Allied-telesis AT-8550 Manual de usuario Pagina 114

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Traffic Groupings and Creating a QoS Policy
7-8
Traffic Groupings and Creating a QoS Policy
Once a QoS profile is modified to the desired settings for bandwidth
and priority, you can assign the profile to a particular traffic
grouping. A
traffic grouping
is a classification of traffic that has one or
more attributes in common.
Traffic groupings are separated into the following categories for
discussion:
IP information (the IPQoS groupings)
Destination MAC (MAC QoS groupings)
Packet priority information, such as 802.1p or PACE
Physical/logical configuration (physical source port or VLAN
association)
A QoS profile is assigned to a desired traffic grouping to form a QoS
Policy. In the event that a given packet matches two or more
grouping criteria, there is a predetermined precedence for which
traffic grouping will apply. In general, the more specific traffic
grouping takes precedence. By default, all traffic groupings are
placed in the QoS profile named
qp1
. The supported traffic
groupings and their options by QoS mode are listed in Table 7-2. The
groupings are listed in order of precedence (highest to lowest).
Table 7-2
Traffic Groupings by QoS Mode
Ingress Mode Egress Mode
IPQoS Groupings IPQoS Groupings
IP source
IP destination
TCP/UDP/other port (source or
destination)
IP source
IP destination
TCP/UDP/other port (source or destination)
Destination Address MAC-based
Groupings
Destination Address MAC-based Groupings
Permanent
Permanent
Dynamic
Dynamic
Blackhole
Blackhole
Broadcast/unknown rate limiting
Broadcast/unknown rate limiting
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