The article examines how IPv6 was designed to eliminate decades‑old networking baggage, but its reliance on discarding legacy layers, MAC addresses, ARP, and DHCP makes the ideal blueprint unattainable in today’s mixed‑technology Internet.
This article explains how Ethernet switches learn MAC addresses, forward frames, prevent loops, and differ across store‑and‑forward, cut‑through, and multi‑layer designs, while also covering routing fundamentals, layer‑3 switching operation, and the principles of layer‑4 load‑balancing switches.
This article explains the operating principles, main functions, characteristics, and classifications of Ethernet switches, covering layer‑2 learning and forwarding, layer‑3 routing, layer‑4 load‑balancing, and the technical criteria used to evaluate switch performance.
This article provides a comprehensive overview of network switches, covering their definition, MAC‑based operation, port expansion, classification by manageability and OSI layer, various management methods (Web, CLI, SNMP), product specifications, application scenarios, and key features such as VLAN, port isolation, aggregation, loop detection, ACL, ARP protection, DHCP services, and routing capabilities.
This article explains how to use ACLs on a Huawei S7706 device to prevent inter‑VLAN communication at Layer 3 by defining separate ACL numbers for each VLAN pair and applying them with traffic‑filter commands on the inbound direction of each VLAN interface.
