Networking Switches, Routers, Access Points

Browse technical resources about PON, FTTH, OLT, ONU, optical splitters, and fiber access networks.

HOME / Networking Switches, Routers, Access Points - DKN Access Networks & Consulting

Networking Switches Routers Access
  • Access Layer Switches and Routers

    Access Layer Switches and Routers

    Access layer networking serves as the critical point where end devices and users connect to a broader network. It's essential for handling data traffic efficiently and ensuring network security., a third layer of the ISO-OSI model, and is the. The table below shows a comparison between Routers and Switches: 3.


  • Are access switches any good

    Are access switches any good

    Access switches are known for their low costs and high port density, making them ideal for various application scenarios, such as offices, small equipment rooms, departments with frequent business activities, multimedia production centers, and web management centers. An access switch serves as an interface for end-user devices to connect to the network, providing essential data transmission services. It typically sits at the access layer, provides high port density, often delivers PoE, and forwards traffic. Knowing the roles of core, aggregation, and access switches in contemporary network topology becomes essential to create effective and scalable networks. They enable communication, enforce traffic management, and play a vital role in maintaining efficient, secure data flow across an organization.

    [PDF Version]
  • How many network cables and routers are needed for fiber optic internet access

    How many network cables and routers are needed for fiber optic internet access

    Fiber optic internet offers incredible speed and reliability. You'll typically need an Optical Network Terminal (ONT) provided by your installer, an Ethernet cable to connect the ONT to your router, and your own high-performance router. Unlike copper wires used in cable internet, fiber-optic cables consist of thin, glass fibers that transmit data as pulses of light, carrying information much faster with less interference. As a result, user devices can enjoy high-speed, latency-free Internet performance. What is Fiber Internet and Why Upgrade?The ONT converts the light signals from the fiber optic cable into electrical signals that can be used by standard network devices.


  • Can access layer switches be configured with IP addresses

    Can access layer switches be configured with IP addresses

    Layer 3 routing capabilities are deployed on the access layer switches. As a result, Layer 3 switches are configured with IP addresses on their Switched Virtual Interfaces (SVIs) or routed ports and they participate in a routing protocol such as OSPF. The following are the key components of OSPF: A. A switch operates within a single VLAN and broadcast domain, which matches one IP subnet. It uses a flood-and-learn process to flood frames with unknown MAC addresses to all devices within the VLAN. We explain this process in more detail in our Ethernet course, which is part of the CCNA learning. The following procedure is required to configure Layer 3 Interfaces (Ethernet, VLAN, loopback, and tunnel interfaces) with IPv4 or IPv6 addresses so that the firewall can perform routing on these interfaces. Moreover, you can configure also a Switch Virtual. Configuration of Switch is little different from that of Router or firewall where the interfaces are Layer 3 ports and IP address needs to be assigned to the physical ports. Switch configurations used in this example apply to all versions of.

    [PDF Version]
  • Multiple switches connected to fiber optic interfaces

    Multiple switches connected to fiber optic interfaces

    Can two switches with fiber ports be directly connected through fiber ports? The answer is yes. The connection between two or more Ethernet switches in a certain way (Uplink port, etc. Moreover, when it comes to bandwidth, no currently available technology is better than single-mode fiber. It can provide significantly higher bandwidth and carry more data. Multimode fiber optic switches have emerged as a crucial component, enabling seamless connectivity and efficient data transmission. Other than entry level network switches, most of today's network switches include one or more GiBC (Gigabit Converter) or SFP (Small. This document describes how to troubleshoot fiber optic interfaces by addressing some of the fiber optic module and cabling specifications.


  • The fiber optic box can connect to two routers

    The fiber optic box can connect to two routers

    Yes, you can connect two routers to one fiber modem, but understanding the 'how' and 'why' is crucial for optimal network performance. This guide clarifies the possibilities, practical methods, and potential pitfalls, ensuring you maximize your home or small office network. Before you begin configuration, it is. With an additional fiber optic modem, you can also use the FRITZ!Box on a fiber optic connection (Fiber to the Home, FTTH). Since the FRITZ!Box establishes and controls its own internet connection, all FRITZ!Box functions (such as internet telephony, firewall) are also available without restriction. The easiest way to do is, terminate your ISP connection to single router with at least 2 independent LAN interfaces, then you can build 2 separate networks there. However the real problem is how to create a balance, so assume room A is torrenting and taking up 90% of your internet bandwidth, then. The devices on your network will connect to whichever router has a better signal if you setup a second router to function as a range extender or to share the same SSID as the main router.

    [PDF Version]
  • Can a Cisco switch block access

    Can a Cisco switch block access

    To block unauthorized access to switch ports, switches support a feature called port security. This feature allows you to configure which devices are allowed or blocked on each port. Occasionally, unknown multicast or unicast traffic is flooded to a switch port because a MAC address has timed out or has not been learned by the switch. With this mechanism, a specific port of a switch can be protected with undesirable access. Here, we will learn the theory of this lesson. After initially configuring my new switch a few weeks backs, I wasn't happy knowing that anyone connected to my LAN or WLAN could get to the login page by just knowing the IP. This security feature of Cisco IOS Switches can only be configured on access ports and by default, this feature is disabled.


    FAQs about Can a Cisco switch block access

    How to Configure Port Security

    To configure port security we need to access the command prompt of switch. Click Switch and click CLI and press Enter Key.Port can be secure from i...

    Switchport Port-Security Violation

    We need to specify what action; it should take in security violation. Three possible modes are available:Protect: - This mode will only work with s...

    Switchport Port Security Example

    In our topology PC0 is connected with F0/1 port of switch. Enter following commands to secure F0/1 port.Following table explains above commands in...

    Switchport Port Security Testing

    In our topology we have one additional PC. Assume that, this is the cracker's PC. To gain unauthorized access in network he unplugged the Ethernet...

  • Multi-line access via VLAN switch

    Multi-line access via VLAN switch

    VLAN trunking is a method used to send multiple VLANs across a single network link between two switches or devices. Recently, I built a multi-switch VLAN network in Cisco Packet Tracer, connecting different departments while ensuring seamless communication within VLANs. In this article, I'll walk you through the setup, configuration, and successful implementation of VLANs and trunking across multiple switches. Trunking allows traffic from different VLANs on a switch to traverse the same link to another switch while at the same time, providing a method to segment the different user groups. 30) so all three switches have all three VLANS. The VLAN (Virtual LAN) specification is described in the IEEE 802. Why do we need trunk links? Soon after VLANs were introduced.


  • Campus Network Access Switch

    Campus Network Access Switch

    Cisco Catalyst and Cisco Meraki campus LAN access switches combine wired and wireless to help you drive digital transformation, reinforce security, and simplify your network. Transform your network—big or small, campus or branch—to handle the demands of a new kind of workplace. If DHCPOFFERs are seen coming from any untrusted port, they are dropped. L2 device only – connecting end users! L2 device only – connecting edge switches! Fibre to building distribution, or is copper enough? But would you be. Campus switches are an integral part of any network, responsible for end-to-end connectivity within any organization. Easy to set up and use, they provide ideal combination of affordability. This document provides a pre-validated design & deployment guide for "a" Hybrid Campus LAN comprising both Cisco and Meraki platforms alongside the various design guidelines, topologies, technologies, configurations, and other considerations relevant to the design of any highly available.

    [PDF Version]
  • What are the devices at the switch s access end

    What are the devices at the switch s access end

    Access switches are essential components of a network, acting as the primary connection point for end devices like computers, printers, and IP phones to a local area network (LAN). This guide walks through the eight core network devices you meet first: routers, Layer 2 and Layer 3 switches, next-generation firewalls and IPS, access points, wireless LAN controllers, endpoints, servers, and Power over Ethernet. It typically sits at the access layer, provides high port density, often delivers PoE, and forwards traffic. This layer allows end users to access the network. Various services. Network Devices are the physical appliances required for communication and interaction between computers on a computer network. Allow devices to connect to networks efficiently and securely. Out of the box, switches and end devices come with some general configuration.

    [PDF Version]
  • Is the wireless access point connected to the access switch

    Is the wireless access point connected to the access switch

    Access Points connect via wired Ethernet to a switch, or a switch port on a router, then serve up WiFi. A switch connects devices such as a desktop, laptop, and access point to the router. In this tutorial, we'll try to explain the concept behind each of these terms and. Network Switch: A switch is a physical device used to connect multiple devices on a local area network (LAN), facilitating communication by forwarding data packets to each MAC address of connected devices in an efficient manner. What is a wireless access point? A wireless AP is a network device that. Access points and wireless LAN cards connect devices in a network using radio signals.


  • Connect to PoE monitoring switch for internet access

    Connect to PoE monitoring switch for internet access

    Just connect the camera to the PoE switch using Cat5e or higher cabling, then link the switch to your router or NVR—no extra power adapters needed. Ensure your switch supports standard PoE (802. 3af/at) to guarantee compatibility and reliable performance. This device simplifies your network setup by delivering both power and data through a single. In modern network environments, PoE (Power over Ethernet) switches are widely used in security monitoring, wireless coverage, and other scenarios due to their ability to simultaneously transmit data and power through Ethernet cables.


  • How to shield core switches from attacks

    How to shield core switches from attacks

    Learn how to configure fundamental switch security features to harden your network against internal threats. The MAC address table is the brain of the. Cisco switches, often forming the backbone of such networks, require robust security configurations to ensure the integrity, confidentiality, and availability of network resources. While searching for a clear network switch hardening tutorial, I was surprised to find very little comprehensive information online — despite how. Network switches serve as the building blocks of the network, as they facilitate the flow of data within Local Area Networks (LANs). Is that all? No, there's more to it. Each physical port on a switch creates an isolated packet collision domain. Our GNS3 test environment is not designed to withstand this attack, but you will learn the fundamentals of. Learn how attackers target routers and switches, common vulnerabilities, exploitation techniques, detection methods, and practical hardening steps to protect your network infrastructure.

    [PDF Version]
  • Are routers connected to gigabit fiber optic cables good

    Are routers connected to gigabit fiber optic cables good

    Not all routers are compatible, so choose one designed for fiber optic use. A fiber optic router can handle heavy internet usage, multiple devices, and streaming services. Many major ISPs, such as Verizon and Xfinity, offer fiber connections directly to your door, known as FttP or Fiber. Fiber optic internet delivers blazing-fast speeds and reliable connectivity, making it a top choice for modern homes and businesses. In this guide, we'll walk you through how to. While the ONT establishes your fiber connection, the router broadcasts that signal throughout your home via WiFi and provides wired ethernet ports for direct device connections. Understanding compatibility, potential limitations, and when an upgrade is necessary will ensure you get the most out of your high-speed connection. This guide will break down everything you. However, you need a router capable of supporting multi-gig speeds to get fiber internet connectivity. For the best performance, you'll want at least Cat5e or Cat6 Ethernet cables.

    [PDF Version]
  • Wired Access Switch Manufacturers

    Wired Access Switch Manufacturers

    typically refers to equipment facilitating the use of a. Typically, this includes,,, and other related hardware. This is a list of notable vendors who produce network hardware.


  • Huawei Access Switch 48

    Huawei Access Switch 48

    The Huawei CloudEngine S5736-S48S4X-D is a high-performance Layer 3 all-optical Gigabit Ethernet switch designed for enterprise campus networks and high-density access scenarios. It offers 48 GE SFP ports and 4 10GE SFP+ uplink ports, providing flexible deployment options. By leveraging Huawei's unified software platform, CloudEngine S5755-H series creates a. Huawei's comprehensive portfolio of products and solutions enables you to realize smooth digital transformation and rapid growth of virtualization, Big Data, and cloud services.


PON & FTTH Insights