HP 5400ZL - Manual (Page 317)

Quality of Service: Managing Bandwidth More Effectively
QoS Queue Configuration
QoS Queue Configuration
QoS queue configuration allows you to reduce the number of outbound queues
that all switch ports use to buffer packets for 802.1p user priorities. By default:
■ Series 3500yl switches use four queues.
■ Series 5400zl switches and the Series 8212zl switch use eight queues.
You can change the default QoS queue configuration to four-queue mode or
two-queue mode to increase the available bandwidth per queue.
Use the following commands to change the number of queues per port and
display the current priority queue configuration on the switch.
Syntax: qos queue-config < 2-queues | 4-queues | 8-queues >
Configures the number of outbound priority queues for all
ports on the switch using one of the following options:
2-queues, 4-queues, or 8-queues.
(Default: 8-queues)
Caution: This command will execute a “write memory”
followed by an immediate reboot, replacing the Startup con­
figuration with the content of the current Running configu­
ration.
The new configuration will:
1. Remove any previously configured “bandwidth-min
output” settings
2. Set the new number of outbound port queues
If you select anything but “yes” for this operation, the
operation is aborted and a message stating “Operation
aborted” appears.
show qos queue config
Displays the current QoS queue configuration.
Mapping of Outbound Port Queues. The mapping of 802.1p priorities to
outbound port queues is shown in Table 6-13.
6-95