- Transmission using
circuit switching
- A path (a.k.a.: circuit)
is established at the
at the start
of a communication session:
- Then:
all messages will
travel the same route
- A path (a.k.a.: circuit)
is established at the
at the start
of a communication session:
- Properties of circuit switching:
- Messages
will arrive at
the destination in
the
same ordering
as
transmitted
- Because all messages take the same route the messages cannot overtake one another
- Circuit switching
cannot guarantee
messages will
travel the
best route
all the time.
- Because the best route can
change over time....
Circuit switching does not adapt to future changes in the network conditions
- Because the best route can
change over time....
- Messages
will arrive at
the destination in
the
same ordering
as
transmitted