Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
mls qos srr-queue input bandwidth
mls qos srr-queue input bandwidth
Use the mls qos srr-queue input bandwidth global configuration command on the switch stack or on
a standalone switch to assign shaped round robin (SRR) weights to an ingress queue. The ratio of the
weights is the ratio of the frequency in which the SRR scheduler dequeues packets from each queue. Use
the no form of this command to return to the default setting.
mls qos srr-queue input bandwidth weight1 weight2
no mls qos srr-queue input bandwidth
Syntax Description
Defaults Weight1 and weight2 are 4 (1/2 of the bandwidth is equally shared between the two queues).
Command Modes Global configuration
Command History
Usage Guidelines SRR services the priority queue for its configured weight as specified by the bandwidth keyword in the
mls qos srr-queue input priority-queue queue-id bandwidth weight global configuration command.
Then SRR shares the remaining bandwidth with both ingress queues and services them as specified by
the weights configured with the mls qos srr-queue input bandwidth weight1 weight2 global
configuration command.
You specify which ingress queue is the priority queue by using the mls qos srr-queue input
priority-queue global configuration command.
Examples This example shows how to assign the ingress bandwidth for the queues in the stack. Priority queueing
is disabled, and the shared bandwidth ratio allocated to queue 1 is 25/(25+75) and to queue 2 is
75/(25+75):
Switch(config)# mls qos srr-queue input priority-queue 2 bandwidth 0
Switch(config)# mls qos srr-queue input bandwidth 25 75
In this example, queue 2 has three times the bandwidth of queue 1; queue 2 is serviced three times as
often as queue 1.
weight1 weight2 Ratio of weight1 and weight2 determines the ratio of the frequency in which the
SRR scheduler dequeues packets from ingress queues 1 and 2. The range is 1 to
100. Separate each value with a space.
Release Modification
12.2(53)SE2 This command was introduced.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing