1. Medium
Segment
Node
Segment
Frame
B
C
A D
Broadcast
Broadcast
(carrier detection-sense multiple access with collision)
CSMA/CD
CSMA/CD
access multiple
.
carrier sense
CSMA/CD
Repeater
Thicknet
Bridges

2. Bridge
Bridges
Bridge
Bridge
Bridge
Bridge
Bridge
Bridge
B A
Bridge
Bridge
Bridge
B A
Bridge
Bridge
C
Broadcast
Bridge
B
D C
A
Bridge
D