12.7. Slope QoS Policy Command Reference

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.

This command enables the context to configure a QoS slope policy.

This command enables the context to configure the high-priority, low-priority, and non-tcp slope parameters per queue.

This command enables the context to define the high priority Random Early Detection (RED) slope graph. A high priority RED slope is used managing access to the shared portion of the buffer pool for high priority or in-profile packets that ingress of non-ring ports and egress out of non-ring ports.

The high-slope parameters can be changed at any time and the affected buffer pool high priority RED slopes will be adjusted appropriately.

The no form of this command reverts the high slope configuration commands to the default values. If the commands within high-slope are set to the default parameters, the high-slope mode will not appear in save config and show config output unless the detail parameter is present.

This command enables the context to define the low priority RED slope graph. A low priority ring RED slope is used managing access to the shared portion of the buffer pool for low priority or out-of-profile packets that are received on non-ring ports and egress out of non-ring ports.

The low-slope parameters can be changed at any time and the affected buffer pool high priority RED slopes will be adjusted appropriately.

The no form of this command reverts the low slope configuration commands to the default values. If the commands within low-slope are set to the default parameters, the low-slope mode will not appear in save config and show config output unless the detail parameter is present.

This command enables the context to define the high priority RED slope graph. A high priority ring RED slope is used managing access to the shared portion of the buffer pool for high priority or in-profile packets that ingress of ring ports and egress out of ring ports.

The high-slope-ring parameters can be changed at any time and the affected buffer pool high priority RED slopes will be adjusted appropriately.

The no form of this command reverts the high slope configuration commands to the default values. If the commands within high-slope-ring are set to the default parameters, the high-slope node will not appear in save config and show config output unless the detail parameter is present.

This command enables the context to define the low priority Random Early Detection (RED) slope graph. A low priority ring RED slope is used managing access to the shared portion of the buffer pool for low priority or out-of-profile packets that are received on ring ports and egress out of ring ports.

The low-slope-ring parameters can be changed at any time and the affected buffer pool high priority RED slopes will be adjusted appropriately.

The no form of this command reverts the high slope configuration commands to the default values. If the commands within low-slope-ring are set to the default parameters, the low-slope node will not appear in save config and show config output unless the detail parameter is present.

This command sets the low priority or high priority Weighted Random Early Detection (WRED) slope position for the reserved and shared buffer average utilization value where the packet discard probability rises directly to one. The percent parameter is expressed as a percentage of the shared buffer size.

The no form of this command reverts the max-avg value to the default setting. If the current startavg setting is larger than the default, an error will occur and the max-avg value will not be changed to the default.

This command sets the low priority or high priority Random Early Detection (RED) slope position for the maximum non-one packet discard probability value before the packet discard probability rises directly to one. The percent parameter is expressed as a percentage of packet discard probability where always discard is a probability of 1. A max-prob value of 75 represents 75% of 1, or a packet discard probability of 0.75.

The no form of this command reverts the value to the default.

This command enables or disables the administrative status of the Random Early Detection slope.

By default, all slopes are shutdown and have to be explicitly enabled (no shutdown).

The no form of this command administratively enables the RED slope.

This command sets the low priority or high priority Random Early Detection (RED) slope position for the shared buffer average utilization value where the packet discard probability starts to increase above zero. The percent parameter is expressed as a percentage of the shared buffer size.

The no form of this command reverts the value to the default. If the max-avg setting is smaller than the default, an error will occur and the start-avg setting will not be changed to the default.

This command copies existing QoS policy entries for a QoS policy ID to another QoS 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.

This command displays slope policy information.