Difference between revisions of "System Communication Architecture"

From Computer History Wiki
Jump to: navigation, search
m (Added a description of the SCA model in words)
m (set keywords in bold)
Line 4: Line 4:
  
 
The System Communication Architecture has got a three-tier model consisting of the layers (from top to bottom):
 
The System Communication Architecture has got a three-tier model consisting of the layers (from top to bottom):
* System Application (SYSAP), using the SYSAP Protocol
+
* '''System Application''' (SYSAP), using the SYSAP Protocol
* System Communications Services (SCS), using the SCS Protocol
+
* '''System Communications Services''' (SCS), using the SCS Protocol
* Port/Port Driver Layer, using the PPD Protocol
+
* '''Port/Port Driver Layer''', using the PPD Protocol
  
 
{{semi-stub}}
 
{{semi-stub}}

Revision as of 20:38, 29 April 2024

System Communication Architecture

The System Communication Architecture (given as Systems Communication Architecture in some documents) is DEC's data networking architecture for VAXcluster systems; it defines the major constituent protocols, what functions each one performs, and how they interact. It allows the basic data-communication mechanism of a VAXcluster, the Computer Interconnect, to be shared between the numerous functions needed to operate the VAXcluster.

The System Communication Architecture has got a three-tier model consisting of the layers (from top to bottom):

  • System Application (SYSAP), using the SYSAP Protocol
  • System Communications Services (SCS), using the SCS Protocol
  • Port/Port Driver Layer, using the PPD Protocol

External links

  • The System Communication Architecture, in DTJ, Vol. 1 No. 5, September, 1987 (pp. 24-30 of the PDF)