02-04-2012 03:33 PM - edited 03-07-2019 04:44 AM
Can someone shed some lights on the layer below. The OSI Model only covers seven layers, and am just trying to understand where the layers below are used.
Development Environment Layer
Testing Layer
Infrastructure Layer
Thanks
02-04-2012 03:42 PM
They're not OSI, they're the counterpart, the ISO. Mostly seen in x.25 protocols.
02-04-2012 11:54 PM
Thanks Leo
Is there any site where I can find description of these layers. I tried google, but no luck
02-05-2012 12:51 AM
My response contains HTML link.
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