Sharon Z Barkai ConteXtream Agenda Carrier Infrastructure Today >Functions & Networking: Problems Infrastructure Virtualization >Principles >Network Virtualization Overlays >OpenFlow + LISP: SDN Fabric >EPC-Gi Virtualization Example Learnings & Results from Production Deployment Application Driven SDN 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. Learnings from Carrier SDN Deployments
Open Networking Summit
Sharon Z Barkai

4. 2
Carrier Infrastructure Today
Functions & Networking: Problems
Infrastructure Virtualization
Principles
Network Virtualization Overlays
OpenFlow + LISP: SDN Fabric
EPC-Gi Virtualization Example
Learnings & Results from Production Deployment
Agenda

5. 3
Network Functions Tied to
Routing Locations
Network Programing Tied to
Routing Interfaces
VRF, VPLS,
LSP,VLAN..
Carrier Network Infrastructure Today

6. 4
Some functions can fit inside existing
boxes
Require years of multi-vendor product
roadmap
Change box capacity when enabled
Cause redesign of topology
aggregation..
Most functions don't fit existing boxes
Are organized as "accessory" rails
By function-sequence permutation..
Awkward Inline Programming
Switching, Routing, and ..Rails?

7. 5
Packet Gateways
Load Balancers
DPI Boxes
Optimizers & Transcoders
Firewalls & Service Nodes
IMS Cores
Session Border Controllers
Switches & Routers
All Sorts of Boxes

8. 6
Users, Regions, Subnets, are tied
to core resources
Capacity has to be pre-planned
per regional peak
Causes fragmented deployments
Causes complex and slow feature
velocity
Causes low average utilization
20%80%
Standby
80% 20%
Fragmentation, Waste, Stranded Resources

9. 7
Network Functions Network Overlays
Infrastructure Virtualization Principles

10. 8
ALG
Switch
3rd Party
OpenFlow Switch
Controller (Flow
Handler)
Mapping
System
OpenDaylight
CXTR
Subscribers &
Functions
Network Virtualization Overlay (NVO)
Underlay & Mapping

11. 9
Management and
Orchestration
SDN LISP Fabric Layout
ALG
Switch
OF Switch
Controller (Flow
Handler)
Mapping System
OpenDaylight
CXTR
CXTR
Access Internet
CXTRCXTR
Underlay Spine &
Backbone

12. Connecting the Gi Cloud
RAN Internet
Overlay & Mapping
TCP
Optimization
Video
Optimization
Header
Enrichment
RouterPDN
Gateway
AAA
Subscriber
Registration
and Mapping
Instantiation

13. 11
Subscriber A
Subscriber B
Encap
Decap Encap
Decap
Mapping EPC-Gi Flows On SDN Fabric

14. 12
Production Deployment Stats – US Tier-1 Mobile Network
22 sites
Over 50 cities
Over 50M subscribers
Over 9 years cumulative up-time
Over 1,000 TeraBytes processed per day
Over 160Gbps daily peak download traffic rate
Over 13,000,000,000 header enrichments per day
Over 30,000,000,000 analytics records generated per day
39% download rate improvement due to TCP-Optimization on LTE
All in software on COTS servers

15. 13
IP
Mapping Database
North Bound
NVE
NVE
NVE
NVE
FunctionsUsers < - - FlowMapping - - >
Thank You