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
This command enables the context to configure a network queue policy. Network queue policies on the Ethernet port define network egress queuing.
default
Supported on all 7210 SAS platforms as described in this document, including those operating in access-uplink mode
This command enables the context to configure a QoS network-queue policy queue.
On 7210 SAS-M (both network and access-uplink mode), 7210 SAS-Mxp, and 7210 SAS-T (both network and access-uplink mode) the behavior is as follows.
The FCs are mapped to these queues as per Forwarding Class to Queue-ID Map for 7210 SAS-M, 7210 SAS-T, and 7210 SAS-Mxp. 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 7210 SAS-Sx/S 1/10GE: standalone and standalone-VC, the behavior is as follows.
The FCs are mapped to these queues as per Forwarding Class-to-Queue ID Map for 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE. 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
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.
weighted
strict — If a queue is configured in strict mode, the scheduler schedules the queue in order of their priority in the 2 passes, the CIR loop and the PIR loop.
weighted — If a queue is configured in weighted mode, then the scheduler examines these queues in 2 passes - CIR loop and a PIR loop. In the CIR loop, it distributes the available bandwidth to all the strict and then weighted queues in round-robin up to the configured CIR rate. It examines the weighted queues in the PIR loop, after examining all the strict queues and distributes the available bandwidth, if any, in the proportion of the configured weights.
7210 SAS-Mxp
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.
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
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.
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.
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 output is an example network queue policy information, and Table 52 describes 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 |