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NetStructure™ 480T Routing Switch User Guide
• To display information including QoS information for the port.
show ports info {detail}
Modifying a QoS Policy
If you change the parameters of a QoS profile after a QoS policy
was created (by applying a QoS profile to a traffic grouping), the
timing of the configuration change depends on the traffic grouping
involved. To have a change in QoS profile affect a change in the
QoS policy, these rules apply:
• For destination MAC-based grouping (other than permanent),
clear the MAC FDB using the command
clear fdb. This
command should also be issued after a policy is first formed, as
the policy must be in place before an entry is made in the MAC
FDB. For permanent destination MAC-based grouping, re-apply
the QoS profile to the static FDB entry, as documented. You can
also save and reboot the switch.
• For physical and logical groupings of a source port or VLAN, re-
apply the QoS profile to the source port or VLAN, as
documented. You can also save and reboot the switch.
QoS Profile Buffer
Although the QoS profile buffer can be set to a value greater than
100, the maximum effective setting is 100%.
Maximum QoS Buffer
The maxbuf parameter allows you to set a maximum buffer for each
queue, so that a single queue will not consume all of the un-
allocated buffer space.
The
maxbuf values can be set in kilobit or megabit increments. The
minimum value is zero K and the maximum is 16,384K. The default
value is zero K. Unless you have explicit reasons, do not modify
these parameters. Only unique situations require any non-default
configurations of QoS.