Packet Optical SDN Field Trial for Multi-Layer Network Optimization
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Jim Theodoras’ presentation, broadcast live from 2016 Internet2 Global Summit in Chicago, covered the work that ADVA Optical Networking and Juniper Networks have accomplished towards interoperability of SDN controllers and outlined the advantages of joint SDN management of router and transport resources.
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Packet Optical SDN Field Trial for Multi-Layer Network Optimization
- 1. Packet-Optical SDN Field Trial for Multi-Layer Network Optimization Jim Theodoras May 2016
- 2. © 2016 ADVA Optical Networking. All rights reserved. Confidential.2 OSI Stack Physical PHY Data link MAC Network layer IP/MPLS Transport layer TCP, UDP Application presentation session Bottom of stack Top of stack Bits Frames Packets Segments Data 1 2 3 4 5 6 7 SDN
- 3. © 2016 ADVA Optical Networking. All rights reserved. Confidential.3 Northbound Rest API Use Cases Bandwidth calendaring: calendar bandwidth elastically anytime Premium path: constraint-based path optimization on latency, link utilization, nodal count, etc … Elastic TE bin packing: efficiently distribute traffic flows elastically across the network Path diversity: eliminate shared risk link groups Maintenance mode: continuous traffic optimization while maintaining SLAs during maintenance windows Autonomous Optimization: continuously compute new optimized paths NorthStar Controller • JUNOS: proven service provider OS • Built upon 25 years of proven network optimization algorithms • Predictability centralized traffic engineering • Open standards-based protocols and programmable APIs 1. Topology discovery – IGP, BGP (JUNOS OS) 2. Path computation – WANDL algorithms 3. Path installation - PCEP NorthStar Controller Juniper NorthStar WAN SDN Controller * Thomas Mueller, Juniper Networks, KINBERCON 2016
- 4. © 2016 ADVA Optical Networking. All rights reserved. Confidential.4 ADVA FSP Network Hypervisor • Network abstraction for SDN Northbound Network presentation • Virtual network segmentation and management • Multi-tenant management and policy • Provisioning, surveillance Function • Flexible northbound interfaces for multiple control environments • OpenFlow for SDN controller interface • REST for WAN controller interface (operator owned) • GUI, Tenant portals GUI REST NETCONF OpenFlow Tenant Portal Network Hypervisor Core User, tenant admin Topology inventory Provisioning Surveillance Interfaces Functions Unix, x86 Server Interfaces
- 5. © 2016 ADVA Optical Networking. All rights reserved. Confidential.5 Northstar Plus FSP 3000 Network Hypervisor ADVA’s Network Hypervisor provides an abstracted view of the Transport network towards Juniper’s NorthStar SDN Controller NorthStar Network Hypervisor Hypervisor Orchestration User interfaces 3rd party apps Transport apps Storage Compute Network Optical Network Programming • NorthStar provides the programmable forwarding plane • Packet layer is directly programmable • Network Hypervisor makes Optical layer programmable Resource Virtualization • Network Hypervisor abstracts the network into slices Function Virtualization • Local Hypervisor abstracts NE compute, storage resources into virtual machines • Applications deployed in DC and Network by Orchestration • Service chaining requires programming forwarding plane
- 6. © 2016 ADVA Optical Networking. All rights reserved. Confidential.6 • Abstract Links reflect diversity of server network • Server network connections may share fate • Multiple wavelengths which share the same fiber • Path computations in client network may require diversity • Abstract links must expose fate sharing of server network connections • Shared risk link groups (SRLGs) • Integer annotations to TE links, identifying fate-sharing groups • SRLGs are per-layer/domain, must be coordinated • Path computation considers annotations as constraints • If paths are SRLG-diverse, guaranteed to not share fate Server Layer Client Layer SRLG = <nil> SRLG = <X> SRLG = <X> Sharing M-SRLG: 200 Metric: 12 Collapsed, abstract-layer network, Topology M-SRLG: 200 Metric: 15 M-SRLG: 100 Metric: 12 S3 S5 S8 S9 S11 Client & server- layer topology(s) S3 S5 S8 S9 S11 * Thomas Mueller, Juniper Networks, KINBERCON 2016 Benefit: Diversity Control
- 7. © 2016 ADVA Optical Networking. All rights reserved. Confidential.7 Software Defined Packet-Optical Networking Demonstration at SDN OpenFlow World Congress, Duesseldorf, Germany, October 12-16, 2015
- 8. Thank You IMPORTANT NOTICE The content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited. The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation. Copyright © for the entire content of this presentation: ADVA Optical Networking.