webinar voip 2006

8/8/2019 Webinar Voip 2006

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Foundry Proprietary - Copyright 2006

Is Your Network Ready for VoIP?Gary Hemminger

Director, Product Marketing

Foundry [email protected]


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Is Your Network Ready for VoIP?

VoIP vs. Data in an IP world

VoIP Network Quality IssuesVoIP and Data Security

The Forgotten Factors

Power Management Environment Costs

Choosing Network and IP Telephony Vendors

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VoIP vs. Data in an IP World

In an IP network the default is to deliver the data in a best effort, net neutralmanner, independent of content

This means that traffic with specific delivery requirements, like VoIP, may not be deliveredsuccessfully

It also means large volumes of data traffic could swamp voice traffic and increase latency& jitter to unacceptable levels for human speech

What are latency and jitter, and why are they important to VoIP traffic?

Latency refers to a delay in packet delivery

Jitter is the variation in the time between packet arrival Both are affected by network design, quality of service, queue arch.

In the world of IP, Data is not very sensitive to latency or jitter.

Instead, data is loss sensitive. Eg. File transfer likes error free communications

But VoIP traffic is very sensitive to latency & jitter

Human voice conversations require specific delay characteristics and small variations inpacket arrival times.

How do we guarantee VoIP traffic is delivered with low latency and jitter, withhigher priority that normal data traffic, to ensure high quality voice calls?

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4/16Foundry Proprietary - Copyright 2006

Quality of ServiceGuaranteed VoIP Network Call Quality

VoIPTraffic

DataTraffic

Converged TrafficCall Manager

QoS network configurations insure that VoIP traffic is delivered with guaranteed quality

QoS takes advantage of high speed buffering and prioritization in the switches/routers

to deliver traffic at high, low, medium priority (with a variety of algorithms)QoS config uses priority bits in the L2 or L3 headers to signal priority

L2 standard is IEEE 802.1p, L3 is DSCP/ToS

Configuring this across the entire network can be very tricky & hard to validate

QoS guarantees VoIP call hashighest priority

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QoS Solution Provide AutomaticHonoring of L2/L3 QoS Priorities

Layer 3 QoS Support

PoE Stackable

PoE Chassis

Cisco Mitel Avaya Siemens Nortel Shoretel

Automatic honoring of 802.1p and DSCP

Eliminates manual configuration

Insures VoIP traffic gets high quality

Simple mapping mechanismsfor L2 to L3 QoS mapping andremarking

Layer 2QoS Support

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Embedded L2/L3 Switch Security Support

Network Switches, Routers, & Access Points

Call Manager

App & Web Servers

Radius, DNS, DHCP

Multiple endpointsIEEE 802.1x + MAC Authentication

AccessPolicy

DoS attack protectionCPU protectionRate limiting

Hardware-based ACLsDHCP, ARP, IP spoof protectionRogue AP detection & suppressionAccess policy enforcementThreat control enforcementEmbedded sFlow traffic monitoring

L2/3 Network Security Concerns-Denial of Service (DoS) attacks

-Spoof attacks-Rogue wireless Foundry Integrated Security

Features

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Solution Converged Network SecuritySolutions

Network Switches, Routers, & Access Points

Call Manager

App & Web Servers

Net Mgmt

Zero-Day Anomaly IDS Signature IDS

ThreatControl

Radius, DNS, DHCP

Multiple endpointsIEEE 802.1x + MAC Authentication

AccessPolicy

sFlow-based Anomaly + Signature Defense

ClosedLoop

Security

Open SourceApplications

sFlow

sFlow

Foundry IronShield Security: sFlow based security analysis Intrusion Prevention thru Snort Zero-day anomaly detection INM security policy manager

sFlow embedded in Foundryswitches and routers

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Forgotten IssuesPower Management

UPS

RPS Call Manager

Switch

MidspanPower Injector

Providing power for each phoneis costly both in labor and in the

backend power requirements

Midspan power injectors canprovide PoE, but are anotherfailure and mgmt point

These options are too costly, donot provide resiliency, and arehard to manage

Most PoE switches requireexternal power supplies toprovide redundancy in case ofpower supply failure

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Solution Integrated, Redundant,Hot-Swappable Power

Internal, redundant, hot-swappable AC and DC power

supplies eliminates need forexternal power devices andadditional managementelements

Power upgradeability can start

without PoE and easily add itwithout system impact

Support in bothstackable/chassis products

Automatic detection of legacypower and standard (802.3af)PoE devices makes IP handsetinstallation & configuration easy

Power Management designed

for converged switching

Internal, hot-swappable, load sharing power supplies(AC and DC)

Redundant PoE Powersupplies

Redundant SystemPower supplies

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Forgotten IssueEnvironmental Costs

Foundry SX1600 Other Vendor

Similar configurations-384 ports of 10/100/1000 PoE-2 ports of 10 Gig-Redundant Power-Redundant Mgmt Modules-List Price

Comparison based on data found on public web sites

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Forgotten IssueEnvironmental Costs

Approx. $60,000 savings over 5 yearsand this is just for a single switch!

Comparison based on data found on public web sitesPage 12 / 14

Environmental Factors Costs

-

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

Year1 Year2 Year3 Year4 Year5

US$

Cisco 6509

Foundry SX1600

Other Vendor



Choosing Network and IP Telephony Vendors

Do you go best-of-breed or single source?

Best-of-breed strategy provides flexibility for future network and

VoIP changes & keeps costs in check

Choosing the network and VoIP vendor separately insures youhave the best solution for your environment

Single source means higher costs

Vendor network and VoIP equipment is highly interoperable now

Foundry has reference accounts with Cisco, Nortel, Avaya, Mitel,Shoretel, Siemens, Sphere, Lucent, and others

Dont forget the Forgotten Factors (Power & Environmentals)

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Foundrys Open Voice Over IP SolutionsSupporting Industrys Best-of-Breed IP Telephony Solutions

BigIron RX BackboneBigIron RX Backbone

AvayaDevConnect

Premier

Member

MitelSolutions

Partner

NortelIPTelephonySolutions

CiscoIPTelephonySolutions

SiemensHiPathPartner

ShoretelSolutionsPartner

FastIron X424-POEFastIron SuperX

with POE

SX 800 and SX 1600With POE

FastIronGS624P/GS648P

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DISCLAIMER

Although Foundry has attempted to use accurate

information, Foundry assumes no responsibility for theaccuracy of the information or any use thereof. Theinformation is provided as is and Foundry disclaimsany warranty of any kind.


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