Editing Stratus VOS (section)

===Communications===
VOS supports the following protocols<ref name="Vos Specifications" />

*[[Internet protocol suite|TCP/IP]]
*[[X.25]]
*[[Systems Network Architecture|SNA]]
*SDLC/QLLC
*Async
*[[Binary Synchronous Communications|Bisync]]
*[[LAPB]]
*Poll/Select
*[[Houston Automatic Spooling Priority|RJE/HASP]]
*ALC/SLC
*[[Society for Worldwide Interbank Financial Telecommunication|Visa, S.W.I.F.T., NASDAQ, FAS, CHIPS, AMEX]]
*[[IBM WebSphere MQ|MQ Series]]

Older versions of VOS implemented a non-OSI standard TCP/IP known as OS TCP/IP (Operating System TCP/IP.) VOS since version 14.x has implemented OSI-compliant Streams-TCP. Older applications using OS TCP/IP have to be ported in order to use STCP.<ref name="Porting OS-TPP">{{cite web|url=http://stratadoc.stratus.com/vos/14.7.1/r418-03/wwhelp/wwhimpl/js/html/wwhelp.htm?context=r418-03&file=ch1r418-03.html |title=Overview of Migrating from OS TCP/IP to STCP |website=Stratadoc.stratus.com |accessdate=2016-05-21}}</ref> This can mean a loss of functionality as OS TCP/IP supported several functions that are not OSI-compliant and have therefore been abandoned.  The ftServer hardware that V Series runs on only supports TCP/IP and X.25 (X.25 only when equipped with the optional NIO.) Websphere MQ 6.0 (a.k.a. MQ Series) is TCP/IP based; so, that is also supported by ftServer hardware.  Devices supporting the legacy protocols run on the Continuum hardware and may be accessed from current hardware over the Open StrataLINK<ref>{{cite web|title=OpenStrataLINK Administration|url=http://stratadoc.stratus.com/vos/17.2.0/r388-06/wwhelp/wwhimpl/js/html/wwhelp.htm?context=r388-06&file=ch1r388-06.html|publisher=Stratus Technologies}}</ref>  network.