Displaying Qos Profile Information; Modifying A Qos Configuration - Extreme Networks ExtremeWare 7.2e Installation And User Manual

port. Data is captured for a specified port and aggregated over all other ports in the system. The data
leaving the QoS monitor port does reflect the aggregate, but it also reflects the original data captured at
the ingress ports. Even if you attempt to change the priority using an access-list, the QoS monitor still
reflects the statistics before the access-list changed the traffic at the egress port.
For example, incoming traffic on a Summit 400-48t is set as follows:
• Port 2 with 802.1p priority set to 0
• Port 4 with 802.1p priority set to 2
• Port 6 with 802.1p priority set to 4
The traffic is designated to exit the switch at port 24.
If we send 100 packets on each of these ports and change the priority to 7 of all 802.1p, the output of the
show qosmonitor statistics
QoS Monitor Egress Queue Summary
Port
==============================================================================
24

Displaying QoS Profile Information

The QoS monitor can also be used to verify the QoS configuration and monitor the use of the QoS
policies that are in place. To display QoS information on the switch, use the following command:
show qosprofile {<qosprofile>} {port <portlist>}
Displayed information includes:
• QoS profile name
• Priority
• A list of all ports to which the QoS profile is applied
• A list of all VLANs to which the QoS profile is applied
Additionally, QoS information can be displayed from the traffic grouping perspective by using one or
more of the following commands:
•
show fdb
•
show switch
•
show vlan

Modifying a QoS Configuration

If you make a change to the parameters of a QoS profile after implementing your configuration, the
timing of the configuration change depends on the traffic grouping involved. The following rules apply:
• For destination MAC-based grouping (other than permanent), clear the MAC FDB using the
command
the configuration must be in place before an entry is made in the MAC FDB. For permanent
ExtremeWare 7.2e Installation and User Guide
command only displays the original statistics.
Q0 Q1
Xmts Xmts
100 0
—Displays destination MAC entries and their QoS profiles.
permanent
—Displays hardware information.
—Displays the QoS profile assignments to the VLAN.
. This command should also be issued after a configuration is implemented, as
clear fdb
Q2 Q3
Xmts Xmts
100 0

Modifying a QoS Configuration

Tuesday Apr 6 17:48:51 2004
Q4 Q5 Q6
Xmts Xmts Xmts
100 0 0
Q7
Xmts
0
121