set cos port-config txq

Use this command to set the Class of Service transmit queue port group configuration.

Syntax

set cos port-config txq group-type-index [name name] [ports port-list] [append | clear] [arb-slice slice-list] [arb-percentage percentage-list] [enhanced-groups group-id] [enhanced-percentage bandwidth]

Parameters

`group-type-index`	(Optional) Displays information for a specific port group-type index. Valid entries are in the form of group.type. Group can be 0 - 11, with 0 designating the default group, and 1 - 11 reserved for user-defined groups. Port type can be 0 - 1 for the S- and K-Series and 0 for the 7100-Series.
name `name`	(Optional) Specifies a name for this configuration.
ports `port-list`	(Optional) Applies this configuration to one or more ports in the port group.
append \| clear	(Optional) Appends or clears port designations from a previously configured port group.
arb-slice `slice-list`	(Optional) The number of slices of transmit resources allocated to each queue of a port. Input is in the format of x0,x1,x2,...,xn.
arb-percentage `percentage-list`	(Optional) The percentage of slices of transmit resources allocated to each queue of a port. Input is in the format of x0,x1,x2,...,xn.
enhanced-groups `group-id`	(Optional) The enhanced transmission selection groups assigned to port transmit queues.
enhanced-percentage `bandwidth`	(Optional) The amount of bandwidth assigned to the enhanced transmission selection queue group

Defaults

If a name is not specified, no name will be applied.
If not specified, this configuration will be applied to all ports in the port group.
If append or clear are not specified, port(s) will be appended to the specified port grouping.
If arb-slice or arb-percentage values are not specified, default allocations will be applied.
If enhanced-groups is specified, the group ID or 0 must be specified.
If enhanced-percentage is specified, a bandwidth percentage must be specified for each enhanced group or 0 is no enhanced group is configured using the enhanced-groups option

Mode

All command modes.

Usage

Enhanced Transmission Selection (ETS) queuing provides for the designation of two or more traffic class queues (0 - 7) to be allocated for bandwidth that will not be serviced until all non-ETS queues are empty.

Use the enhanced-groups option to specify the group ID of the ETS queue. Each queue is specified, delineated by a comma (,), with either a group ID or 0 for a non-ETS queue. The S- and K-Series supports the configuration of up to eight ETS groups. The 7100-Series supports the configuration of up to two ETS groups.

Use the enhanced-percentage option to specify the percentage of bandwidth to be applied to the ETS group (traffic class). Aggregate ETS bandwidth must total 100%. A value is specified for each traffic class 0 - 7 delineated by a comma (,) as either a bandwidth percentage for any traffic class configured for ETS queuing or 0 for non-ETS traffic classes.

See Data Center Bridging Configuration in the S-, K-, and 7100 Series Configuration Guide for ETS configuration details.

Examples

This example shows how to create a CoS transmit queue port group entry named testTxq with a port group ID of 2 and a port type ID of 0:

System(rw)->set cos port-config txq 2.0 name “testTxq”

This example assigns ETS groups to an 11 queue device, followed by allocation of ETS bandwidth to the assigned groups. Using the enhanced-groups option, ETS group to queue assignment is:

Group 2 to queues 0, 1, and 2
Group 4 to queues 3 and 4

Using the enhanced-percentage option the assigned ETS bandwidth allocation is:

30 percent to group 2

70 percent to group 4

System(rw)->set cos port-config txq 2.1 name testTxq enhanced-groups 2,2,2,4,4,0,0,0,0,0,0,0 enhanced-percentage 0,30,0,70,0,0,0,0

Published May 2016prev | next

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