Specifications

Clarifications, Known Behaviors, and Problems
ExtremeWare v6.2.1 Release Notes Page 27
Minimum bandwidth settings. The minimum bandwidth percentage settings determine the reserved
port bandwidth available to each queue. Use the following table to determine the actual reserved
bandwidth associated with each setting. If the reserved percentage bandwidth configured does not
match one of the settings listed below, it will be rounded up to the next setting. If the actual bandwidth
utilized is below the minimum bandwidth within a queue, it is available for usage by other queues on
that physical port.
QoS Profile minimum Bandwidth should not exceed 90% totals
The sum of the minimum bandwidth values for the applied QoS profiles should be kept to less than
90% to avoid any incidental starving of traffic. If the minimum bandwidth settings exceed 90% it is
possible under a sustained situation of over-subscription, that a lower priority queue could become
“starved” and not transmit traffic (4735).
Access Lists on BlackDiamond I/O modules
Currently, access lists function only on i-series I/O modules and do not function on the G4X, G6X, F32T
and F32F I/O modules.
Access Lists Using the IP Deny Any Rule
When using an access control list with an IP deny any rule, all ICMP traffic will be blocked within a
VLAN (Layer 2). If using an access list with an IP deny any rule across VLANs (Layer 3), ICMP traffic
will not be blocked.
Min BW
setting (%)
Min
Bandwidth
@ 10Mbps
Min
Bandwidth@
100Mbps
Min
Bandwidth@
1000Mbps
4% 420 Kbps 4.2 Mbps 42 Mbps
6% 570 Kbps 5.7 Mbps 57 Mbps
8% 750 Kbps 7.5 Mbps 75 Mbps
9% 930 Kbps 9.3 Mbps 93 Mbps
10% 1 Mbps 10 Mbps 100 Mbps
20% 1.87 Mbps 18.7 Mbps 187 Mbps
25% 2.63 Mbps 26.3 Mbps 263 Mbps
35% 3.4 Mbps 34 Mbps 340 Mbps
50% 4.9 Mbps 49 Mbps 490 Mbps
60% 6.3 Mbps 63 Mbps 630 Mbps
80% 7.9 Mbps 79 Mbps 790 Mbps
89% 9.4 Mbps 94 Mbps 940 Mbps