More Related Content


Chapter five.pptx

  1. Chapter five Networking devices Abdi Aziz Hussein Ahmed Copy right @Somali network classroom
  2. Definition of networking devices  Network devices, or networking hardware, are physical devices that are required for communication and interaction between hardware on a computer network.
  3. Types of networking devices  Here is the common network device list: 1. Hub 2. Repeater 3. Bridge 4. Switch 5. Access-Point 6. Router 7. Network Interface Card 8. Multi-layer switch 9. Firewall 10. Intrusion Detection System 11. Intrusion Prevention System 12. server
  4. 1. Hub  Properties of Hub devices :  hub is the simplest in the family of network connecting devices because it connects LAN  Hub operate physical layer in OSI.  Hub have one collision domain  Hub have one broadcast domain  Hubs do not perform packet filtering or addressing functions  There are two types of hubs: simple and multiple port
  5. 2. Repeater  Properties of repeater  A repeater is an electronic device that amplifies the signal it receives.  When the received signal
  6. 3. bridge  Properties of bridge:  . The basic role of bridges in network architecture is storing and forwarding frames between the different segments that the bridge connects.  Bridge operate in data-link layer in OSI.
  7. 4. Switch  Properties of switch  Switches generally have a more intelligent role than hubs.  Switch operate data-link layer in OSI.  Switch more than interfaces than hub device  Switch has many collision domains (each port have one collision domain ).  Switch has one broadcast domain.  Switch perform frame filtering using mac-address table.  There are two types of switch: normal switch and layer 3 switch
  8. 5. Access-Point  Properties of access-Point  AP generally connected wireless LAN.  AP operate data-link layer in OSI model.  To connect to a wireless AP, you need a service set identifier (SSID) name.
  9. 6. Router  Properties of router  Router generally connect two or more networks .  Router operate network layer in OSI.  Routers are your first line of defense.  Router perform packet filtering using IP routing table
  10. 7. Network Interface Card  Properties of NIC  A network interface controller is a computer hardware component that connects a computer to a computer network.
  11. 8. Multi layer switch  Properties Of multi layer switch:  A multilayer switch is a computer networking device that switches on OSI layer 2 like an ordinary network switch and provides extra functions on higher OSI layers (layer three like router).
  12. 9. firewall  Properties of firewall :  In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.  A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet.
  13. 10. Intrusion Detection System  Properties of IDS :  An intrusion detection system is a device or software application that monitors a network or systems for malicious activity or policy violations.
  14. 11. Intrusion prevention System  Properties of IPS :  An Intrusion Prevention System is a device or software application that monitors and control a network or systems for malicious activity or policy violations.
  15. 12.serve  Properties of server  A server is a computer program or device that provides a service to another computer program