Gmb Operating Notes - HP ProCurve 6120G/XG Configuration Manual

Port Traffic Controls
Guaranteed Minimum Bandwidth (GMB)

GMB Operating Notes

Impact of QoS Queue Configuration on GMB commands. Changing
the number of queues affects the GMB commands (interface bandwidth-min
and show bandwidth output) to operate only on the number of queues currently
configured. In addition, when the qos queue-config command is executed, any
previously configured bandwidth-min output settings are removed from the
startup configuration. Refer to Table 12-2 on page 12-12 for the default GMB
percentage allocations per number of queues.
GMB on a Port When the Port is an Active Member of a Trunk. When
a port joins a trunk, it retains its currently configured GMB. Configuration of
GMB on a port is allowed even when it is an active member of a trunk. It is
highly recommended that you configure trunked ports so that they have the
same bandwidth-min configurations.
12-19