transforming networks into a nfv-centric environment
TRANSCRIPT
Transforming Networks into a NFV-Centric Environment
Ulrich Kohn, Director Technical MarketingMay 17, 2015
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Overview
• From Carrier Ethernet connectivity to value added network services
• Central- and edge-hosted VNFs
• Enabling the network for VNF
• Towards open networking
• Key Take-Aways
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Today‘s Network Paradigm – IP-VPN & IA
Enterprise Service Provider
PE Router
CERouter
Firewall AGG
L2 L3 = Transport Layer
Require a “Network Solution” to simplify and add scale
• Service providers want to offer value added managed services
• OPEX blocks service provider revenue opportunity
• Commoditized, low value
• Complex & high OPEX
• Difficult to upsell add-ons
Status Quo
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The Virtual CPE Model
ClassicL2 NID AGG
Enterprise Service Provider
Centralization of complex network functions
L2 L3
Simplified connectivity network
PE Router
• Simple CPE equipment
• Fast service roll-out
• Outsourcing opportunity
Network/Cloud-hosted VNF
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TGV and NFV...
• Capable of hosting innovative solutions
• But compromised value creation
Legacy Infrastructure
• Optimized infrastructure unleashes true value
Prepared for Innovation
... benefit from an optimized infrastructure
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Network Hosted vCPE PoC
FSP 150
Fiber
Juniper MX
Customer premises Operator Network
vRouter vFW vDPI vWONID
• Baselining: Verification of standard link and service OAM features, performance management, synchronization, CES
• Next step: addressing the challenges resulting from NFV
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The Virtual CPE Model
ClassicL2 NID AGG
Enterprise Service Provider
Centralization of complex network functions
L2 L3
Simplified connectivity network
PE Router
Logical Subscriber Link (LSL)
Challenges: (1) security, (2) end-to-end service OAM ( IP Layer)
(3) increased bandwidth in access (4) latency, scalability
• Simple CPE equipment
• Fast service roll-out
• Outsourcing opportunity
Network/cloud-hosted VNF
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L2 Encryption Addresses Security Challenge
AGG
Enterprise Service Provider
FSP 150 Pro
PE Router
L2 EncryptionLSL
Securing the access to the cloud
• End-to-end encryption of EPLs with existing Ethernet networks
• Hop-by-hop MACsec with greenfield scenarios
• Full site security
• Uncompromised
transparency
• Runs over any Eth access
L2 Encryption
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Enterprise Service Provider
L3/4 OAM Addresses Assurance Challenge
L2 SOAM (Y.1731) for access
L3 SOAM (TWAMP) for end to end service monitoring
Service SLA monitoring from customer port to customer port
• SLA management needs to be provided in the NID
• SOAM at IP Layer requires a L3 monitoring protocol
• End-to-end performance
monitoring
• L2 and L3 services
Etherjack SLA Monitoring now includes L3 Services
AGGFSP 150 Pro
PE Router
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Enterprise Service Provider
Programmability Addresses Efficiency
Prevent internal LAN Traffic from being backhauled
• L3/4 ACL, local forwarding of inter VLAN traffic
• SDN controller or VNF appliance driven using standard, open protocols
• LAN traffic stays in
enterprise premise
• Full service control from
central vCPE platform
Programmable connectivity network
AGGFSP 150 Pro
PE Router
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NID
AGG
PE Router
Programmability Demo Shown at SDN and OF World Congress 2014
iBGP
OpenFlow 1.3CE Router
Resource optimization by reducing access to core traffic
• Flows controlled by central SDN controller having reachability information
• OpenFlow protocol used for populating forwarding tables
Metaswitch GulfstreamController
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AGG
Enterprise Service Provider
Edge VNF-Hosting Addresses Latency, Scalability
PE Router
FSP 150Pro (VM)
NFV-enabled NID with integrated server and storage resources
• Optimize utilization of network, server and storage resources
• Supporting edge-hosted VNFs by PNFs (Physical Network Functions)
• Latency, performance,
scalability suggest edge
hosting
• Open support for VNFs
hosted at customer site
Central and edge hosting
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Standard Protocols and Open-Source Control Address Operational Complexity
Open control/programmability
Open orchestration
Open VNF hosting
Evolutionary development from monolithic single vendor to open service-centric network platforms
• Vendors: specification bodies and industrial alliances
• Service providers: PoCs, system integration and DevOps capability
• Three dimensions need to
be considered
• Efficiency gains even with
initial steps
Openness is key
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vCPE Demo at ADVA Booth
NIDServer
Hypervisor
OpenStack (open-source software) ~ VIM
• OpenStack for Virtual
Infrastructure
Management (VIM)
• GUI allowing point-and-
click provisioning
Open-Source Management
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Key Take-Aways
• Consider edge- and network-hosted VNFs
• Prepare your network for NFV• Advanced OAM features
• Programmability
• Security
• Openness as basis for efficient integration and rapid innovation
Thank [email protected]
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