Extreme Networks ExtremeWare 7.2e, Installation And User Manual

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Traffic Groupings
ExtremeWare 7.2e Installation and User Guide 119
Once assigned, the rest of the switches in the network prioritize the packet using the characteristics
specified by the QoS profile.
Replacing DiffServ Code Points
An access list can be used to change the DiffServ code point in the packet prior to the packet being
transmitted by the switch. This is done with no impact on switch performance.
To replace the DiffServ code point, you will use an access list to set the new code point value. See “IP
Access Lists (ACLs)” on page 142, for more information on using access lists. Use the
set code-point
parameter of the
create access-list
command to replace the value.
To display the DiffServ configuration, use the following command:
show ports {mgmt | <portlist>} info {detail}
NOTE
The show ports command displays only the default code point mapping.
Physical and Logical Groupings
Two traffic groupings exist in this category:
• Source port
•
VLAN
Source port
A source port traffic grouping implies that any traffic sourced from this physical port uses the indicated
QoS profile when the traffic is transmitted out to any other port. To configure a source port traffic
grouping, use the following command:
configure ports <portlist> qosprofile <qosprofile>
In the following example, all traffic sourced from port 7 uses the QoS profile named qp3 when being
transmitted.
configure ports 7 qosprofile qp3
8-15 Qp2
16-23 Qp3
24-31 Qp4
32-39 Qp5
40-47 Qp6
48-55 Qp7
56-63 Qp8
Table 25: Default Code Point-to-QoS Profile Mapping (Continued)
Code Point QoS Profile