Managed s.


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Managed s.

  1. 1. Port configuration and security
  2. 2.  Allows the user to control the speed of each individual port between 100mbps, 10mbps, auto and disable.  Disable allows the user to disconnect the device, connected to that port, from that network.  It also allows the user to control the priority of the ports.
  3. 3.  Half duplex – is where two devices can send and receive data but only one at a time.  Full duplex – is where both devices can transmit and receive data at the same time and any time.  Auto negotiation - is where both devices will communicated to each other and then decide which settings are best for them.
  4. 4.  (DVLAN) doubleVLAN allows traffic to pass though one domain to another though the metro core, this allows users to connect toWANs like the Internet.  PrivateVLAN – this allows layer two isolation for ports with same domain.  DHCP snooping is a feature that acts between hosts and DHCP servers checking if the data being received is harmful to the server and then creating a database where it contains the IP address from harmful data.
  5. 5.  Bridge protocol data unit (BPDU) – is a message sent across the network containing information like address and port configuration. Also while be sent they detect if there are any loops in the networks.  Spanning tree root guard (STRG) – prevents new on unauthorised devices on a network to become a main/root device for a VLAN