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Overview of Multiservice Switching Forum (MSF) Technical Activities and Direction. Dave McDysan, WorldCom Technical Committee Chair. MSF Organization. Board of Directors 11 People. Technical Committee Dave McDysan WorldCom. Marketing Awareness Committee Carol Waller Marconi.

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Overview of multiservice switching forum msf technical activities and direction

Overview of Multiservice Switching Forum (MSF)Technical Activities and Direction

Dave McDysan, WorldCom

Technical Committee Chair


Msf organization
MSF Organization

Board of Directors

11 People

Technical Committee

Dave McDysan

WorldCom

Marketing Awareness Committee

Carol Waller

Marconi

Liaison Committee

Larry Gabuzda

Lucent

Architecture WG

Mark Klerer

Nortel

Management Framework WG

Avri Doria

Nortel

Interoperability WG

Open

Switch Control WG

Simon Crosby

Cplane

Media Control WG

Petros Mouchtaris

Telcordia

MEGACO

Brian Rosen

Marconi

GSMP

Open


Msf technical committee charter
MSF Technical Committee Charter

  • Overall system and life-cycle view

    • Requirements, architecture, protocol specification, implementation details, facilitate interoperation

  • Leverage other standards bodies and activities wherever possible

  • Liaison with other standards bodies to communicate requirements, define protocols, co-sponsor events


1999 accomplishments
1999 Accomplishments

  • Media Gateway control requirements input to IETF/ITU-T MEGACO/H.248

  • Based switch control on IETF GSMP

  • Adopted concept of switch partitioning

  • Completed Straw Ballot of Release 1 Architecture Document

  • Established Interoperability Working Group


2000 accomplishments
2000 Accomplishments

  • Completed Final Ballot of Release 1 Architecture Document

  • Final Ballot for Switch Control (GSMP)

  • Co-hosted First MEGACO/H.248 Interoperability Event in August at UNH

  • Established Management Framework Working Group

  • Drafted Implementation Agreements for MEGACO/H.248


Overall 2001 objectives
Overall 2001 Objectives

  • Release 2 Incremental Architecture Documents

    • Application/ Management Plane

    • Extensions in support of Mobility

    • Extensions to support IP, MPLS

  • Media Control Implementation Agreements

    • MEGACO Profiles (Access, Trunking, Residential)

    • MEGACO Package (CAS)

    • MGC-MGC Protocols (BICC, SIP-T)


Overall 2001 objectives1
Overall 2001 Objectives

  • At least two Media Control Interoperability Events

  • Switch Partitioning Documents

    • MIB, Requirements

  • Technical Reports

  • Vendor White Papers

  • Liaisons to IETF, ITU, ISC, Others


Architecture charter
Architecture Charter

  • Define overall terminology and framework for the MSF, building upon Release 1 architecture document

  • Release 2

    • IP Support

    • MPLS Support

    • Mobility Support

    • Application Plane Architecture

    • Statistical Switch Partitioning (if possible)


Logical msf architecture

Application

Standard IN/Signaling APIs, Interfaces, and Protocols

Plane

...

Control

IP/MPLS

Voice/SS7

ATM/SVC

Plane

Controller

Controller

Controller

Switching

ManagementPlane

Multiservice

Switching Fabric (any switching principle)

Plane

...

Adaptation

Plane

Video

TDM

ATM

FR

TCP/IP

Voice

External

Interfaces/

Standard Physical and Logical Interfaces

Protocols

Logical MSF Architecture


Release 2 document structure
Release 2 Document Structure

  • Architectural Framework

    • Definitions, objectives, document structure,

  • Functional Architectural Framework

    • Separate document for IP, MPLS, Mobility, Application plane, etc.

  • Physical Architectural Mapping

  • Network Mapping w/ reference protocols

  • Service Example Call Flows


Architecture wg schedule
Architecture WG Schedule

  • Application Plane Functional Framework

    • Straw Ballot 9/01

    • Final Ballot 12/01

  • Mobility Functional Framework

    • Straw Ballot 9/01

    • Final Ballot 12/01

  • IP/MPLS Functional Framework

    • Straw Ballot 9/01

    • Final Ballot 12/01


Media control working group charter
Media Control Working Group Charter

  • MG-MG Interface

    • Media Gateway Control (MEGACO)/ H.248 Jointly developed by IETF & ITU-T

  • MGC-MGC Interface

    • Session Initiation Protocol (SIP) or Bearer Independent Call Control (BICC)

  • MGC-Telephony Interfaces

    • SS7, ISDN, Channel Associated Signaling (CAS), etc.


Media control functions and interfaces
Media Control Functions and Interfaces

SIP-T, BICC,

H.225

Media Gateway

Controller (MGC)

Media Gateway

Controller (MGC)

SS7,

ISUP

SS7,

ISUP

MEGACO/H.248

Trunking

Gateway

Trunking

Gateway

PSTN

PSTN

IP or ATM

Network

ISDN,

CAS

POTS, BRA,

SIP, H.323

Residential

Gateway

Access

Gateway

PBX

Media (VoIP, VoATM, TDM)

Signaling

MEGACO/H.248


Detailed Media Control Charter

  • MEGACO/H.248

    • MEGACO/H.248 Profile for Access Gateway/MGC

    • MEGACO/H.248 Profile for Trunking Gateway/MGC

    • MEGACO/H.248 Profile for Residential Gateway/MGC

    • CAS package (new work item)

  • ia reference point

    • SIP-T

    • BICC

  • Legal Intercept (new work item)

  • Management Interface for MGC and MG (inviting contributions) – To be done in conjunction with management framework working group

14


Media Control Schedule

  • MEGACO/H.248 Work Items

  • CAS Package (Added as a new work item)

    • Draft 2/01

    • Straw ballot 5/01

    • Final ballot 8/01

  • Two implementation agreements currently under development for MEGACO/H.248

    • MEGACO/H.248 Profile for Access Gateway/MGC

    • MEGACO/H.248 Profile for Trunking Gateway/MGC

  • Draft implementation Agreements available now

    • Straw ballot 5/01

    • Final ballot 8/01

  • MEGACO/H.248 Profile for Residential Gateway/MGC

    • TBD

15


Media Control Schedule (cont.)

  • ia reference point

  • BICC

    • BICC outline for implementation agreement (8/00)

    • Draft BICC Implementation Agreement (2/01)

    • Straw ballot BICC Implementation Agreement (5/01)

    • Final ballot BICC Implementation Agreement (8/01)

  • SIP-T

    • Draft SIP-T Implementation Agreement (11/00)

    • Straw ballot SIP-T Implementation Agreement (5/01)

    • Final ballot SIP-T Implementation Agreement (8/01)

16


Media Control Schedule (cont.)

  • Legal Intercept

    • New work item.

    • Invite contributions

    • Dates TBD until next meeting

  • Management Interface for MGC and MG (inviting contributions)

    • No progress to date.

    • Can the management group take it over?

17


Switch control charter
Switch Control Charter

  • General Switch Management Protocol (GSMP)

    • Specified jointly by MSF and IETF

    • Supports ATM, FR, MPLS connection establishment, termination, and status checking

    • Also provides means to configure interworking, where applicable

    • Circuit Emulation a planned future work item

  • Future scope/charter TBD

    • Optical switching?

    • Distributed router?


Switch control protocols and interfaces
Switch Control Protocols and Interfaces

Switch

Controller

Switch

Controller

Switch

Controller

Switch

Controller

General Switch

Management Protocol

(GSMP)

Logical

Partitions

Switch Partition

Management

Interface

Physical Switch

FR, ATM,

MPLS,

CES

FR, ATM,

MPLS,

CES

Multiservice Switch


Switch control schedule
Switch Control Schedule

  • Straw Ballot GSMP (without CES)

    • Approved 1/01

  • Final Ballot GSMP (with CES)

    • February, 2001

  • CES additions to GSMP – TBD?

    • Issue: No MSF contributions or member support for this effort. No effort in IETF either.


Management framework charter
Management Framework Charter

  • Management for Media and Switch Control Components

  • Initial Focus on MIB for Partition Management of GSMP-Controlled Switch

  • Next Major Efforts

    • Partition Management of a MEGACO Controlled Media Gateway

    • Partitioning of Virtual Routers


Switch partition management

Switch PartitioningManagement

Interface

Switch Control Interface (SCI)

Multiservice Switch

Switch Partition Management

Logical Switch Partitions

Switch Partitioning Function


Management framework schedule
Management Framework Schedule

  • Partitioning MIB

    • Straw Ballot – 6/01

    • Final Ballot – 9/01

  • General Partitioning Framework

    • Straw Ballot –9/01

    • Final Ballot – 12/01

  • MIB/PIB for MG & MGC management

    • TBD

  • MIB/PIB for partitioned MG (w/ Media Control)

    • TBD

  • MIB/PIB for partitioning Router

    • TBD


Interoperability
Interoperability

  • Three stage of interoperability testing

    • 1. Non-published Early Development Testing

      • Objective is clarifying interpretations of protocol specifications as related to overall MSS requirements

    • 2. Public Bake Off against MSF IAs

      • Overall system integration configuration

    • 3. Conformance/Compliance Testing

      • MSF “Stamp of Approval” To Be Determined


2001 interoperability plans
2001 Interoperability Plans

  • MEGACO/H.248 Interoperability Event co-sponsored with ISC 8/2000 at UNH

  • Next MEGACO/H.248 Interoperability Event targeted for Jan/Feb 2001

  • Plan to Sponsor MGC-MGC Interoperability Events

  • Plan to Sponsor GSMP Interoperability Events


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