The document discusses the benefits of using Software-Defined Networking (SDN) to improve the quality of experience (QoE) in Unified Communications and Collaboration (UC&C) environments. It highlights challenges posed by legacy networks and explains how automation through SDN can simplify QoS configuration and enhance network performance. The implementation of SDN is positioned as a strategic advantage for deploying QoS, traffic engineering, and security tailored for UC applications.

3. Automationofend-to-end
QOS
Improve end user experience for unified communications and
collaboration with Software -defined Networking (SDN)

4. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.2
Today’s UC&C Challenges
Networkissuescause60%to80%ofpoorend-userQoE
LegacyNetworkshavepoorvisibilityintoreal-timetraffic
• Lync uses encryption by default, making DPI difficult and unreliable
• Skype tries to hide itself from networks
Traffic engineering & QoS is complex…easily broken
• Requires brute force static policies that must match application server settings
• Intermittent problems are tedious to diagnose, especially for Softphones and BYOD
“Quality of user experience is only as
good as the quality of the network”

5. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.3
Legacy Traffic Engineering Slows Application Delivery
UC / Application Admin
Time in Weeks
Ongoing
Monitoring &
Troubleshooting
Identify
traffic
classes
Configure
UDP ACLs on
Switches
Inventory
WAN circuit
sizing
What
Codecs?
Remark DSCP
for untrusted
applications?
Lock down UDP
port ranges used
for voice/video
Identify
sites
Define Erlang
traffic
models
Provision
CAC across
sites
Validate
SLAs
Ok, ready to
start rolling out
Enable DSCP
…on all
endpoints
… Deploy across
Campus &
Branch Sites
Network Admin
SDN will reduce cost of deploying QoS, Traffic Engineering and Security for UC

6. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.4
Automated QoS SDN Application
UC&C
Infrastructure
Network
Element
Network
Element
Network
Element
Network
Element
Network
Element
Network
Element
Network
Element
SDN
Controller
Topology Inventory
Flow
Programming
Statistics
Automated QoS
Network Service
Application
QoS Mapping Policy
SDN Controller North-Bound Interfaces
Automated QoS Network Service API Administrator Interface

7. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.5
HP Lync SDN Demo video

8. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.6
User: LindaUser: James
HPUC&CSDNApplicationforMicrosoftLync
HP UC&C SDN
Application
HP VAN SDN
Controller
Active
Directory,
Exchange &
SharePoint
.
Lync
SDN API
HP Server HP Server
HP OpenFlow Switch
HP OpenFlow Switch HP OpenFlow Switch
Ringing…
Dialog Start
OpenFlow
Modify QoS DSCP Rules

9. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.7
Virtual Application Networks SDN Controller
Infrastructure
Control
SDNArchitecture
Programmable network aligned to business application delivers agility
Open SDN portfolio, SDK, App Store enable Ecosystem
Application
Virtual Cloud
Sentinel
Load Balancing
Partner Apps
UC&C
ConvergedControl
Design
Implementation
& Support
Services
Over 25 million ports across 50 Switches 10 Routers
Overlay
VXLAN,
NVGRE

10. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.8
End-to-End SDN
Branch Campus DC
v - Virtual
p - Physical
HPVirtualApplicationNetworks:End-to-endSDN
HP is the only vendor pursuing
an SDN strategy which
comprehends the entire path
from user-to-datacenter and
the entire technology stack
Branch Campus DC

11. © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.
BackupSlides

12. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.10
Hybrid Mode: a path to SDN
Access
Switch
QOS SDN
Controller
Access
Switch
AP
Wi-Fi
OpenFlow enabled hybrid-mode
• Enforce policies as traffic enters the
network
• Supports phased migrations, since
rest of network can be legacy gear
• Use SDN for new/difficult features

13. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.11
Hybrid SDN QoS Model for UC&C
Access
Switch
QOS SDN
Controller
NBAPI: Dialog Start
Access
Switch
AP
Wi-Fi
BE
Best
Effort
BE
Best Effort

14. © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.12
Hybrid SDN QoS Model for UC&C
Access
Switch
QOS SDN
Controller
OpenFlow: Set QoS Remark
Network now UC&C aware
and enforcing ‘trusted’
per-session dynamic policies
Access
Switch
AP
Wi-Fi
EF
EF
Ingres: Best Effort
Egress: EF
Ingress: Best Effort
Egress: EF
• Auto QoS for Lync is secured
• A Hybrid SDN model, for ease of
deployment and reduced risk