Specifications

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Catalyst 4500 Se ries S wit ch C is co IO S C om mand R efer ence —Re lease I OS XE 3 .3.0 XO(1 5.1 (1)XO)

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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

tx-queue

To configure the transmit queue parameters for an interface, use the tx-queue command. To return to the

default value, use the no form of this command.

tx-queue [queue-id] {bandwidt h ban dwidth-rate | priority high | shape shape-rate}

no tx-queue

Syntax Description

Defaults The default settings are as follows:

• Encapsulation type is dependent on the platform or interface hardware .

• QoS enabled bandwidth rate is 4:255.

• QoS disabled bandwidth r ate is 255:1.

Command Modes Interface configur ation mode

Usage Guidelines The bandwidth and shape rates cannot exceed the maximum speed of the interface.

The bandwidth can be configured only on the following:

• Ports on the WS-X4306-G B module

• The two 1000BASE-X ports on the WS-X4232-GB-RJ module

• The first two ports on the WS-X441 8-GB module

• The two 1000BASE-X ports on the WS-X4412-2GB-TX modul e

Only transmit queue 3 can be configured to be a high-priority transmit queue.

Examples This example shows how to allocate ba ndwidth on queue 1 to 100 Mbps:

Switch(config-if)# tx-queue 1

Switch(config-if-tx-queue)# bandwidth 1000000000

Switch(config-if-tx-queue)#

This example shows how to configure transmit queue 3 to the high priority:

Switch(config-if)# tx-queue 3

Switch(config-if-tx-queue)# priority high

Switch(config-if-tx-queue)#

queue-id (Optional) Number of the queue; valid values are from 1 to 4.

bandwidth bandwidth-rate Specifies traffic ban dwidth; valid values are fr om 16000 to

1000000000 bits per second.

priority high Specifies high priority.

shape shape-rate Specifies the maximum rate that packets are passed through a

transmit queue; valid values are from 16000 to 1000000000 bits per

second.