INTERNET ACCESS SERVICES                                                Note that the cost of a T1 DIA service with 2 T1 c...
Ethernet Dedicated Internet Access                                            The Ethernet DIA service demarcation device ...
Unlike a T1-based DIA service, Ethernet DIA servicebandwidth can be added simply and quickly by yourEthernet DIA service p...
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Ethernet Vs. T1s For Internet Access


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Organizations increasingly utilize the Internet as a critical
business tool and Ethernet-based services provide
many benefits over T1-based services. The most
obvious benefit is higher bandwidth. In addition, Ethernet
services enable organizations to more quickly
and cost-effectively add Internet access bandwidth to
balance their business needs. This elastic bandwidth
capability of Ethernet services enables organizations
to optimally manage their IT costs while they grow their businesses

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Transcript of "Ethernet Vs. T1s For Internet Access"

  1. 1. ETHERNET VS. T1sFOR INTERNET ACCESSA MORE COST EFFECTIVE AND FLEXIBLE ALTERNATIVEINTRODUCTION representing a 27.4% compound annual growth rate. This rapid growth rate is over five times the projected growthThe Internet is an integral part of doing business – from rate for traditional IT products (5%).sending emails to hosting a web site to setting up IPVPNs to interconnect locations. Today, more than ever, Usually, this requires a costlier, higher speed Internetorganizations require reliable Internet connectivity with connection. However, the CapEx and recurring OpExincreasingly higher speeds to satisfy growing application savings of cloud-based services typically provide arequirements. They must accomplish all of this while better return on investment than the additional Internetcarefully managing their IT costs. bandwidth costs. During times of accelerated growth, organizations can leverage the Internet to rapidly respondInternet usage continues to grow and evolve significantly to the need to quickly increase productivity and supplyfrom its simpler web browsing and email origins. chain while carefully managing costs.Organizations large and small now extensively rely onthe Internet as a critical component of their businessoperations. They use the Internet to increase productivity, Organizations require operationalprovide Business-to-Business (B2B) or Business- agility to quickly adjust to changingto-Consumer (B2C) services, streamline their supply business demandschain, and outsource IT applications to reduce costs.Internet bandwidth requirements continually increase asorganizations adopt new, innovative ways to leverage theInternet utilizing Web 2.0 Internet-based applications. A popular way for organizations to connect to the Internet has been via a T1-based dedicated InternetThe adoption of new technology can help drive costs out access (DIA) service. T1 DIA services are typicallyof business operations as well as serve as a path to new offered over 1 or 2 T1 circuits so the bandwidth optionsrevenue generation. For example, by moving applications are limited, inflexible and costly as an organization’sto hosted or “cloud-based” services, an organization bandwidth and application requirements grow. To becan eliminate the capital expense of the application competitive, you need to quickly and cost-effectivelyservers and operational expense of software licenses and adapt your Internet access bandwidth. T1 DIA servicessupport while reducing the burden on their IT support are challenged to meet these elastic bandwidthstaff. requirements.According to IDC’s recent report “Worldwide and There is, however, an alternative cost effective andRegional Public IT Cloud Services 2010–2014 Forecast” more flexible option to connect to the Internet using anspending on public IT cloud offerings exceeded Ethernet dedicated Internet access service.$16B in 2009 and is forecast to reach $55.5B in 2014ETHERNET VS. T1s FOR INTERNET ACCESS 1
  2. 2. INTERNET ACCESS SERVICES Note that the cost of a T1 DIA service with 2 T1 circuits can have up to twice the MRC of a T1 DIA serviceTo contrast and compare the different approaches to with 1 T1 circuit. This cost is associated with theInternet access services, one must first understand what leasing of an additional T1 circuit from the incumbenteach service provides. Below is a review of the different telecommunications service, how they are designed and delivered, and howto increase Internet access bandwidth with each option. Item Billed CapEx OpEx Initial T1 DIA service installationT1 Dedicated Internet Access Setup Cost T1 Router $XT1 DIA service is delivered over either a single T1 1.5 Mbps MRC - $Y/monthcircuit (to achieve 1.5Mbps) or two bonded T1 circuits Adding additional (T1) bandwidth(to achieve 3Mbps of bandwidth). The service requires Setup Cost New 2xT1 Router1 $Za router with one or two T1 WAN interfaces which istypically part of the initial service setup cost. This T1 3 Mbps MRC - ~2 x $Y/monthWAN router typically provides a 10/100Mbps Ethernetport to connect to your router or an available Ethernet Figure 2: CapEx and OpEx for DIA serviceport on your Ethernet LAN switch. Many T1 DIA service providers cannot provide Internet access beyond 2 T1s. If your Internet access bandwidth End DIA needs increase beyond 3 Mbps, you will have to switch User’s Service 1 or 2 your service to a different technology that offers higher Router Router T1s bandwidth choices for Internet access. An organization’s LAN Internet bandwidth requirements may increase for many Internet different reasons, including: 10Mbps Ethernet • Increasing number of visitors to your locally hosted public web site for eCommerce transactions • Increasing use of cloud-based services where you Figure 1: T1 DIA Service Configuration move applications from running locally to running from a remote data center or hosted server in theThe monthly recurring cost (MRC) for the service will clouddepend on whether you purchased the service using 1or 2 T1 circuits. Refer to Figure 2 for a cost breakdownof a T1 DIA service. Upgrading a T1 DIA service to a higherIn order to keep entry costs low and eliminate bandwidth may take days or even weeksinteroperability issues, the service provider will include arouter supporting a single T1 circuit when you purchasea T1 DIA service with a single T1. If you need morebandwidth, you need to purchase an upgraded service Upgrading to a higher bandwidth may require anwhich may require you to purchase a new T1 router to additional T1 or a higher speed circuit such as a T3. Thissupport the bonding of the two T1 circuits. Typically, will result in a service disruption if you must replace thethere will be another setup cost as well as a higher MRC existing T1 DIA customer premises equipment to supportfor the additional bandwidth. With a T1 DIA service you the higher bandwidth connection. If new equipment orpurchase bandwidth in T1 (1.5Mbps) increments. circuits are required, it may take days or even weeks to upgrade your Internet connection.Required if existing router cannot support additional T1s.1ETHERNET VS. T1s FOR INTERNET ACCESS 2
  3. 3. Ethernet Dedicated Internet Access The Ethernet DIA service demarcation device is included in the initial service setup cost and hence no capitalEthernet DIA services are typically delivered over a expense is required to connect to the service if you cansingle Ethernet fiber optic connection to achieve any use an available Ethernet port on your router. Ethernetamount of bandwidth between 1Mbps and 10Gbps. The DIA services are typically delivered via a fiber opticservice typically provides either a 10/100Mbps, 1Gbps connection. If your building does not have a fiber opticor 10Gbps Ethernet port from an Ethernet DIA Service connection, your Ethernet DIA service provider willDemarcation Device used to attach your router. deliver a fiber optic connection to your building. There will be a one-time cost associated with the installation of the fiber optic connection2. There is also an monthly Ethernet recurring charge based on the amount of bandwidth DIA Service End Demarcation your organization requires. Refer to Figure 5 for a cost User’s Device breakdown of an Ethernet DIA service. Router LAN Ethernet Internet Ethernet Item Billed CapEx OpEx Initial Ethernet DIA Service Installation Service $A Setup Cost Demarcation Device Figure 3: Ethernet DIA Service Configuration Fiber to premise2 $B MRC for Nx1 Mbps or $C/month orThe Ethernet port speed you select will depend upon Nx10 Mbps or - $D/month oryour initial bandwidth requirements and your anticipated Nx100 Mbps or $E/month or Nx1000 Mbps $F/monthincremental bandwidth needs for the duration of theservice agreement. A 10/100Mbps Ethernet port speed Adding additional bandwidthis sufficient for most organizations. Note that unlike T1- Setup Cost None3 $03based DIA services that operate at 1.5Mbps (the speed Billed in 1, 10, MRC for Additionalof a T1 circuit), Ethernet DIA services are not offered - 100 or 1000 Mbps Bandwidthbased on the circuit speed. An Ethernet DIA service incrementscan be purchased in bandwidth increments up to theEthernet port speed. Bandwidth increments are also Figure 5: CapEx and OpEx for Ethernet DIA Servicerelated to the port speed. Refer to Figure 4. An Ethernet DIA service enables you to better manage Ethernet DIA Service your IT CapEx and OpEx during varying economic Port Speed Bandwith Increments cycles. Cost savings can be achieved using Ethernet DIA because unlike T1-based DIA services, you don’t have to 10 Mbps 1 Mbps switch Internet access technologies or providers when 100 Mbps 10 Mbps your organizations’ bandwidth needs exceed 3 Mbps 1Gbps 1000 Mbps (2 T1s). Additional cost savings can be achieved by 10 Gbps 1 Gbps migrating select in-house IT applications to cloud-based implementations. Figure 4: Ethernet DIA Service Bandwidth increments by Port Speed Upgrading Ethernet DIA services to a higher bandwidth can be accomplished with minimal service disruptionRequired if there is no fiber access to your building2If there is an unused Ethernet port on your router3ETHERNET VS. T1s FOR INTERNET ACCESS 3
  4. 4. Unlike a T1-based DIA service, Ethernet DIA servicebandwidth can be added simply and quickly by yourEthernet DIA service provider who can remotelyreconfigure the Ethernet service demarcation device tosupport the new Ethernet DIA bandwidth you require. Youcan continue to use the service up until the bandwidthupgrade. If the Ethernet service demarcation deviceneeds to be restarted after the bandwidth upgrade, youmay experience a minimal service disruption. If not, yourbandwidth upgrade may be accomplished transparentlyto you. Contrast this to a T1 DIA service where newequipment and new, higher speed circuits are requiredwhich may take days or even weeks to get implemented.SUMMARYOrganizations increasingly utilize the Internet as a criticalbusiness tool and Ethernet-based DIA services providemany benefits over T1-based DIA services. The mostobvious benefit is higher bandwidth. In addition, EthernetDIA services enable organizations to more quicklyand cost-effectively add Internet access bandwidth tobalance their business needs. This elastic bandwidthcapability of Ethernet DIA services enables organizationsto optimally manage their IT costs while they grow theirbusiness.ABOUT COMCAST ETHERNETDEDICATED INTERNET SERVICEComcast offers an Ethernet Dedicated Internet accessservice that provides that provides reliable, simpler, moreflexible and higher bandwidth options than T1, T3 orSONET-based dedicated Internet access services. Theservice is offered with a 10Mbps, 100Mbps, 1Gbps, or10Gbps Ethernet port in customer-selectable bandwidthincrements ranging from 1Mbps to 1Gbps. For moreinformation or to request a consultation about Comcast’sEthernet Dedicated Internet service, please© Copyright 2010 Comcast Business Services. All Rights Reserved.ETHERNET VS. T1s FOR INTERNET ACCESS 4