1 | © 2015 Infinera
Network Evolution – What is happening to our metro networks and why?Sten NordellCTOMetro Business Group
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The metro today Increased bandwidth
• 1G to >100G
• 100G Accelerates
Dynamic architectures• L0 to L3
• Fast moving towards SDN architectures
• Fronthaul/Backhaul/FTTx
• Cloud based services
Cost optimized solutions• Purpose build hardware
• White label boxes
• Management solutions
Scalability• Platform and commercial aspects
Multi Layer Management• Ability to manage L0 to L3
Access/
CPE
Metro
Core/LH
Cloud Service & Caching Provider(s)
Cloud Service & Caching Provider(s)
Cloud Service & Caching Provider(s)
Cloud Service & Caching Provider(s)
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Cloud Networking
Dynamic / automatic / virtualized hardware and networking• NaaS / IaaS / CaaS / SaaS / PaaS / NFaaS• Programmability
Hierarchy of data centers• Mega data centers• Enterprise-oriented data centers• Distributed data centers• Communication data centers• Cloud-RAN data centers• Traditional local exchange
becomes a data center
EthernetCloud Carrier(s)
EthernetCloud Carrier(s)
Cloud ServiceProvider to
Cloud Customer
Cloud ServiceProvider(s)
Data CenterInterconnectivity
CloudService
Provider(s)
CloudConsumers
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Growth in Capacity, Users and Connections
Annual IP traffic is expected to reach a record two zettabytes by 2019, growing at a compound annual rate of 23%.
The number of Internet users will jump from 39% of the global population in 2014, to 51% in 2019.
There are expected to be 24 billion connected devices by 2019, or just over three connected devices per user.
IP video will make up 80% of all global IP traffic by 2019, an increase from 67% in 2014.
Cellular connections will make up more than 14% of IP traffic in 2019, while WiFi connections will account for 53% globally. Cisco Visual Networking Index 2015
Metro-only traffic will grow nearly twice as fast as long-haul traffic from 2014 to 2019.
Metro-only traffic (traffic that traverses only the metro and bypasses long-haul traffic links) surpasses long-haul traffic in 2014, and will account for 62% of total IP traffic by 2019.
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Optical Trends
Optical software revolution – SDN/NFV• Programmable optical networking
Faster adoption of 100G than expected driven by long haul and DCI
Expected rapid adoption to 200G/400G and beyond• More coherent networks• Broader range of modulation formats
New optical networks are being built • Mobile (Fronthaul/Cloud-RAN) • DCI networks (cloud operators)
Changing dynamic in the optical industry• Web 2.0, mobile…
SDN/NFV
100G
200/400G
C-RAN
DCI
Web 2.0
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Operating Expenses(Persons per Server)
Time to Revenue Operational Complexity(Number of Configurations)
Why SDN / NFV?
TELCO:Thousands
configs
seconds
TELCO:Months
1 per10,000
TELCO:1 per 100
10configs
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Changing Service Providers’ Opportunities
Business models are changing
Consolidations in the industry
Pressure on telecom business model
• Different business options need to be evaluated
Source: Telco 2.0
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More traffic stays in the metro
Centralized Distributed
Source: Bell Labs Report
More local services available More bandwidth in the metro
Content closer to the users – distributed metro with distributed cloud
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Cable – NGN Remote RF SDN / NFV Controlled Network
More 10G Ethernet in the aggregation network
Video content moving out
Virtualization of control and communication services
Source: Gainspeed
RF modulation moving out –
becomes Fronthaul like
DOCSIS processingis moving out
Shorter cable runs/fiber closer
to the customer
Fewer users per segment/more
bandwidth per user
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Fixed – What if we move the BNG functions to the OLT?
Move data plane of subscriber management to a distributed point in the network
Core and metro aggregation networks becomes closer
Multiple connections of higher bitrate
Flattened aggregation network Meshier metro aggregation
network Central office consolidation Virtualizing the services
Source: KJP
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vOLT Everything but the MCs can be virtualized And moved to NFVI running over standard:
Fabric Switches Storage Servers
vCPE CPE replaced with a simple switch Functionality that existed on CPE
virtualized and moved into the Central Office
Source: AT&T
Central Office goes Data Center
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1-10 Gbps connections to end points in the field (i.e. not theoretical maximum)
1 millisecond end-to-end round trip delay (latency)
1000x bandwidth per unit area 90% reduction in network energy usage
Mobile – 5G Technology Requirements
Source: GSMA
InternetCore Network
5-10ms if in the same country
as the customer
1-2ms4ms4ms
Content
> 0.5ms> 0.5ms
LTE – min 10ms
5G service sub-1ms
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Macro to Micro Data Centers for MobileCloud
Ref: mcn
DCI networkingFronthaul
DCI networking(Backhaul)
DCI Longhaul
Source: MCN
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NFaaS (Network Function as a Service)
Simplified architecture Specialized middle boxes are replaced with
common hardware i.e. uniform infrastructure
Reduced CapEx Specialized components are replaced by
common hardware and open source software Decreased OpEx
Through automation
Flexibility Through infrastructure virtualization and the
ability to manage functions at the service level
Source: ONOS
Infinera
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Metro Network EvolutionNPO 3.0
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Service Provider Networks are very alike
TM-3000
TM-3000
Ring, hub and spoke, or mesh topologies
AccessCarrier Ethernet
Over Fiber
Metro WDMCarrier Ethernet
Over Fiber
CPE
Access specific technology Wireless Carrier (CPRI, or Ethernet
Over Copper/Microwave) MSO (HFC)
Telco (Copper/Microwave)
Fiber all the way to thehome, building, tower or proprietary stuff in between
CPE
TM-3000
Core Network (IP/MPLS)
TM-3000
TM-3000 TM-3000
Virtualize as much stuff as possible via NFV (Routers, Switches, CPE), virtualize control plane via SDN
CPE
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Metro networks are changing in the way they need/will need to be built
Metro Network Evolution
Converged cable, broadband and mobile architecture Higher bandwidth in the access means more 10/100G in the metro More traffic stays in the metro More switching/flexibility/aggregation (L0/L1/L2/L3) Diverse/new application sets SDN with separation of data-plane and control-plane NFV for services (virtualization) More open source/collaboration in the Industry More/new business models developing around software Packets (IP/Ethernet) is dominating
Introduce the NPO 3.0
network architecture
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Objectives of NPO 3.0
Centralize
• Continue to decouple software capabilities from the network elements
• Ease migration to new hardware architectures
Virtualize
• Continue to expand upon our SDN strategy
• Simplify standardization and addition of new applications
Automate
• Continue to elevate our network awareness from L0-L3
• Consolidation of network control into single unified control plane
Advance
• Continue our move to next generation Optical architectures
• Move beyond 100G and to next generation network architectures
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Key components of NPO 3.0
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Thank you