Accelerating application performance for the Cloud Application delivery optimization with LTM and AAM

Robert Healey

Marketing Solutions Director

F5 Networks, APJ

F5 Networks, Inc 2

The average web page

has grown

since 2008 3x 74% of users will leave a slow

web site after just

5 seconds or less

Every 100ms delay

costs Amazon 1% in

sales

Application Performance Impacts the Business

F5 Networks, Inc 3

The 21st Century Application Infrastructure

Every application is a

Web application

Users are going

MOBILE

Performance Goes beyond the server

F5 Networks, Inc 4

Application Delivery Optimization

Holistic approach to improving performance throughout the application delivery chain

Network

Connect applications and users in a global enterprise

Provide the fastest network at the lowest cost

Increase network efficiency to best utilize resources

Client

Improve the user experience for traditional and mobile

users

Deliver the right content to the right user in the fastest

time

Data center

Improve availability of enterprise applications

Increase application server capacity

Integrate new technologies without recoding applications

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Acceleration in the Data Center

Load balance

Distribute application load across multiple servers to

increase availability

Offload

Increase server capacity

Accelerate SSL processing

Manage TCP connections more efficiently

SPDY gateway

Leverage SPDY and other protocols without recoding

applications

Fast cache

Offload repetitive traffic from web and application servers

to increase server capacity

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Accelerating the Network

Compression and deduplication

Reduce amount of data transmitted

Improve network throughput and response

Increase bandwidth efficiency

Protocol optimization

Tune TCP and HTTP parameters to adapt to changing network conditions

Loss correction

Correct for high-loss networks to decrease transmission time and

improve user experience

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Accelerating the Client

Content control

Deliver content to clients with minimal network overhead

Data reduction

Optimize images and files for mobile browsers to improve

page load times

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Improving the Mobile Experience

Web performance

Optimize content for mobile devices and reduce round

trips to improve page load

times

Global load balance

Connect users to the closest application resources to

minimize latency

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Managing SaaS Performance

SaaS cache

Locally cache SaaS data to reduce page load times and

bandwidth consumption

Parking lot

Consolidate requests for remote data to reduce

bandwidth consumption

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F5 Products

Application Delivery Optimization

BIG-IP

Local Traffic Manager

LTM

BIG-IP Application

Acceleration Manager

AAM

F5 Networks, Inc 11

Mobile has unique challenges

Why is the web so slow on my mobile device?

Mobile Device

Mobile hardware CPU is 10x slower than

desktops

JavaScript parsing and execution is significantly

slower at 1ms-10ms/kb

Limited persistent and in-memory caching

Mobile Network

High packet loss rate

More congested

Connections are made ad-hoc and frequently

dropped to preserve

spectrum and battery life

High network latency: 300ms via 3G vs

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11.5.0 TCP Express

SaaS

Optimized for the device

Tailored to the location

Available everywhere

Network Client Data center

Application Services

Professional Services and Support

Built for the application

Resource

Management

Proxy

Behavior

Congestion

Control

Loss

Detection

Quality of

Service

Always on,

always fast, and

on any device

A network

built for

innovation The New TCP Express

Ack

Behavior

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Resource Management

Drop packets under pressure

Proxy Behavior

Multi-Path TCP (MPTCP)

Maximum Segment Size (MSS)

Congestions control

Mobile Optimized Profile

New Algorithms: Woodside, Vegas, Illinois, H-TCP

Loss detection

Rate Pacing

11.5 TCP Express new features

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11.5.0 Multipath TCP

Whats New

The ability to connect and maintain a continuous connection to the internet over multiple wired and

wireless connections

Use Case

Device initially connects to site over mobile network.

Device comes in range of wifi, associates with and connects over Wifi

Congestion control favors high bandwidth Wifi path

Device disconnects from Wifi but continues to use 3G network

Mobile Network 3G/4G LTE

WiFi

Mobile User

BIG-IP Platform

Multipath TCP

Servers

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11.5.0 Congestion Control Algorithms

TCP Woodside

F5 created algorithm.

Hybird loss and latency based algorithm.

Minimizes buffer bloat by constantly monitoring network buffering.

TCP Vegas Emphasizes packet delay rather than packet loss

Detects congestion based on increasing RTT values of packets.

TCP Illinois

Targeted at high speed long distance networks

Loss-delay based algorithm.

Primary congestion of packet loss determines direction of window size change.

Secondary congestion of queuing delay determines the pace of window size changes.

H-TCP Targeted for high speed networks with high latency.

Loss-based algorithm.

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Packet Loss

Event Driven Stack

Stretch ACKs

Exponential CWND Growth

High Latency

High Bandwidth

Small Buffers

11.5.0 Mobile Optimization: Rate Based TCP

Whats New

TCP Express with Rate Pacing

Rate Pacing prevents bursts

Transmission is paced smoothly by the stack

Speed of transmission determined by congestion control

Minimal overruns even in high BDP networks

Benefit

Improve the user experience by altering how packets

are sent based on feedback received from client.

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What Does This Mean For

Users

Improve your user experience to

increase sales revenue and

employee productivity

Applications

Increase availability and server

capacity to get more from your

business applications

Network

Improve network efficiency and

connect users and applications in

less time and at lower cost

SaaS

Gain better control over the

performance of third-party SaaS

applications