3com 9100 User Manual
QoS Profiles
101
A QoS profile does not alter the behavior of the switch until it is assigned
to a traffic grouping. The settings of the default profiles are shown in
to a traffic grouping. The settings of the default profiles are shown in
.
Modifying a QoS
Profile
You can modify the profile defaults as desired. To modify the parameters
of an existing QoS profile, use the following command:
of an existing QoS profile, use the following command:
config qosprofile <qosname> {minbw <percent>}
{maxbw <percent>} {priority <level>}
The QoS profiles qp1 through qp8 are mapped directly to the eight
hardware queues on every switch port. Any changes to parameters of the
eight pre-defined QoS profiles have the corresponding effect on the
ports. The direct mapping is straight-forward to understand and
configure.
hardware queues on every switch port. Any changes to parameters of the
eight pre-defined QoS profiles have the corresponding effect on the
ports. The direct mapping is straight-forward to understand and
configure.
Queue setting at any instant at a port depends on the QoS profiles
associated with the traffic through that port. The minimum bandwidth is
the sum of all the minimum values of the QoS profiles sharing a queue.
The maximum bandwidth setting is equal to the highest bandwidth
setting of all the profiles that are sharing that queue.
associated with the traffic through that port. The minimum bandwidth is
the sum of all the minimum values of the QoS profiles sharing a queue.
The maximum bandwidth setting is equal to the highest bandwidth
setting of all the profiles that are sharing that queue.
Table 25 Default QoS Profiles
Profile Name
Priority
Minimum Bandwidth Maximum Bandwidth
qp1
Low
0%
100%
qp2
LowHi
0%
100%
qp3
Normal
0%
100%
qp4
NormalHi
0%
100%
qp5
Medium
0%
100%
qp6
MediumHi
0%
100%
qp7
High
0%
100%
qp8
HighHi
0%
100%