User talk:Zac67/Archives/2024/April

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OSI model

Hi You removed my commit, can you please expand on it? Is it only the "Layer 0: " you don't like?

=== Layer 0: Physical media ===
ISO/IEC 7498-1, refence to physical media as:^[1]

"provides the means for transfer of information between open systems" (4.2.8)

Is part of the four elements that is basic for the OSI-model (5.1.3).

The lowest layer abstracts the physical media that connect them (5.2.2.4)

Real subnetwork, is a all the equipment and physical media, which forms a autonomous system (7.5.1.1).

This includes:^[2]

Cabling infrastructure

Wavelength-division multiplexing

Radio

EidenNor (talk) 06:15, 4 April 2024 (UTC)

Whatever Belden's marketing writes, there is no layer 0 in OSI. The physical media are all layer 1, the physical layer, , see ISO 7498 clause 7.7.

And we're not discussing this here but in Talk:OSI model. --Zac67 (talk) 06:28, 4 April 2024 (UTC)

^ Cite error: The named reference ISO-7498-1 was invoked but never defined (see the help page).
^ "OSI Seven-Layer Model: Where Does Layer 0 Fit In?". www.belden.com. Retrieved 2023-12-18.

[ISO-7498-1-1] Cite error: The named reference ISO-7498-1 was invoked but never defined (see the help page).

[2] "OSI Seven-Layer Model: Where Does Layer 0 Fit In?". www.belden.com. Retrieved 2023-12-18.

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