sp use cases for nfv and vcpe - enabling service agility via csr1000v leonardo solano system...

SP Use Cases for NFV and vCPE - Enabling Service Agility via CSR1000V

Leonardo Solano

System Engineer

CCIE#39248

© 2015 Cisco and/or its affiliates. All rights reserved.BRKSPG-2519 Cisco Public 3

Abstract

• Today, CPE provides a number of network functions such as firewall, access control, nat, policy management and VPN. CSR1000V can help service providers cut down the cost of CPE deployments and reduce their maintenance overhead by implementing selected network functions in software that can run on variety of industry standard servers. CSR1000V also offers NFV functionality leveraging Cisco's IOS-XE already proven, and time-tested deployment of this network OS in the field. The session will go over the fundamentals of virtual IOS-XE and its use cases for NFV and vCPE. The session will focus on virtual layer 3 to 7 features such as virtual Broadband Remote Access Server (vBRAS), virtual Route Reflector (vRR), virtual Carrier Grade NAT (vCGN).

© 2015 Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public

Agenda

• Introduction

• CSR 1000v System Architecture

• vCPE Network Architectures and the vMS Solution

• Virtualizing BRAS, LAC, LNS or Route Reflectors

• Conclusion

4

Introduction

© 2015 Cisco and/or its affiliates. All rights reserved.BRKSPG-2519 Cisco Public

Network Functions Virtualization (NFV)Announced at SDN World Congress, Oct 2012

• AT&T• BT• CenturyLink• China Mobile• Colt• Deutsche Telekom• KDDI• NTT• Orange• Telecom Italia• Telstra• Verizon• Others TBA…

6


What is NfV? A Definition

…NFV decouples the network functions such as NAT, Firewall, DPI, IPS/IDS, WAAS, SBC, RR etc. from proprietary hardware appliances, so they can run in software. …..It utilizes standard IT virtualization technologies that run on high-volume service, switch and storage hardware to virtualize network functions..…..It involves the implementation of network functions in software that can run on a range of industry standard server hardware, and that can be moved to, or instantiated in, various locations in the network as required, without the need for installation of new equipment.

Sources:https://www.sdncentral.com/which-is-better-sdn-or-nfv/http://portal.etsi.org/nfv/nfv_white_paper.pdf

ServiceOrchestration

NFVSDN X86

compute

7

https://www.sdncentral.com/which-is-better-sdn-or-nfv/

CSR 1000v System Architecture


Cisco CSR 1000V – Virtual IOS XE Networking

Programmability

• RESTful APIs for Automated Management

Perpetual, Term, Usage-based Licenses

• Elastic Capacity (Throughput)

Single-tenant WAN Gateway

• Small Footprint, Low Performance

IOS XE Cloud Edition

• IOS XE features for Cloud and NfV Use Cases

Infrastructure Agnostic

• Server, Switch, Hypervisor

Rich Network Services

• Routing, VPN, App Visibility & Control, DC Interconnect, and more

Server

Hypervisor

Virtual Switch

VPC/ vDC

OS

App

OS

App

CSR 1000V

Rapid Deployment and Flexibility


Architecture (CSR 1000v) - virtualized IOS XE Virtualized IOS XE

Generalized to work on any x86 system

Hardware specifics abstracted through a virtualization layer

Control Plane and Data Plane mapped to vCPUs

Bootflash: NVRAM: are mapped into memory from hard disk

No dedicated crypto engine – we leverage the Intel AES-NI instruction set to provide hardware crypto assist.

Boot loader functions implemented by GRUB

Packet path within CSR 1000v1. Ethernet driver (ingress)

2. Rx thread

3. PPE Thread (packet processing)

4. HQF Thread (egress queueing)

5. Ethernet driver (egress)

Control PlaneForwarding Plane

vNICvCPU vMemory vDisk

Physical Hardware

CPU Memory Disk NIC

Hypervisor (VMware / Citrix / KVM)

Chassis Mgr.

Forwarding Mgr.

IOS

Chassis Mgr.

Forwarding Mgr.

FFP Client / Driver

FFP code

Linux Container

10

DataCtrl


Technology Package IOS-XE Features

IPBase

Basic Networking: BGP, OSPF, EIGRP, RIP, ISIS, IPv6, GRE, VRF-LITE, NTP, QoS High Availbility: HSRP, VRRP, GLBP Addressing: 802.1Q VLAN, EVC, NAT, DHCP, DNS Basic Security: ACL, AAA, RADIUS, TACACS+ Management: IOS-XE CLI, SSH, Flexible NetFlow, SNMP, EEM, NETCONF

SECIPBase Plus… Multicast: IGMP, PIM Advanced Security: Zone Based Firewall, IPSec VPN, EZVPN, DMVPN, FlexVPN

AppX

IPBase Plus… Advanced Networking: L2TPv3, BFD, MPLS, VRF, VXLAN Application Experience: WCCPv2, AppXNAV, NBAR2, AVC, IP SLA Hybrid Cloud Connectivity: LISP, OTV, VPLS, EoMPLS

AX ALL FEATURES

CSR 1000v Feature Support and Technology PackagesREFERENCE

11


CSR 1000V Performance-to-Footprint in IOS-XE 3.14

• For each throughput/technology-package combination, the minimum required vCPU and RAM is listed• Performance results based on 1500 Byte packets and VMWare ESXi

Throughput IP Base SEC AppX AX

10 Mbps 1vCPU/4GB 1vCPU/4GB 1vCPU/4GB 1vCPU/4GB





1 Gbps 1vCPU/4GB 1vCPU/4GB 1vCPU/4GB 2vCPU/4GB

2.5 Gbps 1vCPU/4GB 1vCPU/4GB 4vCPU/4GB 4vCPU/4GB

5 Gbps 1vCPU/4GB 2vCPU/4GB 8vCPU/4GB NA

10 Gbps 2vCPU/4GB NA NA NA

12


License Management Overview

• With IOS XE 3.13, CSR 1000v package names are now: IPBase, Security, AppX and AX– ‘license boot level’ command adjusted accordingly– Old CLI commands are hidden but still accepted (‘[premium | advanced | standard]’)

• Smart Licensing

• Evaluation licenses can be generated for 60 days using the demo portal (www.cisco.com/go/license)– Require UDI– Two licenses: 50Mbps for AX, 500Mbps for IPBase– After evaluation period expires, throughput will be throttled to 100Kbps

• See http://www.cisco.com/c/en/us/td/docs/routers/csr1000/software/configuration/csr1000Vswcfg/licensing.html for license management details

IPBASE

Security AppX

AX

BB CGN4GMEM

1 Year3 YearPerpetual

Perpetual Only

13

http://www.cisco.com/go/license

http://www.cisco.com/c/en/us/td/docs/routers/csr1000/software/configuration/csr1000Vswcfg/licensing.html


Virtualization and Hypervisor Interactions

UCS

Blade

Blade

Phy i/f Phy i/f

CPUCore Core

Hypervisor

VM CSR

vCPU

CPUCore Core

vCPUvCPUvCPU

Scheduler

Vswitchport port

Memory

vMem Tables

VNIC

VM CSR

VNIC

vMem Tables

14

• Hypervisor abstracts and shares physical hardware resources from / among multiple VMs

• Scheduling of vCPUs onto physical cores can create non-deterministic behavior

• Scheduling of vNICs onto physical ports can lead to packet losses / jitter

• Multiple VMWare settings control resource allocations, e.g.

Number of vCPUs per VM

Min cycles per vCPU / pinning

vSwitch loadbalancing settings


CSR 1000V vCE

PE WAN

Router

VPC/ vDC

Use Case: Cloud CE/PE Router

MPLS

Servers

Segment A

Segment B

DCFabric

Tenant Scale

CSR 1000V vPE

PE WAN

Router

VPC/ vDC

MPLS

Servers

Segment A

Segment B

DCFabric

VLAN

MPLS

IPoVLAN, IPoIP, MPLSoVLAN, MPLSoIP (IP=GRE, VXLAN, etc.)

MP-BGP

Benefits

• More Tenants per Physical Infrastructure

• End-to-end Managed Connectivity and SLAs

Challenges

• Mapping tenant traffic from VRFs to VLANs

• Maximum 4,096 VLANs limits scalability

15


CSR 1000V

WAN Router

Switches

ServersCSR

1000V

VPC/ vDC

VPC/ vDC

Cloud Provider’s Data CenterChallenges

• Inconsistent Security• High Network Latency• Limited Scalability

Use Case: Secure VPN Gateway• Benefit: Scalable, Dynamic, and Consistent Connectivity with the Cloud

Enterprise

Public WAN VPN tunnel

Benefits

• Direct, Secure Access • Scalable, Reliable VPN• Operational Simplicity

Solutions

• IPSec VPN, DMVPN, EZVPN, FlexVPN

• Routing and Addressing• Firewall, ACLs, AAA

ISR

ISR

ASR

DC

Branch

Branch

Internet

Network Services

16


CSR 1000V

WAN Router

Switches

ServersCSR

1000V

VPC/ vDC

VPC/ vDC

Optimized TCP connection

Cloud Provider’s Data Center

Enterprise

Use Case: Traffic Control and Management

• Benefit: Comprehensive Networking Services Gateway in the Cloud

vWAAS

HSRP

WAAS

WAAS

WAAS

DC

ASR

ISR

ISR

Branch

Branch

WAN

Network Services

Challenges

• Response Time of Apps

• Resource Guarantees

• Resilient Connectivity

Benefits

• Rich Portfolio of Network Features and Services

• Single Point of Control

Solutions

• AppNav for WAAS

• QoS Prioritization

• HSRP VPN Failover

17

vCPE Network Architectures and the vMS Solution


Ethernet Agg SP Core

Managed CPE Extended Deployment ModelsCustomer Premise

CUBECUBE

On-premise Appliances / integrated Services• Router: Routing, ACL, NAT, SNMP..• Switch: port aggregation• Services realized with appliances• Full redundancy• Could be multi-vendor (Best of breed)

WAAS, FW, UC, …

F/D/C

F/D/C

F/D/C = Fibre / DSL / Copper


L3 or L2 Private-cloud Branch • L3 router remains in branch but performs

minimal functions• L4-7 services virtualized in the private cloud• Branch router tightly coupled with virtual

router in the private cloud for services

Routing, QoS, FW, NAT..

Customer Premise

Customer Premise

FW, NAT..

F/D


Customer Premise (v)Router + virtualized L4-7 services

• Router: Routing, ACL, NAT, SNMP• Services virtualized on UCS-E: FW, WAAS,• Could be multi-vendor (Best of breed) • Router could be virtualized too!

F/D

19


Why Move Services into the SP Network?

Reduce costs, and consolidate by

virtualizing services.

Simple, stateless branch hardware. Ship it, plug it in,

done!

Eliminate equipment silos at each site.

Increase managed network functionality,

while reduced per-site costs.

Evolve/upgrade managed service offerings without

changing CPE devices.

“Slim” cloud CPE hardware portfolio to fit branch locations.

Unified management spanning all branches.

• Not a replacement for entire CPE portfolio, but rather a complementary solution (for ‘vanilla’ services)

20


vCPE Creates Four New Revenue Levers

Lever 1:Expand Cust. Base

Lever 2:Capture SMB Market

Lever 3:Reduce Churn

Lever 4:Increase ARPU

• Faster TTM enables more efficient use of resources

• SP can reach out and close more deals with existing resources

• SMBs need different value proposition and GTM than enterprises

• Cloud CPE enables better SMB value proposition and more effective GTM

• Cloud CPE improves service experience

• Less downtime, faster issue resolution, etc

• Happy customers are less likely to churn

• Cloud CPE – services are delivered and managed centrally

• Easier for customers to order new services

ExistingCustomer

Base(CPE)

New Cloud CPEcustomers

Expanding Customer Base

EnterpriseMarket

Segment

SMBMarket

Current Market New Market Layering New Services:CPE Churn Cloud CPE Churn

+

21


vCPE Architecture Building Blocks

• vCPE– Performs some / all of the L3 functions previously

executed by an on-premise physical CPE

– Location: either in SP PoP or in Data Center

– Can be run in single-tenant or Multi-tenant mode

– Provide Edge router either switches VLAN locally or tunnels the VLAN to the DC

• CPE-Lite – in either L2 or L3 Mode

– Minimal functions to reduce operational complexity

• SP aggregation network assumed to be Carrier Ethernet – Transparently transports Ethernet frames to the PE

• NOTE: CPE-lite and vCPE are tightly coupled through a tunnel– CPE-lite does not selectively forward only subsets of

flows to the vCPE

– => Main difference to cloud connector / NfV architecture

PoP

SP Aggregation

DC VMs

MSECPE-Lite

BranchCPE-Lite

BranchMSE

SP Core

vCPE

SP Aggregation

VMs

vCPE

22


vCPE L2-NID Architecture

• MSP is offering FE/GE port as a demarcation point to multiple customers (e.g. in basement)

• Uplinks are FE or GE

• NID connectivity to the SP infrastructure is purely based on Gig Ethernet

• All traffic transparently sent to SP Infrastructure / vCPE

• NID offers feature set:– Connectivity– L2 Security (L2ACL, Storm control, BPDU guard)– IP Manageability (TACACS+, AAA, OAM)– COS– No routing, services (NAT, Firewall, IPSLA, Netflow..), L3 HA

Customer Premise


Routing, QoS, FW, NAT..

L2

23


Single-tenant vCPE + L2 CPE-lite Protocol Stack

ME1200 ASR 9000 L2 DC UCS/vCPE

Carrier Ethernet Ethernet/

VLAN

VLANQinQ

ASR 9000L2 DC

IP

Eth

Phy

Eth

Phy

.1Q

Phy

.1Q

Phy

QinQ

Phy

QinQ

Phy

.1Q

Phy

.1Q

Phy

IP

.1Q

Phy

.1Q

Phy

.1Q

Phy

.1Q

Phy

.1Q

Phy

.1Q

Phy

IP

.1Q

Phy

VRF

CPE-liteEither VLAN or Ethernet Encap

Ethernet Transport Network:MPLS/TP

QinQ imposition

PEDecapsulate QinQ (e.g. EVC)

Encap customer VLAN according to DC underlay

Could also be last Eth Agg Switch

DC Underlay:Ethernet /L3 basedQinQ imposition

vCPEFirst L3 hop

vCPE on ‘on-a-stick’

PETerminate customer VLANs into

VRF or GRT

DC Underlay:Same DC underlay

UNI

24


Reference E2E Functional Architecture for vMS/vCPEExtending orchestration to physical devices

PE/DCI UCS

CPE Management

VNF Management & Service Chaining

CFS

RFS

Self Service Portal

Network Services Orchestrator

VNFs

Metro/WAN Management

Meraki

ISR, Other CPE

Meraki MX

x86

Prime

WAE

WAN/Internet

ESCServic

e Config

Overlay SDN

Controller

L2/L3 CPE(ISR, NID)

WAN Orchestration

Demand Placement

Service Assurance

Analytics

Day 0 boot-strapDay 1/Day 2 config

Stats collection (n/w & apps)Fault management

Customer Facing Services provide portal access to Catalog offerings including vCPE.

Virtual Network Functions provide CloudVPN and other NFVaaS

Future: provision SP Metro/VPNWAN Optimization

Operations management & Service Assurance

25

DevNet-1020


Prime Service Catalog(PSC)

User Self-Service Portal

NFV Orchestrator

VM and ServiceLifecycle Manager

SDN sub-system / SDNController

SDN Virtual Forwarder

VM & Storage Orchestrator

DCI

REST API REST API

MP-BGPRestconf/Yang

Net

conf

/Yan

gO

r C

LI

Prime Order Fulfillment or SP’s OSS/BSS

OpenStack APIs

VNF

VNFx86 Server

ESC API VTM API

OpenStack

Elastic Services Controller (ESC)

Virtual Topology Controller (VTC)

Service Assurance

A Framework enabled by multiple products & architecture

OVS

VTF

Cisco NfV Orchestration SolutionOSS

Network Services Orchestrator (NSO)(Foundation Based on Tail-f NCS)

REST API / JCloud (Future)

SP WANCSR 1000v

26


Cisco NFV Orchestration Solution: Capability Summary

•Multi-domain orchestration across compute, storage and network (physical and virtual)•Data model driven design for service profile specification•Customer facing service definition exposed via RESTful API

Service orchestration (across physical and virtual)

•Elastic VM Lifecycle management to grow/shrink service on demand•Supports horizontal and vertical scaling of VNFs (scale up/down, scale in/out)

VNF Lifecycle management (on-prem and in the cloud)

•YANG based service models•Supports flexible south bound device interfaces (CLI, SNMP, Netconf/YANG, REST)

Service Provisioning

•Application driven network policy•Supports rich network topologies and service chains •Integrates cloud service with SP WAN (VPN/Internet)

Automated Network Control

•High performance virtual data plane (10Gbps per core) •High availability across infrastructure plane and service plane

Carrier-class performance and reliability

One Touch Install


VMware

Mapping architecture to ETSI NFV Framework

VNF Manager

Service, VNF and Infrastructure

Description

Service Catalog

Network Services Orchestrator (Based on Tail-F NCS)

VNF Library (sample list)

SP’s Existing OSS/Catalog

OpenStack

CSR1kvCSR1kvCSR1kv

NFF3rd Party

vNFASAvASAvASAv

QvPC SIQvPC SIQvPC SI

QvPC DIQvPC DIQvPC DI

Virtual Infra. Managers (VIM)

NFV Orchestrator

Service Lifecycle Management

Service Provisioning

Cisco Virtual Topology Controller

(Compute and Storage VIMs)

Cisco VNF Manager

REST API

NFV Infra (NFVI)

Currently available (included in 1.0)

(Network VIMs)

Service Lifecycle management(ESC)

VTF

28


Service agility: From months…

29


… to minutes

value

1

2

3

2

1

3

1

2

3

time

minutes

months

present modeof operation

3

3 new modeof operation

daysweeks

User Self-Service : GUI Inputrendering & corrections1

Order Auto-orchestratedin virtualized Multi-Service

Smart Infra Cloud3

IT-light Service Control

Self-monitoring,Self-maintaining

Elastic

4

Auto-created designBased on user inputs2

30


NFV Orchestration Solution: Network Control System (NCS)

• Multi-vendor service orchestrator for existing and future networks

• Single pane of glass for:– L2-L7 networking– Hardware Devices– Virtual Appliances

• Model Driven Orchestration– Service Data models (declarative)– Device Data Model (for auto config)– All Models are YANG Based

• Highly Scalable for large infrastructure– One of the existing deployment is managing

60K devices on the network

• Additional orchestration capabilities are being added

Network Element Drivers

Device Manager

Service Manager

Network Control System (NCS) ServiceModels

DeviceModels

Network-wide CLI, Web UIREST, Java, NETCONF

Network Engineer

ManagementApplications

End-to-EndTransactions

NETCONF, CLI, SNMP, REST, etc.

• Applications• Controllers

31


• End to end customizations for specialized applications

• Integrate with 3rd Party Orchestration, and Assurance systems

• Agentless, multi-vendor VNFs support - no limits

• Onboard new applications faster with custom monitoring

• Dynamic VNF registration, deployment, and LCM

• VNF monitoring and elasticity with vertical and horizontal scale

• Integrated Intelligent rules based engine

• Service auto-recovery and N-way redundancy

Cisco Elastic Services Controller: Customer Benefits

Service Agility

Faster Innovation

Reduce Opex, Optimal resource consumption

• Modular architecture- offering choice of multi-vendor – OSS, VNF’s and VIM

• Extensible, supports VNF descriptor data models (Yang)

Modularity, Multi-vendor and Open Platform

32


List of Events

• VM Alive• Service Alive• Upper load threshold crossed• Lower load threshold crossed• Service Dead• VM Dead

List of Actions• Notify (callback)• Advertise Service• Withdraw Service• Restart VM• Scale up (add a VM)• Scale down (remove a VM)• Individually customizable

action(s) for every event

Simple Rules

Service Alive => advertise

VM Dead => withdraw

Upper load => scale up

Complex Rules

Upper load => Scale up, Notify, Advertise

Service Dead => Withdraw, Notify, Restart

Service Alive => Advertise, Notify

Elastic Services Controller

ProvisionVM

VM Bootstrapprocess

Service Bootstrap Process

Servicealive

VMalive Service

Functional

ServiceOverloaded / Underloaded

VNFProvisioning VNF MonitorVNF

Configuration

ConfigureService

Service DEAD

VM DEADCustom Script

Action

VMOverloaded / Underloaded

Predefined Action

Custom Script Action

Predefined Action

Custom Script Action Predefined Action



Custom Script Action

Predefined Action

Analytic Engine Rule Engine

ESC - VNF Lifecycle Management, Monitoring and Elasticity

33


NFV Orchestration Solution: Virtual Transport Function and Controller (VTF & VTC)• VTC – Routing controller based on XRv

• VTF - Light weight, high performance software forwarding plane – Provides highly optimized forwarding in x86

environment– Runs once on each server– Contains a unique forwarding context per tenant– Provides per-tenant L3, L2 and PBR forwarding for

service chaining– Provides IP routed and L2 P2P transport – Provides DHCP relay, ARP function– Programmed by NSO Controller using YANG over

RESTConf• All forwarding controlled centrally• Granular L3 and L2 forwarding entries• N-tuple match

VM (VTF)

VM

“CE”

Datato DC Fabric

Server

VM

“CE”

VM

“CE”

VM

“CE”

VM

“CE”

VM

“CE”

VRFR

VRFY

VRFG

Control channel to NSO

34


CloudVPN Business Services: Use Case 1: CloudVPN with Internet, Firewall (FW), Remote Access (RA)

Cloud IPVPN with FW and Remote Access to Internet vFW with NAT and Policy vFW with IPSec/SSL Remote Access

including Remote End-Host posture verification

CPE

CPE

CPE

Internet Router

vFW

SP CLOUDInternet

Cloud-Hosted Management

Scalable, elastic, on-demand

Overlay Packet Tunnels Keyed IPv6 tunnels - mesh, hub&spoke; IPSec tunnels – mesh, hub&spoke if

keyed IPv6 tunnels not supported;

VR

35


Network Services Orchestrator (NSO)PnP Server

CloudVPN with ISR CPE Use Case


Tenant Portal

REST API REST API

SP’s OSS/BSS

ISR CPE

PnP Functionality Zero Touch Provisioning

OpenStack

X8

6

Serv

er

CloudVPN Connectivity up

ProvisionCSR

ISR CPE Shipped to Customer Site, connected & Powered ON

Customer Orders VPN Service

Provide Day 1 Configuration

Establish VPN: IPSec, IP Overlay (VXLAN, GRE, LISP), L2

DCI/PE

CSR1Kv

Spin up CSR

36


Adding VNFs in the cloud


Tenant Portal

Network Services Orchestrator (NSO)

REST API REST API

SP’s OSS/BSS

ISR CPE

PnP Functionality Zero Touch Provisioning

OpenStack

CSR1Kv ASAv

X8

6

Serv

er

Internet Gateway

vESACloudVPN Connectivity up

If more VNFs are neededfor a Service Chain ?

More scalable and flexible service chaining enabled with VTC & high-performance VTF

ISR CPE Shipped to Customer Site, connected & Powered ON

Customer Orders VPN Service

Provide Day 1 Configuration

Virtual Topology Controller (VTC)

OVS/VTF

Establish VPN: IPSec, IP Overlay (VXLAN, GRE, LISP), L2

PnP Server

DCI/PE

37


Cloud Service OrchestrationOrchestration

WorkflowCatalogPortal / UI / API

VM/Storage Control

Network Control

Network Service Control

Ser

vice

C

rea

tion

Ser

vice

M

onito

ring

Ser

vice

C

onfig

IPC

ontr

ol

DC

N

etw

ork

Con

trol

ler

WA

N

Con

trol

ler

…

NfV Example Workflow1. Request received

2. Catalog item

3. Defines workflow

4. Workflow calls Service Creation to set up service VMs

5. Service Creation calls to Openstack to set up VMs

6. Openstack sets up VMs

7. Workflow calls to Service Config function to set up services

8. Service Config configures services

9. Workflow calls DC network controller

10. DC network controller configures overlay network

11. Service monitoring tracks availability and performance of service

12. Service Creation manages service elasticity and high availability

Infrastructure

PhysicalNetwork

VirtualNetwork

Compute

Storage

Virtual Services

1112

10

1

2 34 7 9

5

6

8

38

Conclusion


Summary – what we talked about Today

This session reviewed the

• CSR 1000v System Architecture

• vCPE Network Architectures and the vMS Solution

• Virtualizing BRAS, LAC, LNS or Route Reflectors

40


Key Conclusions

• Virtualization is maturing fast and enabling new architectural variations

• CSR 1000v is able to meet SP requirements for virtualization from a feature-richness and performance perspective

• vCPE architectures are enabled by Cisco using the vMS solution, where the CSR 1000v offers virtualized CPE functionality in the cloud combined with orchestration

• The virtualized IOS XE of the CSR 1000v enables other NfV use-cases like vBRAS, vLNS and thus enables different architectures

• Virtualization is about changing the architecture, not simply replacing a hardware system with a software system– Increased focus on automation and orchestration

41

sp use cases for nfv and vcpe - enabling service agility via csr1000v leonardo solano system...

Documents

cisco andor

cisco public cisco csr

cisco public architecture

cisco public abstract

introduction slide

selected network functions

number of network functions

fundamentals of virtual