(carrier sense multipl
acces/collision Detection).
When
a host want to place data on the wire, it will "sense" the wire to find
whether there is a single already on the wire. If there is traffic
already in the host will wait and if their is no traffic, it will place
the data in the medium.
TOKEN PASSING
In
CSMA/CD and CSMA/CA the chance of collision are there. As the number of
host in the network increase, the chance of collision also will become
more. In token passing , when a host want to transmit data.
Workstation,
the workstation cane take the token from the network, fill it with
data mark the token as being used and place the token back to the
network.
re, it will "sense" the wire to find whether there is a single already on the wire. If there is traffic already in the host will wait and if their is no traffic, it will place the data in the medium.In CSMA/CD( carrier sense multipl acces/collision Detection)Access method , the every
host equal to the to the wire and can place data on the wire when the
wire is free from traffic.
CSMA/CA(carrier sense multiple access/collision
In CSMA/CA Before a host sends real data on the wire it will "sense" the wire to check if the wire is free. If the wire is free. It will send a piece of "dummy" data on the wire to see whether it collides with any other data. If it dose not collide, the host will assume that the real data also will not collide.
