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The ideal solution for high end bandwidth users where connectivity is essential for operations isn't a simple T1 or DS3 dedicated line...you need an "OC" fiber optic network. So just what is OCx, what can it do for you, and what do you need to know?
What is an OCx Circuit?
'OC' stands for Optical Carrier and is used to specify the speed of fiber optic networks conforming to the SONET standard. SONET, (Synchronous Optical Networks), includes a set of signal rate multiples for transmitting digital signals on optical fiber. The base rate (OC-1) is 51.84 Mbps. Certain multiples of the base rate are provided below with bandwidth amounts. Asynchronous transfer mode (ATM) makes use of some of the Optical Carrier
levels.
Optical Carrier lines provide content providers, ASP's, ISP's & large enterprises with dedicated Internet connectivity. These Optical Carrier Level circuits are an ideal solution for high end bandwidth users where connectivity is essential for operations. Some examples are large data centers, high tech research facilities, university infrastructure, airport
complexes, and casino video security and data systems.
What is an OC3?
An OC3 can be three DS3s (T3s) or one 155M pipe. The benefit in using DS3s is that each can be separated back out as individual T1s (each with 24 channels). To put it into perspective, the speed of an OC3 connection is 155Mbps. This is equivalent to 3 T3 lines or 100 T1 lines. An OC12 connection is 622Mbps, equivalent to 14 T3 lines or approx. 414 T1 lines.
What is an OC12?
An OC12 is approximately equal to 4 OC3s and runs at 622 Mbps. which makes it an excellent point-to-point IP delivery connection. The greatest benefit to an OC-12 is that bandwidth can be added to a business as it grows without any major system overhauls. An OC12 can also allow a business to have unlimited IP addresses which insures that growth is never limited...
What is an OC48?
An OC48 works as a reliable fiber optic backbone for large networks which require volume extensive voice/data/video traffic. It is a long-haul backbone fibre connection capable of transmitting data at 2.45 Gbps. To put it into perspective the speed of an OC48 is the equivalent of having 48 T3's OR 1,344 T1 lines.
The pricing for these type of connections can vary widely depending on the carrier, location of service and the exact application for which the connection is intended to be used. Due to this complexity it is suggested to use the services of a consultant such as "DS3-Bandwidth.com" to
research available providers and find the best fit to meet a specific requirement.
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The Best Business VoIP Plans From The Top Service Providers......Easily Find And Compare Business VoIP Solution Providers By Location. Including Real Time Rate Quotes In Seconds.
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....BroadBand Nation.... Practical Tips, Insights, News, And Resources For The BroadBand Generation. Covering DSL, T1 & DS3 Bandwidth, WiFi, VoIP Technology, BroadBand Phones....And More.
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Written by: Michael Lemm - Sep 9, 2010 In general 10 Gigabit Ethernet links are deployed in parts of an enterprise or service provider network where large numbers of Gigabit Ethernet links are being aggregated. This most commonly occurs in the network core, but as gigabit-to-the desktop deployments continue to grow the need for 10 Gigabit Ethernet uplinks from the network edge will emerge. Following are some common uses or applications for 10 Gigabit Ethernet. Enterprise As all enterprise applications converge on the common Ethernet backbone, the network must be able to gracefully support a new array of bandwidth hungry applications such as storage, backups and video. To effectively deal with this onslaught of bandwidth demand, forward-thinking network architects are designing enterprise networks with 10 Gigabit Ethernet to meet current and future needs. Starting from the edge of the network, as gigabit-to-the-desktop deployments continue to grow, the need for 10 gigabit uplinks from a wiring closet switch to handle the performance demands of power users will emerge. Backbone links to entire floors or buildings may run over optical fibers at gigabit rates, while drops to desktop workstations may need to be no faster than 100 Mbps. Naturally, with this upsurge in bandwidth, demand 10 Gigabit Ethernet will be used as a high-speed interconnection between multiple buildings. These buildings could be in close proximity on a self-contained "campus", or could be many miles apart and be connected by dark fiber provided by a local service provider or municipality. Due to the limited distance of 10 Gigabit Ethernet on multimode fiber (MMF), singlemode fiber (SMF) must be deployed or leased to support 10 gigabit building interconnects. In an enterprise data center, 10 Gigabit Ethernet can be used in a variety of applications such as cluster computing, server attachment and storage interconnect. High Performance Cluster Computing (HPCC) Server clusters are a group of tens, hundreds or even thousands of relatively inexpensive (e.g. 1U Linux servers) computers (referred to as nodes) connected in parallel to cooperatively solve large, complex problems. Cluster computing has become a mainstream technological tool for research, financial modeling, digital image rendering and scientific applications. The connection between the various computers in the cluster is typically an Ethernet switch. Gigabit Ethernet Servers and NAS As servers and Network Attached Storage (NAS) devices are attached to the edge of the network at 10 gigabit speeds, the network core will have to scale proportionally by link aggregating multiple 10 Gigabit Ethernet links or eventually with 40 Gigabit Ethernet. Network architecture must take into account meeting current Gigabit Ethernet and 10 Gigabit Ethernet server connectivity needs and scale upwards as the need for greater bandwidth inevitably emerges. Storage Interconnect (iSCSI) Fibre Channel has been the protocol of choice for storage area networking, however, with the emergence of the IETF (Internet Engineering Task Force) iSCSI protocol, Fibre Channel’s dominance is being challenged by IP/Ethernet. Simply put, iSCSI is an IP-based storage networking standard that facilitates data transfers by carrying SCSI (a protocol commonly used for communication between storage devices and computers) commands over IP networks. As iSCSI continues to gain in popularity, 10 Gigabit Ethernet links are the logical choice to carry the enormous volumes of data that traverse large corporate networks. Given the extreme complex nature of designing an appropriate Gigabit Ethernet network architecture....and even deciding if it's right for your organization....it's strongly suggested that you not dump this whole animal on your IT staff. At a minimum....make use of free technical consultation for the bandwidth sourcing requirements from DS3-Bandwidth.com. |
Gigabit Ethernet Applications-Is It A Fit For Your Organization?