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Topic: SONET

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	EETimes Encyclopedia
		SONET is an intelligent system that provides advanced network management and a standard optical interface.
		The European counterpart to SONET is the Synchronous Digital Hierarchy, and the term "SONET/SDH" is widely used when referring to SONET.
		SONET can be built in a self-healing ring architecture that uses two or more transmission paths between nodes.
	www.eetimes.com /encyclopedia/defineterm.jhtml?term=Sonet&x=&y= (458 words)

	Computer Networks: ATM and SONET
		SONET is suitable for use in all of the major networking areas: long-distance networks, LANs, local loops, and cable TV.
		SONET, however, is concerned with getting the bits from one end of the line to the other, and it is very concerned with the wire type: it must run on fiber optics (its name stands for Synchronous Optical Network after all).
		SONET is synchronous in that it will multiplex according to a rigid clock schedule, sending a frame for each input line, whether actual information is on it or not.
	www.mindspring.com /~cari/networks/atm_sonet.html (941 words)

	Urban Dictionary: sonet
		SONET is the American National Standards Institute standard for synchronous data transmission on optical media.
		SONET is considered to be the foundation for the physical layer of the broadband ISDN (BISDN).
		to be sonet, is to be sexually frustrated, due to lack of, and as a result, become unable to talk sense or even type/say anything sensible or correct.
	www.urbandictionary.com /define.php?term=sonet (536 words)

	RFC 1605 (rfc1605) - SONET to Sonnet Translation
		The acronym is pronounced "owch." Mapping of the 2704 possible SONET** payloads is achieved by matching each possible payload pattern with its equivalent Cerf catalog number (see [1], which lists a vast number of sonnets in English, many of which are truly terrible but suffice for the purposes of this memo).
		The basic SONET OC-1 frame is replaced with the corresponding sonnet at the transmission end converted back from the sonnet to SONET at the receiving end.
		Thus, for example, SONET frame 12 is transmitted as: When do I count the clock that tells the time And see the brave day sunk in hideous night; When I behold the violet past prime, And sable curls,...
	www.faqs.org /rfcs/rfc1605.html (535 words)

	What is Synchronous Optical Network? - a definition from Whatis.com - see also: SONET
		SONET provides standards for a number of line rates up to the maximum line rate of 9.953 gigabits per second (Gbps).
		SONET is considered to be the foundation for the physical layer of the broadband ISDN (BISDN).
		SONET defines a base rate of 51.84 Mbps and a set of multiples of the base rate known as "Optical Carrier levels (OCx)."
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci214223,00.html (304 words)

	SONET \| Overview
		Your SONET capability from Verizon means no meet-point issues, no logistics to coordinate, exceptional reliability and automatic traffic rerouting for ultra survivability.
		SONET reduces equipment requirements, expands capacity over the same fiber and allows individual management of containers carrying user data and fault sectionalization.
		SONET not only strengthens your company's capabilities and network performance, but positions you to offer the advanced services that build your reputation and win customer loyalty.
	www22.verizon.com /wholesale/wireless/products/0,5747,24-96258-,00.html (399 words)

	SONET
		SONET establishes Optical Carrier (OC) levels from 51.8 Mbps (about the same as a T-3 line) to 2.48 Gbps.
		The basic foundation of SONET consists of groups of DS-0 signals (64Kbits/sec) that are multiplexed to create a 51.84Mbit/sec signal, which is also known as STS-1 (Synchronous Transport Signal).
		Subsequent SONET rates are created by interleaving (at the byte level) STS-1 signals to create a concatenated, or linked, signal.
	networking.ringofsaturn.com /Protocols/sonet.php (897 words)

	SONET
		SONET was developed to provide a standard method for passing high speed bit streams across fiber optic cable.
		When SONET equipment is multiplexing OC-1 signals, it uses a function called byte interleaving: the first byte of each OC-1 signal will be transferred, followed by the second byte, followed by bytes 3-810 of each frame.
		A SONET ring can be used to connect several large buildings on a campus or a city with redundant carrier switches.
	www.pmg.com /otw_nwsl/98_w_sonet.htm (1470 words)

	Through the Wires: SONET
		SONET is a standard way to interconnect traffic from multiple vendors and transport data at high optical carrier speeds (OC).
		If a SONET ring fails that serves a major hospital, police department or armed forces unit, the health, safety, and possibly national defense of the locale would be affected.
		To convert the SONET light signals to electrical signals and vice-versa, matching SONET lightwave multiplexers are required at the customer premise and at the telephone company office.
	library.thinkquest.org /27887/gather/advanced_technology/sonet.shtml (648 words)

	RFC 1619 (rfc1619) - PPP over SONET/SDH
		The Synchronous Optical Network (SONET) [3] is an octet-synchronous multiplex scheme that defines a family of standard rates and formats.
		SONET SDH equivalent STS-3c STM-1 STS-12c STM-4 STS-48c STM-16 2.
		The STM series progresses in powers of 4 (instead of 3), and employs fewer steps, which is likely to simplify multiplexing and integration.
	www.faqs.org /rfcs/rfc1619.html (851 words)

	Shedding Light On Sonet \| Page 1 \| March 20, 2000
		Sonet, or synchronous optical network, is the standard for transmitting synchronous data on optical-electrical media.
		Businesses that can't contain their entire workforce in a single building are adding Sonet rings to interconnect offices in MANs (metropolitan area networks), and packet-over-Sonet has the potential to supplant ATM in a local area network and across a wide-area network.
		Sonet signals are referenced in two ways: STS (synchronous transport signal) is the electrical portion, and OC (optical carrier level) is the optical portion.
	www.networkcomputing.com /1105/1105f1.html (794 words)

	TechFest - SONET/SDH Technical Summary
		SONET and SDH are a set of related standards for synchronous data transmission over fiber optic networks.
		SONET is the United States version of the standard published by the American National Standards Institutue (ANSI).
		The SONET Interoperability Form (SIF) was formed in 1994 to identify SONET interoperability issues.
	www.techfest.com /networking/wan/sonet.htm (790 words)

	SONET From Scratch \| Page 1 \| May 15, 2000
		SONET (synchronous optical network) is so widely used that most of us take for granted our daily reliance on it.
		Because many of SONET's advantages are unmatched by other Layer 1 protocols--such as the capability to combine data types along with voice calls over a single fiber--installing a SONET network is a smart choice for many businesses.
		SONET networks can be built in one of three fashions: linear, ring or a combination of the two.
	www.networkcomputing.com /1109/1109f2.html (1270 words)

	SONET Networks
		SONET (Synchronous Optical Network) is a standard for multiplexing data.
		SONET uses a variation of the ring and mesh topology.
		The equipment used within a SONET network is designed to create a loop to automatically repair itself.
	www.skullbox.net /sonet.php (872 words)

	AT&T - Synchronous Optical Network (SONET) - Business - CA (Site not responding. Last check: )
		SONET lets you bundle all your network connections, such as multiple DS1 and DS3 circuits and native Ethernet, on one continuous optical fiber structure and connect existing protocols to it.
		We are experts in providing SONET connectivity in metropolitan areas for organizations with data-intensive applications and currently have more than 106,000 SONET nodes and 7.7 million fiber strand miles in the AT&T network.
		SONET also offers a cost-effective way to transport large amounts of data between small and large remote offices to your company's headquarters through a SONET optical carrier network (OCN) circuit with add/drop multiplexing.
	www02.sbc.com /Products_Services/Business/ProdInfo_1/1,,1559--1-1-0,00.html (1101 words)

	SONET Definition
		SONET is an intelligent system that provides advanced network management and a standard optical interface.
		The European counterpart to SONET is the Synchronous Digital Hierarchy, and the term "SONET/SDH" is widely used when referring to SONET.
		SONET can be built in a self-healing ring architecture that uses two or more transmission paths between nodes.
	www.pcmag.com /encyclopedia_term/0,2542,t=SONET&i=51740,00.asp (783 words)

	Sonet Privacy System
		The Sonet system for speech privacy can be installed anywhere in the office, revolutionizing the acoustical treatment of open workspaces.
		Additional Sonet bases and emitters can easily be added where more speech privacy is needed, emitters can be moved to new locations to improve the privacy field, and the whole system can be quickly relocated to another space if the occupant moves.
		The Sonet is an excellent solution for cubicle type workspaces where there are no walls to contain the masking sound.
	www.officeprivacy.com /Sonet_Privacy_System_p/sonet.htm (564 words)

	Lightwave - Handheld SONET test sets tackle ATM
		While a clouded future for both SONET and ATM have been widely reported, equipment investments in these established technologies are expected to continue to grow at 20% annually well into the 2000s, according to Pioneer Consulting.
		SONET specifications GR-253-CORE and G.841 state that SONET network elements (NEs) are required to detect a network fault within 10 msec.
		By monitoring two SONET overhead bytes called K1 and K2, the test set waits for, then measures the amount of time for the network to complete a switchover, specified to be within 50 msec.
	lw.pennnet.com /Articles/Article_Display.cfm?Section=Articles&SubSection=Display&ARTICLE_ID=90023&VERSION_NUM=1 (1999 words)

	SEO Services & Web Design Company \| Southbourne Internet
		Sonet believes in working with each client to understand the needs of the business before proposing a suitable solution.
		Every member of the Sonet website design team is committed to this policy and to delivering the highest quality results at very competitive prices.
		Sonet analyzes your web site's current positions and competitors giving your company, business or organisation the jump-start and tools needed to keep ahead of the crowd.
	www.southbourne.com (494 words)

	SONET Bus. Synchronous Optical NETwork Description
		SONET uses pointers to compensate for frequency variations and phase variations.
		In the synchronous network used with SONET and SDH, all the clocks are traceable to one Stratum 1 Primary Reference Clock (PRC).
		The basic SONET frame format is the Synchronous Transport Signal [STS], with STS-1 as the base-level.
	www.interfacebus.com /Design_Connector_SONET.html (1471 words)

	What is SONET? - A Word Definition From the Webopedia Computer Dictionary (Site not responding. Last check: )
		SONET was proposed by Bellcore in the middle 1980s and is now an ANSI standard.
		SONET defines interface standards at the physical layer of the OSI seven-layer model.
		SONET establishes Optical Carrier (OC) levels from 51.8 Mbps (OC-1) to 9.95 Gbps (OC-192).
	www.webopedia.com /TERM/S/SONET.html (219 words)

	About SONET
		SONET deployments announced by some carriers are linear in design; Netstar's backbone networks are ring-based.
		SONET equipment converts electrical signals to optical signals, and interfaces with asynchronous transmission equipment to convert digital signals.
		SONET doubles the capacity across the network, from 1.7 billion bits of information through asynchronous transmission to 2.5 billion bits of information per second through synchronous transmission.
	www.netstartechnologies.net /sonet.html (491 words)

	SONET
		SONET is similar to the T-1 transmission service because it is an optical transmission service that is able to deliver many data channels from different sources.
		SONET is expandable to OC-192 or (9953.28 Mbps).
		SONET is very efficient because it allows for many types of signal formats to be carried over one line, including video, voice, and data.
	misnt.indstate.edu /harper/Sonet.htm (3024 words)

	SONET
		SONET is a complete, time-tested solution to both wide-area and metro-area networking.
		SONET defenders maintain that a move to IP over photons will result in carriers sacrificing protection and reliability.
		SONET defenders also claim that the costs of SONET is equal to that of IP-over-photons.
	home.att.net /~jemstar-jdc/SONET/develstand.html (1024 words)

	Packet Over SONET/SDH
		The remote end of a SONET path is referred to as the path-far-end.
		The remote end of a SONET line is referred to as the line-far-end.
		For error conditions such as when a fiber optic cable is unplugged from a SONET interface, large numbers of traps are generated.
	www.avici.com /documentation/HTMLDocs/02119-09_revAA/SONET.html (1720 words)

	Sonet Distribusjon
		Sonet Distribusjon og Universal Music sitter til sammen på et fantastisk nettverk når det gjelder musikere, management, innspillingsstudioer, bookingbyråer, konsertsteder, videoprodusenter, presse osv.
		Sonet har syv distribuerte artister på South By South West i Austin.
		Ti av Sonets distribuerte artister spiller på Øyafestivalen.
	www.sonet.no (3733 words)

	Privateline.com: SONET
		Like T-1, SONET is a transmission standard, one that carries other protocols to their destination.
		SONET also sports modern network features including bandwidth management, real time monitoring of the system, survivable networking, and universal connectivity.
		Nathan Muller says SONET will provide communications' transport mechanism for the next three to four decades; all modern telephone companies are building their new networks with it.
	www.privateline.com /Switching/SONET.html (783 words)

	Understanding WAN Bandwidth Delivery > SONET (Site not responding. Last check: )
		One of the main problems was that SONET was originally defined to transmit at 49.9Mbps, which works great with North American DS3s, but it does not accommodate European CEPT standards.
		In instances in which data might vary, pointers—similar in concept to pointers in the C programming language—in the SONET frame header are used to determine the exact offset of the data within the frame payload.
		SONET itself is nothing more than a fast direct method of transporting data that is costly but resistant to delays.
	www.informit.com /articles/article.asp?p=21318&seqNum=10 (968 words)

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