45
Port configuration
Figure 3-56
Select mode.
Step 3
Strict Priority
. The priority for packet passing egress port of switch depends on the
CoS value in
Port Classification
.
2–8 Queues Weighted
. When congestion occurs, the priority for packet passing egress
port of switch depends on the proportion of total rate.
For example, select
Scheduler Mode
as
2 Queues
Weighted
. The max speed limit of port 1
and port 2 is 500 kbps. When congestion occurs, 50% ingress port packet will pass the egress
port. See the following for the configuration:
1)
Select
Scheduler Mode
as
2 Queues Weighted
. See Figure 3-57.
2)
In
Ingress Queue Shaper
, set the
Rate
of
Q0
and
Q1
to be 500 kbps, and
Rate-type
to
be Line.
3)
In
Egress Queue Shaper
, set the
Rate
to be 500 kbps, and
Rate-type
to be
Line
.
When congestion occurs and the speed of the two ports is 400 kbps, the speed passing
the egress port is 250 kbps.