Jul 24, 2015
Software Defined Networking:
Enabling The Mobile Workplace
3+ mobile devices per user: strains network capacity
Sticky clients don’t roam well: bit rate and app performance degrade
Unpredictable client density: network must adapt to spontaneous collaboration
Wi-Fi Challenges In The Mobile Workplace
Common UC Over Wi-Fi Challenges
•Wired network may lose traffic
priority indicators
• Legacy wired network may
incorrectly tag traffic
•UC Servers are often not
configured to tag
Client Side Limitations Wi-Fi Limitations Wired LAN Limitations
• RF is a limited bandwidth
resource
• WMM traffic prioritization
depends on wired network
prioritization.
• No troubleshooting capabilities
for Lync
•High Client Diversity
•BYOD Security and on-boarding
•Client Roaming not optimized
•Client do not support upstream
tagging
SDN Architecture Overview
SDN
Controller
Southbound APIs
(OpenFlow, etc.)
Northbound APIs
(RESTful; undefined)
• QoS for voice, video, and desktop sharing Lync flows
• Real-time monitoring for voice and video call quality
• App RF technology enables Lync aware RF Management
• Remarks wired and wireless traffic with the right QoS levels
Application
Layer
Controller
Layer
Infrastructure
Layer
Application Fingerprinting and App RF for Lync
Automated Wi-Fi Traffic Engineering
Post Call Statistics
DiagnosticsAru
ba M
OV
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Arc
hitect
ure
Aruba SDN Architecture
Lync Aware Wi-Fi In Action
Traffic streams as Lync voice,
video and desktop sharing
and tagged appropriately
Traffic Re-tagging
Load balancing and Client
Match ensure reliable voice
and video communications
Traffic Re-tagging
Voice, Video and
Desktop sharing
streams are
appropriately tagged
over LAN, WAN and
Wi-Fi
Traffic Prioritization
Lync aware adaptive
Radio Management,
Airtime Fairness ensure
optimal RF
performance
RF Optimization
The SDN Manager
sends in-call and post-
call statistics to the
controller
UC SDN API Information
Better Visibility, Faster Root Cause Analysis
Managing Lync over Aruba Wi-Fi
• System and access point Lync
utilization
• Centralized view of real-time call data:
caller, callee, R-value, packet loss, jitter
• Correlates call quality with Wi-Fi client
health
• Historical call quality information for
users and access points
• Real-time per-device, per-user active
sessions data
• Identifies call roaming events, tagging
errors, device population
Detailed diagnostics and monitoring
data helps the IT team to manage,
monitor and troubleshoot Lync over the
Aruba Wi-Fi
Aruba Lync Dashboard Overview
Usage Trends Troubleshooting
Is the Problem Wi-Fi, or Something Else?
Wi-Fi Problem Something Else
All Good!
Identify Client Configuration Errors
User – “Jenny” – Calls Help Desk
User-Specific Trends
Individual Call Records
User – “Jenny” – Calls Help Desk – Troubleshoot Specific Call
QoS Modifications and Quality Scores
User – “Jenny” – Calls Help Desk – Troubleshoot Specific Call
Individual Call Details
Identifying Trouble Areas – Call Quality on a Floorplan
• Fosters mobility and collaboration by leveraging the Lync SDN API to provide contextual awareness and auto-adaptation to users, devices, applications, and locations
• Delivers fine grained visibility into client, device, and network operation to expedite root cause analysis and problem remediation
• Delivers a better user experience wherever you work or roam
+ =
Lync SDN API Information
• www.microsoft.com/en-us/download/details.aspx?id=39714
• blogs.technet.com/b/lync/archive/2013/12/17/lync-and-software-defined-networking.aspx
Aruba Wi-Fi For Lync Information
• www.arubanetworks.com/solutions/lync/
• E-mail: [email protected]