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Intel
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NetStructure™ 480T Routing Switch User Guide
Modifying a QoS Profile
You can modify the default profiles as desired. To modify the
parameters of an existing QoS profile, use this command:
configure qosprofile <qosprofile> {minbw <percent>}
{maxbw <percent>} {priority <level>} {minbuf
<percent>} {maxBuf <percent>} [K | M]
Traffic Groupings and Creating a
QoS Policy
Use full-duplex links when
deploying policy-based
QoS. Half-duplex operation
on links can make delivery
of guaranteed minimum
bandwidth impossible.
After a QoS profile is modified for bandwidth and priority, you
assign the profile to a particular traffic grouping. A QoS profile is
assigned to a specific traffic grouping to create a QoS policy. A
traffic grouping is a classification of traffic that has one or more
attributes in common.
Traffic groupings can be separated into these categories:
• IP-based information, such as IP source/destination and TCP/
UDP port information
• Destination MAC (MAC QoS groupings)
• Explicit packet class of service information, such as 802.1p or
DiffServ (IP TOS)
• Physical/logical configuration (physical source port or VLAN
association)
If 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
Qp1.The supported traffic groupings and their options by QoS
mode are listed in Table 10.5. The groupings are listed in order of
precedence (highest to lowest).
Table 10.5: Traffic Groupings by QoS Mode
IP Information (Access Lists) Groupings
• Access list precedence determined by user configuration
• IP destination