36.
FragmentFree switching, as the
name indicates, looks for any
bus activity before forwarding a
frame for any possible
collisions. This collision in
Ethernet happens during the
first 64 bytes. Therefore, the
switch waits for 64 bytes time
before forwarding a frame.
37.
Capacity and delays:
-
At 70% utilization, a WAN
link is considered running at
full capacity.
-
At 40% utilization, an
Ethernet link is considered
running at full capacity.
-
At 80% utilization, a
Token Ring network is considered
running at full capacity.
-
100ms or less should be
the response time when a network
is considered working
satisfactorily.
-
The allowable delay for
Class II repeater is only 92 bit
times. The allowable delay for a
class I repeater is 140 bit
times.
