ADVA's Christoph Glingener and Simon Williams of Openreach shared insights on multi-operator networking solutions at this year's Namex annual meeting.

1. Sharing is caring
June 2021
Real-life shared infrastructure experience

2. © 2021 ADVA. All rights reserved.
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Your hosts
Simon Williams Christoph Glingener
Head of high-bandwidth optical services Chief technology officer

3. Sharing is caring – part I
Christoph Glingener, June 2021
Real-life shared infrastructure experience

4. © 2021 ADVA. All rights reserved.
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ADVA fundamentals
ADVA Optical Networking SE (FSE: ADV)
• Founded in 1994
• Headquarter in D (Munich/Meiningen)
• €565m revenue(1)
• 1900 employees
Customers
• Telecom, internet and cloud
• Enterprises, government, R&E
Products and solutions
• Optical networking (70%)
• Packet edge and virtualization (25%)
• Synchronization (5%)
(1) 2020

5. © 2021 ADVA. All rights reserved.
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Infrastructure sharing will lower the increasing investement needs
Example of 5G network build-out
Increased investment needs
• Spectrum
• RAN infrastructure
• Macro layer densification
• Small cell (outdoor) and indoor densification
• Transmission increase, fiberization
• Core and features
• C-/U-plane separation
• Network slicing
Build commits and deadlines
Higher 5G ARPU?
Why sharing?
Source: McKinsey, 2018
+300%
+110% +60%
TCO

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Higher layers
Virtual network functions, applications, …
Active services
RAN sharing Sync, compute, …
xPON, Ptp L2, … Wavelength, spectrum, OTN, L2+
xDSL, G.fast, …
Passive transmission media
Radio spectrum
Fiber (FTTH/B) Fiber (backhaul) Fiber (metro/core)
Copper
Passive infrastructure
Tower Duct Cabinets DC space/racks/…
What can be shared?
MVNO, vISP
MNO,
ISP
Wholesale
Operator,
Neutral
Host
Focus of this workshop
Wholesale opportunites (regulated or not)
Largely unbundled
Licensed (unlicensed), $$$
Partially regulated (e.g., FCC, Telecom Act 1996, USA)
Partially regulated (e.g., OFCOM, UK, NBN, Australia)

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… and why demarcation and disaggregation is essential!
From basic to advanced transmission …
Service
Packet services
Towers, footprint, premises, etc.
Dark fiber (unmanaged)
Optical services
Edge compute e.g.
DU hosting
Unliked,
maintenance mess
Demarcation Metering Assurance
Compute HW
Open SW/APIs
Open APIs
Terminal
API
ROADM
API
Amplifier
API
Vertical – disaggregation – horizontal
Need for
• Standards and open definitions
• Interfaces, APIs

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Standards / options for demarcation and service level agreements
Potential services
Dark fiber (managed)
Spectrum
Active wavelength, OTN
Optical
services
Security aaS
Synchronization aaS
OTDR (loss, power levels)
OpenROADM, G.807, G.872
OTN G.709
OOB(OTS), IB(PTPoOTN), SyncAssure
AESoOTN, Key IF/Distri & Mgmt
ONF TAPI,
REST, …
L2/3 switched/aggregated
Packet
service
Synchronization aaS
Security aaS
IEEE 802, ITU Y.1731, IETF RFCs, MEF, …
1588v2 (PTP), SyncAssure
MACSec/IPSec, Key IF / distri & mgmt MEF
PRESTO,
REST, …
Compute, IaaS
NFV aaS, PaaS
SaaS
Hosting ETSI NFV, …
Container, hypervisor/VM, …
Many ETSI NFV-O
orchestrator,
Kubernetes ..
Definition/demarcation/assurance Mgmt / SDN
SLA
components
Bandwidth /
spectrum
Availability Latency Sync Security Compute
SW
subscription

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Verizon‘s Optical Wave Service – Optical Extension (OWS-OE)
Applications
• Mobile fronthaul
• Mobile backhaul
• Business services
SLAs
• Availability, insertion loss, …
Global Telecoms Business
(GTB) 2016 Innovation
Award for Verizon/ADVA
Example 1: managed dark fiber service
Central
office Customer
DWDM
network
Up to 30km
Monitored
by ADVA ALM

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Openreach‘s small cell backhaul packet service
Applications
• Small cell BH point-to-point packet service
• 1G + sync
• Up to 25km
SLAs
• Availability, rich L2 features, …
• Sync is transport, i.e., customer provides reference
Example 2: small cell street access

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Transport hubs/underground, tall buildings, etc.
Example 3: neutral host network
5GC
DU
UL1/L2
Neutral host
CU
L3 MNO #1
MNO #2
Majority of customers
Processed by
centralised core
Some customers
Processed by edge cores
Enabling local command and control
in case of network disruption
Realization, SLAs
• We should talk … ☺

12. 12
Sharing is caring: part II
Real-life shared infrastructure
experience
Simon Williams
June 2021

13. 13
About Openreach and
its customers Openreach’s portfolio
Full fiber broadband:
network topology impact
Strategic drivers for
shared infrastructure
Barriers to
shared infrastructure
Opportunities in
shared infrastructure

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Openreach is the UK’s digital network business
The country's largest team of telecoms experts
We operate in
5.6kexchange
buildings
27k vans
We have over
109k
street cabinets and 4.9m
distribution points (poles
and underground points)
Our network has
We’ve hired 6.5k
new trainee engineers
over the last two years
£12bn
Full fiber network build
is the second biggest infrastructure
project build in the UK after HS2
32m
homes and businesses large and small,
to the wider world
We connect
and we’ve invested
£14bn into our
network over
the last 10 years
£5bn
we
are a
company
…including
83 electric
vehicles so far
supporting over
660
Communications
Provider (CP) customers
34k people
including 28k field engineers
Over

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Our network
The network technology that supports our products
Backhaul
CP domain
Fiber
Copper
cables
Local
exchange
CPs’ networks
beyond the
Openreach exchange
Copper
street
cabinet
Standard broadband
(up to 24Mbit/s)
G-fast
‘side pod’
Connectorized
block terminal
(CBT)
Fiber
street
cabinet
– DSLAM
Superfast broadband
(up to 80Mbit/s)
Ultrafast broadband
(up to 330Mbit/s)
Ultrafast full fiber broadband
(up to 1Gbit/s)
Ethernet
(up to 10Gbit/s)
Optical
(up to 400Gbit/s per wavelength)
Local
exchange
Dark fiber
(limited coverage)
Local
exchange Ethernet
(up to 10Gbit/s)
Aug ‘21 for access fiber
Duct and pole access (DPA)
Lets other providers attach their
equipment to our poles and install
sub-ducts and cables in our
underground ducts with our cables

16. 16
Target
25mhomes and businesses by end of 2026
Full fiber broadband: a platform for UK growth
Our progress
c.42k
per week ramping up
significantly to meet ambition
premises
Building
to
including at least
in the
‘final third’
6.2m
Weekly full fiber sales doubled in 12 months
1m+
customers on
our full fiber platform
560
cities, villages and market towns
locations and
counting in the plan
Over
300
Over
providers ordered full fiber, including BT,
TalkTalk, Sky, Vodafone, Zen and many more
internet service
current footprint
4.9m+
… also driving consolidation of ISP handover locations and significant network augmentation

17. 17
Alien
wavelengths
Enabling operators to extend core network reach using common core – backhaul vendor
equipment however only deployed at one end of each Openreach managed service.
In the example below, saving 4x 40Gbit or 4x 100G transponders and associated optics.
Single ended wavelength
Remote
customer site
CORE
NETWORK
Fiber bearer #1 Fiber bearer #2 Remote
customer site
Optical shared infrastructure successfully deployed

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Filter Connect Providing operators open line access to the optical filters deployed as part of the Openreach
manged service such that they can parallel run their own network components.
Key to the popularity of this offering is flat opex, irrespective of the transported bandwidth.
Optical shared infrastructure successfully deployed
L2
C2
L1
L3
C1
C2
L2
C1
L3
L1
Openreach
NTE
A A
Cn
C3
Customer
NTE
Ln
Openreach
NTE
Customer
NTE
Ln Cn
C3
Openreach service demarcation
P2
P1
P3
Pn
P2
P1
P3
Pn

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Strategic drivers for shared infrastructure
COSTS
removing unnecessary
box-stacking
ENVIRONMENT
carbon neutral by
2045 (90% by 2030)
PERFORMANCE
through better
integrated solutions
ENABLEMENT
of better operational
engagement
Efficiency

20. 20
Barriers to deploying shared infrastructure
• The doubting Thomas
• Risk to share of wallet
• The air conditioning syndrome
• Ultimate control of the device and SLAs
• Traffic management visibility
• Interoperability standards and willingness

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Opportunities in shared infrastructure

22. Thank you
IMPORTANT NOTICE
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Copyright © for the entire content of this presentation: ADVA.
cglingener@adva.com simon.3.williams@openreach.co.uk