OSI TRANSPORT LAYER CISCO PPT

4KZ]UXQOTML[TJGSKTZGRY• TP1 (transfer protocol class 1) It assumes a type B subnet; that is, one that may be unreliable. To deal with this, TP1 provides its own error detection, along with facilities for getting the sender to retransmit any erroneous packets • TP2 (transfer protocol class 2)[r]

Hindawi Publishing CorporationEURASIP Journal on Wireless Communications and NetworkingVolume 2010, Article ID 502549, 12 pagesdoi:10.1155/2010/502549Research ArticleOMNeT++-Based Cross-Layer Simulator forContent Transmission over Wireless Ad Hoc NetworksR. Massin, C. Lamy-Bergot, C. J. Le Ma[r]

Provides reliable delivery ensuring that all of the data arrives at the destination. Uses acknowledged delivery and other processes to ensure deliveryMakes larger demands on the network – more overheadUser Datagram Protocol (UDP)Provides just the basic functions for delivery – no reliabilityLess[r]

col stack.1102.book Page 501 Tuesday, May 20, 2003 2:53 PM502 Chapter 9: TCP/IP Transport and Application LayerTelnet A standard terminal emulation protocol in the TCP/IP protocol stack. Telnet is used for remote terminal connection, enabling users to log in to remote systems and use resource[r]

If you spend much time in the com-pany of network technicians youwill eventually hear them saysomething like “That’s Layer 2 only”or “That’s our new Layer 4 switch”.The technicians are referring to the OSI(Open System Interconnection) Refer-ence Model.This model defines seven La[r]

Networking BasicsNetworking BasicsTCP/IP TRANSPORTTCP/IP TRANSPORTandandAPPLICATION LAYERAPPLICATION LAYERVersion 3.0Cisco Regional Networking AcademyObjectivesObjectives•Describe the functions of the TCP/IP transport layer. •Describe flow control. •Describe the processes of es[r]

ACK.application A program that performs a function directly for a user. FTP and Telnet clients are examples of network applications.application layer Layer 7 of the OSI reference model. This layer provides services to application processes (such as e-mail, file transfer, a[r]

When trying to grasp a new theoretical concept, it often helps to form a picture of that con-cept in your mind. In the field of chemistry, for example, even though you can’t see awater molecule, you can represent it with a simple drawing of two hydrogen atoms and oneoxygen atom. Similarly, in the fi[r]

If the packet is destined for an allowed port, the packet is sent 4. through the firewall, over the physical media, and up through the layers of the OSI model to the destination address and port.Application Layer FirewallsThe second firewall technology is called application filtering or a[r]

Introduction to TCP/IP 379The transport layer data stream is a logical connection between a network’s endpoints. Using UDP, the transport layer’s primary duty is to transport data from source to desti-nation. End-to-end control, provided by sliding windows and reli[r]

buffer overflows have been found in just about every major program and are used fre-quently by those seeking unauthorized access to systems.How do you protect yourself from buffer overflows? Well, unless you feel like debug-ging every piece of software you have (which assumes you have access to the[r]

nodes. Typical UTRAN protocols that deal with user-specific data (or data streams) includethe Medium Access Control (MAC) protocol and Radio Link Control (RLC) protocol. Asillustrated in Figure 3.10, both Signalling Transport(s) and Data Transport(s) are defined inthe Transport Ne[r]

depend on the network architecture being used. Most networks use digital signaling, and most use some form of Manchester encoding for the signal  /TZKXUVKXGHOROZ_GTJOTZKXTKZ]UXQOTMInteroperability is the ability for users of a network to transfer information between different communications[r]

Web security:SSL and TLS2What are SSL and TLS?SSL – Secure Socket LayerTLS – Transport Layer Securityboth provide a secure transport connection between applications (e.g., a web server and a browser)SSL was developed by NetscapeSSL version 3.0 has been implemented in[r]

only before forwarding the frame to the destination segment. A store-and-forward switch, on the other hand, accepts and analyzes the entire packet before forwarding it to its destination. It takes more time to examine the entire packet, but it allows the switch to catch certain packet errors and kee[r]

PAT Port Address Translation: This process allows a single IP address to represent multiple resources by altering the source TCP or UDP port number.Copyright ©2001 SYBEX , Inc., Alameda, CAwww.sybex.comGlossary 491payload compression Reduces the number of bytes required to accu-rately represent the[r]

2.3.3 TRUY N D LI U TRONG MÔ HÌNH OSI Data Application Application Data HA Data Presentation Presentation HA Data HP HAData Session Session HP HAData HS HP HAData Transport Transport HS [r]

10 TRANG 11 THE OSI MODEL  Open Systems Interconnection OSI Model: divides network communications into seven layers:  Physical, Data Link, Network, Transport, Session, Presentation, an[r]