Re: Context Switching in SS7 Context

[Paul Pham <pham@xmission.com>]

hi,

1 ca'ch to^?ng qua't "context switching" co' the^? hie^?u
nhu+ chuye^?n tu+` 1 ti`nh tra.ng (state) na`y sang
1 ti`nh tra.ng kha'c.

tu+` "context switching" la` xua^'t pha't tu+` Operating Systems
trong computer science. Ca'i OS scheduler chi.u tra'ch nhie^.m
ve^` pha^`n na`y. tho^ng thu+o+`ng "context swiching" xa?y ra khi
ca'i CPU bi. interrupted. (khi -do' ca'i scheduler quye^'t
-di.nh "swicth" tu+` ca'i TASK na`y sang ca'i Kha'c hay kho^ng)

trong tru+o+`ng ho+.p cu?a ba.n (SS7) tu+` "context switching"
ra^'t ga^`n nghi~a vo+'i ca'i nghi~a nhu+ no'i o+? tre^n.
> =======
> > 'Context' in this (particular and narrow) sense represents a "set of 
> > data" associated with a particular SS7 message and is used by the SS7 
> > network elements to properly identify and route the call. In order for 
> > a network element to process multiple messages in real time, the 
> > ability to store and restore (i.e. switch between) context information 
> > for any message is required. The software implementation for this 
> > capability is known in my professional world as "context switching"
> > and involves what is called a "context stack".
> ======
> 
> > ps. ho^m no. co' tha^'y message (hi`nh nhu* cua? ba'c AnHai) ho?i ve^` 
> > OSI vs. internet protocol. Hai ca'i na`y kho^ng co' lie^n he^. gi`

TCP/IP (internet protocol suite) xua^'t pha't tu+` My~, khi
ho. nghie^n cu+'u ve^` ma.ng. TCP/IP la` 2 different protocols.
TCP = transport ... IP = network or routing 

OSI= network interface model where various components of networking
software interface with one another (7 layers) do ISO (international
standard org. mostly the Europeans) -de^` nghi. TCP/IP "fit" into layer 4
va` 3.

btw, hi`nh nhu+ ng` mi~ kho^ng thi'ch ca'i model na`y la('m