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Topic: Protocol stack

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  Protocol Stack Design Pattern
Protocol stacks tend to be rigid in design and protocol layers cannot be dynamically added or removed from a protocol stack.
Handle_Transmit: This handler is invoked by the application to transmit messages using the protocol stack.
Handle_Receive: This handler is invoked by the device to pass received messages to the protocol stack.
www.eventhelix.com /RealtimeMantra/PatternCatalog/protocol_stack.htm   (1049 words)

 Bluetooth Protocol Stack
BlueStack is a Protocol stack with L2CAP, SDP, GAP and SPP.
Bluetooth Stack for Palm is a Bluetooth protocol stack on the Palm OS platform that enables programmers to easily develop Bluetooth applications for the Palm OS.
BlueCode+ is the Bluetooth Upper Layer protocol stack from Stollmann.
www.thewirelessdirectory.com /Bluetooth-Software/Bluetooth-Protocol-Stack.htm   (4545 words)

 Embedded secure TCP/IP protocol stack
The Lynx Certifiable Stack (LCS) is the first stand-alone COTS TCP/IP solution for safety-critical systems in the avionics, medical, nuclear and communications industries.
The quality of service (QoS) capabilities of the LCS are standards-based and enable effective flow control of data and deterministic operation.
LCS is a full IPv4 stack that is certifiable to level C of DO-178B.
www.lynuxworks.com /rtos/lcs.php3   (775 words)

 SS7 Telephony Tutorial - SS7 Protocol Stack
The hardware and software functions of the SS7 protocol are divided into functional abstractions called "levels".
The ISDN User Part (ISUP) defines the protocol used to set-up, manage, and release trunk circuits that carry voice and data between terminating line exchanges (e.g., between a calling party and a called party).
The SEGway™ Signaling Gateway supports MTP Level 1, 2, and 3, and SCCP layers of the SS7 Protocol Stack.
www.pt.com /tutorials/ss7/stack.html   (514 words)

 Proposal for Protocol Naming in MUX
The consequence of having a fine protocol granularity in MUX is that sessions will tend to be very short lived or there will be a very large set of sessions each running small variations of very similar protocol stacks.
Protocol initiation implies that the initiator of a new session using either a new protocol stack or an already named protocol stack.
Protocol enumerations are required in order to be able to handle situations where a protocol stack is not understood by the recipient and for debugging purposes.
www.w3.org /Protocols/MUX/Naming.html   (872 words)

 A Driver-Based Approach to Protocol Stack Design
Every time a protocol stack is created or altered, the network service module initiates a protocol stack query to determine the header, trailer, and maximum transmission unit (MTU) requirements for the entire stack.
Even the call from the application task to the protocol stack is cheaper; some things change as the system switches from user mode to kernel mode, but this is not a full context switch.
Protocol stacks are generally optimized to do as little processing as possible during data transmission and reception.
www.embedded.com /1999/9909/9909ia2.htm   (2997 words)

 protocol stack Definition: TechEncyclopedia from TechWeb
The set of protocols used in a communications network.
A protocol stack is a prescribed hierarchy of software layers, starting from the application layer at the top (the source of the data being sent) to the data link layer at the bottom (transmitting the bits on the wire).
The stack resides in each client and server, and the layered approach lets different protocols be swapped in and out to accommodate different network architectures.
www.techweb.com /encyclopedia/defineterm?term=protocol+stack&x=14&y=8   (347 words)

 Protocol Stacks - Communications Protocol Software products from Aricent, India
Each of the protocol stacks has a well-defined road map and is continually updated to keep pace with the changing technology.
All the protocol stacks are scalable, flexible and are fully standards compliant.
The individual protocol stacks and solutions grouped by market segments where they can be deployed are also available for your reference.
www.futsoft.com /protocol_stacks.htm   (318 words)

 Protocol Stack: QSIG/PSS1 Source Code: TeleSoft International, Inc.
TsLink3 signaling protocol source code is architected for applications, both embedded and host-based, in which performance and code size are important.
The TsLink3 Universal API coupled with the straightforward structure of the TsLink3 protocol stack enables you to easily follow the API message flow through the code to determine where to make modifications required for your application.
UAPI is common across all TeleSoft stacks which decreases the time and effort required to add upgrade modules to an existing TsLink3 stack and to develop with additional TeleSoft stacks.
www.telesoft-intl.com /sourcecode_QSIG.html   (1069 words)

 The Protocol Stack   (Site not responding. Last check: )
The latter is a protocol stack containing a number of protocol layers in a bidirectional list.
However, when an application wishes to ignore the default properties for a protocol stack, and configure their own stack, then knowledge about what the individual layers are supposed to do is needed.
Although it is syntactically possible to stack any layer on top of each other (they all have the same interface), this wouldn't make sense semantically in most cases.
www.jgroups.org /javagroupsnew/docs/newuser/node5.html   (226 words)

 Aricent GPRS and UMTS Protocol Stacks
Aricent stack solutions include leading edge GPRS (General Packet Radio Service) and UMTS (Universal Mobile Telephone System) protocol stacks providing the type of data capabilities planned for "third generation" mobile voice and data networks.
The Aricent integrated stack offering for the IuPS interface is defined by Third Generation Partnership Project (3GPP) for interconnection between the SGSN and the RNC network nodes in UMTS/3G networks for carrying packet data.
The BSSAP+ protocol stack is responsible for conducting non-GPRS procedures over the Gs interface, between the SGSN and the VLR.
www.hssworld.com /protocolstacks/mobile_stacks.htm   (447 words)

 The DECT pages: The DECT protocol stack
The DECT protocol stack is based on the lower three layers of the OSI model.
The exception to this is the Medium Access Control (MAC) layer, which handles the specifics of the ether and covers part of layer 1 and 2 of the OSI model.
The DECT protocol stack presents a C(ontrol)-plane and a U(ser)-plane interface onto the stack.
www.xs4all.nl /~skydiver/DECT/details/stack.html   (455 words)

 OSI Protocol Stack Description; Open System Interconnection Stack
Protocol Data Unit [PDU] is called a Segment at this layer.
Protocol Data Unit [PDU] is called a Packet at this layer.
Protocol Data Unit [PDU] is called a Bit at this layer.
www.interfacebus.com /Design_OSI_Stack.html   (723 words)

 secure UDP
The goal of this paper is the development of a UDP encryption protocol to be used for multimedia streaming on the web.
Therefore, Application layer protocols are easier to develop and deploy as they are not as closely tied to hardware or operating system internals as the Data Transport layer protocols.
The IPSEC protocol operates at the network layer and ensures the confidentiality of all the data sent from the upper layer to all machines in the network.
plg.uwaterloo.ca /~aeehassa/home/papers/crypto/secureUDP.htm   (2581 words)

 GPRS Protocol Stack white paper
GPRS Protocol Stack will allow network operators to implement an IP-based core architecture for data applications, which will continue to be used and expanded upon for 3G services for integrated voice and data applications.
Because the GPRS Protocol Stack network infrastructure does not know the location of the MS, it is not possible to send messages to the MS from external data networks.
With GPRS Protocol Stack, a photograph of the customer and their premises could, for example, be sent to the field representative to assist in finding and identifying the customer.
www.vocal.com /data_sheets/gprs_protocol_stack5.html   (3693 words)

 The Web Services Protocol Stack
There is no standard definition of the Web Services Protocol stack though the W3C Web Services Architecture Working Group did publish a Web Services Architecture document which provides an excellent context for the various protocols.
Though the proposal of various Web Services protocols has been a fast moving area, their transition into actual open standards is inevitably much slower.
Web service protocols summary table indicates the current status of the various protocols in the standards process.
roadmap.cbdiforum.com /reports/protocols   (1447 words)

 WAP - Wirelss Communication Protocol Directory - WTLS | WTP | WSP
The WAP stack is an entity of protocols which cover the wireless data transfer.
Four record protocol clients are described in the WTLS standard; the change cipher spec protocol, the handshake protocol, the alert protocol and the application data protocol.
The protocols in the WSP family are optimized for low-bandwidth bearer networks with relatively long latency.
www.protocols.com /pbook/wap.htm   (1794 words)

 PRESS RELEASE Comneon Commences High Volume Shipments of Its Open License 3G Protocol Stack: Represent the World's ...   (Site not responding. Last check: )
Comneon's protocol stacks have already been ported to nine different chip and system platform solutions of some of the most well-known and established brands in mobile communications as well as new market entrants.
Much of the software complexity derives from the protocol stack which is used to manage the flow of data on a communications channel according to a particular protocol.
For example, protocol stacks are used to manage mobility, call handling, as well as base station and radio network communication to the mobile phone including cell reselection and the hand over between 2G and 3G networks.
www.marketwire.com /mw/release_html_b1?release_id=161463&tsource=3&hitscounted=N   (719 words)

 Protocol Stack
The GPRS protocol stack is depicted in Figures 1 and 2.
Nevertheless, our analysis of the GPRS protocol stack is from a different point of view, hence not all the units in the figure above are in the scope this analysis.
Below GTP (in the protocol stack), the standard protocols TCP or UDP are employed to transport the GTP packets within the backbone network.
www2.rad.com /networks/2003/gprs/arch_ps.htm   (960 words)

 Company Directory
Compact Flash Cards, Headsets, Protocol Stack, USB Dongles
Design Solutions, Development Kits, Protocol Stack, Semiconductor Single Chip Solutions
Development Kits, Modules, Protocol Stack, Semiconductors - Baseband
www.thewirelessdirectory.com /Companydirectory.htm   (404 words)

 What is protocol stack? - A Word Definition From the Webopedia Computer Dictionary
The OSI Reference Model that defines seven protocol layers is often called a stack, as is the set of TCP/IP protocols that define communication over the internet.
So, for example, programmers sometimes talk about loading a stack, which means to load the software required to use a specific set of protocols.
Another common phrase is binding a stack, which refers to linking a set of network protocols to a network interface card (NIC).
www.webopedia.com /TERM/P/protocol_stack.html   (525 words)

 ISO Protocols - ACSE | CCITT X.400 | CLNP | CMIP | ES-IS | FTAM | IDRP | INAP | IS-IS | ISO-IP | ISO-PP | ISO-SP | ...
The operation of this protocol is specified with respect to an “underlying subnetwork service which is made available through the operation of other Network layer protocols or through provision of the Data Link service.
This protocol is positioned with respect to other related standards by the layered structure defined in ISO 7498, and by the Network layer organization defined in ISO 8648.
The basic interaction involved is the invocation of an operation by one object (the invoker), its performance by another (the performer), possibly followed by a report of the outcome of the operation being returned to the invoker.
www.protocols.com /pbook/iso.htm   (2533 words)

 Optimize your protocol-stack design - 9/16/2004 - EDN   (Site not responding. Last check: )
Definitions of other protocols specify individual or groups of layers, which may combine to meet the target application, such as with Sigtran (signaling transport).
A single protocol layer may have to serve multiple users accessing either multiple lower layer services or multiple instances of a single service (Figure 1).
Most protocol layers are "event-driven." They maintain a known state until an event occurs that causes some action—often referred to as the "side effect"—and that could result in a new state.
www.edn.com /article/CA450595.html   (2018 words)

 Rapid Protocol Stack Development Framework
Increasingly, protocol stack development is subjected to constant requirements changes arising from evolving technical standards, changing customer needs and diverse deployment scenarios coupled with resource constraints.
IP Protocol stacks market is highly competitive, cost and schedule sensitive and is highly vulnerable to the highly volatile telecom market and rapidly evolving technology standards.
In most of the protocol stacks, timer functionality is needed for periodic or onetime callback for state updates or keeping the sessions live etc. The Timer library provides coarse grained piggybacked sub-millisecond timers for efficient utilization of CPU resources at high load levels.
www.us.design-reuse.com /articles/article9979.html   (1830 words)

 EETimes Encyclopedia
The set of protocols used in a communications network.
A protocol stack is a prescribed hierarchy of software layers, starting from the application layer at the top (the source of the data being sent) to the data link layer at the bottom (transmitting the bits on the wire).
The stack resides in each client and server, and the layered approach lets different protocols be swapped in and out to accommodate different network architectures.
www.eetimes.com /encyclopedia/defineterm.jhtml?term=protocolstack   (418 words)

 Architectural Overview of Intel's Bluetooth* Software Stack
The Bluetooth USB minidriver on the operating systems' USB stack is responsible for abstracting the HCI transport specifics and presenting the data, events, and commands to the HCI driver in a transport-independent manner.
An IRP-based [6] interface is defined under the HCI driver for this purpose, and all HCI transport drivers use this interface to talk to the HCI driver.
RFCOMM is implemented as several drivers that together implement the RFCOMM protocol, comm port emulation functionality, and the interfaces to either VCOMM or serial.sys, depending on the OS.
developer.intel.com /technology/itj/q22000/articles/art_2d.htm   (1064 words)

 SIGTRAN: Signaling Transport Protocol Stack
For each, the SS7 stack is substituted at one of its well-defined layers with a packet transport replacement.
By moving up to higher layers higher in the stack, more of the legacy SS7 concepts can be eliminated and replaced with flexible packet and IP protocol routing capabilities.
SIGTRAN protocols are defined by the IETF – SIGTRAN committee.
www.networkdictionary.com /protocols/SIGTRAN.php   (524 words)

 Topic:Protocol Stack - ITtoolbox Wiki   (Site not responding. Last check: )
A protocol stack refers to the implementation of a networking protocol suite (a set of related network communication protocols) in which each layer in a stack of protocols communicate with one another.
A related expression “loading a stack” means to load the software required to use a specific set of protocols.The implementation of the OSI Reference Model for the network communication, the TCP/IP protocols for the communication over the internet, etc. are some of the important examples of protocol stack.
A "stack" also refers to the actual software that processes the protocols, consisting of a number of layers which handle matters such as the radio link, the radio link set up, multiplexing, QoS, security and cable emulation.
wiki.ittoolbox.com /index.php/Topic:Protocol_Stack   (396 words)

 DSL Protocol Stack
We will review ideal speed, actual speed (without retransmission), speed in case of 10% retransmission of data, architecture, protocol stack description, availability and security of these services as we consider these to be the principle criteria by which users choose between them.
The FTP protocol originated as a simple procedure where a user would use Telnet to establish a link from one computer to another, start a file send or receive program on the remote system, then start the complementary receive or send program on the local system.
The protocol evolved to mask the differences between various types of systems on a network so that the user was always presented with a familiar set of commands and responses, no matter what type of system was at the local or remote end of the link.
www.cs.ndsu.nodak.edu /~mrehman/mp/final/dslprotocol.html   (5674 words)

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