Cnet cn40bc Guia De Informação

two computers that want to send messages at the same time.  Token Ring is specified by 
IEEE802.5 standard. 

 

ARCNET is a local area network technology that uses a token-bus scheme for managing line 
sharing among the workstations and other devices connected on the LAN.

 

 
A Protocol is the language the nodes on a network use to communicate with each other. 

 
Hubs, Switches, Bridges and Routers 

 
HUB is a passive network device (physical layer device) that allows network nodes to 
communicate with each other.  The packets received on each port will be broadcasted to 
all ports on the hub.  In hubs the bandwidth is shared between all connected devices. 

 
Switch is a network device (layer II) that provides dedicated connections for network 
nodes. Unlike hubs that broadcast packets to all ports, switches provide dedicated 
bandwidth between source and destination ports. 

Bridges are network devices (Layer II) that can be used to segment LANs and are used to 
provide more control on the network traffic.   

  

 
Routers are network devices (layer III) that are used for connecting different networks 
and are responsible for routing packets from source to destination based on their routing 
table. 

 
Network Interface Card. 

 
MAC address is a unique 6byte number that is burned into each card when it is 
manufactured.  

 
Client, adapter and protocol are the three components needed to setup a network between 
two computers.