vCPE Challenges and Ways Forward
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The document discusses the challenges and opportunities of implementing virtual customer premises equipment (v-CPE) in telecommunications, highlighting its benefits such as new revenue streams for service providers and cost savings for enterprises. It addresses key issues including management complexity, performance, and security that need to be resolved to fully realize the potential of v-CPE. Strategies for successful v-CPE deployment are suggested, including NFV acceleration and moving NFV to the network edge.
vCPE Challenges and Ways Forward
- 1. ECI Proprietary VIRTUAL CPE – CHALLENGES AND PATHS FORWARD Hayim Porat ECI CTO
- 2. ECI Telecom Proprietary and Confidential 2ECI Proprietary 2 NFV PROMISE NFV value already proven in data centers Expected to speed past SDN in terms of CSP network deployment But lot’s remains to be done NFV From Gartner Hype Cycle for Communications Service Provider Infrastructure, August 2015 SDN Plateau in CSP networks reached in: 2-5 years 5-10 years Today’s Discussion: v-CPE use case
- 3. ECI Telecom Proprietary and Confidential 3ECI Proprietary 3 PHYSICAL CPE (P-CPE) Network functions for interworking enterprise LANs across the WAN Demarcation, routing, VPN, NAT, WAN optimization, security, etc. Implemented physically at customer premises using multiple dedicated appliances Service Provider or Cloud NetworkP-CPE
- 4. 4 4ECI Proprietary 4 VIRTUAL CPE (V-CPE) AT CUSTOMER PREMISES Implements physical CPE functions in software (VNFs) on a standard commercial server Consolidates functionality facilitating mgmt and upgrades Some functions need to persist in legacy P-CPE Does not provide benefits of cloud-based virtualization P-CPE V-CPE Virtual network functions (VNFs) of physical CPE Service Provider or Cloud Network
- 5. 5 5ECI Proprietary 5 CLOUD-BASED V-CPE VNFs implemented anywhere between the customer premises and remote data centers Provides cloud implementation benefits: Elastic use of shared resources Statistical multiplexing New services models Virtualization based on ETSI NFV framework P-CPE V-CPEVirtual network functions (VNFs) of physical CPE Service Provider or Cloud Network May be 100’s of km apart
- 6. ECI Telecom Proprietary and Confidential 6ECI Proprietary 6 ANTICIPATED BENEFITS OF V-CPE Service providers – New revenue streams Enterprises – Outsourcing and simplification Other: Lower equipment costs Eliminate truck rolls Best of breed applications Customization Continuous updates
- 7. ECI Telecom Proprietary and Confidential 7ECI Proprietary 7 YET HEADWINDS EXIST Virtualization issues • Functional distribution • Management complexity NFV issues • Performance • Energy Link issues • Traffic Tromboning • Security • Latency
- 8. ECI Telecom Proprietary and Confidential 8ECI Proprietary 8 FUNCTIONAL DISTRIBUTION NATURAL CUSTOMER PREMISES FUNCTIONS Termination point Enterprise network monitoring L2 forwarding Access link encryption Ethernet access Wireless LAN WAN load balancing WAN optimizationP-CPE V-CPE
- 9. ECI Telecom Proprietary and Confidential 9ECI Proprietary 9 V-CPE Service Provider or Cloud Network Routing and multicast Session border control NAT and/or DHCP IPsec Security (firewalls, DPI, DDOS, etc) Configuration management Performance monitoring and logging VoIP (PBX) Value added business services Caching FUNCTIONAL DISTRIBUTION WAN LOCATABLE FUNCTIONS
- 10. ECI Telecom Proprietary and Confidential 10ECI Proprietary 10 MANY FUNCTIONAL DISTRIBUTION DECISIONS Service Provider or Cloud Network P-CPE V-CPE V-CPE WAN Locatable Functions Routing and multicast Session border control NAT and/or DHCP L2 and L3 VPN IPsec Security (firewalls, DPI, DDOS, etc) Configuration management Performance monitoring and logging VoIP (PBX) Value added business services Caching Natural Customer Premises Functions Termination point Enterprise network monitoring L2 forwarding Access link encryption Ethernet access Wireless LAN WAN load balancing WAN optimization Virtual or physical? Virtual at CP or within WAN?
- 11. Customer Portal NFV MANO EMS NMS OSS Local Mgmt ECI Telecom Proprietary and Confidential 11ECI Proprietary 11 ADD MANAGEMENT COMPLEXITY Service Provider or Cloud NetworkP-CPE V-CPE V-CPE WAN Locatable Functions Natural Customer Premises Functions NFVi Manager VNF Manager Orches- trator
- 12. ECI Proprietary 12 NFV ISSUES PLATFORM VERSUS APPLIANCE General purpose vs. dedicated appliances Input/output processing Power consumption FW throughput about 10 Gbps 600W FW throughput 60 Gbps 250W SW licensing costs
- 13. ECI Telecom Proprietary and Confidential 13ECI Proprietary 13 CHEAPER YES? BUT HOW MANY X =?
- 14. ECI Telecom Proprietary and Confidential 14ECI Proprietary 14 BUSINESS CASE CONSIDERATION COST OF ENERGY Annual Energy cost (assume 1000 servers) = 1000 x 0.5kW x $0.1/kWh x 24 x 365 = $0.5M/year Significant costs moving from businesses to the carrier X = ?
- 15. ECI Proprietary 15 P-CPE 1. Cleartext 2. Service provider IPSec Tunnel 4. User’s encrypted traffic Service Provider or Cloud Network 3. IPsec decryption, vCPE processing, User encryption vCPE needs cleartext to process data However the medium between the CP and cloud is unprotected Hence both user encryption and tunnel encryption is required Doubles processing and energy costs LINK ISSUES V-CPE V-CPE
- 16. ECI Proprietary 16 P-CPE V-CPE Service Provider or Cloud Network V-CPE Can occur frequently • DHCP • DNS • AAA Creates link congestion Can add many 10s of ms to transactions LINK ISSUES TROMBONING AND LATENCY
- 17. ECI Proprietary 17 SO HOW DO WE BEST LAUNCH THE GOOD SHIP V-CPE?
- 18. ECI Telecom Proprietary and Confidential 18ECI Proprietary 18 SOME STEPS TO CONSIDER NFV acceleration NFV at the network edge Hyper-converged cloud
- 19. ECI Telecom Proprietary and Confidential 19ECI Proprietary 19 NFV ACCELERATION Supplement NFV for intensive input/output or other processing tasks not best suited to general purpose computing Create a hybrid device with best of both worlds Optimize for first cost and energy costs Optional add-on only when needed
- 20. ECI Telecom Proprietary and Confidential 20ECI Proprietary 20 NFV TO THE NETWORK EDGE Reduces latency Limits tromboning to the last mile Also a platform for edge computing services (e.g. MEC, IoT, M2M, AR) Service Provider or Cloud Network P-CPE V-CPE Move NFV from anywhere in the network or cloud, to as close as possible to the network edge V-CPE V-CPE
- 21. ECI Telecom Proprietary and ConfidentialECI Proprietary 21 HYPER CONVERGED CLOUD Strong fit with distributed network edge computing Eases complexity through local plus hierarchical management Servers Storage Network Management Security Facilities Services Converged Infrastructure Compute Storage Networking Intelligence Virtual Machine
- 22. ECI Proprietary 22 Multiple platforms for best application fit Neptune packet transport system integrated blade Stand-alone module I/O acceleration Library of best of breed VNFs Fully hyper converged cloud platform based on OpenStack ECI ELASTIC VIRTUALIZATION Mercury NFV platforms
- 23. ECI Telecom Proprietary and Confidential 23ECI Proprietary 23 “Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. And to make matters worse: complexity sells better.” ― Edsger W. Dijkstra