Cisco Catalyst 3750 User Manual

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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 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 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
12.1(11)AX This command was introduced.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing