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1
Multiservice Switching Forum (MSF) Input to the
IETF Forwarding and Control Element Separation
(ForCES) BOF
www.msforum.org
2
Scope of MSF Architecture
Relevant to ForCES
3
Components of a Separated Architecture
Processor Complex
Signalling, Routing Other Protocols
Controller Process
Control Plane
Management Plane
Controller Process
Protocol(s) and Interface(s) Addressed by MSF
Augmentation to Management Protocols
Switching Fabric
Switching Plane
Management Plane
Adaptation Plane
IP Port
ATM Port
OtherPorts
Management Complex
Switching (Forwarding) Complex
4
Generic MSF Functional Architecture
Application Plane
sg
sa
ia
st
ix
Management Plane
Network Service Instance Control Function
Signaling Gateway
Function
bc
mb
Sub-ordinate Management Function
vscm
ic
Bearer Control Function
Network Edge Control Function
Control Plane
bs
bs
vsm
sp
np
vsc
Switching Plane
sm
Super-ordinate Management Function
Virtual Switch Function
Adaptation Plane
Partitioning Function
Notes - Italicized reference points are not
considered open reference points for release 1. -
Bearer transport reference points are not shown.
- Management functions overlaid on
functional architecture The Partitioning
Function maintains partition integrity between
partitions of a partitioned entity.
5
MSF Model Applied to Classical IP Router
6
Mixed Separate Integrated Scenario
7
Forwarding Table in Classical IP Router
8
MSF Activities Relevant to ForCES

• Text corresponding to drawings and additional
  detail in MSF Architecture document at
  www.msforum.org
• MSF continuing to work on refining architectural
  model for separated IP-based services and
  applications
• MSF has contributed to IETF MEGACO and GSMP using
  IETF Internet Draft process, and may do so if
  ForCES is adopted via IETF as a working group