video traffic management

Shenick Network Systems 1

www.shenick.com

Mark Lambe Product Marketing ManagerShenick Network Systems

Efficiency vs Effectivenessin Network Test Solutions

Video Traffic Management

Shenick Network Systems 2 www.shenick.com

Survey

Which Stream is more effective in identifying issues in the video path?

Ethernet / IP / TCP-UDP / RTP / 10101010101010101010101A)

OR

Ethernet / IP / TCP-UDP/ RTP / MPEG-TS / PES /1010101010B)


Stateful vs Stateless Traffic

Stateless Traffic (Macro Traffic Generators) – Layer2-3 traffic is effective if we need to determine the estimated bandwidth in a link.

Efficient = reduces the complexity for the Operator Effective = enables Operators, predict video performance at nodes.

No detail in terms of actual Video Audio Quality performance No performance data for auxiliary services e.g. Authentication / EPG / channel zapping Low accuracy in Predicting Network performance

Stateful Traffic Layer 2-7 provides the most detail in terms of link and application performance

Efficient = One test covers all aspect of the performance e.g. EPG download, channel zap to first I-frame Effective = Real time data, no estimations required, faster resolution times Accurate prediction models

More expensive Greater understanding of network and component functionality

Fruit is more ….. than oranges


Sample Traffic Scenario

Using the table below answer the following -

Who is the happiest customer? Will John throw the TV out the window? Video Quality Average ~3.8, is this accurate? Is 720ms an accurate assessment of zap times? Are users using the service exactly the same?

4.50.51000Lucy

1.07500John

4.52700Tom

4.511200Ann

4.551000Bob

Video Quality ScoreViewing Time (mins)Channel Change time (ms)


Benefits of Granularity

Knowledge = Competitive Advantage Predicting a network’s state under varying conditions needs large volumes of real traffic flows To gain useful knowledge of the network state and performance the datamining principal is

employed to the gathered sample data. Useful techniques such as Association, Classification, Clustering and Prediction requires consistent and relevant data.

Prediction accuracy is only as good as the data gathered.

Many different forms of video transmission types Broadcast , on demand OTT Result many end-points (not all the same) in the home.

Efficient Testing at the end-user premise Emulate multiple devices, connect to multiple streams behind the CPE

Weather forecasting uses ….. Real sample data


Traffic Profiling / Consumer Profiling

Many different forms of video transmission types Broadcast live, on demand, OTT, Telepresence, Multi media calls

Many different end-points STBs, Game Consoles, PCs ….different CPUs, Memory Buffers, etc

Network ManagementIdentify/learn the characteristics of the revenue generating flows, ensure priority setting is correctNodes in the link must be capable of correctly identifying the flows priority

Efficient Network Link performance testsAggregate multiple video formats

Test functionality Examine performance on the stream

Service Provider Driven

Consumer Driven


Efficient Network Management

Utilize all resources Lab results combined with live network performance enables accurate assessment of potential

fault lines Use Stateful traffic to develop real scenarios in the lab

Knowledge is competitive advantage Accurate predictions such as likely failure points become more accurate and can be trusted

when continuous lab assessment is combined with live network data.

End-to-End It’s not always possible; especially in the case of multiple operators to control quality settings,

ultimately the key then is to examine service performance in the end-user premise

Expanding reach of personal devices iTHIS - iTHAT Network ability to cope with the growth in devices consuming video


Future Requirements

The diminishing IPv4 address space Application testing with IPv6 Effective migration strategies – Dual-Stack Lite

More video type applications The expanding reach of Telepresence solutions

Expanding reach of personal devices iTHIS - iTHAT Network ability to cope with the growth in devices consuming video


diversifEye

diversifEye emulates stateful clients with real world functionality and features (layer 2-7).

diversifEye may support a mix of client and/or server applications using IPv4 and/or IPv6 on a single test interface port.

diversifEye is used in ‘Per flow’ application emulation and performance analysis of multiple environments including : xDSL, xPON, IMS, CABLE, WiMAX & LTE

Capture and replay TCP, UDP (files >1Gb)

Fully compliant TCP stack

- Multicast IPTV (IGMPv1,2,3 & MLDv1,2)

- Video On Demand (RTSP, trick play, SIP or HTTP enabled RTSP)

- Telepresence

- Voice over IP (SIP/RTP, Multimedia, Dual hosted, Nat Traversal)

- Voice and Video Media Analysis

(both no reference TVQM/R factor and full reference PEVQ/PESQ)

- HTTP (Client and/or Server, POST supports file attachments)

- SMTP & POP3 (Client and/or Server, per client unique messaging)

- P2P ( with or without signatures)

- DHCPv4,6 (client and/or server, configurable Options)

- Service Layer PPPoE and VLAN (incl. double tagged)

- TWAMP (Client/Sender and/or Server/Responder)

- Secure Media (TLS/SSL, X509 cert., CA)

- PPPoE (client and/or server, PAP/CHAP)

- Security Attacks with DDoS(SYN/RST/UDP/ARP floods) and Virus/Worm Attacks

- FTP (passive and active, full command set)

- RTP (media only)

- SIP with multiple RTP streams

- Per Application QoS (DSCP/ToS)

- IPv4/ IPv6 / Dual-Stack Lite enabled application flows

Sample features Overview


servicEye Spider

- Web managed Network Analysis Solution, collecting results from remote end-points or Spider clients.

- Used to test service performance & media quality

i.e. IPTV, VoIP, web, email, etc..

- Is a software solution consisting of a server and client software modules. Hardware independent.

- Centrally managed clients, with remote access

e.g. take control of any Spider client.

- Full support for IPv4 and/or IPv6 flows. Test mixed traffic flows IPv4/v6. Support for Dual Stack Lite.

- Network Access independent. Test fixed line xDSL, xPON, CMTS or wireless IMS, WiMAX, LTE, etc..

- Proactive quality testing, providing Analysis of individual emulated subscribers.

Sample features Overview

•Remote Network Test with centralized management and control.

•Tap into the power of a sophisticated lab tester from multiple remote network sites.

Shenick Network Systems 11

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