Cos Commands - D-Link DES-1228 Reference Manual

The DES-1228/ME supports 802.1p priority queuing. The Switch has four priority queues. These priority queues are numbered
from 3 (Class 3) — the highest priority queue — to 0 (Class 0) — the lowest priority queue. The eight priority tags specified in
IEEE 802.1p (p0 to p7) are mapped to the Switch's priority queues as follows:
•
Priority 0 is assigned to the Switch's Q1 queue.
•
Priority 1 is assigned to the Switch's Q0 queue.
•
Priority 2 is assigned to the Switch's Q0 queue.
•
Priority 3 is assigned to the Switch's Q1 queue.
•
Priority 4 is assigned to the Switch's Q2 queue.
•
Priority 5 is assigned to the Switch's Q2 queue.
•
Priority 6 is assigned to the Switch's Q3 queue.
•
Priority 7 is assigned to the Switch's Q3 queue.
Priority scheduling is implemented by the priority queues stated above. The Switch will empty the four hardware priority queues
in order, beginning with the highest priority queue, 3, to the lowest priority queue, 0. Each hardware queue will transmit all of the
packets in its buffer before permitting the next lower priority to transmit its packets. When the lowest hardware priority queue has
finished transmitting all of its packets, the highest hardware priority queue will begin transmitting any packets it may have
received.
The commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.
Command
config bandwidth_control
show bandwidth_control
config scheduling
config scheduling_mechanism
show scheduling
show scheduling_mechanism
config 802.1p user_priority
show 802.1p user_priority
config 802.1p default_priority
show 802.1p default_priority
config cos mapping port
show cos mapping
config cos port_mapping
show cos port_mapping
config cos mac_mapping
show cos mac_mapping
config cos tos value
show cos tos
config dscp_mapping
show dscp_mapping
DES-1228/ME Layer 2 Metro Ethernet Switch CLI Reference Manual
Parameters
<portlist> {rx_rate [ no_limit | <value 64-1024000>] | tx_rate [ no_limit | <value
64-1024000>]}(1)
<portlist>
<class_id 0-3> {weight <value 1-55>}
[strict | weight_fair]
<priority 0-7> <class_id 0-3>
[<portlist> | all] <priority 0-7>
<portlist>
[<portlist> | all] [none |{port_mapping | ethernet [802.1p | mac_mapping] | ip [tos
| dscp]}(1)
{port <portlist> }
class [ 0 | 3 ] port [<portlist> | all]
{port <portlist> }
destination_addr <macaddr> [class <class_id 0-3>]
{destination_addr < macaddr > }
<value 0-7> [class <class_id 0-3>]
{value <value 0-7>}
dscp_value <value 0-63> [class <class_id 0-3>]
{dscp_value <value 0-63> }
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O OMMANDS