1 / 10

Networking Concepts

FORE SEC Academy Security Essentials. Networking Concepts. Networking C oncepts Agenda. Chapter 1 : Network Fundamentals Chapter 2 : IP Concepts (I) Chapter 3 : IP Concepts ( II) Chapter 4 : IP Behavior Chapter 5 : Wireless Network Security

durin
Télécharger la présentation

Networking Concepts

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FORESECAcademySecurity Essentials Networking Concepts

  2. Networking Concepts Agenda Chapter 1: Network Fundamentals Chapter 2 : IP Concepts (I) Chapter 3 : IP Concepts (II) Chapter 4 : IP Behavior Chapter 5 : Wireless Network Security Chapter 6 : Physical Security

  3. Network Fundamentals Topics • Topology • Ethernet, Token Ring, FDDI, ATM, 802.11, VOIP, HDLC/SDLC, ISDN, and X.25 • Network Hardware • VLANs • Network Design

  4. Types of Networks • LANS - Local Area Networks • MANS - Metropolitan Area Networks • WANS - Wide Area Networks

  5. Physical Topologies • Defines how systems are connected together - Not the protocols in use • Bus Topology • Ring Topology • Star Topology

  6. Logical Topologies • Independent of physical Topologies • Logical Topologies - Ethernet - Token Ring - Fiber Distributed Data Interface (FDDI) - Asynchronous Transfer Mode (ATM) - High Level Data Link Control (HDLC) - Integrated Services Digital Network (ISDN) - X.25

  7. Ethernet • Ethernet is “baseband” or shared media • Only one station is allowed to be transmitting at any given time within a single collision domain • All stations are required to listen before they transmit • All stations are required to monitor their transmission to check for collisions • CSMA/CD

  8. Token Ring and FDDI • Communication is token-based • Each station condition/amplifies the token as it is passed • Typically, only one token is allowed per ring; however, there can be two (early release) • FDDI adds a second ring for fault tolerance

  9. Asynchronous Transfer Mode (ATM) • Encapsulates common protocols • Uses Virtual Path Identifiers (VPI) to create end-to-end connectivity • ATM uses a fixed cell size (48 bytes) for better Quality of Service (QoS) • Like combining Ethernet and IP

  10. 802.11 • 802.11 standard supports 3 physical layers: - Infrared - Radio Frequency - FHSS-Frequency Hopping Spread Spectrum - DSSS-Direct Sequence Spread Spectrum • Branched into 802.lla, 802.llb, and 802.llg • 802.llb supports up to 11 Mbps at 2.4GHz • 802.lla supports up to 54 Mbps at 5GHz • 802.llg supports up to 54 Mbps at 2.4 GHz (new)

More Related