Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command creates a text description stored in the configuration file for a configuration context.
The description command associates a text string with a configuration context to help identify the context in the configuration file.
The no form of this command removes any description string from the context.
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
Commands in this context configure a network queue policy.
Network queue policies define the egress network queuing for the traffic egressing on the network ports and hybrid ports, and access-uplink ports (in access-uplink mode). Network queue policies define the bandwidth distribution for the various FC traffic egressing on the port. By default, network queue policy defines eight queues and a mapping of FC-to-queue.
default
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command configures a QoS network-queue policy queue.
On 7210 SAS-Mxp and 7210 SAS-T (both network and access-uplink mode), the behavior is as follows.
The queues are created by default (the user has no option to delete them) and the FCs are mapped to these queues as per Table 30. Only one FC is mapped to one queue. Network queue carry both the unicast and multicast traffic and no segregation is done. The queues are scheduled are per the port scheduler policy associated with this port.
On the 7210 SAS-R6 and 7210 SAS-R12, the behavior is as follows.
The queues are created by default (the user has no option to delete them) and the FCs are mapped to queues, see Table 30 for more information. Only one FC can be mapped to one queue. Queue ID 8 is the highest priority and queue ID 1 is the lowest priority. Network queues carry both the unicast and multicast traffic and no segregation is performed.
The hardware port scheduler prioritizes the queue according to the priority for each queue. High priority traffic should be mapped to high priority FCs. Mapping traffic to high priority FCs does not necessarily guarantee high priority treatment, because the scheduler policy can influence the relative priority among the queues. See Schedulers on 7210 SAS-R6 and 7210 SAS-R12 for more information about scheduling behavior and the queue parameters considered by the scheduler.
On 7210 SAS-Sx/S 1/10GE: standalone and standalone-VC, the behavior is as follows.
The queues are created by default (the user has no option to delete them) and the FCs are mapped to these queues as per Table 31. Network queue carry both the unicast and multicast traffic and a separate queue is used for them per FC. In other words, a total of 2 queues are allocated per FC, one queue each for unicast traffic and for multicast traffic. The queues are scheduled are per the port scheduler policy associated with this port.
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command defines the method used by the system to derive the operational CIR and PIR rates when the queue is provisioned in hardware. For the cir and pir parameters, 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 cir closest pir closest
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
This command configures a WRED policy for the specified queue.
The queue management policy is used to specify the queue buffer parameters and queue slope policy parameters.
The no form of this command associates the default SAP egress queue management policy with this queue.
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
This command determines whether the queue operates in strict or weighted mode.The no form of this command reverts the queue mode to the default value.
weighted
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command defines the administrative Peak Information Rate (PIR) and the administrative Committed Information Rate (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 oversubscription 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, and alters the PIR and CIR rates for all queues created on the access ports.
The no form of this command reverts all queues created with the queue-id by association with the QoS policy to the default PIR (100) and CIR parameters (0).
The actual CIR rate is dependent on the queue’s adaptation-rule parameters and the actual hardware where the queue is provisioned.
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
This command configures the weight for the specified policy.
The configured weight determines the proportion of available bandwidth that is given to this queue in comparison to other queues contending for bandwidth at the same priority level.
The no form of this command reverts the weight to the default value.
weight 1
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command copies or overwrites existing network queue QoS policies to another network queue policy ID.
The copy command is a configuration level maintenance tool used to create new policies using existing policies. It also allows bulk modifications to an existing policy with the use of the overwrite keyword.
SR>config>qos# copy network-queue nq1 nq2
MINOR: CLI Destination "nq2" exists - use {overwrite}
SR>config>qos# copy network-queue nq1 nq2 overwrite
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command displays network queue policy information.
The following outputs are examples of network queue policy information, and the associated tables describe the output fields:
Label | Description |
Policy | The policy name that uniquely identifies the policy |
Description | A text string that helps identify the policy’s context in the configuration file |
Associations | Displays the physical port identifier where the network queue policy is applied |
Queue | Displays the queue ID |
CIR | Displays the committed information rate |
PIR | Displays the peak information rate |
CBS | Displays the committed burst size |
FC | Displays FC to queue mapping |
Label | Description |
Policy | The policy name that uniquely identifies the policy |
Description | A text string that helps identify the policy context in the configuration file |
Associations | Displays the physical port identifier where the network queue policy is applied |
Queue | Displays the queue ID |
CIR(%) | Displays the committed information rate |
CIR Adapt Rule | Displays the adaptation rule in use |
PIR(%) | Displays the peak information rate |
PIR Adapt Rule | Displays the adaptation rule in use |
Port | Indicates if the parent scheduler is a port scheduler |
CIR Level | Displays the priority of the queue in the CIR loop |
PIR Weight | Displays the weight of the queue used in the PIR loop |
High Slope | Displays the WRED high-slope parameters |
Low Slope | Displays the WRED low-slope parameters |
Burst Sizes (CBS/MBS) | Displays the configured CBS and MBS value |
Time Avg Factor | Displays the WRED Time Average Factor value in use |
FC and UcastQ | Displays the FC-to-queue association |