Znyx Networks bh5700 - Manual (Page 284)

Packets are first counted against the reserved space for a queue. When that space is occupied,
additional memory is used from the dynamic memory pool until the dynamic pool usage limit for
the port is reached. Any additional packets received for the queue on this port are dropped.
Metering and Scheduling
-r <list of bandwidth guarantees in Kbps for each cos queue> [
-t <list of burst sizes in Kbytes>]
[<port-list>]
Sets up minimum rate meters for each cos queue. All queues which have not exceeded their
minimum transmission rate are scheduled before the other queues.
-l <list of bandwidth limits in Kbps for each queue> [ -t
<list of burst sizes in Kbytes>] [<port-list>]
Sets up maximum rate meters for each cos queue. Queues which have exceeded their
maximum transmission rate will not be scheduled.
-k PRIO | RR | WRR | DRR [<port list>]
Selects the scheduler mode for the ports listed:
PRIO – strict priority, cos queue 7 is highest priority, queue 0 is lowest
RR – Round robin, a single packet is scheduled from each backlogged COS queue.
WRR – Weighted round robin, a configurable number of packets are scheduled from each queue
before moving on to the next.
DRR – Deficit Round Robin, packets are scheduled from a backlogged queue until the configured
number of bytes for that queue have been sent.
-w <queue weight list> [<port list>]
Provides the weights for WRR and DRR scheduling. For WRR, the weights are the number of
packets, scaled such that all weights are between 1 and 15. For DRR, the weights are the
number of bytes, with a range of 10KB to 160 MB of data.
-g <max Kbps>,<burst size in KBytes> [<port list>]
Sets a maximum bandwidth meter for all packets transmitted from a port.
The guaranteed and maximum rate meters influence the four scheduling modes. First, those
queues which have not met their guaranteed rate and have packets to send are serviced according
to the scheduling mode. Then those queues which have not met their maximum rate and have
packets to send are serviced. If all queues have met their maximum rate, or the maximum
bandwidth for the port has been reached, no packets are sent. Each of the meters is implemented
as a separate leaky bucket.
Queries of the Current Settings
Ethernet Switch Blade User's Guide release 3.2.2j page 284