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Page 581 / 757 Scroll up to view Page 576 - 580
xStack
®
DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
577
DGS-3627:admin# show 802.1p default_priority 1:1-1:10
Command: show 802.1p default_priority 1:1-1:10
Port
Priority
Effective Priority
----
-----------
------------------
1:1
5
5
1:2
5
5
1:3
5
5
1:4
5
5
1:5
5
5
1:6
5
5
1:7
5
5
1:8
5
5
1:9
5
5
1:10
5
5
DGS-3627:admin#
enable hol_prevention
Purpose
Used to enable HOL prevention.
Syntax
enable hol_prevention
Description
The enable hol_prevention command enables head of line prevention on the Switch.
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To enable HOL prevention on the switch:
DGS-3627:admin# enable hol_prevention
Command: enable hol_prevention
Success.
DGS-3627:admin#
disable hol_prevention
Purpose
Used to disable HOL prevention.
Syntax
disable hol_prevention
Description
The command disables head of line prevention on the Switch.
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To disable HOL prevention on the Switch:
Page 582 / 757
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DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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DGS-3627:admin# disable hol_prevention
Command: disable hol_prevention
Success.
DGS-3627:admin#
show hol_prevention
Purpose
Use to show the HOL prevention state.
Syntax
show hol_prevention
Description
The show hol_prevention command displays the head of line prevention state on the switch.
Parameters
None.
Restrictions
None.
Example usage:
To display the HOL prevention state on the switch:
DGS-3627:admin# show hol_prevention
Command: show hol_prevention
Device HOL Prevention State: Enabled
DGS-3627:admin#
config per_queue bandwidth_control
Purpose
Used to configure the queue bandwidth control for each port.
Syntax
config per_queue bandwidth_control {ports [<portlist> | all ]} <cos_id_list 0-6>
{{min_rate [no_limit | <value 64-10000000>]} max_rate [no_limit | <value 64-
10000000>]}(1)
Description
The config per_queue bandwidth_control command sets the bandwidth control for each
specific queue on specified ports.
min_rate
specifies the minimum guaranteed bandwidth. Specifying no limit for the minimum
rate means that bandwidth will not be guaranteed.
max_rate
limits the bandwidth. When specified, packets transmitted from the queue will not
exceed the specified limit even if extra bandwidth is available.
The specification of min_rate and max_rate are effective regardless of whether the queue is
operating in strict mode or in WRR mode.
Parameters
ports <portlist>
- Specifies a range of ports to be configured.
all
- To set all ports in the system, you may use the “all” parameter. If no parameter is
specified, the system will set all ports.
<cos_id_list 0-6>
- Specifies a list of priority queues. The priority queue number is ranged
from 0 to 6.
min_rate
- Specifies that one of the parameters below (no_limit or 64-10000000) will be
applied to the minimum rate, which the above specified class will be allowed to receive
packets at.
no_limit
- Specifies that there will be no limit on the rate of packets received by the
class specified above.
<value 64-10000000>
- Specifies the packet limit, in Kbps, that the above ports will
be allowed to receive.
Page 583 / 757
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DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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config per_queue bandwidth_control
If the specified rate does not have multiple of minimum granularity, the rate will be adjusted:
Actual rate = (inputted rate/ minimum granularity) * minimal granularity.
max_rate
- Specifies that one of the parameters below (no_limit or 64-10000000) will be
applied to the maximum rate that the class specified above will be allowed to transmit
packets at.
no_limit
- Specifies that there will be no limit on the rate of packets received by the
above specified class.
<value 64-10000000>
- Specifies the packet limit, in Kbps, that the above ports will
be allowed to receive.
If the specified rate does not have multiple of minimum granularity, the rate will be adjusted:
Actual rate = (inputted rate/ minimum granularity) * minimal granularity.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure the minimum rate to be 130 and the maximum rate to be 100000 on CoS bandwidth queue 1 for ports 1:1-
1:10:
DGS-3627:admin# config per_queue bandwidth_control ports 1:1-1:10 1 min_rate 130 max_rate
100000
Command: config per_queue bandwidth_control ports 1:1-1:10 1 min_rate 130 max_rate 100000
Success.
DGS-3627:admin#
show per_queue bandwidth_control
Purpose
Used to display the per queue bandwidth control settings for each port.
Syntax
show per_queue bandwidth_control {<portlist>}
Description
Used to display the per queue bandwidth control settings.
Parameters
portlist
- Specifies the range of ports to be displayed.
If no parameter is specified, the system will display the CoS bandwidth configuration for all
ports.
Restrictions
None.
Example usage:
To display the per queue bandwidth control table for port 1:10:
Page 584 / 757
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DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
580
DGS-3627:admin# show per_queue bandwidth_control 1:10
Command: show per_queue bandwidth_control 1:10
Queue Bandwidth Control Table On Port: 1:10
Queue Min_Rate (64Kbit/sec) Max_Rate (64Kbit/sec)
---- --------------------- ----------------------
0
640 no_limit
1
640 no_limit
2
640 no_limit
3
640 no_limit
4
640 no_limit
5
no_limit
no_limit
6
no_limit
no_limit
DGS-3627:admin#
enable cpu_rx_rate_control
Purpose
Used to set CPU receiving rate as predefined limit.
Syntax
enable cpu_rx_rate_control {<class_id 0-2>}
Description
Used to set CPU receiving rate as predefined limit.
Parameters
<class_id 0-2>
- Specifies which class of service to set. If not specified, all classes in the
range will be set.
Restrictions
Only Administrator users can issue this command.
Example usage:
To set CPU receiving rate as predefined limit:
DGS-3627:admin# enable cpu_rx_rate_control
Command: enable cpu_rx_rate_control
Success.
DGS-3627:admin#
disable cpu_rx_rate_control
Purpose
Used to set CPU receiving rate as no limit.
Syntax
disable cpu_rx_rate_control {<class_id 0-2>}
Description
Used to set CPU receiving rate as no limit.
Parameters
<class_id 0-2>
- Specifies which class of service to set. If not specified, all classes in the
range will be set.
Restrictions
Only Administrator users can issue this command.
Example usage:
To set CPU receiving rate as no limit:
Page 585 / 757
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DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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DGS-3627:admin# disable cpu_rx_rate_control
Command: enable cpu_rx_rate_control
Success.
DGS-3627:admin#
show cpu_rx_rate_control
Purpose
Used to show current settings of CPU receiving rate control.
Syntax
show cpu_rx_rate_control
Description
Used to show current settings of CPU receiving rate control.
Parameters
None.
Restrictions
None.
Example usage:
To show current settings of CPU receiving rate control:
DGS-3627:admin# show cpu_rx_rate_control
Command: show cpu_rx_rate_control
Cos
Rate Control
---
------------
0
Enabled
1
Enabled
2
Enabled
DGS-3627:admin#

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