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Packet-Optical SDN Field Trial for Multi-Layer Network Optimization

Jim TheodorasMay 2016

© 2016 ADVA Optical Networking. All rights reserved. Confidential.2

OSI Stack

PhysicalPHY

Data LinkMAC

Network LayerIP/MPLS

Transport LayerTCP, UDP

ApplicationPresentation

Session

Bottom of stack

Top of Stack

Bits

Frames

Packets

Segments

Data

1

2

3

4

56

7

SDN


NorthboundRest API

Use Cases

§ Bandwidth Calendaring: Calendar Bandwidth Elastically Anytime§ Premium Path: Constrain 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 a Maintenance Windows§ Autonomous Optimization: Continuously Compute New Optimize

Paths

NorthStar Controller• JUNOS: Proven Service Provider OS • Built Upon 25 Years of Proven Network Optimization Algorithms• Predictability Centralized Traffic Engineering• Open Standard Base Protocols and Programmable API’s

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


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 RESTNETCONF OpenFlow Tenant

Portal

Network Hypervisor Core

User, TenantAdmin

TopologyInventory Provisioning Surveillance

Interfaces

Functions

Unix, x86Server

Interfaces


Northstar Plus FSP 3000 Network Hypervisor

ADVA’s Network Hypervisor provides an abstracted view of theTransport network towards Juniper’s NorthStar SDN Controller

NorthStar

NetworkHypervisor

Hypervisor

Orchestration

UserInterfaces

3rd PartyApps

TransportApps

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


• 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


Software Defined Packet-Optical NetworkingDemonstration at SDN OpenFlow World Congress, Duesseldorf, Germany, October 12-16, 2015

Thank You

IMPORTANT NOTICEThe 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.

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