Allied Telesis AT-8550 - Manual (Page 110)

QoS Profiles
7-4
QoS Profiles
Four default QoS profiles are provided that cannot be deleted. The
default QoS profile names are as follows:
❑ qp1
❑ qp2
❑ qp3
❑ qp4
The default QoS profiles exist in either ingress or egress mode. In
ingress mode, only the default QoS profiles are used. In egress mode,
up to 28 additional custom profiles may be defined, for a total of 32.
You cannot create custom profiles in ingress mode.
The parameters that make up a QoS profile include the following:
❑ Minimum bandwidth—The minimum percentage of link
bandwidth that the traffic requires. The system is required to
provide the minimum amount of bandwidth to the traffic. The
lowest possible value is 0%.
❑ Maximum bandwidth—The maximum percentage of link
bandwidth that the traffic is permitted to use.
❑ Priority—The level of priority used by the switch to service
traffic. Choices include:
— Low
— Normal
— Medium
— High
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
Table 7-1 .
Table 7-1 Default QoS Profile
Profile Name Priority Minimum Bandwidth Maximum Bandwidth
qp1 Low 0% 100%
qp2 Normal 0% 100%
qp3 Medium 0% 100%
qp4 High 0% 100%