SDN-NFV For Telco DC - · PDF fileSDN-NFV For Telco DC Abhishek Mande – Customer Solution Architect – APJ March 2017

SDN-NFV For Telco DC

Abhishek Mande – Customer Solution Architect – APJ

March 2017

© 2017 Cisco and/or its affiliates. All rights reserved. Cisco Public 2

•  Drivers and Trends for SDN and NFV in Telco’s •  SDN Fabric Evolution

•  NFVI Approaches and Requirements

•  Summary

•  Q&A

Agenda

BRKSPG-2402

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NFV: New Way to Deploy Network Services Leveraging Virtualization, SDN and Cloud technologies

Service Agility

Operational Efficiency

Innovation Reduce Cost

Virtual Appliance

Virtual Network Functions

Management, Orchestration & Automation

Compute Storage Network

Open Shared Infrastructure

Virtual Appliance

Virtual Appliance Virtual Appliance

Virtual Appliance Virtual Appliance

Software Defined Controllers

Accelerate Transition to Telco Cloud Platform for Increased Revenue and Margins

•  Efficient Asset Utilization •  Reduce Network Elements, Siloes •  On Demand Scaling

•  Rapid Service Deployment •  Automation of services, testing and activation •  Self Service Portals

•  Service Innovation Platform •  New Architecture for 5G, IoT, Big Data, Cloud •  Open Standards, Open Source, Open API

•  New Services

•  VoLTE, VoWifi, M2M, EMB, etc.. •  Dev Ops Model

•  Real time Analytics & Visibility •  Subs, Devices, and applications •  Network topology, and state

Automated Virtualized Open Cloud Platform


SDN/NFV Enabled Telco Data Centers

Telco DC Used Cases:

•  SDN enabled Telco Data Centers. Dense 40/100G

•  Network Function Virtualization

•  SDN Broadband Data Centers

•  Internet Peering

•  Content Caching

•  Gi Lan Service Chaining

Service-Intent API

Orchestration, Service & Policy Implementation

Branch/CPE Control Mobility SDN Multi-layer WAN

SDN

CLI/ SNMP

SDN / APIs

VxLAN/EVPN Openflow PCEP Segment Routing

Netconf/ YANG BGP

OSS/BSS (Fulfillment & Assurance)

Metro and Aggregation WAN Data Centre Acesss

Openstack / vCenter

NFV INFRASTRUCTURE (Compute, Storage, Network)

VNF3 VNF2 VNF1

Hypervisor

Internet

Services & Peering


VNF & SDN Placement in the Network Distributed Virtualization

Access

Carrier-E / Transport

Data Centers

Edge

Internet

DCI

SPI

DCI

Peering

Edge Private

Public Cloud

SP IP or MPLS Core

Biz CPE

Aggregation Cloud

Multi-Site, Multi-POD Management; Orchestration; Service Chain; Control & User Plane Separation; Analytics

Media Mobility Broadband Use

Case

Front End DC: Virtualization

Back End DC: SDN & VNF

SDN/NFV


NFV Relationship with SDN

Decoupled

Server Virtualization Network Virtualization

§  Decouple logical & physical topology

§  Network is an abstraction.

§  Programmatic Provisioning.

§  Place any workload anywhere.

§  Move any workload anywhere.

§  Decouple from Hardware.

§  Provide L4-7 network services

§  Operationally efficient.

NFV with SDN in an open environment, provides very powerful benefits to SPs


Place Holder for Relevance of SDN and NFV


SP workload evolution

Hosting

Service Delivery

NFV Backend

NFV Frontend

IT

Workloads Trend

Enterprise App & VM Based

VM Based

VM Based & Cloud Native

VM Based

VM Based

VM Based or transition to public cloud

VM Based

Cloud Native Container Based



Trad

ition

al D

C

Dis

tribu

ted

Fabr

ic

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SDN Fabric Evolution


1G

2G

3G 4G

5G

•  L3 Op&mized

technology

Low Latency and High Throughput $

Massive Data Scale

Multi Tenanted

Policy Driven Configuration

BM, VM, Container Workload

Secure , Ease of Operations

SDN •  L2/L3 DC Fabric

•  Spine-‐Leaf L3 Fabric’s.

•  SDN Network Fabric

•  TDM/SDH

•  SDN&5G

IOT Apps

•  L3 Based Fabric •  V4,v6 •  Spine Leaf Topology •  SDN Based Fabric •  Service Chaining •  Visibility •  Telemetry

What ‘x-G’ Demands from Telco Data Center

Telemetry for Analytics


CisC

Decoupled SDN – Vxlan EVPN & 3rd party Controller Integrated SDN - ACI

Choices of SDN Fabric for Telco DC

Fault

Accounting

Performance

Security

Configuration

External Tools Integrated

Tools

VTS

DCNM

Creation Expansion

Fault Mgmt Reporting

Connection

External Tools

Integrated Tools

•  Extremely Easy Fabric Automation •  FCAPS with Day 1 & 2 operations •  Matured Technology •  Easy to Consume •  Physical, Virtual, Containers

•  Decoupled SDN controller from physical fabric.

•  Needs externals tools for FCAPS •  Relatively complex to design, implement and operate.

Segment Routing Based DC Fabric

•  Early adoption phase for transport layer •  Currently lacks automation &

Operational tools •  Integration with Virtualization layer •  Vendor interoperability to be determined

External Tools

Cisco Controller 3rd Party Controller

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ACI an Integrated SDN Approach Open Policy Driven Model

Underlay Network

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VTS DC Fabric Virtual Topology System

Service and Infrastructure Policy Inventory Database Resource Management

Policy Plane C

ontrol Plane IOS XRv

Device Management

Nexus9k,7k, 3k, 5k, 2k, ASR9k

Tennant Network isolation VMWare vSphere

Works across OpenStack and VMware virtualization

SW based VTEP, performance optimized

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Telemetry and Analy&cs

Use Cases • Network Health • Troubleshoo&ng / Remedia&on • SLAs, Performance Tuning • Security Policy Enforcement • Event Driven – Dynamic Configura&on • Capacity Planning

Trends • Centralized / Soaware-‐defined • Speed • Scale

Why Do We Need More Telemetry Data Capabili&es

SNMP

Incomplete

Scale

Issues

Unstructur

ed Subje

ct to

Change

storage & analysis

sensing & measurement

Today Network data is boclenecked

Where Data Is Created Where Data Is Useful

CLI

Syslog

SNMP Server

Syslog Collector

Scripts

Non real Ame

Strong burden on back-‐end

Must normalize different encodings, transports, data models, Amestamps

Three Enablers for Telemetry

Push Not Pull

Analy&cs-‐Ready Data

Data-‐Model Driven

Telemetry and Analy&cs

Title Goes Here

Server Sensors

Application dependency mapping

Automated whitelist policy generation

Policy Compliance and auditability

Policy Simulation and impact assessment

Forensics (ex.: every packet, every flow, every speed)

NX-OS Mode

NX-OS

Analytics

Data Collec&on

Software Sensor and Enforcement – VM, BM

Embedded Network Sensors

Control Plane and Data Plane

Third Party Sources (Configuration Data) – LB, IP

Address

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Containers for Telco Applica&ons

Hardware

Hypervisor

Virtual Machine

Opera&ng System

Bins / libs

Svc1

Virtual Machine

Opera&ng System

Bins / libs

Svc2

Virtual Machines -‐ Hypervisor

Hardware

Opera&ng System

Container

Bins / libs

Svc1

Container

Bins / libs

Svc2

Containers •  Hypervisor solve interdependencies

between apps but… •  Heavyweight 100’s of MB and slow to start

20 seconds or so •  Enabler for OpAmial Resource & Agility

Types of Workloads for Telco Applications Telco DC will have to Cater to All Types of Workloads

Hardware

Opera&ng System

Bins / libs

Svc1

Bare-‐metal •  Single Service mapped to dedicated

hardware •  High performance is the key driver for this

deployment.

•  EmulaAng OS environment for Services •  Are lightweight and fast to start (=subsecond) •  CI/CD: Life Cycle Management •  Enabler for Microservices and Cloud NaAve


HW Integration Can not leverage performance and security by natively integrating with HW

Networking in the new container world

Physical Network Hypervisor Hypervisor

Physical Network

Virtual Switching or Overlay Network

C1 Cn

Guest OS - Bridged

Overlay Network - VXLAN

Physical Network

Hypervisor Hypervisor

Host 1 Host 2 Host 2 Host 1

VM1

C1 Cn

Guest OS - Bridged

VM2

C1 Cn

Guest OS - Bridged

Overlay Network - VXLAN

C1 Cn

Guest OS - Bridged

Connectivity Network services e.g. Load balancer, Firewall

Performance Encap over encap over encap suffers performance

VM1 VM2

© 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6 © 2017 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 100% Open Source The Most Powerful Container Networking Fabric

L2, L3, Overlay or ACI Rich Policies

DevOps IT Admin

Networking Platform

Infrastructure

Application Intent

Network Policy

Declarative

Simple Install

GUI + CLI

LDAP/RBAC

What is Coniv – Providing Container Networking

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PSO-1490 23

Contiv Network Plugin Operational Policy Management

Developer Operations

Application Scheduler

Node 1 Node 2 Node-n Contiv Distributed Policy Layer

...

Contiv Elements

Contiv UI to manage/ monitor policies/usage

Policy enforcement for compute, network, and storage

Integration with physical infrastructure

Contiv policy distribution using state store

Contiv Automatically Integrates and Enforces Developer and Operations Policies

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NFVi for VNF’s


NFV Deployment Models: Vertical vs Horizontal

Infr

a A

bstr

actio

n

Product Centric Converged and Application centric

Virtualization

Product1

App1

Store Compute Network

Infrastructure

Man

agem

ent &

Aut

omat

ion

…

Facilities

Virtualization

Product2

App1


Infrastructure

Man

agem

ent &

Aut

omat

ion

Software Defined Infrastructure

Facilities


Virtualization Layer

Service Catalogue

Man

agem

ent

App

1

App

1

App

1

App

1

App

. M

anag

er

App

1

App

1

App

. M

anag

er

Serv

ice

Orc

hest

rato

r

ü Capital intensive ü Building Silos ü  Time to Market ü Operational Readiness

ü Orchestrated and Elastic ü Common Platform for all VNF ü  SI Led Approach ü Open and independent layers

Service Orchestrator Service Orchestrator

Key Considerations: •  Operational efficiency •  Infrastructure efficiency •  Faster Time To Market •  Business process •  Services Simplicity

VNF Led NFVI Led

26

© 2016 Cisco and/or its affiliates. All rights reserved.

NFVI – What Customers Are Asking Cisco? Carrier Class Performance

Use Case Agnostic Infrastructure

Open Standards Based, Modular and Elastic

Easy to use with Unified Management

Integrated Solution with Single Point of Ownership

1

2

3

4

5

Service Velocity Customer Experience Open Architecture

Solution Security - Defense in Depth 6

27


Performance & Optimization: Different layers of the stack

Real-Time Kernel Real-time hypervisor, Deterministic Latency

CPU/Memory Access NUMA, Huge pages, CPU pinning, Socket affinity

Network Access SR-IOV, PCI-Passthrough, NSH*

Virtual Switching OVS, OVS-DPDK, VPP*


Deterministic placement of Virtual Machines •  Memory allocation on NUMA node •  VNF/VM managing Ingress/Egress traffic •  vCPU Pinning

Virtual Switch PCI-Passthrough SR-IOV

(Single Root I/O Virtualization)

Passes Through Open vSwitch

Single Port Physical NICs

Single Port Physical NIC

(SR-IOV Capable)

Reality: Performance Limitations Deployment options and techniques -> Contradictory to Cloud Deployments !!!

28 BRKSPG-2402

29


North Bound APIs

Orchestrator VNF Managers

Cisco ESC 3rd Party

OSS/BSS and Service Catalog

NFV-O & Resource Orchestration : Service Model

NSO – Network Services Orchestrator enabled by Tail-f 3rd Party or

Virtual Network Functions Cisco and 3rd Party

Enterprise Services

Mobility Services

Media Services 3rd Party IoE/IoT

VNF

North Bound APIs

Cisco Physical Infrastructure

Software Defined Controllers

Linux (RHEL 7.1), Hyper Visor (KVM), ESXi, Vsphere

Network Compute (UCS) Storage Ceph

Uni

fied

Man

agem

ent

with

ass

uran

ce.

Infra

Man

agem

ent API

GUI

Virtual Infrastructure Manager

Cisco Installer on RHEL OSP 7, VCenter

Ass

uran

ce UCSM VTS ACI 3rd

Party or

NFVI

Cisco NFV for Multi Services Part of the Cisco Open Network Architecture

30


30

Intel® ONP Server – Ingredients & Consumption

Intel ONP Ingredient Menu

Fedora

Intel® Comm Chipset 89xx intel® Xeon E5-2600 V3 intel® Ethernet Controller XL710

Intel® 8950 Coleto Creek

* Other names and brands may be claimed as the property of others.

Reference Architecture Commercial Product

RHEL OSP7, Ceph

Cisco VPP or Open vSwitch

Intel® Xeon® E5-2600 v3

Intel® Communications Chipset 89xx Series

Intel® Ethernet Controller x710

Cisco UCS B-series Cisco UCS C-series Cisco UCS M-series Nexus 9K Family

Cisco NFVI Platform

Intel® Xeon E5-2600 V3 Intel® Ethernet Controller XL710

Fedora

DPDK

Intel ONP Server 1.5

Kilo 2015.1.1

Lithium SR1

v2.4.90

v2.0

2.3.0.5

Fedora v21

Industry SHVS

Integrated Software

SDN Controllers: or APIC or VTS

TXT/TPM, EPA, IETF NSH, OvS hardware acceleration

Single Pane of Glass (Operations)

Cisco Openstack SP Suite

Validated PoD’s

Single Point of Support

RHEL KVM/RH OS7.2

Carrier G

rade Reliability &

High Availability

Infrastructure Monitoring &

Assurance

High perform

ance networking

31


Cisco VIM Key Differentiator Cisco Openstack running RHEL OSP 7 automates Opensource VIM workflow

Installer CI/CD

Health Checks Logging/Monitoring

HA Verification VM throughput Testing How does this

solution Differentiate…

?

32


1 "Best of Breed" Open Architecture

Open Source Components from the leading contributors CEPH, Linux, KVM, OpenStack, ODL Programmable network and compute architectures: N9K, UCS, SDN Controllers Options

Performance & Optimization Optimized System Performance SDN Controllers, Optimized Forwarders

3

2 Operational Simplicity

Installation and Configuration Management and Operations Performance and Health Checks

Cisco NFVI Value Proposition 3 Key area’s of Differentiation

32 BRKSPG-2402


Summary

33 BRKSPG-2402


Summary And Discussion Points Raising key questions:

•  How does SDN/NFV add to economic and strategic value to your business?

•  How much of automation of Physical & Virtual services has been achieved?

•  How do you plan to manage the complex cost of transition effectively?

•  What's the value you plan to derive out of Open source tools? People Process Tools

SDN/NFV is a strategic technology transformation •  Its not about virtualizing a VNF on a bunch of servers •  Its about hosting VNFs on a Open, Programmable, Intelligent

Network Infrastructure with flexibility to Manage and Automate Services

Leading to high Operational disruption …

Documents

SDN-NFV For Telco DC - · PDF fileSDN-NFV For Telco DC Abhishek Mande – Customer Solution Architect – APJ March 2017