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Topic: Connection-oriented



  
 Transmission Control Protocol - Open Encyclopedia
While it is possible for a pair of end hosts to initiate a connection between themselves simultaneously, typically one end opens a socket and listens passively for a connection from the other.
The client-side of a connection initiates an active open by sending an initial SYN segment to the server as part of the 3-way handshake.
A 16-bit checksum, consisting of the one's complement of the one's complement sum of the contents of the TCP segment header and data, is computed by a sender, and included in a segment transmission.
http://open-encyclopedia.com/Transmission_Control_Protocol

  
 Patent 6370112: Seamless path switchover in a connection-oriented packet network
In packet switching connection oriented networks, a user digital data stream is broken into discrete units (for example of 48 bytes each).
In a connection oriented packet network such as an Asynchronous Transfer Mode (ATM), or frame relay network, a connection (e.g., an ATM Permanent Virtual Circuit) (PVC) may need be moved to a replacement path despite the fact that the existing path is operational.
In the context of moving a connection from one path (the existing path) to another path, (the replacement path) we refer to the switch at which the two paths diverge as the originating switch, and we refer to the switch at which the two paths again converge as the destination switch.
http://www.freepatentsonline.com/6370112.html

  
 Internetworking Connectionless and Connection-Oriented Networks
If connections are provisioned between routers through the CO network, these simply appear as links in the router network.
Whether a connection is set up prior to data exchange or not is a property of whether the network is CO or CL, not whether the network is packet- or circuit-switched.
If connections are only set up on demand, it stands to reason that CL datagrams may arrive at an internetworking gateway and face the situation of having to wait until a connection is set up.
http://www.comsoc.org/ci/private/1999/dec/Veerar.html

  
 Transmission Control Protocol
After the TCP connection is established but before any data is sent, the client is waiting for byte 79 and the server is waiting for byte 42.
This second segment has the sequence number 79, the initial sequence number of the server-to-client data flow of this TCP connection, as this is the very first byte of data that the server is sending.
As mentioned earlier, no buffers or variables are allocated to the connection in the network elements (routers, bridges and repeaters) between the hosts.
http://gaia.cs.umass.edu/kurose/transport/segment.html

  
 RFC 2513 (rfc2513) - Managed Objects for Controlling the Collection and St
Each connection record contains a sequence of values for each identified tuple, in the same order as the tuples are identified in the header information.
Since a file must contain an integral number of connection records, the actual maximum size of the file may be just less OR Just greater than the value of this object.
Once the record is generated, the checksum is calculated over the whole connection record (including the starting SEQUENCE OF and the trailing end-of-contents octets, if used), and then the zeros are overwritten (at the saved location) by the calculated value of the checksum.
http://www.faqs.org/rfcs/rfc2513.html

  
 Connection-Oriented Network Communications
The following procedure uses the net use command as an example to describe the signaling process in connection-oriented communication.
This is handled by the redirector when it makes a connection to the NBF drivers by using the TDI interface.
For example, if you know that the computer connects to the network on a slow link, the T1 value can be increased.
http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/intwork/inde_nbf_byno.asp?frame=true

  
 Zvon - RFC 1270 [SNMP Communications Services] - Connection Oriented vs. Connectionless
For connection oriented transports, the transport ACK does not necessarily indicate delivery of data to the destination application process (for TCP, see section 2.6 of [ 4 ]).
In the face of pathological network problems, a connection oriented transport protocol may simply cease to operate because the probability of getting all of these packets through reduces to a very small number.
(1) Keep a connection open to each managed object on the network, (2) Establish and tear down connections on a per-operation basis, or (3) Keep a fixed number of connections open and, when another connection is needed, use some algorithm (e.g., LRU) to select one for closing and opening to the new agent.
http://www.zvon.org/tmRFC/RFC1270/Output/chapter6.html

  
 World Intellectual Property Organization
The encrypted call and connection information may then be provided along with a subsequent call request message to the connection oriented network 302.
The encrypted call and connection information may then be provided along with a subsequent call request message to the source connection oriented network 502Y.
Additionally, the information may include information from all of the intermediate path segment end points in the computed path used by the call and connection.
http://www.wipo.int/ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/107689.031224&ELEMENT_SET=DECL

  
 Zvon - RFC 1932 [IP over ATM: A Framework Document] - Connection Oriented and Connectionless Tradeoffs
Table 4: Connection Oriented vs. Connectionless - c) a pure connectionless approach Work in progress is addressing how QoS requirements might be expressed and how the local decisions might be made as to whether those requirements are best and/or most cost effectively accomplished using ATM or IP capabilities.
In the past, strong advocates of pure connection oriented and pure connectionless architectures have argued intensely.
Table 2, Table 3, and Table 4 describe typical treatment of various types of traffic using a pure connection oriented approach, middle ground approach, and pure connectionless approach.
http://www.zvon.org/tmRFC/RFC1932/Output/chapter5.html

  
 Connection-oriented software downloads
EtherDetect is an easy for use and award-winning packet sniffer and network protocol analyzer, which provides a connection-oriented view for analyzing packet s more effectively.
An easy solution to check if there is an active Inter net connection.
Details of each connection are shown in a list called the connection table, including remote hostnames and IP addresses, port s used, status, age, and program.
http://www.freedownloadsoft.com/connection-oriented.html

  
 Connection-Oriented and Connectionless Services (Linktionary term)
Connection-oriented methods may be implemented in the data link layers of the protocol stack and/or in the transport layers of the protocol stack, depending on the physical connections in place and the services required by the systems that are communicating.
For example, X.25 packet-switching networks perform extensive error checking and packet acknowledgment because the services were originally implemented on poor-quality telephone connections.
It is generally believed that the underlying network should do what it does best, which is deliver data bits as quickly as possible.
http://www.linktionary.com/c/connections.html

  
 Understanding OSI - Chapter 4
If one accepts that both connection-oriented and connectionless approaches will be around for a long time, it would seem desirable for the majority of computer vendors to implement both the connection-oriented set of protocols and the connectionless set of protocols over both their X.25 interface and their Ethernet interface (for example).
In the absence of most vendors implementing both approaches, there is a real potential for the world of conforming OSI systems to divide into two non-communicating parts - those containing implementations of the connection-oriented protocols and those containing implementations of the connectionless protocols.
Equally, if it had only the connection-oriented approach, it would never have been accepted by some computer vendors, or by the Internet community, and any move from TCP/IP to standardised protocols would be even more difficult than it is now.
http://www.packetizer.com/osi/understandingosi/chapter4.html

  
 Introduction to Internet
Connection-oriented services must negotiate a connection, transfer data, and tear down the connection, whereas a connectionless transfer can simply send the data without the added overhead of creating and tearing down a connection.
The attacked computer is then left with resources allocated for many never-completed connections.
Figure 1-1 illustrates some different kinds of network technologies that can be interconnected by routers and other networking devices to create an internetwork.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/introint.htm

  
 chap07_48
A connection between two computers is a dedicated communication path, reserving all necessary resources
http://www.eg.bucknell.edu/~cs320/1998-fall/chap07_48.html

  
 Comment on "A Deterministic Approach to the End-to-end Analysis of Packet Flows in Connection Oriented Networks" - Le Boudec, Hebuterne (ResearchIndex)
J.-Y. Le Boudec and G. Hebuterne, "Comment on a deterministic approach to the end-to-end analysis of packet flows in connection oriented network," IEEE/ACMTransactions on Networking, February 2000.
Comment on "A Deterministic Approach to the End-to-end Analysis of Packet Flows in Connection Oriented Networks (1999)
Comment on "A Deterministic Approach to the End-to-end Analysis of Packet Flows in Connection Oriented Networks" - Le Boudec, Hebuterne (ResearchIndex)
http://citeseer.ist.psu.edu/533869.html

  
 Cisco Security Advisory: Crafted ICMP Messages Can Cause Denial of Service
Crafted "hard" ICMP error messages could cause an Internet host to incorrectly abort an existing connection when in reality there are no network problems.
The reason for this is that "hard" errors represent serious network problems for which there is not a possibility for recovery.
Making a distinction between the types of errors ("soft" versus "hard") that can be reported via ICMP is important because it dictates how Internet hosts will respond to them.
http://www.cisco.com/warp/public/707/cisco-sa-20050412-icmp.shtml

  
 SCCP Compliance 1993
4.1 Connection oriented functions: Connection-oriented service (protocol class 2 and 3) is not available.
2.1 Connection oriented services: Connection-oriented service (protocol class 2 and 3) is not available.
This section lists the specification of the Signaling Connection Control Part (SCCP) of the HP OpenCall SS7 software.
http://docs.hp.com/en/5990-7317/ch04s03.html

  
 Glossary
Multi-slot packets use the ACL link type and can reach the maximum data rate 721 kbit/s in one direction and 57.6 kbit/s in the other direction if no error correction is used.
Range can be up to 100m, but this too is dependent on the environment.
The RFCOMM protocol is a serial port emulation protocol.
http://www.tech.plym.ac.uk/dcee/postgrad/reference/BlueTooth/glossary.html

  
 SecurityFocus
According to the RFC793 specification, it is possible to reset an
In other cases, a user will have to repeat the action (for example, open
In order for this to occur, the 4-tuple must
http://www.securityfocus.com/archive/1/360843

  
 Siemens Communications Lexicon - connection oriented (CO)
Connection oriented refers to the data exchange between computers where the source data are confirmed by the target.
A connection needs to be established between the communicating parties.
If an error condition occurs during the transmission, the parties inform the other side of the connection.
http://networks.siemens.com/communications/lexicon/9/f004909.htm

  
 Providing Connection-Oriented Network Services to Mobile Hosts - Keeton, Mah, Seshan, Katz, Ferrari (ResearchIndex)
We present several alternative schemes for maintaining network connections used to provide multimedia service, as hosts move through a nano-cellular radio network.
This new mobile multimedia computing environment presents many challenges, due to the requirements of multimedia applications and the mobile nature of hosts.
http://citeseer.lcs.mit.edu/keeton93providing.html

  
 The TCP/IP Guide - Connection-Oriented and Connectionless Protocols
Connection-Oriented Protocols: These protocols require that a logical connection be established between two devices before transferring data.
Key Concept: A connection-oriented protocol is one where a logical connection is first established between devices prior to data being sent.
Another way in which technologies and protocols are differentiated has to do with whether or not they use connections between devices.
http://tcpipguide.com/free/t_ConnectionOrientedandConnectionlessProtocols.htm

  
 #26933: Connection Oriented and Connectionless Sockets (originally published 9/91)
Connection Oriented and Connectionless Sockets (originally published 9/91)
Choosing Connection Oriented Sockets -------- ---------- -------- ------- Connection-oriented socket applications usually transfer large amounts of data.
Connection Oriented and Connectionless Sockets ---------- -------- --- -------------- ------- This article describes connection and connectionless sockets and gives guidelines for proper use.
http://sunsolve.sun.com/search/document.do?assetkey=1-31-26933-1

  
 The TCP/IP Guide - Connection-Oriented and Connectionless Protocols
Just as a connection-oriented protocol can be implemented over an inherently connectionless protocol, the reverse is also true: a connectionless protocol can be implemented over a connection-oriented protocol at a lower level.
UDP is used by other applications that don't need connections or other features, but do need the faster performance that UDP can offer by not needing to make such connections before sending data.
TCP is used for applications that require the establishment of connections (as well as TCP’s other service features), such as FTP; it works using a set of rules, as described earlier, by which a logical connection is negotiated prior to sending data.
http://www.tcpipguide.com/free/t_ConnectionOrientedandConnectionlessProtocols-3.htm

  
 icpads,1996 International Conference on Parallel and Distributed Systems (ICPADS '96)
These features make the method adequate for general application to various connection-oriented mobile networks.
"Connection rerouting strategy applicable to various connection-oriented mobile communication networks," icpads, vol. 00,  no. ,  p.
To date, various connection rerouting methods for connection-oriented mobile network services have been proposed.
http://doi.ieeecomputersociety.org/10.1109/ICPADS.1996.517566

  
 U.S. Pregrant 20040249948 - Performing application layer transactions during the connection establishment phase of connection-oriented protocols
This invention attempts to reduce this delay by transparently executing idempotent transactions in parallel with the connection establishment phase.
Client and server side intermediate components simulate connection establishment making it appear to corresponding application layers that a connection is established.
When a client issues a network transaction like HTTP requests to a server, such requests may require a connection to be established between the client and the server over a reliable transport like TCP (if no such connection is available).
http://cxp.paterra.com/uspregrant20040249948.html

  
 Examples: Connection-oriented server designs introduction
In the example server programs, the number of incoming connections that the server allows depends on the first parameter that is passed to the server.
Instead of creating a new job each time a connection is received, the incoming connection is given to a job that is already active.
This type of design removes the need to give the incoming connection to a worker job, and saves the performance overhead that is associated with that operation.
http://www.redbooks.ibm.com/pubs/html/as400/v4r5/ic2924/info/RZAB6COSDO.HTM

  
 DEFINITION #3
There is also flow control, which ensures that neither side of the connection overwhelms the other side by sending too much data at any time.
This exchange facilitates reliable data transfer, which ensure that the data is sent without error and in the right order.
This type of service also provides congestion control, which helps prevent the internet from entering a state of gridlock.
http://jewel.morgan.edu/~lbostock/CoSc_357/Chp_01/13nete/ne5.htm

  
 EtherDetect Packet Sniffer, Protocol Analyzer
EtherDetect Packet Sniffer is an easy for use and award-winning packet sniffer and network protocol analyzer, which provides a connection-oriented view for analyzing packets more effectively.
With the handy tool, all you need to do is to set up the filter, start capturing, and view connections, packets as well as data on the fly.
EtherDetect Packet Sniffer provides you a way to know everything on data transmitted through network.
http://www.etherdetect.com

  
 node211.html
Once these are in place, the error control procedures in the VC oriented networks are being duplicated so they might as well be abandoned.
One way would be to set up a different connection every time X communicates with a client, but this would be very inefficient if the data transfers are small as the messages sent to establish and remove the connections are essentially wasted.
An application which is serious about reliability will have to provide its own error control procedures to cope with this possibility.
http://www.cs.ucl.ac.uk/staff/jon/ods/node211.html

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