Chapter 4. Switched networks

Chapter 4. Switched networks

1. Instructions sent or received

   • The switches provide
     • Quality of service
     • Voice and video data transfer
     • Security

2. Increasing complexity of networks

   • Next-generation networks that are
     • Safe
     • Reliable
     • High-availability

3. Elements of a convergent network

   • Call control
   • Voice messaging
   • Voice messaging
   • Answering machine

4. Cisco Borderless Networks

   • Network architecture, supports a network without borders
     • You can connect
       • With any person
       • Anywhere
       • At any time
       • On any device
       • Safely, reliably, and seamlessly

5. Hierarchy in networks without borders-switched

   • Hierarchy
     • Function of each device in each level
     • It reduces the domains of error at each level
   • Modularity
     • Expansion of the network and integrated services enabling
   • Recoverability
   • Flexibility

6. Layers of access, distribution and core

   • Access layer
     • It represents the perimeter of the network, through which enters or leaves the campus network traffic
   • Distribution layer
     • Provides high availability to the user
   • Core layer
     • It connects several layers of campus network

7. Function of switched networks

   • Quality of service
   • Additional security
   • Compatibility with wireless networks and connectivity technology
   • Compatibility with new technologies, such as IP telephony and mobility services

8. Form factors

   • Considerations for choosing a swithc
     • Cost
     • Port density
     • Power
     • Reliability
     • Scalability
     • Buffers for frames

9. Switching as a general concept in networking and telecommunications technology

   • A device makes decisions taking into account
     • Port of entry
     • Destination address
     • The flow of traffic

10. The switch forwarding methods

    • Switching from storage and shipping
      • Error checking
    • Switching by cutting method
      • Fast forwarding frames
      • Free fragments

11. Collision domains

    • Half-duplex mode

12. Broadcast domains

    • Each device connected to the switch receives a copy of the plot of broadcasting and processes it

13. Relief of congestion in the network

    • Collision domains are deleted

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