Huawei ISP Bearer Network Solution Overview WU YISHENG

Huawei ISP Bearer Network Solution Overview WU YISHENG Senior Solution Director of Huawei Enterprise CTO Office Security Level:

Content 1 Challenges Ahead of Us 2 Huawei ISP Bearer Network Solution 3 From Solution to Practice

New Services Require 10 x Bandwidth, 1/10 Latency and Agile Connection 2 C@5 G 2 H@Cloud. VR VR Music e. MBB VR Education m. MTC VR Gaming 2 B@Private Line office system Production System … Cloud … VR Shopping Private Line u. RLLC 1 Gbps/Site 10 Gbps/Site E 2 E 50 ms E 2 E 5 ms Complex & dynamic connections Gbps Bandwidth/user 20 ms low latency GE/10 GE Access Agile connection to the cloud

5 G Drives Network DC-Centric Architecture Transformation Requirements on Bearer Network 5 G Bearer Network 4 G Bearer Network Multiple tenant Single tenant 2 Core DC + 29 Edge DC 2 Core DC 01 Flexible Connection 02 Differentiated SLA Assurance 03 Automation v. EPC 2 ms Centralized DC architecture peer-to-peer connections Single tenant Manual Configuration 10 ms Distributed DC architecture . . . • full-mesh connections • Multiple tenant • Automated provisioning

O&M Becomes More Challenging as Network Scale & Complexity Increased Google 249 O&M personnel for 1 M+ devices xx Telco 384 O&M personnel for 10 K+ devices OPEX = 3 X CAPEX 80% Manual Configuration 30% On-site Troubleshooting 58% Complaint Dependent 70% Major Incidents Caused by Human AI Cloud computing With rapid iteration and development of new technologies, new service models, the future network is filled with uncertainty. Configuration operation >100 x

Builds 5 G & Cloud Ready Transport Network Capacity Ready Architecture Ready: Innovative ethernet, 4 X fiber efficiency 4 G/5 G convergence, smooth evolution • PAM 4 Based 50 GE/400 GE, 200% transport efficiency improved • Seamless transport, SR EVPN unified protocol, SRv 6 ready • Single fiber bidirectional 50 GE, saving 50% fibers • Reuse legacy infrastructure, smooth capacity upgrade • Legacy MPLS sooth evolve to SR/EVPN Slice 1 Slice 2 Slice 3 URLLC e. MBB m. MTC Cloud BB RRU • 1588 v 2 synchronization precision: ± 1. 5 us MCE NG Core OTN Fronthaul Microwave Access 50/100 GE Slicing Ready Differentiated multiplexing model • Management / control / user plane slicing • Hard & Soft slicing at user plane Aggregation N*100 GE Core 400 GE Intelligence Ready SLA-driven intelligence • SLA awareness and demarcation • SLA-based self-optimization

Content 1 Challenges Ahead of Us 2 Huawei ISP Bearer Network Solution 3 From Solution to Practice

New Architecture New Interface New Protocol New DWDM New O&M Fabric Building Congestion-free IP Transport Network Fabric Architecture Traditional Architecture CSG IMS ASG CSG RSG CPE RSG DC PE OLT BNG EPC Mobile backhaul BNG AGG 2 AGG 1 DC SR DC MEF V L AN MP L S Fixed broadband • • Dedicated network for dedicated service Network & infrastructure coupling Complex network layers, always congestion Segment by segment manual configuration MEF PE MP L S DC DC MCF MEF MEF SR/SRv 6/EVPN • Full-service Converged bearing • Separated service and infrastructure • Congestion-free with Hyper-scale Device • E 2 E Seamless automated connection

New Architecture New Interface New Protocol New O&M IP + Optical Synergy, TCO Reduced 30% Multi-layer Planning • Link utilization improved by 20% NCE-Super NCE-IP • Optical SRLG path separation, improving network reliability NCE-T Multi-layer Provisioning • Multi-layer Automatic Link Discovery and Configuration IP • Min-level provisioning Multi-layer O&M Optical • Multi-layer visualization and what-if simulation • Cross-layer troubleshooting CAPEX saving 40% OPEX saving 30% TTM Reduction Improve link utilization Easy OAM, high planning efficiency Weeks Minutes New DWDM

New Architecture New Interface New Protocol New DWDM New O&M 5 G-Oriented New Interface: PAM 4 -based 50 GE/400 GE Electrical layer Ser. Des 10 G Lanes 25 GE 1λ Ethernet Interface 50 GE 200 GE 40 GE released 2018 -9 400 GE released 2017 -12 Industry Ready 4λ 4λ 50 GE PAM 4 1λ 10 GE Standard Ready 25 G Lanes 4λ 100 GE Optical vendors 8+ 8λ Tester vendors 5+ 400 GE New Interface Commercial Ready 50 GE Access Aggregation& Core 50 GE 100 GE/200 GE/400 GE v. EPC 400 GE commercial use 10+ industry’s 1 st commercial use in Safaricom

New Architecture New Interface New Protocol New DWDM New O&M Flex. ETH: Congestion Isolation, Low Latency Assurance Flex. ETH Standard ETH Flex. ETH VPN+Qo. S MAC Flex Shim PCS PMA PMD Flex. ETH can save 10 us latency (packet length=9600) Flex. ETH is physical isolation. Via TDM Tech, a physical port can be splitted into multiple sub channels, with independent time slot and MAC 5 G Low Latency Requirement: Eliminate congestion is important, lower down device latency Optical module "0" wait on interfaces. VIP forwarding channel NP PHY&MAC PCS Cut Through Flex. Eth MAC Cut-through Forward + Flex. E VIP scheduling Channel NPU Low latency path NPU Complex service path Low-Latency Fast Routing TM Cache on-chip Fast scheduling tree Cache off-chip Nomal scheduling tree Dedicated Low-delay Queue Huawei Target: • IP: 15 us/hop • MW: 60 us/hop

New Architecture New Interface New Protocol New DWDM New O&M New Protocol: the Segment Routing Era has already Come IP Reachability 1980~ MPLS Connectivity Segment Routing Service Availability 2015~next 20 Years 1997~Now Cloud, 4 K, 5 G, Io. T Vo. IP, IPTV Service Internet SDN, Telemetry NMS Management Protocol Command line IPv 4 Best-effort SR/SRv 6, LDP/RSVP-TE EVPN, BIER VLL, VPLS, L 3 VPN Source Routing Global Optimal Path Peer-to-peer

New Architecture New Interface New Protocol New DWDM New O&M SRv 6 Enable Network Automation & Intelligence Segmented Network VLL VPLSQin. Q L 3 VPN GRE BGP IP Metro RSVP-TE BGP LDP Seamless Network VLL Qin. Q VPLS L 3 VPN VLL Segment Routing for IPv 6 EVPN E VPN VPLS Tunnel: RSVP/LDP/GRE… -> SRv 6 VPN: VLL/VPLS/L 3 VPN…-> EVPN L 3 VPN IP Metro IP Backbone Distributed Control, Hop-by-hop configurations IP Backbone Centralized Control, Source Routing based automation NCE NMS Control Plane IP Metro Data Plane Best Effort Forwarding APP-based Guaranteed SLA CS 6 VR EF … 8 queues D C 4 K Video 4 K BE SRv 6

New Architecture New Interface New Protocol New O&M New DWDM New O&M Business Logic/Policy Intent Traditional O&M New O&M Digital Twin • Network-centric Intent Engine • Fragmented Automation Engine • Reactive • Skill-dependent • User-centric Analytics Engine • Closed-loop Big Data Platform Intent-driven automation • Predictive maintenance • AI/Automation Real-time awareness Network Infrastructure Closed-loop automation Cloud-based scalability AI-powered intelligence Dev. Ops Simplifies network towards IT/OSS

New Architecture New Interface New Protocol New O&M New DWDM 5 G Era DCI DWDM 100 G 200 G 400 G 600 G Secondary DC Primary DC Current • 100 G / 200 G • 400 G @ 75 GHz DCI Express ü 100 ~ 600 G, 100 km @ 600 G; 400 G @ 50 GHz, compatible with legacy optical layer • 80 / 96 λ ü Super C 120 λ, 48 Tbps / fiber reduce cost / bit • ~ 19 Tbps / fiber ü ZTP as easy as IT equipment

Content 1 Challenges Ahead of Us 2 Huawei ISP Bearer Network Solution 3 From Solution to Practice

SFR ：Fabric Architecture for Multiple Network Convergence AS-IS SFR TO-BE CORE Mobile PE CORE BNG PE TDR BNG Services Mobile 10 GE Ring • 21 M mobile users and 6. 36 M broadband users Fixed 10 GE Ring Fabric. Node Fabric-node PE Arch. : FMC + Fabric Cable Capacity: 10 GE->N*100 GE 2*10 GE CMTS 4*100 GE Metro Edge FN 2*GE Ring DC DC 2*10 GE Protocol: MPLS->SR Huawei Solution Highlights Industry AGG-1 AGG-2 OLT CPE CSG FBB B 2 B 2 G/3 G/4 G/5 G AGG-3 1 st network slicing ready solution AR ONT 2 G/3 G/ 4 G Challenge • 3 sperated networks for 2 B/2 C/2 H services, Multi-vendor(5 vendors)，high OPEX B 2 B ONT FBB NP based smooth evolution for 5 G and cloud • Decoupling service and network，PE/BNG side deployment，more flexile service extension • Fabric network，E 2 E 100 G，can supply future 10 times traffic increasing, Three networks to One networks , unified service bearing, saving TCO 45% • Simplified protocol, legacy LDP+VPN smoothly evolution to SR+EVPN，simplified OAM • Accelerated Traffic Growth: Mobile 100%/y, Fix • 30%/y, • Mobile traffic will exceed fix traffic in 2022 Industry highest time syn. precision

China Unicom：Offering Best Experience for Enterprise Sites：A，B Bandwidth： 2 M~10 G SLA： gold, silver, copper Business Innovation Automation One-click online service Adjustment in minutes Cloud. Opera Agile Basic bandwidth： 10 M NMS Peak Bandwidth： 100 M From 30 days to 1 day Reduce 95% deployment time Automation，Multi-domain Efficiency duration： 50 hours/month Guangzhou HQ Shenzhen branch One Fiber for Mobile & Enterprise Bearing Resource utilization increased by 30%

LG U+: E 2 E Segment Routing for Automatic Connection, 90% Efficiency ↑ 4 G Transport Network U 2000 LG U+: • Cloud. VR (2019) • V 2 X(2021) • 10000+ sites will be deployed by 2019 Q 4 2 Core DC + 29 Edge DC 2 Core DC New Services 5 G Radio 5 G Transport Network How to cope with complex connection? MPLS Solution: Introduce E 2 E SR with NCE for Automatic Connection 5 G Core SR/SRv 6 • 30% OPEX to be reduced by 2020 MPLS edge DC (on planning) 5 G Operation • Full-mesh Arch. , dynamic connection • 100 x connections ↑ • South-North connection • 10 protocols, hop by hop configuration • 2 core DC + 29 Before 10 protocols 16 K CLIs Config per equip. 8+ hops configuration per tunnel Huawei SR Highlights 2 protocols 0. 5 K CLIs Config per equip. 1 hop configuration per tunnel 50 ms Protection for any failure NP-based smooth evolution to SRv 6 MPLS Now Unique 90%↑ Network configuration efficiency 10 Layers label vs 4 layers of industry for best traffic engineering

Huawei Keeps on Leading in IP Domain 1 No Mobile 5 G is coming Fixed 4 K UHD starts in 2015 Cloud Global Top Carriers 2020 Strategy Global Router [��名 称], [�] Juniper; 14. 0% Nokia; 15. 0% 1 No Core Router Other; 2. 0% Cisco; 32. 0% Huawei; 34. 0% others Nokia 4. 2% 4. 6% Juniper; 23. 0% Nokia; 5. 0% Cisco; 27. 0% Huawei; 43. 0% 1 No [类别 名称], [值] Juniper; 13. 0% Nokia; 22. 0% Source: Top 35 Operators 130+ Countries Covering Edge Router Cisco; 29. 0% Huawei; 30. 0% 2018 Q 2 300 M+ 1. 67 B+ Broadband Subscribers Mobile Users 20

Next 10 years，“New IP” Redefines Next-generation IP Network 1990，Internet Era Internet 2 G Enterprise 2019，5 G&Cloud Era Redefine Nextgen IP network 2005，MPLS Era-ALL IP Triple-Play Home Cloud+5 G Centralized TE Intelligent QOS Self-healing Non-congestion • • New Interface: PAM 4 based 50 GE/200 GE/400 GE New Architecture: Fabric, all service in ONE network New Protocol: E 2 E SRv 6, EVPN New O&M: life-cycle automation, AI empowered non-congestion network

Ovum & Huawei worked out the Experience-Centric Transport Network Solution, Helps in Maintaining High User Experience and Network Performance Key Message 1. The transport network should give a good user experience with low packet loss and latency. Future 5 G services will have even more stringent performance requirements. 2. The service assurance technique would be improved from minutes or hours to seconds or subseconds to give network operators a good understanding & clear actions for problem remediation. 3. Transtion to a new network architectyre would require a change in an operational procedure … Scan for whitepaper download

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