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TOPIC 1 : HUB AND BRIDGE - Coggle Diagram

- - - - extend physical network
        
        reduce network traffic with minor segmentation
        
        creates separate collisions
        
        reduce collisions
        
        connect different architecture
    - - slower that repeaters due to filtering
        
        do not filter broadcasts
        
        more expensive than repeaters
  - - - As a PHYSICAL device, it regenerate signal it received
      - As a DATALINK device, Bridge can check PHYSICAL/MAC address (source and destination) contained in frame
  - - - Otherwise, forward to other segment
    - - Picture too smol cannot brain
  - - - WI-FI BRIDGE
      - POWER LINE BRIDGE
  - - - Contains one entry per station of network to
        which bridge is connected
    - - used by bridge to allow only those packets
        destined to the remote network.
    - - process of passing a packet from one
        network to another.
    - - process by which the bridge learns how to
        reach stations on the internetwork.
  - - - Enable connection of two different LAN segment by bridging a wireless connection between them
        
        works much like a wired network bridge
  - - - Connect multiple network and operate transparently to decide on frame by frame
        
        Function serves as the basis for network switches
    - - Build a table of MAC addresses as
        frames arrive
        
        Ethernet networks use transparent
        bridge
        
        Transparent Bridge function are filtering frames, forwarding and
        blocking
    - - Used in Token Ring Network
        
        Each station determine route for next destination
        
        Address of these bridges include in frames
        
        Frame contain source and destination address
        
        Frame also contain bridge address
  - - - Device that allow data to travel through already existing power lines within a bulding
        
        A bridge plugged into an AC outlet is connected to the router using a network cable
  - - - find devices using Media Access Control(MAC) address
        
        they can't find internet protocol address
  - - - routers are explicitly addressed
      - bridges are
    - - routers can handle failures in link and another router
      - bridge use only source and destination MAc address
    - - routers forward a message to specific destination
      - bridges forward a message to an outgoing network
  - - - capable of establishing a bridge between two network as well as routing some messages form the bridge network to other network
  - - - a possible future holds network zones that communicate with each other on well defined paths
        
        security will be essential part of every member in each zone down to the single dient
- - - - Use physical processing to forward data.
      - It will wasted bandwidth.
      - Security risks because all port receives the signal.
    - - Collision may occurs during data transmissions.
  - - - The data in this layer receives repeatedly and no knowledge that has being send to the hub
  - - - Hub lacks the function of collision domain and retransmission of packets.
    - - Hubs cannot support networks that are large in size such as token ring.
    - - Since all attachment are received in post, hubs cannot reduce network traffic.
  - - - Can clean, boost, and relay the signal along with the network.
    - - Relay signal onto the networks without cleaning and boosting them.
    - - Work like active hubs and include remote management capabilities.
  - - - This makes them inefficient devices and can create a performance on busy networks