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Multiservice Switching Forum (MSF) Input to the IETF Forwarding and Control Element

Multiservice Switching Forum (MSF) Input to the IETF Forwarding and Control Element Separation (ForCES) BOF. www.msforum.org. Signaling and Routing Protocols. Signaling and Routing Protocols. Signaling Protocols. Switch Controller. Other Controller. Media Gateway

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Multiservice Switching Forum (MSF) Input to the IETF Forwarding and Control Element

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  1. Multiservice Switching Forum (MSF) Input to the IETF Forwarding and Control Element Separation (ForCES) BOF www.msforum.org

  2. Signaling and Routing Protocols Signaling and Routing Protocols Signaling Protocols Switch Controller Other Controller Media Gateway Controller (MGC) MEGACO, H.248 Other Protocols GSMPv3 Forwarder, Switch, Router Media Gateway (MG) Switch N-ISDN ATM FR CES ATM MPLS IP ATM MPLS Voice Scope of MSF Architecture Relevant to ForCES

  3. Controller Management Switching and Adaptation Management Components of a Separated Architecture Processor Complex Signalling, Routing & Other Protocols Controller Process Controller Process Control Plane Management Plane 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. ServiceFeature Gateway Function Virtual Switch ControlFunction Logical Port Function Generic MSF Functional Architecture Application Plane sg sa ia Management Plane ix st Network Service Instance Control Function Signaling Gateway Function bc mb Sub-ordinate Management Function vscm ic Network Edge Control Function Bearer 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. Physical Router Control Component Bearer Control Function (LDP, OSPF) ic bs ic Virtual Switch ControlFunction vsc Port SCI Port sp sp Logical Port Function Logical Port Function ic(L2 and L3) ic(L2 and L3) Virtual Switch Function ia MPLS MPLS ia Port Physical Port Physical Physical Router Forwarding Component MSF Model Applied to Classical IP Router

  6. Application Services/ Features Policy/ Control Other Off Board 3rd Party Label Switch Router ATM MPLS On Board Controller Controller Controller MPLS Controller vsc sm Super-ordinate IP Management Port Function MPLS MPLS Switching Port Port Fabric ATM ATM Port Port Partitioning Function Mixed Separate & Integrated Scenario

  7. Default Routing Network Service Instance Control Function BGP4 connections per IP routing adjacency AS external view: BGP table ia Policy ia ia Inter AS BGP table: IP-prefix=> {IPadjacency}, Set of AS-path bc IGP connections per IP routing adjacency (RIP, OSPF, IS-IS etc.) Bearer Control Function (L3) AS Internal view: Routing table ic Total Routing table ic ic Intra AS Routing table: IP-prefix=> {IPadjacency}, NextHopIPadr Routing table: IPaddr.prefix => {IPadjacency}, Next hop IPaddr. bs Virtual Switch Control Function Forwarding table Forwarding table: IPaddr => {LPnr}, Next hop IPaddr. ARP table:Next hop IPaddr.=>MAC sp Download Physical Switch Bearer Control (L2) ic Local view: ARP table ARP LPnr=> SwPort Logical Port Logical Port Dest. MacAdr Dest. MacAdr IP-packet IP-packet LPnr NhIPadr IP-packet 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

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