paving the path to multi-layer networking via sdn - infinera · pdf file1 | infinera...

1 | Infinera Confidential & Proprietary

Paving the Path to Multi-Layer Networking via SDN Cable Tech Summit 2014 Chris Liou VP Network Strategy


• Accelerate development of new services

• Multi-tenancy, Transport Network Virtualization

• Customer-driven networking & services (NaaS)

Service Innovation

• Unified control plane

• Simplify multi-layer, multi-vendor provisioning

• Standard, open API’s

Operations Automation

• Increase network efficiency through optimal resource utilization

• Globally optimize traffic

• Coordinate multi-layer restoration

Network Optimization

Key Drivers for Transport SDN


Decouple data & control planes • For transport, not

necessarily all CP functions

Logically centralize networking intelligence • Globalized view

• Central orchestration

Open APIs • Programmability

• Standardized information models

• Abstraction is key

SDN ≠ OpenFlow

An Intro to Key SDN Concepts

ONF Framework Architecture


Application Use Case 1: Multi-layer Optimization for Intelligent Transport

Need for multi-layer representation, topology computation & provisioning

SDN approach facilitates orchestration across layers & domains

Benefit: Network carries traffic at the most optimal layer

SDN Multi-Layer Orchestration & Optimization

$,W

Router

Optics

Digital Switching

$$$,kW

Converged P-OTN Layer

IP/MPLS Layer

Analytics Provisioning


Application Use Case 2: Elastic Data Center Interconnect (EDCI)

Data Center Data Center

SDN Orchestration

Centralized Intelligence & Control

Dynamic orchestration of flexible inter-DC bandwidth • Cloud bursting, Bandwidth on demand (L2, L1, L0), Disaster recovery, VM migration

Unified coordination of packet flows & transport • Cross-layer coordination of packet QoS, L1 bandwidth, latency, resiliency & diversity

• Reconfigurable & adaptive to traffic/performance demands (L1 & L2)

Dynamic , adjustable packet-optical bandwidth

GMPLS/SSON Enabled Packet/Optical Core


Relevant Standards & Technologies Transport SDN

Standards efforts

• ONF Optical Transport Working Group (OTWG)

• Architecture, information modeling (nodal & network)

• OpenFlow protocol extensions

• OIF

• Carrier SDN requirements & use-cases

• IETF

• PCE, ABNO (controller arch), abstract topology

• YANG modeling, protocols

Open source initiatives

• OpenDaylight consortium

• ON.Lab Open Network OS


Software Enabled Platforms • Modular, multi-layer transport solutions (L0 – L2.5)

• Deployable independent network layers or integrated converged solutions

Open and Easy to Integrate • Open, lightweight approach

• Integration with any provider’s SDN controller

Open Transport Switch (OTS) Innovation • Transport service layer focus

• Multi-tiered abstractions & resource virtualization

• Standards-based information modeling w/ multiple control APIs

• Multiple operational modes & levels of control plane centralization

From concept to first product • Multiple OTS collaboration PoCs production integration w/ OTSv

• Multi-vendor/multi-layer applications in ideation

Infinera Approach to Transport SDN


• Multi-layer (L0 - L2.5) transport abstraction

• Multi-protocol control interfaces

• Programmatic APIs for configuration, discovery, & management

• Architected to run anywhere

• Interworks with SSON/ GMPLS

Virtualizing Transport Systems Open Transport Switch (OTS) Concept

Management & Config

Discovery & Monitoring

Provisioning OTS

SDN Control Layer

REST/JSON NETCONF RESTCONF

REST/JSON NETCONF RESTCONF PCEP OpenFlow

Converged Transport HW System

V i r t u a l i z a t i o n m a p p i n g

OTS enables open interface & network virtualization for SDN


REST/JSON OpenFlow

OTS Config Manager

L0/L1 Topology Multi-Layer

Path Engine Multi-Layer Provisioning

Multi-Layer Topology App

Circuits Reservation System (OSCARS)

SDN Controller

Floodlight

Traffic Optimization

Engine

WDM/ OTN/

Packet

OTS Virtualization

Multi-Layer SDN Control

Layer

Host A Host B

Virtual Transport Network

OpenFlow Enabled Packet Network

10G 100G 10G 100G

1.Multi-layer provisioning

2.Dynamic Router offload

3.Dynamic Site bypass

PoC Scenarios

Multi-Layer Provisioning & Optimization PoC ESnet, Brocade Collaboration

analytics provisioning


ABNO Controller Policy Agent

ALTO Server

Topology Module

I2RS Client

L3 PCE

VNTM

L1 PCE

Provisioning Manager

OAM Handler

Multi-Layer SDN Control

Layer

Telefónica Multi-Layer SDN Architecture PoC IP Link Automation & MPLS NaaS

Network as a Service (NaaS)

Multiple south-bound protocols • REST/JSON • OpenFlow • Netconf/YANG • PCEP • BGP-LS

Multi-layer PCE-based controller: Point and click IP/MPLS services w/automatic router & transport layer provisioned automatically

Application: Dynamic MPLS tunnel service creation in multi-layer, multi-vendor environment.

OTS

OTS

OTS

MX-240-1

MX-240-2

MX-240-3

DTN1 DTN3

DTN2

100G

100G 100G 10G

10G 10G

10G 10G 10G

DWDM Super-Channels

Bandwidth Virtualization

Open Transport Switch (OTS)

Digital Switching

Intelligent Transport Abstraction


End-to-end Multi-Layer, Multi-Domain PoC APAC Tier 1 Service Provider

MPLS-TP Aggregation

Domain

OTN/WDM Core Domain

OVS OVS VM VM

PW/LSP

ODU/OCh/OXC

Ethernet

ODU/OCh/OXC

MPLS Controller Optical Controller Cloud Manager

Transport SDN Controller (Multi-Domain)

DC Domain

Multi-layer , Multi-domain Orchestration • Network & resource virtualization • Multi-tenancy virtual networks (slicing) • Single-pane E2E provisioning across layers • Multi-layer failure monitoring Multi-protocol southbound APIs

• OpenFlow, REST, SNMP, TL-1

Multi-controller, multi-technology PoC • Network: OTN/WDM, MPLS-TP, Ethernet • Key SDN components:

• Infinera Open Transport Switch • OVS • NEC OdenOS & Ryu • Hitachi SDTN Controller

DC Domain

MP

LS-T

P

MP

LS-T

P

Cloud Manager OVS Controller

Mu

lti-

laye

r


OTSv – Transport Abstraction & Programmability

From Concept to Product

OTS

v A

PI

Fun

ctio

ns

IT/Cloud Orchestration

SDN Controllers

Request/Response https/REST/JSON

NE Communication Layer (ssh,xml)

Packe

t

GMPLS/SSON

Inventory SubNetwork, NE, Port

Provisioning SNC

Port Monitoring State, Fault, Config

Adaptation Function Inventory, Provisioning, Monitoring

Security Basic, Oauth

https/REST/JSON

Notifications Pub/Sub Websockets/JSON/STOMP

Virtualization, Overlay – Future

OTSv plugins

Multi-Layer Transport Control API (L0-L2) • Technology agnostic network model

• Layer specific provisioning model

Inventory & discovery • Topology resources

• Network, SubNetworks, NEs, Links

• NE, Port, Switch Inventory

• Information, availability, state

Provisioning & protection • SNC: Network level, NE level

• Traffic engineering, route query

Realtime monitoring • Create/Delete/Update notif.

• Problems/Alarms

• Performance stats

Server & VM hosted

Notifications – R2

Converged Transport Solutions L0/L1/L2, L0/L2, L0, L1

SDN

Co

ntr

ol

Laye

r Networking Apps

Secure communications


Intelligent optical transport driving new approach to scaling core • Service-ready capacity facilitates BW delivery @ Internet speed

• Unparalleled flexibility with Digital (packet, OTN) and optical (ROADM) switching

Multi-Layer SDN has significant benefits • APIs driven automation & operations

• Rapid application & service innovation

• Globalized view facilitates optimization of traffic & network

GMPLS facilitates evolutionary, open approach • Open SDN control layer, flexible integration options

• Leverage existing robust control plane functions

Summary


Thank You [email protected]

paving the path to multi-layer networking via sdn - infinera · pdf file1 | infinera...

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