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Topic: Duplex link


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In the News (Mon 28 Dec 09)

  
  Link
Note 1: In all cases, the type of link, such as data link, downlink, duplex link, fiber optic link[?], line-of-sight link, point-to-point link[?], radio link and satellite link[?], should be identified.
In computer programming, link means to take separately compiled object code modules, at least one of which refers to an address in another, and substitute the actual addresses of routines in the other module for placeholders.
In knot theory a link is several knots (possibly including the unknot) which may be linked together.
www.ebroadcast.com.au /lookup/encyclopedia/li/Link.html   (270 words)

  
 Roadlink post your load, truck and freight.
To connect or unite with a link or as with a link; to join; to attach; to unite; to couple.
LINK was a project started in the late 1960s by Wharton Econometric Forecasting Associates or WEFA, (now Global Insight), to build the world's first global macroeconomic model, linking models of many of the world's countries so that the effect of changes in the economy of one country are reflected in other countries.
LINK was a 1960s project to build the world's first global macroeconomic model.
www.matchtruckloads.com /roadlink.html   (2398 words)

  
 Cisco - Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
Link is established, but switch does not see any autonegotiation information from NIC and defaults to half-duplex when operating at 10/100 Mbps.
Duplex mismatch is a situation in which the switch is operating at full-duplex and the connected device is operating at half-duplex, or the other way around.
This is an indication of overutilization of the switch port at half-duplex or duplex mismatch.
www.cisco.com /warp/public/473/46.html   (6809 words)

  
 Polling system for a duplex communications link - Patent 4251865
Channel efficiency in a communications link between a controller and multiple portable units is increased by polling the active units and a set number of inactive units in a sequence where a "poll" consists of sending the binary coded address of the portable unit.
The link 11 could be a short DC data link or a leased telephone line of almost any length with a modem at each end.
If the answer is "no" the blocks are linked together in the control unit memory and the message number and block check characters examined as before and if the answer here is "yes" or "no" the same procedures apply as before.
www.freepatentsonline.com /4251865.html   (3542 words)

  
 45.2.2 Link/Queue
Links are created between nodes to form a network topology.
Unlike link, nam queue is associated to a simplex link.
Orient or the link orientation defines the angle between the link and horizontal.
www.isi.edu /nsnam/ns/doc/node608.html   (250 words)

  
 Piano - Wikipedia, the free encyclopedia
Over stringing was invented by Jean-Henri Pape during the 1820s, and first patented for use in grand pianos in the United States by Henry Steinway Jr.
Duplex scaling: Treble strings of a 182 cm.
‘‘‘Duplexes’’’ or aliquot scales; In 1872 Theodore Steinway patented a system to control different components of string vibrations by tuning their secondary parts in octave relationships with the sounding lengths.
en.wikipedia.org /wiki/Piano   (4923 words)

  
 13.3 Full Duplex Ethernet Links   (Site not responding. Last check: 2007-10-25)
In the absence of an official standard, the rules for a full duplex link length may vary depending on the vendor in question.
Full duplex operation is quite simple compared to normal Ethernet, and devices at each end of a full duplex link can send and receive data simultaneously over the link.
The full duplex mode of operation requires that each end of the link only connects to a single device, such as a workstation or a switched hub port.
www.ethermanage.com /ethernet/100quickref/ch13qr_4.html   (394 words)

  
 Datacom Systems: FAQs about Network Taps, Matrix Switches, Link Aggregation and Networking Technology
A Link Aggregation Tap is a network tap that can receive both sides of a full duplex data transmission, combine those two independent streams of data and send the "aggregated" copy of the entire transmission to a connected monitoring device.
Extra monitor ports also allow redundant devices to be connected to the same link as a failsafe measure to prevent the loss of data in case one of the connected devices has problems or needs to be updated.
A: Yes – the output of a link aggregation tap may be connected to a matrix switch in exactly the manner as a SPAN port or shared media hub is connected.
www.datacomsystems.com /support/faqs.asp   (4000 words)

  
 nicky veitch's Weblog : Weblog
Link aggregation, Jumpstart post install script Solaris 10 introduced the nemo framework for drivers and Solaris Nevada has more projects which build on said framework.
Agrregation completes and the link is in standby mode, next we need to plumb it.
# script to setup link aggregation on nics which are not in use # it trys to ignore unsupported nics.
blogs.sun.com /roller/page/nickyv?entry=link_aggregation_jumpstart_post_install   (694 words)

  
 hard-coding full-duplex - WiFi-Forum
duplexity, the "safest" route is to assume half-duplex operation.
> duplexity, the "safest" route is to assume half-duplex operation.
> > duplexity, the "safest" route is to assume half-duplex operation.
www.wifi-forum.com /wf/showthread.php?t=2908   (2046 words)

  
 6.4 Commands at a glance
The link uses a queue type of and depending on the queue type different arguments are passed through .
This command is used to set link attributes (like orientation of the links, color, label, or queue-position) for duplex links.
is the element in the link that actually models the link in terms of delay and bandwidth characteristics of the link.
www.isi.edu /nsnam/ns/doc/node63.html   (428 words)

  
 [No title]
It is proposed that a bi-directional connection, or duplex link, be identified by a pair of socket numbers, one for each end.
Any NCP must be capable of creating a duplex link between a local user process and a remote one.
Links are deleted by removing empty crates from them and reclaiming the buffers allocated to the crates removed.
www.ietf.org /rfc/rfc0060.txt   (2753 words)

  
 FF-800 Manual, Chapter 4, section 2
Main ports should be full duplex (otherwise, it would probably be more appropriate to configure the port as a link) but there is no restriction on duplex settings for any port.
For example, given a full duplex 70cm link from a remote repeater, a user may be tempted to configure the port as a full duplex TR.
In this case, the full duplex RF link would be configured as half duplex on the FF-800 to prevent a feedback path, even though the RF hardware can support full duplex.
www.rollanet.org /~joeh/FFmanHTML/FF80042.html   (2980 words)

  
 Duplex vs. Simplex
Simplex links are built so that the transmitter (the one talking) sends a signal and it's up to the receiving device (the listener) to figure out what was sent and to correctly do what it was told.
Full duplex communication is two-way communication achieved over a physical link that has the ability to communicate in both directions simultaneously.
A duplex circuit can be created by using two separate physical connections running in half duplex mode or simplex mode.
www.inetdaemon.com /tutorials/theory/concepts/duplex_vs_simplex.shtml   (402 words)

  
 Local area network with an active star topology comprising ring controllers having ring monitor logic function - Patent ...
said input and output data links including means connected to said input buffer and to said output buffer for controlling data flow between said duplex communication link and said input buffer (34) and said output buffer (32).
The link interface (36, 37) is common to both the node and Ring Controller functions of the component.
Links are identified as belonging to the Broadcast Tree by an enabling flag.
www.freepatentsonline.com /5041963.html   (7418 words)

  
 Switches - What is Full Duplex?
Full duplex is primarily useful to extend the distance of an Ethernet where the limitation on length is due to propagation delay, not attenuation.
Full duplex removes the restriction on length due to propagation delay, since a collision cannot occur in full duplex.
Therefore, if a station on a full duplex link tries to send more traffic onto another link across a bridge or switch than that link can handle, frames will be lost.
support.intel.com /support/express/switches/sb/CS-014409.htm   (406 words)

  
 July 2002 Computing News: SysAdmins - Do You See Auto Negotiation (AN) as Convenient or Confounding?
AN uses a combination of Normal Link Pulses (NLP) which, are defined in the 10BASE-T standard, and Fast Link Pulses (FLP) to communicate the capabilities of each link partner using arbitration.
Some users mistakenly believe that if they force the configuration of one end of a link to be 100 Megabits per second, full duplex, the end with AN enabled will discover and configure itself to be the same.
The problem is that Parallel Detection will cause the AN end of the link to configure as half duplex which leads to a problem known as a duplex mismatch.
www.lbl.gov /ITSD/CIS/compnews/2002/July/09.html   (587 words)

  
 Cable Modem Troubleshooting Tips: Ethernet issues
The need for each end of the link to know the speed and duplex settings of the other end gave rise to an ethenet auto-negotiation protocol implemented in the hardware, so that each end could determine the supported features of the other, and they could agree on an optimal setting that both ends could support.
It is always safe to force one end of an ethernet link to be semi-duplex even when you are not sure what duplex setting is in effect at the other end of the link.
It is never safe to force one end of an ethernet link to be full-duplex (or allow it to autonegotiate itself to full-duplex), unless you are sure the other end of the link is also full-duplex.
homepage.ntlworld.com /robin.d.h.walker/cmtips/ethernet.html   (2140 words)

  
 Feature: LAN switches: living in an heterogeneous World, 09/25/00
To pass the test, a switch had to indicate that it passed traffic at the highest possible link speed and duplex level, and the switch pair had to forward traffic at more than the next-lower speed/duplex setting.
Link aggregation gives network managers a cost-effective way to leverage their existing network infrastructure to allow for fractional bandwidth between Fast Ethernet and Gigabit Ethernet.
There were no problems linking participating switches via a single Gigabit Ethernet uplink and passing a stream of 1,518-byte packets from one device to the next.
www.networkworld.com /research/2000/0925feat2.html   (2878 words)

  
 [vortex-bug] full-duplex problem with 3CXFE575BT ?
I suspect the problem is something to do with the duplex negiotiation (perhaps similar to the problem described in http://www.tux.org/hypermail/linux-vortex-bug/2001-Feb/0008.html).
What makes me think this is that the card reports half-duplex capability, yet when you plug in the PCMCIA card, there's a message in the syslog which says that it's enabling full-duplex mode.
You have link beat, and everything is working OK. This transceiver is capable of 100baseTx 10baseT.
www.scyld.com /pipermail/vortex-bug/2002-March/001022.html   (611 words)

  
 [No title]
For half-duplex links, or full-duplex-capable links operating in half-duplex mode, the mediaIndependentIn* objects shall be used and the mediaIndependentOut* objects shall not increment.
For full-duplex links, the mediaIndependentOut* objects shall be present and shall increment.
If the speed is unknown, the link is half-duplex, or there is no fixed maximum (e.g.
www.nudesignteam.com /RFCs/rfc3273.mib   (1339 words)

  
 ODIN S-LINK   (Site not responding. Last check: 2007-10-25)
The ODIN S-LINK interface is a standard S-LINK implementation, which uses in the full configuration two 3.3 V Hewlett Packard G-LINKs (HDMP-1032/1034) as a physical layer for the forward channel.
For the optical transmission small form-factor (SFF) optical transceivers with duplex LC connectors are used.
ODIN cards are available in a full-speed version using two duplex LC cables and a cheaper, lower-speed version that uses a single duplex LC cable.
hsi.web.cern.ch /HSI/s-link/devices/odin   (280 words)

  
 Expansion Components Installation and Configuration
Locate the desired DUPLEX switch for the port on the front of the module, and set it to the appropriate position: down for half-duplex, or up for full-duplex.
Be sure the Tx connector on the ATM module is linked to the Rx connector on the other device, and that the Rx connector on the ATM module is linked to the Tx connector on the other device.
A trunk is a physical link between two Catalyst switches, or between Catalyst switches and routers, that carries the traffic of multiple VLANs.
www.cisco.com /univercd/cc/td/doc/product/lan/cat3200/3200/agxpnmod.htm   (7160 words)

  
 Architecture Studies for High-Rate Duplex Direct Data Distribution (D4) Services
As shown in column two, a duplex link using a single-beam phased array develops an average throughput of 210 Gbits per day, whereas a dual-beam phased array can average 221 Gbits per day (column three).
The high-data-rate link would be used for returning latency-tolerant instrument data from the spacecraft.
The low-data-rate link would be used for real-time interactive commands between the principal investigator and the spacecraft and would be available all the time, instead of only when the spacecraft was in view.
www.grc.nasa.gov /WWW/RT2001/6000/6160wald.html   (630 words)

  
 Welcome to Transition Networks: The Conversion Technology Experts
Link Pass Through is a troubleshooting feature that allows the media converter to monitor both the fiber and copper RX ports for loss of signal.
A troubleshooting feature that is generally used in conjunction with Link Pass Through to notify both end devices of a loss of link.
The original fiber link (1) is put in the disabled state.
www.transition.com /TransitionNetworks/Products2/Product.aspx?ID=17929&CategoryName=CBFTF10xx-1xx   (298 words)

  
 InterOperability Laboratory: Technologies: Gigabit Ethernet: Knowledge Base
If there is a link pulse present in a data position, it is representative of a logic one, whereas the lack of a link pulse is representative of a logic zero.
Once a device is aware of its link partner's abilities, it must decide what type of link to establish.
The two link partners transmit their FLP bursts containing their link code words without the Acknowledge bit set.
www.iol.unh.edu /training/ge/1000BASE-T/ANEG_brief.php   (1308 words)

  
 Foundry Networks : Services : FAQs : What is Ethernet Auto-Negotiation?   (Site not responding. Last check: 2007-10-25)
In a full-duplex network there are no collisions and end-stations at opposite ends of a full-duplex Ethernet link may transmit simultaneously.
Auto-negotiation is a mechanism that enables devices to negotiate the SPEED and MODE (duplex or half-duplex) of an Ethernet Link.
These issues have created a situation where the new standard compliant products appear to be creating a problem, when in fact it is the older non-compliant hardware that cannot take advantage of this new valuable feature.
www.foundrynet.com /services/faqs/ethernetAutoNegotiation.html   (395 words)

  
 Documentation
Yellow — A 10-Mbps link is up and there is no activity.
Yellow — A half-duplex link is up and no collisions are occurring.
Green — A 1000-Mbps link is up and there is no activity.
support.dell.com /support/edocs/network/1j052/en/ug/3024c14.htm   (774 words)

  
 C H A P T E R 3 - Configuring Driver Parameters
If both link partners are not operating in the same mode for each of these parameters, network errors will occur.
The Sun Crypto Accelerator 4000 UTP adapter advertised link parameters are different from those of the Sun Crypto Accelerator 4000 MMF adapter as shown in TABLE 3-2.
When set to 0 this parameter enables slave operation, assuming the link partner is a master (default).
www.sun.com /products-n-solutions/hardware/docs/html/817-3693-10/3_driver_param.html   (3961 words)

  
 Duplex (2003)   (Site not responding. Last check: 2007-10-25)
And I suppose that's part of the success of "Duplex" -- like other DeVito movies, it takes a seemingly appalling plot (see "Throw Momma From the Train") and, by advancing and developing its characters, and drawing us into their conflicts, has us relate to them.
But when you're watching "Duplex," it all comes across as a joke, and it doesn't seem very cruel at all, and DeVito's ability to transform his audience into fantasizing sickos is sort of mildly genius if you stop and think about it.
I'd never kill an old woman but "Duplex" is able to make us sympathize with its characters and agree with their decision.
imdb.com /title/tt0266489   (916 words)

  
 iTap GigaBit Dual Port Aggregator | SNMP Taps - Information taps and Intelligent Tap
The iTap Port Aggregator displays the link utilization level in both directions in real time, with the size and time of the last peak, right on the front panel.
For high-load links, the iTap Port Aggregator is available with 256MB of memory.
The iTap Port Aggregator allows you to set a threshold for each side of the full-duplex link at which an alarm is triggered.
www.netoptics.com /products/product_family_details.asp?cid=7&pid=156&Section=products&menuitem=7&tag=   (885 words)

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