The core of the 6th edition is its commitment to "keeping current" with technologies that did not exist or were in their infancy during previous editions.
Cryptography (Symmetric-key and Public-key algorithms), digital signatures, management of public keys, authentication protocols, communication security protocols (IPsec, TLS), and firewalls. computer networks tanenbaum 6th edition ppt
Complex handshakes, routing algorithms, and packet structures are broken down into step-by-step animations or diagrams. The core of the 6th edition is its
Deep dives into DOCSIS for high-speed Internet. 2. The Data Link Layer & MAC Sublayer management of public keys