Francisco-Javier Ramón Salguero Telefónica NFV-SDN Synergy Technology Track Session ONS2015: http://bit.ly/ons2015sd ONS Inspire! Webinars: http://bit.ly/oiw-sd Watch the talk (video) on ONS Content Archives: http://bit.ly/ons-archives-sd

3. Building a Digital Telco
Telefónica I+D – Global CTO Unit
03.04.2014
Network Virtualisation
experiences in Telefónica
Francisco-Javier Ramón Salguero
E-mail: fjrs@tid.es
Twitter: @fjramons

4. DISCOVER, DISRUPT, DELIVER
Business development requires a continuous evolution of our network…
but it still seems unable to evolve fast enough
“The network is the barrier for
the cloud”, Nicira Networks
Network elements are
 Vertically integrated
 Proprietary
 Complex to operate
… which has resulted in
great challenges for
introducing new ideas and
differential features by
telco operators

5. DISCOVER, DISRUPT, DELIVER
We have entered the Software-defined era:
Telco evolution focus is shifting from hardware to software
• Very intensive
in hardware
• Software is not
core
• Very intensive in
software
• Hardware is a
necessary support
x
HARDWARE SOFTWARE+
- +
-
Big old telcos Internet players
We need to adapt to survive

6. 4
SOFTENING THE HARDWARE:
An opportunity for more
flexible networks?

7. DISCOVER, DISRUPT, DELIVER
Network functions are fully defined by SW, minimising dependence
on HW constraints
Network Virtualisation provides a mean to make the network more
flexible, taking for granted a common HW layer
DPI
BRAS
GGSN/
SGSN
Firewall
CG-NAT
PE Router
VIRTUAL NETWORK
FUNCTIONS
COMMON HW
(Servers & Switches)
FUNCTION
CAPACITY

8. DISCOVER, DISRUPT, DELIVER
Which translates to a proper balance of NFV & SDN
BNG CONTROL POOL
MGMT
CG-NAT
SW-defined network functions
 Separation of HW and SW
 No vertical integration
- HW vendor ≠ SW vendor ≠ Mgmt vendor
 Once network elements are SW-based,
HW can be managed as a pool of
resources
NFV
Interconnecting Virtual Network
Functions (a.k.a. backplane)
 Separation of control and data plane
 Easy orchestration with SW domain
SDN
DHCP
UPnP
TR-069
IPv4 /
IPv6
Session
mgmt NAT
NAT
ctrl.
Pool
admin

9. DISCOVER, DISRUPT, DELIVER
YES, WE DEVELOP!
CREATING THE FUTURE
REQUIRES GETTING
THE HANDS DIRTY

10. DISCOVER, DISRUPT, DELIVER
Residential Virtual CPE:
recovering positions in the value chain
• Simple, stable along the time and cheaper
customer premises equipment
• Quick and transparent migration to IPv6
• Service evolution and operation is supported inside
telco network
• Monetize cloud and video services (virtual set top
box)
• Monetize security and digital identity features
EXPLORE PoC TRIAL DEPLOY
MATURITY LEVEL
SwitchAccess Point Módem
Virtual
CPE
FW
TR-069
NAT
UPnP
DHCP
IPv4/IPv6
STB
Home environment
Telco Network
environment
Shifting network functions deployed in home
environment to the network…
Live trial today
Commercial before end 2014

11. DISCOVER, DISRUPT, DELIVER
SW-based DPI Probe (Deeper)
• >80 Gbps line rate per server
• Stable signatures
• Flexible data analysis and signature
upgrade
• Forensic analysis feasible.
EXPLORE PoC TRIAL DEPLOY
MATURITY LEVEL
RAW USER TRAFFIC
OF Controller
OF Switch
Deeper
REAL-TIME
ANALYSIS
Network Big
DataRELEVANT
INFO
Metadata interface
RAW USER TRAFFIC MITIGATION
Copy
POLICY
DECISIONS
Security
Alarms
OpenFlow
Other data
xDRs
CENTRALISED INTELLIGENCE
NFV
domain
SDN
domain

12. DISCOVER, DISRUPT, DELIVER
SW CG-NAT: Low-cost high-performance NAT
• NAT44 function (translates from a private IPv4 address and port to a
public IPv4 address and port, and vice-versa)
• Support of overlapping addresses and tunnelling
• Auto-provisioning of NAT sessions per access line
• 40 Gbps full-duplex line rate per server
EXPLORE PoC TRIAL DEPLOY
MATURITY LEVEL
CG- NAT

13. DISCOVER, DISRUPT, DELIVER
Quagga-based SW-Router
• Common routing protocols supported and
extended by open source project.
• Well-known router command line.
EXPLORE PoC TRIAL DEPLOY
MATURITY LEVEL
Leverage on open source routing project(Quagga) as rich and
widely tested protocol suite while assuring data plane performance
OPEN-SOURCE CONTROL
PLANE
(Quagga + Linux)
OPTIMIZED
DATA PLANE
(DPDK-based)
• High-performance line-rate data plane.
• Running as separate process, does not lead to
licensing issues.

14. DISCOVER, DISRUPT, DELIVER
SW BRAS: Simplified BRAS
• QinQ termination
• LPM Routing
• GRE tunnelling (reference for wholesale services)
• MPLS tunnelling
• 40 Gbps full-duplex line rate per server
BRAS
EXPLORE PoC TRIAL DEPLOY
MATURITY LEVEL

15. DISCOVER, DISRUPT, DELIVER

16. DISCOVER, DISRUPT, DELIVER
1. Network Virtualisation is not Cloud Computing
The network differs from the computing environment in 2 key factors:
Data plane workloads
(which are huge!)
Network requires shape
(+ E2E interconnection)
NEED OF HIGH AND PREDICTABLE
PERFORMANCE (as with current equipment)
GLOBAL NETWORK VIEW IS
REQUIRED FOR MANAGEMENT
1
2
…which are big challenges for vanilla cloud computing
…and most of industry is offering to Telcos just IT based cloud
products as network virtualization environments

17. DISCOVER, DISRUPT, DELIVER
2. High and predictable performance is achievable
(e.g. vCPE, vCG-NAT, vBRAS…) as long as you know how!
@Cloud
VM
Bare
Metal
Acceptableperformance
Bare
Metal VM
@Cloud
GAP
x10
Bare
Metal
VM @vPoP
EXECUTION
MANAGEMENT
EXECUTION
MANAGEMENT
What defensive
Industry says
What can be achieved
doing things well(*)
80 Gbps per COTS blade
(*) ETSI NFV Work Item “NFV Performance & Portability Best Practises”:
DGS/NFV-PER001 Current version: v0.0.7 (stable draft – 15/10/2013)

18. DISCOVER, DISRUPT, DELIVER
3. Transformation can be accelerated, co-developing
in a fast lane
PoC
Develop
Time
AVAILABLE
Industry
SDOs & de facto
technologies
Exploration
Trial&
Industrialised
product
Deployment
Months
Open source
& basic technologies
Standardise
Drive
ROADMAP
ACCELLERATION

19. DISCOVER, DISRUPT, DELIVER
4. More work is needed on closing the gaps and
getting the industry focused on providing real value
Commodity HW
OS + Hypervisor
Commodity Switching
infrastructure
Virtualised
Infrastructure
Manager
VNF Manager
Virtual Network
Functions
Orchestrator
Legacy OSS/BSS
Current State
of the Art is
good enough
(if properly
arranged)
ADD VALUE
HERE: Industry
should focus on
providing
differential VNFs
and Network
Orchestration
ADD VALUE HERE:
Industry should
focus on providing
differential VNFs.
Credible ROADMAP
needed!!
Network Virtualisation Infrastructure and its Management should
become COMMODITY
Network Virtualisation Infrastructure and its Management should become
COMMODITY
Work is needed
in Open Source
to AVOID
proliferation
of VERTICAL
SOLUTIONS

20. DISCOVER, DISRUPT, DELIVER
18
OUR NEXT STEP:
Network Virtualisation Reference Lab @ Telefónica
NFVO
Proper HW &
Hypervisor
config
ADD VALUE
HERE: Network
Orchestration
on top of
Carrier-grade
OpenStack
VNFs
ADD VALUE HERE:
Simplest integration
NFVI VIM = OpenStack++
BASELINE
TECHNOLOGIES
ECOSYSTEM
ECOSYSTEM
Add your
logo hereWe want your logo here
Carrier-grade
OpenStack
going to
upstream
development

21. DISCOVER, DISRUPT, DELIVER

22. DISCOVER, DISRUPT, DELIVER