User manual

Chapter 4 - Layer 3 Command Set - IP Networking Qm Command (QoS Configuration)
Alvarion BreezeNET B130/B300 GigE 116 Operational User Manual
QM_PRIO_BUSINESS7 15
QM_PRIO_BUSINESS8 16
Priorities "1" and "2" are additionally processed as "voice". Packets from which the
priority is not clearly defined will be sent via common queue with "Best Effort".
The "qm option" allows automatic prioritization management of data flows in the
device. Command options [-]rtp, [-]dot1p, [-]tos, [-]tcpack and [-]icmp
enable/disable automatic prioritization of real time packets, packet labeled with
IEEE 802.1p priority (below is a compliance scheme of MINT and IEEE 802.1p
priorities), packets labeled with TOS, TCP ACK (acknowledgments) packets,
packets labeled with ICMP. The [no]strict option means that "Strict Priority"
policy is applied to all queues, otherwise (by default) "Weighted Fair Queuing"
policy is used. "Strict Priority" policy is when packets from queue with lower
priority are not processed before queue with higher priority is not empty.
"Weighted Fair Queuing" policy is when even if higher priority queue is not empty
packets from other queues will be processed in a distinct sequence relative to a
higher priority queue. For example, 4 package from queue with priority 1 - 1
package from the queue with priority 2, 8 packages from queue priority 1 - 1
package from the queue with priority 3.
For example, the unit is configured automatically prioritize packets labeled with
IEEE 802.1p priority. The node receives a package labeled with IEEE 802.1p
priority, "6 VO Voice". The node will assign him "QM_PRIO_VOICE" priority and in
accordance with the priorities scheme, this package will be processed before
packets with other priorities.
Table 4-1: Compliance Scheme of MINT and IEEE 802.1p Priorities
MINT IEEE 802.1p
QM_PRIO_BUSINESS8 0 BE Best Effort
no priority 1 BK Background
no priority 2 Spare
QM_PRIO_BUSINESS1 3 EE Excellent Effort
QM_PRIO_QOS3 4 CL Controlled Load
QM_PRIO_VIDEO 5 VI Video
QM_PRIO_VOICE 6 VO Voice
QM_PRIO_NETCRIT 7 NC Network Control