Emerging Control Plane Standards and the Impact on Optical Layer Services Thomas DiMicelli, Senior Product Manager Sycamore Networks

Communications Model Comparison Vendor BVendor A Network A Network B Optical Layer IP Layer Subnetwork BSubnetwork A Vendor BVendor A Network B Optical Layer IP Layer Subnetwork BSubnetwork A Vendor BVendor A Network A Network B Optical Layer IP Layer Subnetwork BSubnetwork A Vendor BVendor A Network B Optical Layer IP Layer Subnetwork BSubnetwork A OIF ModelGMPLS Models UNI NNI GMPLS Network A Client ASON/ASTN Model UNI NNI NE Subnetwork A1 NE Subnetwork A2 Network B ClientNE Subnetwork B1 NE Subnetwork B2 Control Plane Communication Points NE

Flexible Service Options Service Variables Customized Service Capabilities Rate Port-by-port software selectable SONET/SDH Rates STS-1/AU-3, OC-3/STM-1, OC-12/STM-4, OC-48/STM-16, OC-192/STM-64 Connection Protected Fixed Private Line, Unprotected Fixed Private Line, Protected Dynamic Private Line, Unprotected Dynamic Private Line Provisioning Signaled, SPC driven, Self Service, Policy, etc… Protection Local Restoration, Mesh Restoration, Un-restored, Client Protection, Diversely Routed... Management NMS/OSS, Customer Network Management SLA Optical SLA (mix of uptime, delay, restoration, etc)

Service Delivery Options UNI/NNI/GMPLS Service Cornerstones Bandwidth Services Protection and Restoration Optical Virtual Private Network Point and Click Manually Defined Path Point and Click Dynamically Defined Path Multi-rate TDM circuit and/or wavelength setup UNI/GMPLS-signaled wavelength service UNI/GMPLS-signaled TDM service UNI/GMPLS-signaled OVPN variations UNI/GMPLS-signaled Wavelength-level OVPN Uni/GMPLS-signaled Multi-pt/multi-rate OVPN Inter-carrier Dynamic Connection Service Delivery Options

Control Plane Service Creation via UNI/NNI Router OXC Automatic Connection Request ISP’s NOC Carrier’s NOC OXC UNI Domain 1 Domain 2 NNI Call Details, Circuit Info

1 + 1 Path Protected (50ms) Unprotected Mesh Protected O-VPN Private Line,“Gold” O-VPN Private Line, “Silver” SILVX Service Management O-VPN Best Effort Ethernet, “Bronze” Differentiated Service Classes

Next Steps and Summary  Positive progress in standards-based control plane protocols  Potential for enhancement to optical network remains compelling  Keys to ongoing progress: Continued effort in refining specifications Liaisons between standards organizations Development of service descriptions Test beds/test plans/test equipment OSS/NMS integration Protocol inter-working