xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
DGS-3400:4#show bandwidth_control 1-10
Command: show bandwidth_control 1-10
Bandwidth Control Table
Port RX Rate (64Kbit/sec) TX_Rate (64Kbit/sec)
---- ------------------------ ----------------------
1 no_limit 10
2 no_limit 10
3 no_limit 10
4 no_limit 10
5 no_limit 10
6 no_limit 10
7 no_limit 10
8 no_limit 10
9 no_limit 10
10 no_limit 10
DGS-3400:4#
config scheduling
Purpose Used to configure the traffic scheduling mechanism for each COS queue.
Syntax
config scheduling <class_id 0-6> {max_packet <value 0-15>}
Description The Switch contains 8 hardware priority queues, one of which is internal
and unconfigurable. Incoming packets must be mapped to one of these
seven queues. This command is used to specify the rotation by which
these seven hardware priority queues are emptied.
The Switch’s default (if the config scheduling command is not used, or if
the config scheduling command is entered with the max_packet set to
0) is to empty the hardware priority queues in order − from the highest
priority queue (hardware queue 6) to the lowest priority queue (hardware
queue 0). Each hardware queue will transmit all of the packets in its buffer
before allowing the next lower priority queue to transmit its packets. When
the lowest hardware priority queue has finished transmitting all of its
packets, the highest hardware priority queue can again transmit any
packets it may have received.
The max_packets parameter allows you to specify the maximum number
of packets a given hardware priority queue can transmit before allowing
the next lowest hardware priority queue to begin transmitting its packets.
A value between 0 and 15 can be specified. For example, if a value of 3 is
specified, then the highest hardware priority queue (number 6) will be
allowed to transmit 3 packets − then the next lowest hardware priority
queue (number 5) will be allowed to transmit 3 packets, and so on, until all
of the queues have transmitted 3 packets. The process will then repeat.
Parameters
<class_id 0-6> − This specifies to which of the seven hardware priority
queues the config scheduling command will apply. The seven hardware
priority queues are identified by number − from 0 to 6 − with the 0 queue
being the lowest priority.
max_packet <value 0-15> − Specifies the maximum number of packets
the above specified hardware priority queue will be allowed to transmit
before allowing the next lowest priority queue to transmit its packets. `A
value between 0 and 15 can be specified.
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the traffic scheduling mechanism for each queue:
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