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Topic: AppleTalk Transport Protocol


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In the News (Thu 3 Dec 09)

  
  Encyclopedia: AppleTalk   (Site not responding. Last check: 2007-11-03)
AppleTalk is now considered clunky and often called 'chatty', notably on larger networks and WANs where the naming services generated considerable unwanted traffic.
This was a comparatively late addition to the AppleTalk protocol suite, done when it became clear that a TCP-style reliable connection-oriented transport was needed.
ATP was the original reliable session-level protocol for AppleTalk, built on top of DDP.
www.nationmaster.com /encyclopedia/AppleTalk   (2891 words)

  
 Transport layer - Wikipedia, the free encyclopedia
In computing and telecommunications, the transport layer is layer four of the seven layer OSI model.
(The datagram-type transport, User Datagram Protocol (UDP), provides neither error recovery, nor flow control, leaving these to the application.) The purpose of the Transport layer is to provide transparent transfer of data between end users, thus relieving the upper layers from any concern with providing reliable and cost-effective data transfer.
The Transport layer uses this simplest set of options to implement whatever combinations of options are actually desired.
en.wikipedia.org /wiki/Transport_layer   (717 words)

  
 Apple Talk
AppleTalk, a protocol suite developed by Apple Computer in the early 1980s, was developed in conjunction with the Macintosh computer.
AppleTalk Phase 1, which is the first AppleTalk specification, was developed in the early 1980s strictly for use in local workgroups.
AppleTalk utilizes addresses to identify and locate devices on a network in a manner similar to the process utilized by such common protocols as TCP/IP and IPX.
www.cisco.com /univercd/cc/td/doc/cisintwk/ito_doc/applet.htm   (6059 words)

  
 AppleTalk (Linktionary term)
AppleTalk is the architecture that defines a set of protocols used by devices to communicate over the network.
The main purpose of protocols in the session layer is to establish and maintain communication sessions between two nodes.
AppleTalk routes in an internetwork are selected based on the least number of hops a packet must make to reach its destination.
www.linktionary.com /a/appletalk.html   (1800 words)

  
 Novell Documentation: ZENworks for Servers 2 - AppleTalk Protocol Suite
An AppleTalk protocol that reconciles addressing differences between a data link protocol and the rest of a protocol family.
ATP binds the request and response together to ensure the reliable exchange of request-response pairs.
This AppleTalk protocol establishes and maintains the routing information that is required by internetwork routers to route datagrams from any source socket to any destination socket in the internetwork.
www.novell.com /documentation/zfs2/zfsadmin/data/a6shjaf.html   (869 words)

  
 Routing Protocols Reference Guide ch9-apl.html   (Site not responding. Last check: 2007-11-03)
AppleTalk automatically assigns node numbers or when a user-defined address is in use, it randomly selects an initial value.
AppleTalk is a generic term that encompasses a large group of protocols.
Figure 9–2 illustrates the AppleTalk protocols that correspond to particular OSI protocol layers.
library.n0i.net /networking/protocols/ro-routing-refg/ch9-apl.html   (3230 words)

  
 Troubleshooting AppleTalk
ATP is capable of most important transport-layer functions, including data acknowledgment and retransmission, packet sequencing, and fragmentation and reassembly.
Before changing the configuration, use the show appletalk neighbors exec command to determine on which routers you should disable AppleTalk routing.You should disable AppleTalk on all routers that are on the same network segment and that have sent RTMP updates in the past 10 seconds.
Enable the appletalk name-lookup-interval global configuration command and use the show appletalk neighbors exec command to determine which specific neighbor (by NBP name) is in compatibility mode.
www.cisco.com /univercd/cc/td/doc/cisintwk/itg_v1/tr1909.htm   (12276 words)

  
 Glossary   (Site not responding. Last check: 2007-11-03)
AppleTalk transport-level protocol that translates a character string name into the DDP address of the corresponding socket client.
NBP enables AppleTalk protocols to understand user-defined zones and device names by providing and maintaining translation tables that map names to their corresponding socket addresses.
These protocols are part of a larger architecture that Sun refers to as ONC.
www.hifn.com /support/Glossary_N.html   (603 words)

  
 Apple Networks   (Site not responding. Last check: 2007-11-03)
The Network ID is an eight bit number for AppleTalk Phase 1 and a sixteen bit number for AppleTalk Phase 2 which results in respectively 254 and 65534 possible networks.
ATP is a protocol that exchanges commands between socket clients.
DDP is a connectionless protocol that is responsible for the transfer of datagrams between sockets.
home.tiscali.nl /~bvabinet/Alex/Netwerk/applenet.html   (1255 words)

  
 Upgrading and Repairing Networks -- Ch 15 -- Routers   (Site not responding. Last check: 2007-11-03)
On top of everything else that the transport layer must deal with, it is at once concierge, traffic cop, and native guide of and between networks.
If that counter reaches the maximum allowed value for the protocol in use, a problem with the path or the message itself is assumed, further efforts to deliver the packet are dropped, and the packet itself is discarded.
As important as the protocols it translates and the ways in which it decides upon routes is a router's ability to prioritize tasks.
www.sheetudeep.com /res/net/ch15/ch15.htm   (7184 words)

  
 Defining Network Protocols: Chapter 6   (Site not responding. Last check: 2007-11-03)
Different protocols accomplish their function differently, so if different computers use different protocols at the same layer, they will not be able to communicate.
Transport protocols facilitate communication sessions between computers and ensure that data is able to move reliably between computers.
A connectionless protocol used to send small amounts of data for which guaranteed delivery is not required.
www.sjdccd.cc.ca.us /emp/acofod/networking/Chapter06Protocols.htm   (1525 words)

  
 Networking Essentials Notes -- Section 2   (Site not responding. Last check: 2007-11-03)
Responsible for protocol conversion, data translation, data encryption, data compression, character conversion, and graphics expansion.
Transport layer breaks the data into packets and adds sequencing information needed to reassemble data at the other end => the structure of the packets is defined by the common protocol being used between the two computers.
These protocols provide communication sessions between computers and ensure data is moved reliably between computers.
www.geocities.com /SiliconValley/Monitor/3131/ne/2nenotes.html   (1785 words)

  
 AppleTalk Transport Protocol   (Site not responding. Last check: 2007-11-03)
The AppleTalk Transport Protocol is the original protocol that Apple Macintosh computers used to communicate with each other.
Once the AppleTalk protocol was converted to communicate over ethernet it was called EtherTalk.
Connecting an original Macintosh computer to an ethernet network requires an EtherTalk to AppleTalk bridge.
www.sciencedaily.com /encyclopedia/appletalk_transport_protocol   (131 words)

  
 Microsoft Protocols   (Site not responding. Last check: 2007-11-03)
The primary advantage of this protocol is that it is easy to configure and Microsoft claims that it runs faster.
It is not a routable transport protocol which is why NBT exists on large networks to use routable TCP protocol on large networks.
This protocol may sometimes be called the NetBIOS frame (NBF) protocol.
www.comptechdoc.org /independent/networking/protocol/protmicro.html   (230 words)

  
 Apple Open Transport Protocol (Linktionary term)
Transport independence is designed to free network developers and users from any need to know about the underlying network.
With the release of Open Transport, Apple minimized development work on its traditional AppleTalk protocol stack in favor of Open Transport.
Likewise, MacTCP (the TCP/IP protocol stack in early releases of Mac OS) was pushed aside in favor of Open Transport.
www.linktionary.com /a/aotp.html   (273 words)

  
 TCP (Transport)   (Site not responding. Last check: 2007-11-03)
Transmission Control Protocol (TCP) supports the network at the transport layer.
Connection oriented means both the client and server must open the connection before data is sent.
It must be added to the sequence number field of the segment to generate the sequence number of the last byte of urgent data.
www.comptechdoc.org /independent/networking/guide/nettcp.html   (342 words)

  
 Protocols
Protocols — a set of rules for communication.
Protocol stack (suite) — a communications architecture implemented by chaining together a set of software modules, each of which implements one of the protocols in the stack.
When a set of protocols work together it is called a protocol stack or protocol suite.
www.brazosport.cc.tx.us /~jedibill/Chap6protocols.htm   (906 words)

  
 afpd(8): AppleTalk Filing Protocol daemon - Linux man page
afpd(8): AppleTalk Filing Protocol daemon - Linux man page
afpd provides an AppleTalk Filing Protocol (AFP) interface to the Unix file system.
It is normally started at boot time from /etc/rc.
www.die.net /doc/linux/man/man8/afpd.8.html   (554 words)

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