a spanning tree with IS-IS CSNP, PSNP synchronization mechanism for additional synchronization on link Link-Local IS-IS: An improved link-local (peer-to-peer) attribute propagation mechanism utilizing some IS-IS mechanisms on a link for synchronization (e.g. hold time, checksum, ) Page 6

7 Improved vectoring to support structuring Compressible part Individually encoded part Length First Value Vector FULL vectoring: All in First Value Latency Length Length Length (UID+1) State (UID+1) FailureInformation Ready,ReadyFailed, AskingFailed, (UID+1) State State Bridge ID Res. Failure Code PARTIAL vectoring: only is in FirstValue, others are individually encoded in vector Latency Length (UID+1) State Length (UID+1) State Ready,ReadyFailed, AskingFailed, State Length (UID+1) FailureInformation Bridge ID Res. Failure Code Using the Stream ID as a Key for referencing the Stream Description is important: - Vectoring based on Stream ID in each Attribute - separate Vectoring mechanism for each Attribute FULL or PARTIAL vectoring - Reduced size vs. increased probability - Use-case dependent probability of Vectoring Page 7

8 Modular to support different registration and reservation models typical usage within networks typical usage in end-stations and small networks Mechanism Registration Options Registration Stream Description Registration Transmit Coordination I I I I L L I I I L - Transport mechanism: I: IS-IS like L: Link-local IS-IS Reservation Diagnostic Information L L L - - L L L L - L L L L L Examples Option 1: IS-IS-like for registration and implicit reservation (e.g. ISIS SPB PCR) Option 4: IS-IS-like for registration and Link-Local IS-IS for reservation Option 5: Link-Local IS-IS for registration and reservation Page 8

9 Part of (industrial) User-Network-Interface (UNI) TSN End Station TSN Edge Bridge User-App User-App. T/L UNI TSN network... TSN MSRP++ MAD Port Link-Local Transport only MAD Port MAP Relay Stream Description State Latency MSRP++ (Link-Local IS-IS mechanism) as one protocol at UNI for stream registration and reservation between TSN end-stations and TSN network UNI Page 9

10 Next Steps! Who wants to be named as supporter for this PAR/CSD proposal? Vote for a new PAR/CSD for SRPv2 in next IEEE Interim! Page 10

Authors Franz-Josef Goetz Senior Key Expert System Communication Siemens AG PD TI AT 4 Gleiwitzer-Str. 555 90475 Nürnberg Phone: +49 (911) 895-3455 E-Mail: franz-josef.goetz@siemens.

11 Authors Franz-Josef Goetz Senior Key Expert System Communication Siemens AG PD TI AT 4 Gleiwitzer-Str Nürnberg Phone: +49 (911) franz-josef.goetz@siemens.com Jürgen Schmitt Architect Siemens AG PD TI AT 4 Gleiwitzer-Str Nürnberg Phone: +49 (911) juergen.jues.schmitt@siemens.com Marcel Kiessling Architect Siemens AG PD TI AT 4 Gleiwitzer-Str Nürnberg Phone: +49 (911) kiessling.marcel@siemens.com Page 11

MRP++ Transport Protocol for Registration MSP Transport Protocol for Reservation

MRP++ Transport Protocol for Registration MSP Transport Protocol for Reservation Proposal for splitting IEEE 802.1Qcc into several PAR s MRP++ Transport for Registration MSP Transport for Reservation Franz-Josef Goetz, Siemens AG Juergen Schmitt Siemens AG Marcel Kiessling Siemens