Editing Data Link Control

In the [[OSI model|OSI]] [[computer network|networking]] model, '''Data Link Control''' ('''DLC''') is the service provided by the [[data link layer]]. [[Network interface card]]s have a DLC address that identifies each card; for instance, [[Ethernet]] and other types of cards have a 48-bit [[MAC address]] built into the cards' [[firmware]] when they are manufactured. 

There is also a [[transport layer|network transport protocol]] with the name Data Link Control, comparable to better-known protocols like [[TCP/IP]] and [[AppleTalk]]. DLC is a transport protocol used by [[IBM]] [[Systems Network Architecture|SNA]] [[mainframe computer|mainframe]] computers and peripherals and compatible equipment. In computer networking, it is typically used for communications between network-attached printers, workstations and servers, for example by [[Hewlett-Packard|HP]] in their [[JetDirect]] [[print server]]s. While it was widely used up until the time of [[Windows 2000]], versions from [[Windows XP]] onward do not include support for DLC.<ref>{{cite web|url=http://support.microsoft.com/kb/306037|title=The DLC Protocol Is Not Available in Windows XP|author=Microsoft|date=October 11, 2002|work=Microsoft Support|access-date=November 8, 2012|archive-url=https://web.archive.org/web/20050910072152/http://support.microsoft.com/kb/306037|archive-date=2005-09-10|url-status=dead }}</ref>
== External links ==
* {{webarchive |url=https://web.archive.org/web/20210615041045/http://publib16.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/progcomc/dlc_ovw.htm |title=Generic DLC Environment Overview}}
* {{webarchive |url=https://web.archive.org/web/20080506183006/http://www.microsoft.com/technet/prodtechnol/windows2000serv/reskit/prork/prcj_ibm_wcro.mspx?mfr=true |title=Microsoft DLC protocol in Windows 2000}}
* {{webarchive |url=https://web.archive.org/web/20170826121803/https://technet.microsoft.com/de-de/library/ee266489.aspx |title=Microsoft TechNet: The Data Link Control Interface}}, 30.3.2013

==References==
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[[Category:OSI protocols]]