ANAGRAN FLOW MANAGEMENT A RADICAL NEW ROUTER

ANAGRAN FLOW MANAGEMENTA RADICAL NEW ROUTER

NIYAS BASHEER KEPAHECS036

Government Engineering CollegeSreekrishnapuram

Palakkad

November 25, 2010

NIYAS BASHEER KEPAHECS036 (Government Engineering CollegeSreekrishnapuram Palakkad)Anagran Flow Management November 25, 2010 1 / 18

CONTENTS

Evolution

Features of Flow Manager

Fast Flow Technology

Intelligent Flow Delivery

Behavioral Traffic Control

Comparison with Packet Router

Why Flow Manager?

Scope for Additional Work

Conclusion


EVOLUTION

Rapidly expanding internet traffic

An explosion in voice and video applications

Existing system IP packet routers:

Considers data as small independent packetsTreats video and audio packets as loose data entitiesDuring congestion random discard of packets

To overcome this Anagran flow manager was introduced


FEATURES OF FLOW MANAGER

Fast Flow Technology

Intelligent Flow Delivery

Behavioral Traffic Control


FAST FLOW TECHNOLOGY

In Fast flow Technology traffic management and forwarding packets arebased on flows


HOW FLOW IS IDENTIFIED?

Flow is identified using packet header


WORKING OF FAST FLOW TECHNOLOGY

Packet Routing:1 Receive packet2 Basic security check3 Apply QoS and ACL rules4 Compute next hop and route to o/p port

Fast Flow Technology:1 Receive Packet, look up flow2 If first packet process it and route3 Else switch to o/p port4 Manage flow rate5 Update flow status6 Transmit


INTELLIGENT FLOW DELIVERY

Flow manager maintains information of every flow by monitoringoutput load on each port

When congestion occurs ,since it has information of each flow,packets will be discarded only from a single flow

Flow manager protects stream based transmissions like videos, audioetc

Flow manager detects P2P because it relies on many long durationflows per user and can thereby limit their transmissions to any rateyou need


For TCP traffic, IFD ensures Equitable use of network capacity for alltraffic based on flow class


For UDP traffic flawless quality by automatically invoking CallAdmission Control(CAC) whenever incoming stream threatensexisting streams


BEHAVIORAL TRAFFIC CONTROL

BTC basically ”watches” every flow

Compare each flows behavior with set of operator defined rules perflow class

BTC can identify ”suspect flows” and take corrective actions

BTC provides network the ability to optimally manage all traffic inreal time by class


Unlike common traffic control mechanisms, BTC doesn’t halt oreliminate any traffic types

It manages entire traffic mix to allow all forms of network traffic to”peacefully co-exist”


COMPARISON WITH PACKET ROUTER


WHY FLOW MANAGER?

Major cost reduction through full efficiency.

Insure quality voice and video even mixed with data

Eliminate delay

Protect time critical traffic

Provide accurate flow records for some or all flows

Reduce power


SCOPE FOR ADDITIONAL WORK

Precedence priority for emergencies and load control

Security Control

Strong Authentication of User, Weaker Securing of Flow

Recognize DoS attacks and Block Bots

Recognize Virus Attacks and Block them


CONCLUSION

Manages rich media network traffic based on flows rather thanindividual packets

Allows instant classification and assignment of appropriat policies pertraffic type

Improved bandwidth utilization

Increased throughput

Protection of Stream based Transmission


REFERENCES

1 white papers Flow Rate Management and TCP Rate Control WithIFD [Intelligent Flow Delivery].

2 http://www.ietf.org/html.charters/wg-dir.html

3 Technical details on flow management and the Anagran FR-1000,http://www.anagran.com.

4 http://www.packet.cc.

5 www.netseminar.stanford.edu/seminars/01 17 08.ppt

6 spectrum.ieee.org/computing/networks/a-radical-new-router/0.

7 www.packet.cc/files/IFD2c.pdf.

8 net.educause.edu/Elements/Attachments/rfi/vendors/ anagran.pdf.


THANK YOU.


ANAGRAN FLOW MANAGEMENT A RADICAL NEW ROUTER

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