A reference model is a virtual model which defines how communication should take place. It logically divides the processes which are required for the communication into layers. This concept is known ...
When I was involved with IBM’s SNA it was the simple teletypecircuit that was legacy; then TCP/IPV4 came along and eventually madeOSI, SNA and DECnet all legacy. Now its perhaps IPv6 that is trying ...
Ethernet is a layer 2 data link protocol that is widely used with the TCP/IP protocol, which resides at layers 3 and 4. To understand network communications, it is essential to learn about the ...
Do you remember when we used multi-protocol routing for IPX, AppleTalk, and TCP/IP running on the same network? In the 1980s and early 1990s many enterprises had multiple protocols running on the ...
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