ecne

• ECNE

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DECnet

1 DECnet is a suite of network protocols created by Digital Equipment Corporation,

originally released in 1975 in order to connect two PDP-11 minicomputers. It

evolved into one of the first peer-to-peer network architectures, thus transforming DEC into a networking powerhouse in the 1980s. Initially built with three layers, it later (1982) evolved into a seven-layer

OSI-compliant networking protocol.


DECnet

1 DECnet was built right into the DEC flagship operating system VMS since its inception.

Later Digital ported it to Ultrix, as well as Apple Macintosh and IBM PC running variants of DOS and Microsoft Windows under the name DEC

Pathworks, allowing these systems to connect to DECnet networks of VAX machines as

terminal nodes. More recently, an open-source version has been developed for GNU/Linux.

DECnet code in the Linux kernel was marked as orphaned on February 18, 2010.


DECnet Brief overview of the evolution of DECnet

1 Although network protocol analyzer tools tend to categorize all protocols from DIGITAL as "DECnet", strictly

speaking, non-routed DIGITAL protocols such as LAT, SCS, AMDS, LAST/LAD are not DECnet protocols

and are not part of the DIGITAL Network Architecture.



1 To trace the evolution of DECnet is to trace the development of DNA. The beginnings of DNA were in the early

1970s. DIGITAL published its first DNA specification at about the same time that IBM announced its Systems

Network Architecture (SNA). Since that time, development of DNA has

evolved through the following phases:



1 DECnet Phase IV protocol suite



1 Digital also released a product called the PATHWORKS client, and more

commonly known as the PATHWORKS 32 client, that implemented much of DECnet Phase IV for DOS, and 16 and 32 bit Microsoft Windows platforms

(all the way through to Windows Server 2003).



1 The Ethernet implementation was unusual in that the software changed the physical address of the Ethernet interface on the

network to AA-00-04-00-xx-yy where xx-yy reflected the DECnet network address of

the host. This allowed ARP-less LAN operation because the LAN address could be deduced from the DECnet address. This

precluded connecting two NICs from the same DECnet node onto the same LAN

segment, however.https://store.theartofservice.com/itil-2011-foundation-complete-certification-kit-fourth-edition-study-guide-ebook-and-online-course.html


1 The initial implementations released were for VMS and RSX-11, later this expanded to virtually every Operating System DIGITAL

ever shipped with the notable exception of RT-11. DECnet stacks are found on Linux, SunOS and other platforms, and Cisco and other network vendors offer products that

can cooperate with and operate within DECnet networks. Full DECnet Phase IV

specifications are available.



1 At the same time that DECnet Phase IV was released, the company also

released a proprietary protocol called LAT for serial terminal access via Terminal servers. LAT is entirely

separate from DECnet, though many DECserver LAT terminal servers did

use MOP for the server image download and related bootstrap

processing.https://store.theartofservice.com/itil-2011-foundation-complete-certification-kit-fourth-edition-study-guide-ebook-and-online-course.html


1 Enhancements made to DECnet Phase IV eventually became known

as DECnet Phase IV+, although systems running this protocol

remained completely interoperable with DECnet Phase IV systems.



1 It was later renamed DECnet/OSI to emphasize its OSI interconnectibility,

and subsequently DECnet-Plus as TCP/IP protocols were incorporated.


DECnet Availability

1 The DECnet protocols were designed entirely by Digital Equipment

Corporation. However, DECnet Phase II (and later) were open standards with published specifications, and

several implementations were developed outside DEC, including

one for Linux.


Packet-switched - DECnet

1 However, DECnet Phase II (and later) were open standards with published

specifications, and several implementations were developed outside DEC, including one

for Linux.[http://archive.computerhistory.org/resources/text/dec/dec.digital_1957_to_the_pre

sent_(1978).1957-1978.102630349.pdf] Digital Equipment Corporation, Nineteen

Fifty-Seven to the Present, Digital Equipment Corporation, 1978, page 53


MelsecNet

1 'MelsecNet'[http://www.mitsubishi-automation.com/products/

networks_melsecnet10h.html] is a protocol developed and supported by Mitsubishi Electric for data delivery. MelsecNet supports 239 networks.


MelsecNet

1 Mitsubishi provides a [http://suport.siriustrading.ro/01.Doc

Act/1.%20Automate%20programabile%20(PLC)/

1.4.%20Modulare%20MELSEC%20Q/1.4.a.%20Manuale

%20training/Melsec%20Q%20-%20Training%20Manual

%20(MelsecNet-H%20course)%20SH(NA)-080619-A%20(01.06).pdf

manual] for both the variants Melsecnet/H and MelsecNet/10


ECNEC

1 Executive Committee of National Economic Council (ECNEC) is

Bangladesh's highest authority for approving of development activities

reflective of long-term national policies and objectives.


ECNEC - History

1 ECNEC structure and functions were laid down in the Cabinet Division

Resolution in 1982. In that year, it consisted of the Ministry of Finance|Minister for Finance and Planning as

Convenor. Included in the committee were Minister for Industries and

Commerce, Minister for Works and Minister of the concerned ministry.


ECNEC - History

1 In 1982, Bangladesh was under martial law and so the Principal Staff

Officer and General Staff Officer to the Chief Martial Law Administrator

and Chief of the General Staff (Bangladesh)|Chief of the General

Staff were also required to attend the meetings of the ECNEC in 1980s


ECNEC - History

1 Depending on the nature of administration of the country, ECNEC

structure and functions underwent many changes since it has been

inaugurated. As an example, in July 1986, after the martial law as lifted upon parliament election, Deputy

Chief Martial Law Administrator was replaced by Deputy Prime Minister replaced the Deputy Chief Martial Law Administrator as Convenor of

the ECNEC.


ECNEC - History

1 The cabinet secretary, secretary Planning, principal secretary of Prime Minister's office, secretary of External

Resources Division, secretary of Implementation, Monitoring and Evaluation Division, Governor of Bangladesh Bank, the relevant

members of the Planning Commission and secretaries are also

required to assist ECNEC.https://store.theartofservice.com/itil-2011-foundation-complete-certification-kit-fourth-edition-study-guide-ebook-and-online-course.html

ECNEC - Structure

1 ! scope=col style=background:#efefef; |

Role in ECNEC


ECNEC - Supporting officials

1 Following personnela are required to assist ECNEC

committee.


ECNEC - Meetings

1 ECNEC meeting take place at NEC Conference room in city’s Sher-e-

Bangla Nagor. Meeting is held as and when required while Planning

Division provides secretarial services to the ECNEC.


Ecne

1 In Celtic mythology, 'Ecne' (Wisdom, Old Irish ecna, ecne, wise,

enlightened) was one of the Tuatha Dé Danann and was the god of

wisdom, or knowledge.[http://www.sacred-

texts.com/neu/celt/rac/rac08.htm MacCulloch, John Arnott: The Religion of the Ancient Celts (1911) - chapter V, The Tuatha Dé Danann] online at

sacred-texts.com (accessed 23 October 2007)


Ecne

1 Ecne had three fathers, Brian (mythology)|Brian, Iuchar, and

Iucharba, who were all sons of Brigid and Tuireann, also known as Delbáeth.[http://www.shee-

eire.com/MagicMythology/GodsGoddess/Celtic/Gods/Ecne/page%201.htm

Gods Goddesses: Ecne] at shee-eire.com (accessed 23 October 2007) They are called the tri dee Donand,

meaning the three gods of Danu (Irish goddess)|Danu, which can also be read as the three gods of dán, or

knowledge


Ecne

1 Ecne's three fathers killed Cian, the father of Lugh, and Lugh's deadly

revenge is recounted in The Fate of the Children of

Tuireann.[http://www.shee-eire.com/MagicMythology/Myths/Tuat

ha-De-Danann/FateofthechildrenofTurenn/Page1.htm

The Fate of the Children of Turenn] online (accessed 23 October 2007)


Ecne

1 In Irish Druids and Old Irish Religions, James Bonwick reports Ecne as female and as the goddess of

poetry.Bonwick, James: Irish Druids and Old Irish Religions (London,

Sampson Low, Marston Co, 1894) p. 141


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ecne

Documents

foundation brief overview

decnet protocols

decnet network address

digital network architecture

suite of network protocols

decnet code

later digital

evolution of decnetto