Minimum Guaranteed Bandwidth With 8 Queues - HP 3500 Series Advanced Traffic Management Manual

N o t e
HP Device
HP 24-port 10/100/1000 PoE+v2 zl Module
HP 20-port 10/100/1000 PoE+ / 4-port SFP v2 zl Module
HP 20-port 10/100/1000 PoE+ / 2-port 10-GbE SFP+ v2 zl Module
HP 24-port SFP v2 zl Module
HP 8-port 10-GbE SFP+ v2 zl Module
HP 24-port 10/100 PoE+ v2 zl Module
HP 20-port Gig-T / 2-port 10-GbE SFP+ v2 zl Module
HP 20-port Gig-T / 4-port SFP v2 zl Module
HP 24-port Gig-T v2 zl Module
HP 12-port Gig-T / 12-port SFP v2 zl Module
For more information on configuring GMB, refer to the chapter titled "Port
Traffic Controls" in the Management and Configuration Guide.

Minimum Guaranteed Bandwidth with 8 Queues

When 10 Mbps ports on an 8200zl or 5400zl switch are configured in QoS for
eight outbound queues (the default), and the guaranteed minimum bandwidth
is set for 5 Mbps or less for a given queue, then packets in the lower-priority
queues may be discarded on ports that are oversubscribed for extended
periods of time. If the oversubscription cannot be corrected, HP recommends
reconfiguring the switch to operate with four outbound queues. The command
to do this is:
HPswitch(config)# qos queue-config 4-queues
This issue applies to 8200zl and 5400zl switch operating with any of the
following modules installed.
Quality of Service: Managing Bandwidth More Effectively
Product Number
J9534A
J9535A
J9536A
J9537A
J9538A
J9547A
J9548A
J9549A
J9550A
J9637A
QoS Queue Configuration
Minimum Supported
Software Version
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
K.15.02.0004
5-99