adaptation-rule [cir adaptation-rule] [pir adaptation-rule]
no adaptation-rule
config>qos>access-egress>queue
Supported on all 7210 SAS platforms as described in this document
This command defines the method used by the system to derive the operational CIR and PIR settings when the queue is provisioned in hardware. For the CIR and PIR parameters individually, the system attempts to find the best operational rate depending on the defined constraint.
The no form of this command removes any explicitly defined constraints used to derive the operational CIR and PIR created by the application of the policy. When a specific adaptation-rule is removed, the default constraints for cir and pir apply.
adaptation-rule pir closest cir closest
Specifies the adaptation rule and defines the constraints enforced when adapting the CIR rate defined using the queue queue-id rate command. The cir parameter requires a qualifier that defines the constraint used to derive the operational CIR rate for the queue. When the cir parameter is not specified, the default constraint applies. The max (maximum), min (minimum), and closest qualifiers are mutually exclusive.
Specifies the adaptation rule and defines the constraints enforced when adapting the PIR rate defined using the queue queue-id rate command. The pir parameter requires a qualifier that defines the constraint used when deriving the operational PIR rate for the queue. When the pir command is not specified, the default constraint applies. The max (maximum), min (minimum), and closest qualifiers are mutually exclusive.
rate cir cir-rate [pir pir-rate]
no rate
config>qos>access-egress>queue
Supported on all 7210 SAS platforms as described in this document
This command defines the administrative PIR and CIR parameters for the queue. The PIR defines the maximum rate that the queue can transmit packets through the port. Defining a PIR does not necessarily guarantee that the queue can transmit at the intended rate. The actual rate sustained by the queue can be limited by over subscription factors or available egress bandwidth. The CIR defines the rate at which the system prioritizes the queue over other queues competing for the same bandwidth.
The rate command can be executed at any time, altering the PIR and CIR rates for all queues created on the access ports.
The no form of this command reverts all queues created using the queue-id by association with the QoS policy to the default PIR and CIR parameters (max, 0).
Specifies that the default administrative CIR used by the queue is overridden. When the rate command is executed, a valid CIR setting must be explicitly defined. When the rate command has not been executed or the cir parameter is not explicitly specified, the default CIR (0) is assumed. Fractional values are not allowed and must be specified as a positive integer.
Specifies the administrative PIR rate, in kilobits, for the queue. When the rate command is executed, a PIR setting is optional. When the rate command has not been executed, the default PIR of max is assumed. Fractional values are not allowed and must be specified as a positive integer.
The actual PIR rate is dependent on the queue’s adaptation-rule parameters and the actual hardware where the queue is provisioned.
scope {exclusive | template}
no scope
config>qos>access-egress
Supported on all 7210 SAS platforms as described in this document
This command configures the scope as exclusive or template. The policy’s scope cannot be changed if the policy is applied to multiple ports.
The no form of this command sets the scope of the policy to the default of template.
template
Specifies that the policy can only be applied to one port. If a policy with an exclusive scope is assigned to a second interface, an error message is generated. If the policy is removed from the exclusive interface, it becomes available for assignment to another exclusive interface. The system default policies cannot be put into the exclusive scope. An error occurs if scope exclusive is executed in the default access-egress policy (policy-id 1).
Specifies that the policy can be applied to multiple ports on the router.
access-egress [policy-id] [association | detail]
show>qos
Supported on all 7210 SAS platforms as described in this document
This command displays access-egress QoS policy information.
Displays the policy ID of the access-egress policy.
Displays associations related to the specified access-egress policy.
Displays detailed policy information including the policy associations.
The following output is an example of access-egress QoS policy information, and Table: Access-egress labels and descriptions describes the output fields.
Sample outputA:Dut-A>show>qos# access-egress
===============================================================================
Access Egress Policies
===============================================================================
Policy-Id Scope Description
-------------------------------------------------------------------------------
1 Template Default Access egress QoS policy.
===============================================================================
A:Dut-A>show>qos#
A:Dut-A>show>qos# access-egress 1 detail
===============================================================================
QoS Access Egress
===============================================================================
-------------------------------------------------------------------------------
Policy-id : 1 Scope : Template
Remark : False Remark Pol Id: 2
Description : Default Access egress QoS policy.
-------------------------------------------------------------------------------
Queue Rates and Rules
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId CIR CIR Adpt Rule PIR PIR Adpt Rule
-------------------------------------------------------------------------------
Queue1 0 closest max closest
Queue2 0 closest max closest
Queue3 0 closest max closest
Queue4 0 closest max closest
Queue5 0 closest max closest
Queue6 0 closest max closest
Queue7 0 closest max closest
Queue8 0 closest max closest
-------------------------------------------------------------------------------
Queue Mode and Weight Details
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId Mode Weight
-------------------------------------------------------------------------------
Queue1 weighted 1
Queue2 weighted 1
Queue3 weighted 1
Queue4 weighted 1
Queue5 weighted 1
Queue6 weighted 1
Queue7 weighted 1
Queue8 weighted 1
-------------------------------------------------------------------------------
High Slope
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId State Start-Avg(%) Max-Avg(%) Max-Prob(%)
-------------------------------------------------------------------------------
Queue1 Down 70 90 75
Queue2 Down 70 90 75
Queue3 Down 70 90 75
Queue4 Down 70 90 75
Queue5 Down 70 90 75
Queue6 Down 70 90 75
Queue7 Down 70 90 75
Queue8 Down 70 90 75
-------------------------------------------------------------------------------
Low Slope
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId State Start-Avg(%) Max-Avg(%) Max-Prob(%)
-------------------------------------------------------------------------------
Queue1 Down 50 75 75
Queue2 Down 50 75 75
Queue3 Down 50 75 75
Queue4 Down 50 75 75
Queue5 Down 50 75 75
Queue6 Down 50 75 75
Queue7 Down 50 75 75
Queue8 Down 50 75 75
-------------------------------------------------------------------------------
Burst Sizes and Time Average Factor
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId CBS MBS Time Average Factor Queue-Mgmt
-------------------------------------------------------------------------------
Queue1 def def 7 default
Queue2 def def 7 default
Queue3 def def 7 default
Queue4 def def 7 default
Queue5 def def 7 default
Queue6 def def 7 default
Queue7 def def 7 default
Queue8 def def 7 default
-------------------------------------------------------------------------------
Associations
-------------------------------------------------------------------------------
===============================================================================
A:Dut-A>show>qos#
A:Dut-A>show>qos#
|
Label |
Description |
|---|---|
|
Scope |
Exclusive — Specifies that this policy can be applied only to a single access-egress port |
|
Template — Specifies that this policy can be applied to multiple access ports on the router |
|
|
Description |
A text string that helps identify the policy context in the configuration file |
|
Queue Rates and Rules |
|
|
QueueId |
Displays the queue identifier associated with the SAP-egress QoS policy |
|
CIR |
Specifies the administrative CIR parameters for the queue. The CIR defines the rate at which the system prioritizes the queue over other queues competing for the same bandwidth |
|
CIR Adpt Rule |
min — The operational CIR for the queue is equal to or greater than the administrative rate specified using the rate command |
|
max — The operational CIR for the queue is less than or equal to the administrative rate specified using the rate command |
|
|
closest — The operational CIR for the queue is the rate closest to the rate specified using the rate command without exceeding the operational PIR |
|
|
PIR |
Specifies the administrative PIR parameters for the queue. The PIR defines the maximum rate that the queue can transmit packets through the access port |
|
PIR Adpt Rule |
min — The operational PIR for the queue is equal to or greater than the administrative rate specified using the rate command |
|
max — The operational PIR for the queue is less than or equal to the administrative rate specified using the rate command |
|
|
closest — The operational PIR for the queue is the rate closest to the rate specified using the rate command |
|
|
High Slope/Low slope |
|
|
QueueId |
Displays the queue identifier associated with the SAP-egress QoS policy |
|
State |
Displays the state of the queue The state of the queue can be either ‟Up” or ‟Down” |
|
Start Avg |
Specifies the low priority or high priority RED slope position for the shared buffer average utilization value, where the packet discard probability starts to increase above zero |
|
Max Avg |
Specifies the percentage of the shared buffer space for the buffer pool, at which point the drop probability becomes ‟1” This parameter is expressed as a decimal integer |
|
Max Prob |
Specifies the high priority RED slope position for the maximum non-one packet discard probability value before the packet discard probability rises directly to one |
|
Burst Sizes and Time Average Factor |
|
|
QueueId |
Displays the queue identifier associated with the SAP-egress QoS policy |
|
CBS |
Displays the configured CBS value |
|
MBS |
Displays the configured MBS value |
|
Time Average Factor |
Displays the value of the time average factor in use |