November 2001
Intermediate to advanced
320 pages
7h 58m
English
Content preview from IP SANs: A Guide to iSCSI, iFCP, and FCIP Protocols for Storage Area NetworksBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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5.1. Layer 2
The OSI Reference Model defines the physical, data link, and network layers as the foundation strata on which higher level functions are built. The physical and data link layers are mandatory for communication between any two devices on the same network segment. A local LAN, for example, may use twisted pair cabling to join three workstations, each provisioned with an adapter card. Copper wire provides the physical layer function, whereas the NICs provide the data link functions. As shown in Figure 5-1, these two layers alone are, theoretically, sufficient for communication between the workstations. Logical link control oversees the orderly transmission of data from the upper layer application to the underlying MAC layer. The MAC ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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