8. P-OTS: Don’t Forget About the Control Plane Control plane functions Automated LSP set up, tear down On-Demand provisioning Automated protection & restoration Link bundling Automated discovery Control plane benefits Reduced OPEX Facilitates network migration OAM negotiation Increased availability Quicker service set up time Reduced human errors New services Key application for service providers: ASON/GMPLS Control Plane Source: Infonetics, 2011
9. Multi-Layer Control Plane Multiple layers can include MPLS-TP transport service sublayer MPLS-TP transport sublayer TDM layer (ODU) WDM layer (OCh) GMPLS is common Carriers use only the layers needed
10. Multi-Layer Control Plane: Making it Work Client – Server model Common in our industry: see IETF, MEF, OIF UNI implementations Horizontal and vertical interoperability Source: OIF
11. Inter-Area Control Plane ConsiderationsPCE Optimal path calculated Optimal path calculated Optimal path calculated DomainB Domain C Domain A = PCE Server = PCE Protocol = TE Path More than just inter-area solution Lower CAPEX Optimal relocation of network intelligence Solves complex routing issues (WDM/OTN)
12. Summary Control plane has significant benefits Large demand by service providers P-OTS/OTN = Multi-layer Multi-layer control plane GMPLS is common across layers GMPLS standardized and well understood for years Inter-area and client-server considerations to be made
![Metaswitch Control Plane Expertise Previously Data Connection Ltd. (DCL) ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)