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Topic: DECnet


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In the News (Sun 20 Dec 09)

  
  DECnet
DECnet addresses are not associated with the physical networks to which the nodes are connected.
DECnet routing occurs at the routing layer of the DNA in DECnet Phase IV and at the network layer of the OSI model in DECnet/OSI.
DECnet Phase IV routing is implemented by the DECnet Routing Protocol (DRP), which is a relatively simple and efficient protocol whose primary function is to provide optimal path determination through a DECnet Phase IV network.
www.cisco.com /univercd/cc/td/doc/cisintwk/ito_doc/decnet.htm   (0 words)

  
 DECnet address converter
DECnet Phase IV addresses and Ethernet MAC addresses are directly related.
Enter the DECnet Phase IV area and node numbers below to determine the Ethernet MAC address.
Enter the Ethernet MAC address below to determine the DECnet Phase IV address.
www.powerdog.com /addrconv.cgi   (48 words)

  
 DECnet | Topic Definition | Find the Meaning and Define the Answer of DECnet   (Site not responding. Last check: )
DECnet is a proprietary suite of network protocols created by Digital Equipment Corporation, originally released in 1975 in order to connect two PDP-11 minicomputers.
From a technical standpoint DECnet was built right into the DEC flagship operating system (VAX/VMS), being the foundation for the first cluster architecture ever designed, the VAXcluster.
The DIGITAL Network Architecture is essentially a set of documents which define the network architecture in general, states the specifications for each layer of the architecture, and describes the protocols which operate within each layer.
www.thefreeencyclopedia.com /definition/word.aspx?w=DECnet   (679 words)

  
 RFC 1405 (rfc1405) - Mapping between X.400(1984/1988) and Mail-11 (DECnet
This document covers mainly the O/R address to DECnet from/to address mapping (and vice versa); other mappings are based on RFC 1327 and its eventual future updates.
These DECnet communities will in the future possibly migrate to DECnet Phase V (DECnet-OSI) protocols, converting thus their messaging systems to OSI specifications, i.e., merging into the X.400 MHS; however the transition period could be long, and there could always be some DECnet Phase IV communities around.
Examples Let us suppose that: the DECnet network name (net) is 'HEP'; the DECnet node name of the gateway (gwnode) is 'X4TDEC'; the Country Code of the gateway is 'IT' and its ADMD is 'garr'; (and these two fields are enough to identify uniquely the gateway within the X.400 MHS).
www.faqs.org /rfcs/rfc1405.html   (3182 words)

  
 DECnet Network Protocol | Linux Journal
DECnet is still widely used in legacy systems, and the intention of the Linux DECnet project was to allow integration of those systems with Linux-based solutions.
Although not every DECnet file name you type in will contain special shell characters, it is a good idea to get into the habit of using the single quotes so that you don't get unexpected effects if you forget them when they are needed.
Since the DECnet layering model does not map exactly onto the socket code, session control is provided partly by the kernel and partly by a user space library called libdnet.so.
www.linuxjournal.com /article/3129   (4313 words)

  
 [No title]
ACKNOWLEDGEMENTS This DECnet Routing document is based on the many years of experience in constructing, maintaining, operating, inter-operating and managing a very large global DECnet entity, the DECnet portion of the network infrastructure known as HEPnet.
DRAFT DECnet Routing 6/7/91 page 17 4.3 Network Topology Modification, Additions, and Management Responsibilities New circuits and internetwork links, foreign connects and the like, may be implemented from time to time as programmatic needs require them and as financial constraints allow them to be implemented.
The DECnet circuit cost of a rib or tail circuit will be set to a default value of 25, although values as low as 22 may be utilized to accommodate individual network requirements.
www.es.net /history/esnet-decnet-routing-version-2-1.txt   (11124 words)

  
 RETRO DECnet - HOME
This site is currently under construction: by now you can browse our node list and soon you'll find more technical details.
You can ask details about joining or accessing the network by chatting live with us on #retrocomputing IRC channel on irc.azzurra.org server.
Our DECnet network uses a bridging program that routes DECnet frames among varius LAN segments thru the Internet: the program is derived from the one used for HECnet, and is the original work of Johnny Billquist.
decnet.ipv7.net   (0 words)

  
 OpenVMS: DECnet Access Method : SAS/CONNECT
The statements in the first line invoke a SAS session, specify the DECnet access method, and specify a remote host with the DCL symbol format that is identified by RMTHOST.
This connection causes DECnet to create a process on the specified remote host by using proxy access or by using the username and password that is supplied as the ACI (Access Control Information).
DECnet then finds and executes the command file that is associated with the object name SAS$CONN. This command file contains DCL commands, one of which invokes the remote SAS session.
www.asu.edu /it/fyi/dst/helpdocs/statistics/sas/sasdoc/sashtml/comm/z0381612.htm   (1081 words)

  
 DECnet for Linux - Kernel Patch
This is the distribution of a DECnet Socket Layer for LINUX 2.0 and 2.2.
Unfortunately DECnet uses many physical addresses to deal with routing and the only Ethernet Card that responds to multiple physical addresses is the DEC Tulip.
As the DECnet node address is related to the physical address of the Ethernet card, please refer later on this file to see how to setup it in case you don't have a TULIP one.
linux-decnet.sourceforge.net /kernel.html   (661 words)

  
 DECnet (Linktionary term)
DECnet is Digital Equipment Corporation's name for the set of hardware and software products that implement DNA (Digital Network Architecture), a protocol suite that is very similar in structure to the OSI protocol model, except that an additional layer exist under the application layer for network management.
DECnet was first announced in the mid 1970s along with the introduction of the DEC VAX 11/780.
DECnet Phase IV is still the most widely used of the DECnet releases, even through DECnet Phase V was announced in 1987.
www.linktionary.com /d/decnet.html   (490 words)

  
 Linux Kernel Documentation :: networking : decnet.txt
The 81 ethernet address of your ethernet card has to be set according to the DECnet 82 address of the node in order for it to be autoconfigured (and then appear in 83 /proc/net/decnet_dev).
Setting the MAC address 93 of your ethernet card to an address starting with "hi-ord" will cause a 94 DECnet address which matches to be added to the interface (which you can 95 verify with iproute2).
128 129 The DECnet raw socket layer has been removed since it was there purely 130 for use by the routing daemon which will now use netfilter (a much cleaner 131 and more generic solution) instead.
www.mjmwired.net /kernel/Documentation/networking/decnet.txt   (1849 words)

  
 DECnet, Phase IV, Phase V
DECnet Phase IV and Phase V (DECnet/OSI) are supported by Bay Networks routers.
DECnet uses a distance vector (Bellman-Ford) routing algorithm for determining a route, and updates occur according to an interval timer and any network changes.
A static adjacency includes the DECnet address of the neighbour, the MAC address of the neighbour and the circuit used to reach the neighbour.
www.rhyshaden.com /decnet.htm   (1517 words)

  
 Windows: DECnet Access Method : SAS/SHARE
If the server cannot be reached with the DECnet access method, a second attempt is made with the TCP/IP access method, and then with the APPC access method.
If the DECnet host name is not a valid SAS name, you may assign the name of the server host to a SAS macro variable, then use the name of that macro variable as the host-name in the two-level server name.
The server is simultaneously available to client sessions that use the DECnet access method as well as to clients that use the TCP/IP and APPC access methods.
www.uni.edu /sasdoc/comm/z0379521.htm   (1364 words)

  
 Troubleshooting DECnet
DECnet Phase V is a superset of the OSI protocol suite and -supports all OSI protocols as well as several other proprietary and standard protocols that were supported in previous versions of DECnet.
Use the debug decnet adj privileged exec command to determine whether the router is sending hello packets and whether hellos are being received.
Use the show decnet route exec command to see whether the adjacency with the expected designated router is in a "down" or "initializing" state.
www.pluscom.ru /cisco_product/cc/td/doc/cisintwk/itg_v1/tr1911.htm   (5952 words)

  
 Unicenter TNG
DECnet is well proven, but incompatible with other popular network protocols.
The Unicenter TNG DECnet Manager Option enables organizations to gain control over the DECnet network by showing at a glance what devices are on the network and whether they are available.
DECnet objects are integrated with TCP/IP and SNA objects in the Unicenter TNG object repository.
www.shi.com /Global/Content/Vendors/computerassociates/tng/decnet_manage_op.htm   (638 words)

  
 DECnet IV, DECnet Plus, DNA and OpenVMS
DECnet is a protocol suite developed and supported by Digital Equipment Corporation (Digital or DEC, now part of HP).
DECnet is developed under the framework of the Digital Network Architecture (DNA), which is a comprehensive layered network architecture that supports a large set of proprietary and standard protocols.
The DECnet Phase IV DNA is similar to the OSI architecture, which utilizes a seven layered approach.
www.javvin.com /protocolDECnet.html   (382 words)

  
 One Protocol to Rule Them All? Maybe Not
DECnet, in particular, can be found in various nooks and crannies, and those using it say they have no plans to eliminate it.
DECnet was originally developed in 1974 by DEC and was a standard of data centers in the 1970s and '80s.
DECnet offers a full session control implementation, facilitating applications that use the requestor's identity and authorization in a variety of ways, without requiring the implementer of a network application to conduct validation or privilege checks.
itmanagement.earthweb.com /erp/article.php/3517186   (1336 words)

  
 DECnet IV, DECnet Plus, DNA and OpenVMS
DECnet is a protocol suite developed and supported by Digital Equipment Corporation (Digital or DEC, now part of HP).
DECnet is developed under the framework of the Digital Network Architecture (DNA), which is a comprehensive layered network architecture that supports a large set of proprietary and standard protocols.
The DECnet Phase IV DNA is similar to the OSI architecture, which utilizes a seven layered approach.
www.networkdictionary.com /protocols/decnet.php   (313 words)

  
 DECnet & OSU
After the DECnet environment has been started any CGI script may be executed on the local system via DECnet by substituting "/decnet/" for "/cgi-bin/" as the script path, and any OSU script available by using "/osu/".
The DECnet object is the program or procedure that is activated at the target system inside of a network-mode process to interact with the HTTP server.
DECnet automatically caches and re-uses netserver processes, whereas there were well-known performance problems with spawning sub-processes.
cc.usu.edu /doc/scripting/scripting_0700.html   (2857 words)

  
 What is Decnet
DECnet is a group of data-communications products, including a protocol suite, developed and supported by Digital Equipment Corporation.
DECnet Phase V) is backward-compatible with DECnet Phase IV and is the most recent version of DECnet.
Data-Access Protocol (DAP), a proprietary Digital protocol, is used by DECnet Phase IV at the network-application layer.
www.pulsewan.com /data101/decnet_basics.htm   (2330 words)

  
 Linux Headquarters - Kernel v2.5.41-ac2 /Documentation/networking/decnet.txt
+If you do st a DECnet address on the command line, it has only one purpose +which is that its added to the addresses on the loopback device.
The ethernet address of your ethernet card has to be set according to the DECnet -address of the node in order for it to be recognised (and thus appear in +address of the node in order for it to be autoconfigured (and then appear in /proc/net/decnet_dev).
Setting the MAC address +of your ethernet card to an address starting with "hi-ord" will cause a +DECnet address which matches to be added to the interface (which you can +verify with iproute2).
www.linuxhq.com /kernel/v2.5/41-ac2/Documentation/networking/decnet.txt   (923 words)

  
 Amazon.ca: decnet: Books   (Site not responding. Last check: )
DECnet Phase V by James Martin and Joe Leben (Hardcover - Oct 1991)
Decnet Phase V: An Osi Implementation by James Martin and Joe Leben (Hardcover - Jan 1992)
Les protocoles de reseaux osi et decnet phase V (coll.
www.amazon.ca /s?ie=UTF8&tag=54003-20&rh=i:books,k:decnet&page=1   (210 words)

  
 NetworkIT DECnet Manager Option
DECnet is well proven, but incompatible with other popular network protocols.
As a result, organizations have had to manage the DECnet environment as a separate entity from the rest of the enterprise.
Organizations need a solution to manage their DECnet environment from an enterprise-level perspective --a protocol-independent, highly scalable solution that monitors and manages network traffic while providing an integrated picture of network performance.
www.ca.com /products/networkit_decnet_manager.htm   (159 words)

  
 DECnet
DECnet Phase V is a superset of the OSI protocol suite and supports all OSI protocols as well as several other proprietary and standard protocols that were supported in previous versions of DECnet.
Although most of DNA was brought into OSI conformance with DECnet Phase V, DECnet Phase IV routing was already very similar to OSI routing.
DECnet application protocols use the DNA session control protocol and the DNA name service.
www.ba-stuttgart.de /~schulte/htme/55145.htm   (1299 words)

  
 DECnet Protocols Suite - RP | MOP | NSP | SCP | DAP | CTERM | LAT | STP | LAVC
Digital Equipment Corporation (DEC) developed the DECnet protocol to allow high-speed communication between DEC minicomputers across local and wide area networks.
It defines routing classes into two levels: level 1, which handles routing within a single DECnet routing area; and level 2, which handles routing between areas.
The DECnet area and node given in the decimal dot form: Area.Node (where Area can extend from 1-63 and Node can extend from 1-1023).
www.protocols.com /pbook/decnet.htm   (1055 words)

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